Float fixes, sensible settings

.gitignore

@@ -1,4 +1,11 @@
 build/
 concept/
+release/
 packed/
 vcpkg_installed/
+out/
+include/imgui/
+include/glm/
+include/tinyxml2
+workshop/resources
+.vs/

CMakeLists.txt

@@ -1,4 +1,5 @@
 cmake_minimum_required(VERSION 3.15)
+
 if(WIN32 AND DEFINED ENV{VCPKG_ROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
     set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
         CACHE STRING "Vcpkg toolchain file")
@@ -7,53 +8,68 @@ endif()
 project(anm2ed CXX)
 
 find_package(SDL3 REQUIRED)
-find_package(GLEW REQUIRED)
 find_package(OpenGL REQUIRED)
 
-# Gather project sources
-file(GLOB SOURCES
-    "include/imgui/imgui.cpp"
-    "include/imgui/imgui_draw.cpp"
-    "include/imgui/imgui_tables.cpp"
-    "include/imgui/imgui_widgets.cpp"
-    "include/imgui/backends/imgui_impl_sdl3.cpp"
-    "include/imgui/backends/imgui_impl_opengl3.cpp"
-    "include/tinyxml2/tinyxml2.cpp"
-    "${PROJECT_SOURCE_DIR}/src/*.cpp"
-	"${PROJECT_SOURCE_DIR}/src/*.h"
+set(GLAD_SRC
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/glad/glad.cpp
 )
 
-if (WIN32)
-    enable_language("RC")
-    set (WIN32_RESOURCES ${CMAKE_CURRENT_SOURCE_DIR}/assets/Icon.rc)
-endif()
+set(IMGUI_SRC
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui/imgui.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui/imgui_draw.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui/imgui_widgets.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui/imgui_tables.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui/backends/imgui_impl_sdl3.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui/backends/imgui_impl_opengl3.cpp
+)
 
-add_executable(${PROJECT_NAME} ${SOURCES} ${WIN32_RESOURCES})
+set(TINYXML2_SRC
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/tinyxml2/tinyxml2.cpp
+)
+
+file(GLOB PROJECT_SRC
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/*.h
+)
+
+add_executable(${PROJECT_NAME}
+    ${GLAD_SRC}
+    ${IMGUI_SRC}
+    ${TINYXML2_SRC}
+    ${PROJECT_SRC}
+)
+
+if(WIN32)
+    enable_language(RC)
+    target_sources(${PROJECT_NAME} PRIVATE assets/Icon.rc)
+    set_target_properties(${PROJECT_NAME} PROPERTIES WIN32_EXECUTABLE TRUE)
+endif()
 
 target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_23)
 
-target_include_directories(${PROJECT_NAME} PRIVATE include include/imgui include/tinyxml2 src)
+target_include_directories(${PROJECT_NAME} PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/glad
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/imgui
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/tinyxml2
+    ${CMAKE_CURRENT_SOURCE_DIR}/src
+)
 
-if (NOT MSVC)
-    set(CMAKE_CXX_FLAGS "-O2 -std=c++23 -Wall -Wextra -pedantic -fmax-errors=1")
+if(MSVC)
+    target_compile_options(${PROJECT_NAME} PRIVATE /std:c++latest /EHsc)
+    target_link_options(${PROJECT_NAME} PRIVATE /STACK:0xffffff)
 else()
-    set(CMAKE_CXX_FLAGS "/std:c++latest /EHsc") 
-    target_link_options(${PROJECT_NAME} PRIVATE "/STACK:0xffffff")
-endif()
-
-if (CMAKE_BUILD_TYPE STREQUAL "Debug")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DDEBUG -g")
-else()
-    set(CMAKE_BUILD_TYPE "Release")
-endif()
-
-if(NOT MSVC)
+    target_compile_options(${PROJECT_NAME} PRIVATE -O2 -std=c++23 -Wall -Wextra -pedantic -fmax-errors=1)
+    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+        target_compile_options(${PROJECT_NAME} PRIVATE -DDEBUG -g)
+    else()
+        set(CMAKE_BUILD_TYPE "Release")
+    endif()
     target_link_libraries(${PROJECT_NAME} PRIVATE m)
 endif()
 
-target_link_libraries(${PROJECT_NAME} PRIVATE OpenGL::GL GLEW::GLEW SDL3::SDL3)
+target_link_libraries(${PROJECT_NAME} PRIVATE OpenGL::GL SDL3::SDL3)
 
 message("System: ${CMAKE_SYSTEM_NAME}")
 message("Project: ${PROJECT_NAME}")
-message("Build: ${CMAKE_BUILD_TYPE}")
-message("Flags: ${CMAKE_CXX_FLAGS}")
+message("Build: ${CMAKE_BUILD_TYPE}")

CMakeSettings.json

@@ -0,0 +1,26 @@
+{
+  "configurations": [
+    {
+      "name": "x64-Debug",
+      "generator": "Ninja",
+      "configurationType": "Debug",
+      "inheritEnvironments": [ "msvc_x64_x64" ],
+      "buildRoot": "${projectDir}\\build\\${name}",
+      "installRoot": "${projectDir}\\install\\${name}",
+      "cmakeCommandArgs": "",
+      "buildCommandArgs": "",
+      "ctestCommandArgs": ""
+    },
+    {
+      "name": "x64-Release",
+      "generator": "Ninja",
+      "configurationType": "Release",
+      "inheritEnvironments": [ "msvc_x64_x64" ],
+      "buildRoot": "${projectDir}\\build\\${name}",
+      "installRoot": "${projectDir}\\install\\${name}",
+      "cmakeCommandArgs": "",
+      "buildCommandArgs": "",
+      "ctestCommandArgs": ""
+    }
+  ]
+}

README.md

@@ -6,23 +6,37 @@ A reimplementation of *The Binding of Isaac: Rebirth*'s proprietary animation ed
 
 ## Features
 - Extended version of the original proprietary Nicalis animation editor
-- Smooth [Dear ImGui](https://github.com/ocornut/imgui) interface; docking, dragging and dropping, etc.
+- Smooth [Dear ImGui](https://github.com/ocornut/imgui) interface; docking, dragging and dropping, etc. You might be familiar with it from You might be familiar with it from (Repentogon)
 - New features
-    - Can output .webm or *.png sequence
+    - Can output .webm, .mp4 or *.png sequence (wih FFmpeg)
     - Cutting, copying and pasting
     - Additional wizard options
     - Robust snapshot (undo/redo) system
-    - Additional hotkeys/shortcuts
+    - Additional hotkeys/shortcuts (rebindable!)
+    - Onionskinning
     - Settings that will preserve on exit (stored in %APPDATA% on Windows or ~/.local/share on Linux)
 
+### Note: Difference from Nicalis editor
+Layers/nulls are handled differently (in their own window) and are not on the timeline! Add a layer/null in the Layers/Nulls window, and then add a LayerAnimation/NullAnimation in the timeline!
+
+### Note: Rendering Animations
+You will need FFmpeg installed! Get it from [here](https://ffmpeg.org/download.html), and point to the downloaded ffmpeg executable within the program!
+
 ## Dependencies
 Download these from your package manager:
 - SDL3
-- GLEW
   
-Note, to render animations, you'll need to download [FFmpeg](https://ffmpeg.org/download.html) and specify its install path in the program.
+## Build
 
-## Build (Linux)
+### Windows
+
+Visual Studio is recommended; make sure your installation has "Desktop development with C++" and ".NET desktop development" workloads.
+
+Install and configure [vcpkg](https://vcpkg.io/en/).
+
+Build should be straightforward from there.
+
+### Linux
 
 After cloning and enter the repository's directory, make sure to initialize the submodules:
 
@@ -35,4 +49,7 @@ mkdir build
 cd build
 cmake ..
 make 
-```
+```
+
+## Happy animating!
+![Isaac](https://private-user-images.githubusercontent.com/129694724/482938896-b7f4c7c4-ce38-4062-81e9-bea119c66d1a.gif?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3NTc4MDY3NTIsIm5iZiI6MTc1NzgwNjQ1MiwicGF0aCI6Ii8xMjk2OTQ3MjQvNDgyOTM4ODk2LWI3ZjRjN2M0LWNlMzgtNDA2Mi04MWU5LWJlYTExOWM2NmQxYS5naWY_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjUwOTEzJTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI1MDkxM1QyMzM0MTJaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT0xZmU3YmExYWJhZjg1NGZiNTNjODM0NGYyZGI5MjM2MzIxNGM1YTEyOWM2MjAxNDQwZWJhODRhMzUxYjcyZjQ5JlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCJ9.ZROJVPS4oIyhl3kt-FQc3DjI5mci32AHwStjG0Sk8TM)

assets/atlas_data_write.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+INPUT="atlas.png"
+OUTPUT="../src/PACKED.h"
+TMP="atlas.bytes"
+
+# Ensure deps
+command -v optipng >/dev/null 2>&1 || { echo "error: optipng not found in PATH" >&2; exit 1; }
+command -v xxd     >/dev/null 2>&1 || { echo "error: xxd not found in PATH" >&2; exit 1; }
+
+# 1) Optimize PNG in place
+optipng -o7 "$INPUT" >/dev/null
+
+# 2) Extract ONLY the bytes from xxd -i (between '= {' and '};')
+#    Using awk avoids the earlier '{' vs '= {' mismatch bug.
+xxd -i "$INPUT" \
+  | awk '
+      /= *\{/ {inside=1; next}
+      inside && /};/ {inside=0; exit}
+      inside {print}
+    ' > "$TMP"
+
+# Sanity check: make sure we got something
+if ! [ -s "$TMP" ]; then
+  echo "error: failed to extract bytes from xxd output" >&2
+  exit 1
+fi
+
+# 3) Replace ONLY the bytes inside TEXTURE_ATLAS[] initializer
+#    - Find the exact declaration line for TEXTURE_ATLAS
+#    - Print that line
+#    - On the following line with just '{', print it, then insert bytes,
+#      then skip everything until the matching '};' and print that once.
+awk -v tmpfile="$TMP" '
+  BEGIN { state=0 }  # 0=normal, 1=after decl waiting for {, 2=skipping old bytes until };
+
+  # Match the TEXTURE_ATLAS declaration line precisely
+  $0 ~ /^[[:space:]]*const[[:space:]]+u8[[:space:]]+TEXTURE_ATLAS\[\][[:space:]]*=/ {
+    print; state=1; next
+  }
+
+  # After the decl, the next line with a lone "{" starts the initializer
+  state==1 && $0 ~ /^[[:space:]]*{[[:space:]]*$/ {
+    print               # print the opening brace line
+    while ((getline line < tmpfile) > 0) print line  # insert fresh bytes
+    close(tmpfile)
+    state=2             # now skip old initializer content until we hit the closing "};"
+    next
+  }
+
+  # While skipping, suppress lines until the closing "};", which we reprint once
+  state==2 {
+    if ($0 ~ /^[[:space:]]*};[[:space:]]*$/) {
+      print             # print the closing brace+semicolon
+      state=0
+    }
+    next
+  }
+
+  # Default: pass through unchanged
+  { print }
+' "$OUTPUT" > "$OUTPUT.tmp" && mv "$OUTPUT.tmp" "$OUTPUT"
+
+rm -f "$TMP"
+echo "Updated $OUTPUT with optimized bytes from $INPUT."

include/KHR/khrplatform.h

@@ -0,0 +1,311 @@
+#ifndef __khrplatform_h_
+#define __khrplatform_h_
+
+/*
+** Copyright (c) 2008-2018 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+/* Khronos platform-specific types and definitions.
+ *
+ * The master copy of khrplatform.h is maintained in the Khronos EGL
+ * Registry repository at https://github.com/KhronosGroup/EGL-Registry
+ * The last semantic modification to khrplatform.h was at commit ID:
+ *      67a3e0864c2d75ea5287b9f3d2eb74a745936692
+ *
+ * Adopters may modify this file to suit their platform. Adopters are
+ * encouraged to submit platform specific modifications to the Khronos
+ * group so that they can be included in future versions of this file.
+ * Please submit changes by filing pull requests or issues on
+ * the EGL Registry repository linked above.
+ *
+ *
+ * See the Implementer's Guidelines for information about where this file
+ * should be located on your system and for more details of its use:
+ *    http://www.khronos.org/registry/implementers_guide.pdf
+ *
+ * This file should be included as
+ *        #include <KHR/khrplatform.h>
+ * by Khronos client API header files that use its types and defines.
+ *
+ * The types in khrplatform.h should only be used to define API-specific types.
+ *
+ * Types defined in khrplatform.h:
+ *    khronos_int8_t              signed   8  bit
+ *    khronos_uint8_t             unsigned 8  bit
+ *    khronos_int16_t             signed   16 bit
+ *    khronos_uint16_t            unsigned 16 bit
+ *    khronos_int32_t             signed   32 bit
+ *    khronos_uint32_t            unsigned 32 bit
+ *    khronos_int64_t             signed   64 bit
+ *    khronos_uint64_t            unsigned 64 bit
+ *    khronos_intptr_t            signed   same number of bits as a pointer
+ *    khronos_uintptr_t           unsigned same number of bits as a pointer
+ *    khronos_ssize_t             signed   size
+ *    khronos_usize_t             unsigned size
+ *    khronos_float_t             signed   32 bit floating point
+ *    khronos_time_ns_t           unsigned 64 bit time in nanoseconds
+ *    khronos_utime_nanoseconds_t unsigned time interval or absolute time in
+ *                                         nanoseconds
+ *    khronos_stime_nanoseconds_t signed time interval in nanoseconds
+ *    khronos_boolean_enum_t      enumerated boolean type. This should
+ *      only be used as a base type when a client API's boolean type is
+ *      an enum. Client APIs which use an integer or other type for
+ *      booleans cannot use this as the base type for their boolean.
+ *
+ * Tokens defined in khrplatform.h:
+ *
+ *    KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
+ *
+ *    KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
+ *    KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
+ *
+ * Calling convention macros defined in this file:
+ *    KHRONOS_APICALL
+ *    KHRONOS_APIENTRY
+ *    KHRONOS_APIATTRIBUTES
+ *
+ * These may be used in function prototypes as:
+ *
+ *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
+ *                                  int arg1,
+ *                                  int arg2) KHRONOS_APIATTRIBUTES;
+ */
+
+#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
+#   define KHRONOS_STATIC 1
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APICALL
+ *-------------------------------------------------------------------------
+ * This precedes the return type of the function in the function prototype.
+ */
+#if defined(KHRONOS_STATIC)
+    /* If the preprocessor constant KHRONOS_STATIC is defined, make the
+     * header compatible with static linking. */
+#   define KHRONOS_APICALL
+#elif defined(_WIN32)
+#   define KHRONOS_APICALL __declspec(dllimport)
+#elif defined (__SYMBIAN32__)
+#   define KHRONOS_APICALL IMPORT_C
+#elif defined(__ANDROID__)
+#   define KHRONOS_APICALL __attribute__((visibility("default")))
+#else
+#   define KHRONOS_APICALL
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIENTRY
+ *-------------------------------------------------------------------------
+ * This follows the return type of the function  and precedes the function
+ * name in the function prototype.
+ */
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
+    /* Win32 but not WinCE */
+#   define KHRONOS_APIENTRY __stdcall
+#else
+#   define KHRONOS_APIENTRY
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIATTRIBUTES
+ *-------------------------------------------------------------------------
+ * This follows the closing parenthesis of the function prototype arguments.
+ */
+#if defined (__ARMCC_2__)
+#define KHRONOS_APIATTRIBUTES __softfp
+#else
+#define KHRONOS_APIATTRIBUTES
+#endif
+
+/*-------------------------------------------------------------------------
+ * basic type definitions
+ *-----------------------------------------------------------------------*/
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
+
+
+/*
+ * Using <stdint.h>
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+/*
+ * To support platform where unsigned long cannot be used interchangeably with
+ * inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t.
+ * Ideally, we could just use (u)intptr_t everywhere, but this could result in
+ * ABI breakage if khronos_uintptr_t is changed from unsigned long to
+ * unsigned long long or similar (this results in different C++ name mangling).
+ * To avoid changes for existing platforms, we restrict usage of intptr_t to
+ * platforms where the size of a pointer is larger than the size of long.
+ */
+#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__)
+#if __SIZEOF_POINTER__ > __SIZEOF_LONG__
+#define KHRONOS_USE_INTPTR_T
+#endif
+#endif
+
+#elif defined(__VMS ) || defined(__sgi)
+
+/*
+ * Using <inttypes.h>
+ */
+#include <inttypes.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
+
+/*
+ * Win32
+ */
+typedef __int32                 khronos_int32_t;
+typedef unsigned __int32        khronos_uint32_t;
+typedef __int64                 khronos_int64_t;
+typedef unsigned __int64        khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(__sun__) || defined(__digital__)
+
+/*
+ * Sun or Digital
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#if defined(__arch64__) || defined(_LP64)
+typedef long int                khronos_int64_t;
+typedef unsigned long int       khronos_uint64_t;
+#else
+typedef long long int           khronos_int64_t;
+typedef unsigned long long int  khronos_uint64_t;
+#endif /* __arch64__ */
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif 0
+
+/*
+ * Hypothetical platform with no float or int64 support
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#define KHRONOS_SUPPORT_INT64   0
+#define KHRONOS_SUPPORT_FLOAT   0
+
+#else
+
+/*
+ * Generic fallback
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#endif
+
+
+/*
+ * Types that are (so far) the same on all platforms
+ */
+typedef signed   char          khronos_int8_t;
+typedef unsigned char          khronos_uint8_t;
+typedef signed   short int     khronos_int16_t;
+typedef unsigned short int     khronos_uint16_t;
+
+/*
+ * Types that differ between LLP64 and LP64 architectures - in LLP64,
+ * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
+ * to be the only LLP64 architecture in current use.
+ */
+#ifdef KHRONOS_USE_INTPTR_T
+typedef intptr_t               khronos_intptr_t;
+typedef uintptr_t              khronos_uintptr_t;
+#elif defined(_WIN64)
+typedef signed   long long int khronos_intptr_t;
+typedef unsigned long long int khronos_uintptr_t;
+#else
+typedef signed   long  int     khronos_intptr_t;
+typedef unsigned long  int     khronos_uintptr_t;
+#endif
+
+#if defined(_WIN64)
+typedef signed   long long int khronos_ssize_t;
+typedef unsigned long long int khronos_usize_t;
+#else
+typedef signed   long  int     khronos_ssize_t;
+typedef unsigned long  int     khronos_usize_t;
+#endif
+
+#if KHRONOS_SUPPORT_FLOAT
+/*
+ * Float type
+ */
+typedef          float         khronos_float_t;
+#endif
+
+#if KHRONOS_SUPPORT_INT64
+/* Time types
+ *
+ * These types can be used to represent a time interval in nanoseconds or
+ * an absolute Unadjusted System Time.  Unadjusted System Time is the number
+ * of nanoseconds since some arbitrary system event (e.g. since the last
+ * time the system booted).  The Unadjusted System Time is an unsigned
+ * 64 bit value that wraps back to 0 every 584 years.  Time intervals
+ * may be either signed or unsigned.
+ */
+typedef khronos_uint64_t       khronos_utime_nanoseconds_t;
+typedef khronos_int64_t        khronos_stime_nanoseconds_t;
+#endif
+
+/*
+ * Dummy value used to pad enum types to 32 bits.
+ */
+#ifndef KHRONOS_MAX_ENUM
+#define KHRONOS_MAX_ENUM 0x7FFFFFFF
+#endif
+
+/*
+ * Enumerated boolean type
+ *
+ * Values other than zero should be considered to be true.  Therefore
+ * comparisons should not be made against KHRONOS_TRUE.
+ */
+typedef enum {
+    KHRONOS_FALSE = 0,
+    KHRONOS_TRUE  = 1,
+    KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
+} khronos_boolean_enum_t;
+
+#endif /* __khrplatform_h_ */

src/COMMON.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include <SDL3/SDL.h>
-#include <GL/glew.h>
+#include <glad/glad.h>
 #include <GL/gl.h>
 #include <glm/glm/glm.hpp>
 #include <glm/glm/gtc/type_ptr.hpp>
@@ -10,6 +10,7 @@
 
 #include <algorithm>                   
 #include <chrono>                      
+#include <climits>
 #include <cmath>                          
 #include <cstring>
 #include <filesystem>                  
@@ -24,7 +25,7 @@
 #include <string>
 #include <unordered_set>                      
 #include <variant>                  
-#include <vector>                  
+#include <vector>           
 
 typedef uint8_t u8;
 typedef uint16_t u16;
@@ -50,15 +51,17 @@ using namespace glm;
 #define FLOAT_TO_U8(x) (static_cast<u8>((x) * 255.0f))
 #define U8_TO_FLOAT(x) ((x) / 255.0f)
 #define PERCENT_TO_UNIT(x) (x / 100.0f)
+#define UNIT_TO_PERCENT(x) (x * 100.0f)
 #define SECOND 1000.0f
 #define TICK_DELAY (SECOND / 30.0)
 #define UPDATE_DELAY (SECOND / 120.0)
 #define ID_NONE -1
 #define INDEX_NONE -1
+#define VALUE_NONE -1
 #define TIME_NONE -1.0f
 #define GL_ID_NONE 0
 
-#if defined(_WIN32)
+#ifdef _WIN32
   #define POPEN  _popen
   #define PCLOSE _pclose
   #define PWRITE_MODE "wb"
@@ -70,7 +73,6 @@ using namespace glm;
   #define PREAD_MODE "r"
 #endif
 
-
 static const GLuint GL_TEXTURE_INDICES[] = {0, 1, 2, 2, 3, 0};
 static const vec4 COLOR_RED = {1.0f, 0.0f, 0.0f, 1.0f};
 static const vec4 COLOR_GREEN = {0.0f, 1.0f, 0.0f, 1.0f};
@@ -103,9 +105,30 @@ static inline std::string string_quote(const std::string& string)
     return "\"" + string + "\"";
 }
 
-#define FLOAT_FORMAT_MAX_DECIMALS 2
-#define FLOAT_FORMAT_EPSILON 1e-6f
-static constexpr f32 FLOAT_FORMAT_POW10[] = {1.f, 10.f, 100.f};
+static inline std::string string_to_lowercase(std::string string) {
+    std::transform
+    (
+        string.begin(), string.end(), string.begin(),
+        [](u8 character){ return std::tolower(character); }
+    );
+    return string;
+}
+
+
+#define FLOAT_FORMAT_MAX_DECIMALS 9
+#define FLOAT_FORMAT_EPSILON 1e-9f
+static constexpr f32 FLOAT_FORMAT_POW10[] = {
+    1.f,
+    10.f,
+    100.f,
+    1000.f,
+    10000.f,
+    100000.f,
+    1000000.f,
+    10000000.f,
+    100000000.f,
+    1000000000.f
+};
 
 static inline s32 f32_decimals_needed(f32 value)
 {
@@ -119,8 +142,11 @@ static inline s32 f32_decimals_needed(f32 value)
     for (s32 decimalCount = 1; decimalCount <= FLOAT_FORMAT_MAX_DECIMALS; ++decimalCount)
     {
         f32 scaledFraction = fractionalPart * FLOAT_FORMAT_POW10[decimalCount];
-        if (fabsf(scaledFraction - roundf(scaledFraction)) < FLOAT_FORMAT_EPSILON * FLOAT_FORMAT_POW10[decimalCount])
+        if (fabsf(scaledFraction - roundf(scaledFraction)) <
+            FLOAT_FORMAT_EPSILON * FLOAT_FORMAT_POW10[decimalCount])
+        {
             return decimalCount;
+        }
     }
     return FLOAT_FORMAT_MAX_DECIMALS;
 }
@@ -129,7 +155,9 @@ static inline const char* f32_format_get(f32 value)
 {
     static std::string formatString;
     const s32 decimalCount = f32_decimals_needed(value);
-    formatString = (decimalCount == 0) ? "%.0f" : ("%." + std::to_string(decimalCount) + "f");
+    formatString = (decimalCount == 0)
+        ? "%.0f"
+        : ("%." + std::to_string(decimalCount) + "f");
     return formatString.c_str();
 }
 
@@ -139,69 +167,12 @@ static inline const char* vec2_format_get(const vec2& value)
     const s32 decimalCountX = f32_decimals_needed(value.x);
     const s32 decimalCountY = f32_decimals_needed(value.y);
     const s32 decimalCount = (decimalCountX > decimalCountY) ? decimalCountX : decimalCountY;
-    formatString = (decimalCount == 0) ? "%.0f" : ("%." + std::to_string(decimalCount) + "f");
+    formatString = (decimalCount == 0)
+        ? "%.0f"
+        : ("%." + std::to_string(decimalCount) + "f");
     return formatString.c_str();
 }
 
-static inline std::string path_canonical_resolve
-(
-    const std::string& inputPath,
-    const std::string& basePath = std::filesystem::current_path().string()
-)
-{
-    auto strings_equal_ignore_case = [](std::string a, std::string b) {
-        auto to_lower = [](unsigned char c) { return static_cast<char>(std::tolower(c)); };
-        std::transform(a.begin(), a.end(), a.begin(), to_lower);
-        std::transform(b.begin(), b.end(), b.begin(), to_lower);
-        return a == b;
-    };
-
-    std::string sanitized = inputPath;
-    std::replace(sanitized.begin(), sanitized.end(), '\\', '/');
-
-    std::filesystem::path normalizedPath = sanitized;
-    std::filesystem::path absolutePath = normalizedPath.is_absolute()
-        ? normalizedPath
-        : (std::filesystem::path(basePath) / normalizedPath);
-
-    std::error_code error;
-    if (std::filesystem::exists(absolutePath, error)) {
-        std::error_code canonicalError;
-        std::filesystem::path canonicalPath = std::filesystem::weakly_canonical(absolutePath, canonicalError);
-        return (canonicalError ? absolutePath : canonicalPath).generic_string();
-    }
-
-    std::filesystem::path resolvedPath = absolutePath.root_path();
-    std::filesystem::path remainingPath = absolutePath.relative_path();
-
-    for (const std::filesystem::path& segment : remainingPath) {
-        std::filesystem::path candidatePath = resolvedPath / segment;
-        if (std::filesystem::exists(candidatePath, error)) {
-            resolvedPath = candidatePath;
-            continue;
-        }
-
-        bool matched = false;
-        if (std::filesystem::exists(resolvedPath, error) && std::filesystem::is_directory(resolvedPath, error)) {
-            for (const auto& directoryEntry : std::filesystem::directory_iterator(resolvedPath, error)) {
-                if (strings_equal_ignore_case(directoryEntry.path().filename().string(), segment.string())) {
-                    resolvedPath = directoryEntry.path();
-                    matched = true;
-                    break;
-                }
-            }
-        }
-        if (!matched) return sanitized; 
-    }
-
-    if (!std::filesystem::exists(resolvedPath, error))
-        return sanitized;
-
-    std::error_code canonicalError;
-    std::filesystem::path canonicalPath = std::filesystem::weakly_canonical(resolvedPath, canonicalError);
-    return (canonicalError ? resolvedPath : canonicalPath).generic_string();
-};
-
 static inline std::string working_directory_from_file_set(const std::string& path)
 {
     std::filesystem::path filePath = path;
@@ -236,7 +207,6 @@ static inline bool path_is_valid(const std::filesystem::path& pathCheck)
     std::error_code ec;
 
     if (fs::is_directory(pathCheck, ec)) return false;
-    if (fs::exists(pathCheck, ec) && !fs::is_regular_file(pathCheck, ec)) return false;
 
     fs::path parentDir = pathCheck.has_parent_path() ? pathCheck.parent_path() : fs::path(".");
     if (!fs::is_directory(parentDir, ec)) return false;
@@ -247,16 +217,11 @@ static inline bool path_is_valid(const std::filesystem::path& pathCheck)
     testStream.close();
 
     if (!existedBefore && isValid)
-        fs::remove(pathCheck, ec); // cleanup if we created it
+        fs::remove(pathCheck, ec);
 
     return isValid;
 }
 
-static inline const char* enum_to_string(const char* array[], s32 count, s32 index) 
-{ 
-    return (index >= 0 && index < count) ? array[index] : ""; 
-};
-
 static inline s32 string_to_enum(const std::string& string, const char* const* array, s32 n) 
 {
     for (s32 i = 0; i < n; i++) 
@@ -286,8 +251,10 @@ static inline s32 map_next_id_get(const std::map<s32, T>& map)
     return id;
 }
 
-template<typename T>
-static inline T* map_find(std::map<s32, T>& map, s32 id) 
+
+template <typename Map>
+static inline auto map_find(Map& map, typename Map::key_type id)
+    -> typename Map::mapped_type* 
 {
     if (auto it = map.find(id); it != map.end())
         return &it->second;
@@ -342,13 +309,54 @@ static inline void map_insert_shift(std::map<int, T>& map, s32 index, const T& v
     map[insertIndex] = value;
 }
 
+template <typename T>
+void vector_value_erase(std::vector<T>& v, const T& value) 
+{
+    v.erase(std::remove(v.begin(), v.end(), value), v.end());
+}
 
+template <typename T>
+void vector_value_swap(std::vector<T>& v, const T& a, const T& b) 
+{
+    for (auto& element : v) 
+    {
+        if (element == a) element = b;
+        else if (element == b) element = a;
+    }
+}
 
-#define DEFINE_ENUM_TO_STRING_FUNCTION(function, array, count) \
-    static inline std::string function(s32 index)              \
-    {                                                          \
-        return enum_to_string(array, count, index);            \
-    };
+static inline mat4 quad_model_get(vec2 size = {}, vec2 position = {}, vec2 pivot = {}, vec2 scale = vec2(1.0f), f32 rotation = {})
+{
+    vec2 scaleAbsolute  = glm::abs(scale);
+    vec2 scaleSign = glm::sign(scale);
+    vec2 pivotScaled = pivot * scaleAbsolute;
+    vec2 sizeScaled  = size  * scaleAbsolute;
+
+    mat4 model(1.0f);
+    model = glm::translate(model, vec3(position - pivotScaled, 0.0f));
+    model = glm::translate(model, vec3(pivotScaled, 0.0f));
+    model = glm::scale(model, vec3(scaleSign, 1.0f));
+    model = glm::rotate(model, glm::radians(rotation), vec3(0, 0, 1));
+    model = glm::translate(model, vec3(-pivotScaled, 0.0f));
+    model = glm::scale(model, vec3(sizeScaled, 1.0f));
+    return model;
+}
+
+static inline mat4 quad_model_parent_get(vec2 position = {}, vec2 pivot = {}, vec2 scale = vec2(1.0f), f32 rotation = {})
+{
+    vec2 scaleSign = glm::sign(scale);
+    vec2 scaleAbsolute  = glm::abs(scale);
+    f32 handedness = (scaleSign.x * scaleSign.y) < 0.0f ? -1.0f : 1.0f;
+
+    mat4 local(1.0f);
+    local = glm::translate(local, vec3(pivot, 0.0f));
+    local = glm::scale(local, vec3(scaleSign, 1.0f));
+    local = glm::rotate(local, glm::radians(rotation) * handedness, vec3(0, 0, 1));
+    local = glm::translate(local, vec3(-pivot, 0.0f));
+    local = glm::scale(local, vec3(scaleAbsolute, 1.0f));
+
+    return glm::translate(mat4(1.0f), vec3(position, 0.0f)) * local;
+}
 
 #define DEFINE_STRING_TO_ENUM_FUNCTION(function, enumType, stringArray, count)    \
     static inline enumType function(const std::string& string)                    \
@@ -356,19 +364,30 @@ static inline void map_insert_shift(std::map<int, T>& map, s32 index, const T& v
         return static_cast<enumType>(string_to_enum(string, stringArray, count)); \
     };
 
+#define DATATYPE_LIST \
+    X(TYPE_INT,      s32) \
+    X(TYPE_BOOL,     bool) \
+    X(TYPE_FLOAT,    f32) \
+    X(TYPE_STRING,   std::string) \
+    X(TYPE_IVEC2,    ivec2) \
+    X(TYPE_IVEC2_WH, ivec2) \
+    X(TYPE_VEC2,     vec2) \
+    X(TYPE_VEC2_WH,  vec2) \
+    X(TYPE_VEC3,     vec3) \
+    X(TYPE_VEC4,     vec4)
 
-enum DataType
+enum DataType 
 {
-    TYPE_INT,
-    TYPE_BOOL,
-    TYPE_FLOAT,
-    TYPE_STRING,
-    TYPE_IVEC2,
-    TYPE_VEC2,
-    TYPE_VEC3,
-    TYPE_VEC4
+    #define X(symbol, ctype) symbol,
+    DATATYPE_LIST
+    #undef X
 };
 
+#define DATATYPE_TO_CTYPE(dt) DATATYPE_CTYPE_##dt
+#define X(symbol, ctype) typedef ctype DATATYPE_CTYPE_##symbol;
+DATATYPE_LIST
+#undef X
+
 enum OriginType
 {
     ORIGIN_TOP_LEFT,

src/PACKED.h

@@ -1,5 +1,3 @@
-// Includes packed resources (i.e., textures, shaders)
-
 #pragma once
 
 #include "COMMON.h"
@@ -7,104 +5,113 @@
 const u8 TEXTURE_ATLAS[] = 
 {
   0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d,
-  0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x78,
-  0x04, 0x03, 0x00, 0x00, 0x00, 0xff, 0x33, 0xea, 0xfd, 0x00, 0x00, 0x00,
+  0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0xa0,
+  0x04, 0x03, 0x00, 0x00, 0x00, 0x01, 0x5e, 0x74, 0xbf, 0x00, 0x00, 0x00,
   0x09, 0x70, 0x48, 0x59, 0x73, 0x00, 0x00, 0x0b, 0x12, 0x00, 0x00, 0x0b,
   0x12, 0x01, 0xd2, 0xdd, 0x7e, 0xfc, 0x00, 0x00, 0x00, 0x0f, 0x50, 0x4c,
-  0x54, 0x45, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x60, 0x60, 0x60, 0xff,
-  0xff, 0xff, 0x60, 0x60, 0x60, 0x15, 0x68, 0x14, 0xc2, 0x00, 0x00, 0x00,
+  0x54, 0x45, 0x00, 0x00, 0x00, 0x76, 0x76, 0x76, 0xff, 0xff, 0xff, 0x60,
+  0x60, 0x60, 0xff, 0xff, 0xff, 0x3e, 0xd5, 0x47, 0x6d, 0x00, 0x00, 0x00,
   0x03, 0x74, 0x52, 0x4e, 0x53, 0x00, 0x00, 0x00, 0xfa, 0x76, 0xc4, 0xde,
-  0x00, 0x00, 0x03, 0xf4, 0x49, 0x44, 0x41, 0x54, 0x78, 0xda, 0xed, 0x98,
-  0x6d, 0x6e, 0xde, 0x38, 0x0c, 0x84, 0x27, 0x20, 0x0f, 0xb0, 0xc1, 0x5e,
-  0x60, 0x81, 0x5c, 0x80, 0x9b, 0xe1, 0x01, 0x08, 0x88, 0xf7, 0x3f, 0xd3,
-  0x42, 0x94, 0x04, 0xa9, 0xad, 0x83, 0xd8, 0x0b, 0x34, 0xed, 0x8f, 0x4e,
-  0x90, 0xc8, 0xb4, 0xf9, 0x84, 0x5f, 0xd2, 0xeb, 0x20, 0xf8, 0x3f, 0x22,
-  0x71, 0x29, 0x31, 0x94, 0x9a, 0x97, 0xd7, 0xe1, 0x4f, 0xd6, 0x12, 0x42,
-  0xc6, 0xe1, 0x4f, 0xda, 0xf1, 0x0b, 0x99, 0x0e, 0x68, 0xdd, 0x07, 0x68,
-  0x90, 0x22, 0x87, 0x4b, 0x23, 0x09, 0x29, 0x73, 0x03, 0x29, 0x04, 0x64,
-  0x86, 0x22, 0xeb, 0x72, 0x7b, 0x90, 0xc2, 0x92, 0xed, 0x94, 0x84, 0xae,
-  0x1c, 0x80, 0x90, 0x38, 0x1c, 0xd4, 0x80, 0xd3, 0x16, 0x9b, 0x00, 0xc9,
-  0x61, 0xd1, 0xc4, 0xa4, 0xb2, 0xd7, 0xed, 0x30, 0x53, 0xba, 0x02, 0x84,
-  0x10, 0x13, 0x94, 0xac, 0xdb, 0x15, 0x26, 0x1b, 0xe9, 0x19, 0xdf, 0x02,
-  0x5e, 0x16, 0xed, 0x04, 0x1c, 0x2d, 0x0a, 0xc8, 0xe6, 0xd9, 0x01, 0x1d,
-  0xbd, 0x63, 0x0b, 0xd2, 0x3a, 0x20, 0xc4, 0x01, 0x28, 0x41, 0x60, 0x10,
-  0xe5, 0x8f, 0x66, 0xe2, 0x1d, 0x58, 0xd5, 0x17, 0x46, 0x2c, 0x00, 0x0b,
-  0x88, 0xee, 0x1f, 0xa1, 0x64, 0xcd, 0x08, 0x3c, 0xe7, 0x7c, 0x02, 0x8d,
-  0x5e, 0x01, 0x54, 0x35, 0x55, 0x21, 0x95, 0x06, 0x6d, 0x02, 0x7b, 0x70,
-  0xab, 0x4b, 0xf5, 0xb0, 0x14, 0x5d, 0x17, 0xc0, 0xdc, 0x1a, 0xca, 0x52,
-  0xa0, 0x9e, 0xcc, 0x18, 0x00, 0x94, 0x31, 0x7e, 0xf0, 0xf3, 0xcd, 0x87,
-  0xc0, 0x2f, 0x96, 0x92, 0x71, 0x65, 0x8b, 0x61, 0xd9, 0xd8, 0xda, 0xe7,
-  0xa2, 0x71, 0x6c, 0x81, 0xec, 0x6b, 0x1e, 0x00, 0xb9, 0x89, 0xa3, 0xbd,
-  0x70, 0x74, 0xaa, 0x83, 0x40, 0x07, 0x85, 0x7c, 0x07, 0x80, 0x37, 0x66,
-  0xd0, 0x8e, 0xd0, 0xcc, 0x4c, 0x12, 0xb0, 0xa2, 0x01, 0xc6, 0xe8, 0x9f,
-  0x8b, 0xb5, 0x0a, 0xa0, 0x91, 0xe4, 0xf0, 0xef, 0x84, 0x32, 0xb3, 0x91,
-  0xb1, 0x00, 0x25, 0x20, 0x65, 0x8b, 0xc9, 0x04, 0xa4, 0x00, 0xf1, 0xcc,
-  0x66, 0xb5, 0xd0, 0x9b, 0x2d, 0x60, 0x9d, 0x13, 0x96, 0x80, 0x56, 0xcf,
-  0xc5, 0xa0, 0xde, 0x9a, 0x7b, 0x0b, 0xf1, 0x6c, 0xcc, 0x13, 0x80, 0x10,
-  0x07, 0x50, 0xcf, 0xc5, 0xc0, 0x10, 0x31, 0x53, 0x36, 0x4b, 0x7a, 0x8a,
-  0x0f, 0x40, 0xb1, 0xce, 0xc9, 0x4a, 0x49, 0x4c, 0xe9, 0xdd, 0x56, 0x93,
-  0xe8, 0xdf, 0xe2, 0x42, 0x60, 0x45, 0xd8, 0xe7, 0x64, 0x15, 0xdd, 0x9f,
-  0x67, 0xb7, 0x21, 0x20, 0x61, 0x50, 0xd2, 0x33, 0x67, 0xd1, 0x64, 0xb7,
-  0x0d, 0xc9, 0xa8, 0xb6, 0x92, 0x00, 0xe9, 0x91, 0xd5, 0x25, 0x47, 0x1d,
-  0x4a, 0x56, 0x5f, 0xd1, 0x01, 0x69, 0x6e, 0x05, 0x75, 0x00, 0x62, 0xd3,
-  0x8e, 0xb2, 0x6b, 0xb4, 0x5e, 0x83, 0xcb, 0x9c, 0x83, 0xab, 0x2c, 0x1a,
-  0x91, 0xf4, 0xec, 0x40, 0xd9, 0xc2, 0x08, 0xba, 0x5e, 0x6d, 0x8d, 0xe8,
-  0x55, 0x21, 0xcb, 0x0e, 0xe0, 0xf5, 0x9f, 0xb2, 0x31, 0xec, 0xeb, 0xcd,
-  0xb7, 0x26, 0x9a, 0x79, 0xd8, 0x58, 0xf6, 0x73, 0x89, 0xed, 0xf5, 0x96,
-  0xc8, 0xbd, 0xee, 0xd4, 0xc4, 0x28, 0xc6, 0xbd, 0x96, 0x32, 0xf6, 0x7b,
-  0xa0, 0xd6, 0x5d, 0xbc, 0xac, 0xf0, 0x38, 0xa4, 0x05, 0x9c, 0xa9, 0xfd,
-  0x05, 0xfc, 0x4d, 0x76, 0x52, 0xc6, 0x6f, 0xb0, 0x09, 0x18, 0x5e, 0x01,
-  0x89, 0x8c, 0xb3, 0x3b, 0x52, 0x77, 0xc9, 0x58, 0x87, 0xb1, 0x03, 0x98,
-  0xc0, 0xcb, 0x2b, 0xe0, 0x54, 0x00, 0xd6, 0x42, 0x5d, 0x00, 0xeb, 0x80,
-  0x60, 0x7d, 0x70, 0x49, 0x8d, 0xc4, 0xce, 0x94, 0xa4, 0x8d, 0xc1, 0x3b,
-  0xd0, 0xc4, 0xc4, 0xd0, 0x1c, 0x62, 0x52, 0xe1, 0x06, 0x50, 0x29, 0xed,
-  0x08, 0x4e, 0x37, 0xa0, 0xdf, 0x33, 0x11, 0x2e, 0x09, 0x51, 0x40, 0x75,
-  0xa1, 0xed, 0x94, 0xf0, 0x2a, 0x8d, 0x0d, 0xd7, 0x80, 0x81, 0x26, 0x45,
-  0x9d, 0x29, 0x55, 0x80, 0xeb, 0x94, 0x28, 0x34, 0x61, 0x55, 0x6e, 0x05,
-  0x88, 0x19, 0x50, 0x01, 0x7e, 0x2c, 0x5a, 0x69, 0x20, 0x19, 0x73, 0x2a,
-  0xb6, 0xfa, 0x07, 0x91, 0x0a, 0x70, 0xd5, 0x56, 0x23, 0xb9, 0xc7, 0xb9,
-  0x46, 0x4a, 0xab, 0x00, 0x57, 0x83, 0x33, 0xd2, 0x16, 0x60, 0x1b, 0x20,
-  0x4a, 0x17, 0x5b, 0x63, 0x47, 0x38, 0x52, 0xd2, 0x66, 0x57, 0x9b, 0x6f,
-  0x5d, 0xd0, 0x3a, 0x40, 0x31, 0x80, 0x52, 0xab, 0xc6, 0xe5, 0xf6, 0xfe,
-  0x1a, 0xd9, 0x11, 0x1b, 0x43, 0x4a, 0x4c, 0xc5, 0xb0, 0xc7, 0x22, 0xd1,
-  0x7c, 0x27, 0x76, 0x24, 0xc9, 0x5c, 0x40, 0x58, 0x2d, 0xd3, 0x56, 0x27,
-  0x01, 0x9e, 0x00, 0x01, 0x88, 0x33, 0x46, 0x18, 0x9f, 0x0f, 0xb5, 0x4d,
-  0xa7, 0x56, 0xed, 0xec, 0x8a, 0xf5, 0x1e, 0x36, 0xb0, 0xf9, 0x4c, 0xeb,
-  0xfd, 0x2d, 0x86, 0x63, 0x92, 0x3e, 0x32, 0xa6, 0x83, 0x43, 0xc0, 0xba,
-  0x60, 0xa0, 0xd4, 0xf2, 0xfd, 0x2d, 0x19, 0x23, 0x00, 0x73, 0x54, 0x2b,
-  0x01, 0xf9, 0x16, 0x30, 0x24, 0xfb, 0x17, 0x94, 0x49, 0x66, 0xc1, 0x41,
-  0x7a, 0x54, 0x00, 0xa8, 0x03, 0xb4, 0xfd, 0x17, 0x8c, 0x10, 0x03, 0x98,
-  0xa9, 0xd6, 0xb4, 0x95, 0xb2, 0x02, 0x84, 0xb5, 0xd9, 0x19, 0xb1, 0xb9,
-  0xcc, 0x46, 0x2a, 0x04, 0x1d, 0x18, 0x95, 0xda, 0x0a, 0x20, 0xe8, 0x3a,
-  0x01, 0x00, 0x59, 0x2a, 0xc0, 0xd7, 0x3b, 0x51, 0x57, 0x00, 0x94, 0x26,
-  0xb0, 0x47, 0xa5, 0x50, 0x08, 0x99, 0x05, 0x60, 0x34, 0x11, 0xc7, 0x69,
-  0xdc, 0x35, 0x9c, 0x80, 0x49, 0xfa, 0xda, 0xd5, 0x18, 0x80, 0x61, 0x48,
-  0x56, 0x97, 0x6c, 0x03, 0x75, 0xbb, 0x0d, 0x0f, 0x7a, 0x2a, 0x02, 0x8d,
-  0xb8, 0x04, 0xb2, 0x04, 0x40, 0x17, 0xa0, 0x19, 0x11, 0x38, 0x24, 0x6b,
-  0xd2, 0x86, 0x2f, 0x95, 0x1c, 0xf1, 0xd4, 0x6e, 0x01, 0x1b, 0x62, 0x00,
-  0x2f, 0x9c, 0x86, 0x30, 0x84, 0x31, 0xba, 0xf1, 0x01, 0x20, 0x44, 0x07,
-  0x68, 0x9f, 0x01, 0xfb, 0x73, 0x65, 0x00, 0xb4, 0x7b, 0x80, 0x10, 0x13,
-  0xa0, 0x5d, 0x03, 0x27, 0x54, 0xf7, 0x63, 0x01, 0xb4, 0x0d, 0x94, 0xed,
-  0x6b, 0x3d, 0x6a, 0x50, 0x92, 0x5c, 0x00, 0xe3, 0x63, 0xe0, 0xdc, 0x39,
-  0xbe, 0x00, 0xff, 0x10, 0x38, 0x95, 0xb4, 0x09, 0x78, 0xec, 0x94, 0x32,
-  0xe9, 0x99, 0x40, 0x96, 0xf6, 0x07, 0xf2, 0x6e, 0x6b, 0xf9, 0x7f, 0x54,
-  0x74, 0x01, 0x67, 0x5b, 0x81, 0xf2, 0xbf, 0x05, 0x28, 0xb1, 0x9a, 0x75,
-  0x0f, 0x90, 0xe1, 0x98, 0x81, 0xb5, 0xdb, 0x75, 0x5c, 0x67, 0x5e, 0x01,
-  0x37, 0xb5, 0x8b, 0x7e, 0xac, 0xfc, 0x4e, 0x81, 0xef, 0x44, 0xbb, 0x06,
-  0x56, 0x05, 0x9f, 0x02, 0x8d, 0x25, 0xff, 0x3a, 0x00, 0x7f, 0x80, 0xdf,
-  0x12, 0x20, 0x69, 0x4f, 0x00, 0x76, 0xd9, 0x7d, 0x40, 0x08, 0x9a, 0xf0,
-  0x01, 0x60, 0xa0, 0xbd, 0x3c, 0x00, 0x58, 0x45, 0x8b, 0xfd, 0x0c, 0x80,
-  0x3f, 0xea, 0xdf, 0x2f, 0x05, 0xbe, 0xbe, 0xe8, 0xe7, 0x73, 0x78, 0x3e,
-  0xe9, 0xe7, 0x7b, 0x69, 0x13, 0xf6, 0xe7, 0x4c, 0x3f, 0x06, 0x94, 0xa5,
-  0xb8, 0x05, 0xec, 0x10, 0x8e, 0xfb, 0x80, 0x56, 0x00, 0xdc, 0x7e, 0x3f,
-  0x54, 0x08, 0xc7, 0x13, 0x40, 0xc9, 0x78, 0x04, 0xa0, 0x39, 0x9e, 0x01,
-  0xe5, 0x94, 0x53, 0x9f, 0xfd, 0x33, 0xf0, 0x3f, 0x53, 0x26, 0x87, 0x23,
-  0x59, 0xac, 0x2b, 0x06, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44,
-  0xae, 0x42, 0x60, 0x82
+  0x00, 0x00, 0x04, 0x62, 0x49, 0x44, 0x41, 0x54, 0x58, 0xc3, 0xed, 0x59,
+  0x5b, 0x6e, 0x24, 0x37, 0x0c, 0x2c, 0x80, 0xbc, 0x40, 0xee, 0x90, 0x03,
+  0x10, 0x20, 0x0f, 0xc0, 0x80, 0x75, 0xff, 0x33, 0xe5, 0x83, 0xa2, 0x5a,
+  0x63, 0xcf, 0xae, 0xa7, 0x37, 0xb1, 0x03, 0x6c, 0xac, 0x0f, 0x77, 0x6b,
+  0x5a, 0xd5, 0x7c, 0x15, 0x49, 0xb5, 0x0c, 0xfc, 0xc2, 0x20, 0x9f, 0xff,
+  0xae, 0xd9, 0xd7, 0x28, 0x00, 0xe0, 0xb1, 0x9e, 0x04, 0x40, 0x9a, 0x92,
+  0x76, 0xac, 0x27, 0xf3, 0x78, 0x21, 0xbd, 0x00, 0x01, 0xa0, 0x04, 0x98,
+  0xd0, 0x46, 0x26, 0x00, 0x04, 0x49, 0xe8, 0x9e, 0x36, 0xc0, 0x95, 0x80,
+  0x2e, 0x51, 0x64, 0xdf, 0xee, 0x15, 0xa4, 0x92, 0x83, 0x58, 0x2a, 0x29,
+  0x4b, 0xd8, 0x00, 0x9d, 0x17, 0xf6, 0x02, 0xc9, 0x56, 0x68, 0xe6, 0x6d,
+  0x4b, 0xbf, 0xa2, 0x67, 0x4c, 0x4d, 0x35, 0xec, 0xb5, 0x89, 0x41, 0x24,
+  0x9e, 0x01, 0x94, 0xd0, 0xd4, 0xb6, 0x34, 0x35, 0x7b, 0x81, 0x78, 0x90,
+  0xe5, 0xf6, 0x08, 0x28, 0x40, 0x13, 0xcc, 0x13, 0x50, 0x08, 0x03, 0x20,
+  0xee, 0x51, 0xee, 0x06, 0x48, 0xfb, 0x8e, 0x61, 0x64, 0x02, 0x9a, 0x4a,
+  0x1c, 0x00, 0xe1, 0xf2, 0xb8, 0xb8, 0xbb, 0x1b, 0x80, 0x48, 0xad, 0xb6,
+  0x75, 0x59, 0xcf, 0x04, 0xda, 0x4b, 0x00, 0x12, 0x03, 0x30, 0x77, 0x37,
+  0x33, 0x21, 0x01, 0xd2, 0xae, 0xc0, 0x75, 0xd4, 0x2e, 0x40, 0xb0, 0x00,
+  0x40, 0x44, 0xc4, 0x45, 0xa0, 0x4c, 0x40, 0x99, 0x17, 0x60, 0x02, 0x37,
+  0x5e, 0xd2, 0x15, 0x5f, 0x98, 0x99, 0xd9, 0x13, 0xc0, 0xa2, 0x86, 0xb4,
+  0xdf, 0xed, 0x22, 0x8d, 0x88, 0x00, 0x10, 0x5a, 0xff, 0xe1, 0xc7, 0xe4,
+  0x83, 0xe1, 0x8b, 0xc6, 0xd0, 0x5c, 0xde, 0x48, 0x94, 0x07, 0x72, 0x5f,
+  0xf3, 0xa1, 0xf9, 0xdb, 0xe7, 0x93, 0x17, 0xc1, 0xa6, 0x80, 0x93, 0xa4,
+  0x5f, 0x9c, 0x92, 0xe5, 0x13, 0xbc, 0x71, 0x2f, 0x0a, 0x00, 0x02, 0x08,
+  0x02, 0xac, 0xcd, 0x5a, 0x09, 0xba, 0xb3, 0xec, 0x12, 0x45, 0x77, 0x27,
+  0x81, 0x26, 0x28, 0x40, 0xeb, 0x3c, 0x19, 0x40, 0x3f, 0xb7, 0x2d, 0x4a,
+  0xe8, 0x1e, 0xa4, 0x0d, 0x40, 0x3a, 0x4f, 0x6c, 0xab, 0xd4, 0xcf, 0x01,
+  0x68, 0xb9, 0x47, 0x42, 0xcb, 0x9d, 0x15, 0x39, 0x80, 0xc9, 0x93, 0xa1,
+  0xf9, 0x7e, 0x2e, 0x15, 0x51, 0x15, 0xa6, 0xe5, 0x41, 0x8f, 0x44, 0x42,
+  0xb3, 0x01, 0x4a, 0x68, 0x0e, 0xcd, 0xf7, 0x73, 0x9a, 0x6a, 0xa6, 0x30,
+  0xd2, 0x59, 0xae, 0xd5, 0x00, 0xd9, 0x79, 0x32, 0x34, 0xd7, 0x72, 0x96,
+  0x47, 0x42, 0x52, 0x4d, 0x52, 0x4d, 0x4b, 0x09, 0x8c, 0x4a, 0x57, 0x9e,
+  0xc0, 0xdc, 0x1d, 0x80, 0x66, 0xd0, 0xa1, 0x09, 0x28, 0x48, 0x24, 0x84,
+  0x2c, 0xf7, 0x65, 0x34, 0x09, 0x21, 0x13, 0x4e, 0x53, 0x29, 0xb1, 0x9e,
+  0x97, 0x39, 0x01, 0x48, 0x01, 0x61, 0x00, 0xe9, 0xee, 0xed, 0x56, 0x8d,
+  0x4a, 0x90, 0x10, 0xa7, 0x81, 0x66, 0x6b, 0x6e, 0xe2, 0xb4, 0x0e, 0x6d,
+  0x01, 0x50, 0xba, 0xaf, 0xc0, 0x95, 0x66, 0x20, 0x08, 0x67, 0x39, 0x28,
+  0xc7, 0x3c, 0xfd, 0x19, 0x35, 0x4c, 0x4d, 0xb2, 0xa9, 0x01, 0x53, 0x24,
+  0xd4, 0x24, 0x05, 0x24, 0xf9, 0xc0, 0xbf, 0x83, 0x5c, 0x64, 0xcf, 0xdd,
+  0xcf, 0x8c, 0xb9, 0xe6, 0xbf, 0xca, 0xf7, 0xb9, 0xbe, 0xdc, 0x1f, 0xd6,
+  0x75, 0xa9, 0xa6, 0x49, 0x4d, 0x5e, 0x57, 0x00, 0x40, 0x57, 0xc2, 0x29,
+  0xa1, 0x47, 0xed, 0xc6, 0x94, 0x9d, 0x7d, 0x5d, 0xc5, 0xcd, 0xde, 0xab,
+  0xb6, 0xd8, 0xa9, 0xfd, 0x86, 0x5d, 0x11, 0x01, 0x40, 0xcd, 0xed, 0xf4,
+  0xce, 0x2a, 0xba, 0xec, 0x6a, 0xd7, 0x45, 0x71, 0xcc, 0x4a, 0x00, 0x28,
+  0x0a, 0x80, 0x0c, 0x93, 0x52, 0x6c, 0x96, 0xae, 0xc2, 0xa5, 0x00, 0xa2,
+  0x25, 0x6d, 0x0d, 0x82, 0x06, 0x68, 0x16, 0x10, 0x9a, 0x9a, 0x88, 0x82,
+  0xa6, 0x76, 0xfa, 0xa5, 0x2e, 0x09, 0x87, 0x4a, 0xc5, 0x4a, 0x80, 0x99,
+  0x9a, 0xba, 0x12, 0x91, 0xa4, 0x76, 0x8c, 0xba, 0x09, 0xc5, 0xa9, 0x92,
+  0x06, 0x03, 0xcf, 0x01, 0xd9, 0x12, 0x98, 0x38, 0x55, 0x6a, 0x01, 0x4f,
+  0x55, 0xa2, 0x32, 0xb5, 0x99, 0xd5, 0x2a, 0x69, 0x26, 0xd0, 0x02, 0xde,
+  0x19, 0x2d, 0x4c, 0xb0, 0x7b, 0x76, 0x8e, 0x77, 0x3a, 0x6f, 0xb4, 0xf2,
+  0x0d, 0xe9, 0xc6, 0xad, 0xb9, 0xda, 0xf4, 0x14, 0x9c, 0xbe, 0x67, 0xc6,
+  0x73, 0x4e, 0x29, 0x93, 0xcc, 0x01, 0xe4, 0x05, 0xe0, 0xdb, 0x2d, 0xc2,
+  0xa6, 0xc6, 0x29, 0x61, 0xab, 0x24, 0x91, 0x3f, 0x22, 0x5f, 0xef, 0x08,
+  0x94, 0x4c, 0x6a, 0x02, 0xd4, 0xa4, 0xe6, 0x43, 0xe9, 0xbe, 0x4d, 0xef,
+  0x7f, 0x3a, 0x0e, 0x39, 0xba, 0xb3, 0xf7, 0xb1, 0x8b, 0x2d, 0xfd, 0xd4,
+  0xa2, 0x1e, 0x15, 0x5b, 0xf7, 0xf4, 0x01, 0x58, 0xff, 0xb0, 0xe6, 0x52,
+  0x5c, 0x3d, 0xe2, 0xec, 0x19, 0xd0, 0xea, 0x38, 0x09, 0x6b, 0x3d, 0x94,
+  0x58, 0x8b, 0x62, 0xf7, 0x83, 0x69, 0x03, 0x4c, 0xb0, 0x37, 0x0c, 0x10,
+  0xa6, 0x5a, 0x2f, 0xf4, 0xae, 0x64, 0x50, 0xb0, 0xb0, 0x38, 0x88, 0x7d,
+  0x33, 0xb5, 0x27, 0x3c, 0xb5, 0x2b, 0x9f, 0x04, 0xe9, 0x6d, 0xad, 0xda,
+  0x74, 0x9c, 0x01, 0x24, 0x9c, 0x4e, 0x27, 0x84, 0x4e, 0x76, 0x4a, 0x1b,
+  0xbb, 0x75, 0x69, 0xd7, 0xd9, 0xde, 0xb5, 0xf5, 0x0e, 0x46, 0x89, 0x01,
+  0x28, 0x49, 0x46, 0x02, 0x10, 0xea, 0x08, 0xb0, 0x8c, 0xe5, 0x19, 0x4d,
+  0x9d, 0xbd, 0x59, 0x1b, 0x0c, 0x05, 0xd9, 0xfc, 0x0e, 0xe6, 0x08, 0xd0,
+  0x1d, 0x87, 0x01, 0x00, 0x70, 0x77, 0x77, 0x87, 0x82, 0xac, 0x55, 0x41,
+  0x29, 0x23, 0xe0, 0x08, 0xc0, 0x0e, 0x87, 0x01, 0x02, 0x81, 0x92, 0x5e,
+  0xab, 0xc4, 0xb6, 0x1f, 0x1e, 0x0a, 0xc4, 0xb2, 0xe1, 0x04, 0xa4, 0x7a,
+  0x0d, 0xab, 0x97, 0x26, 0x79, 0xf1, 0x9d, 0xd7, 0x26, 0x76, 0x01, 0xba,
+  0x26, 0x74, 0xe0, 0xcb, 0x05, 0x86, 0x38, 0x13, 0xe4, 0x00, 0x2c, 0x1b,
+  0x00, 0x19, 0x80, 0xb8, 0xd9, 0x63, 0xc9, 0x9c, 0x48, 0x7f, 0x15, 0xdd,
+  0xf1, 0x3e, 0xbd, 0x24, 0x5f, 0x04, 0x0c, 0x68, 0x95, 0xd3, 0xb1, 0xc0,
+  0xba, 0xbe, 0x82, 0xf5, 0x03, 0xc0, 0x2a, 0xa7, 0xcc, 0x8f, 0x00, 0x57,
+  0x5d, 0x99, 0x52, 0xf1, 0x1a, 0x40, 0xb9, 0xdb, 0x74, 0xfe, 0x04, 0x70,
+  0xd4, 0xc6, 0xb2, 0x01, 0x74, 0x33, 0x69, 0x00, 0xd7, 0xde, 0x6f, 0xae,
+  0xdb, 0x06, 0xd9, 0x1f, 0x4d, 0x9d, 0x9b, 0x3f, 0x03, 0x6c, 0x22, 0xd4,
+  0x00, 0xea, 0xc7, 0x80, 0x63, 0x38, 0x73, 0x01, 0xca, 0x2e, 0x95, 0xdc,
+  0x59, 0xee, 0x57, 0x3e, 0x1c, 0x05, 0x79, 0xdc, 0xba, 0x32, 0xf5, 0xb9,
+  0xd1, 0xba, 0xea, 0xed, 0xe9, 0xd6, 0x36, 0xfe, 0x63, 0xc0, 0xaa, 0x83,
+  0x6b, 0xfd, 0x0b, 0x80, 0xfe, 0xd4, 0xc0, 0xec, 0x0a, 0xc4, 0x6d, 0xed,
+  0x10, 0x1e, 0x36, 0x3b, 0xa7, 0x4a, 0xaf, 0x91, 0xf5, 0xb1, 0x0b, 0xdd,
+  0x18, 0xfe, 0x66, 0xd8, 0xfb, 0x57, 0x3f, 0x07, 0x8c, 0x05, 0x1f, 0x02,
+  0x82, 0x13, 0xe2, 0xaf, 0x02, 0xe0, 0x1b, 0xf0, 0x7b, 0x00, 0xd6, 0xde,
+  0xef, 0x65, 0x80, 0xae, 0xae, 0xfd, 0x32, 0x80, 0xa9, 0x7c, 0xd8, 0x7e,
+  0x7c, 0x08, 0xe8, 0xcf, 0xbf, 0x97, 0x01, 0xfd, 0xbd, 0x78, 0x9e, 0x07,
+  0xfc, 0x7b, 0x00, 0x3e, 0x19, 0xff, 0x31, 0xe0, 0xf3, 0x8d, 0xfe, 0xc5,
+  0x38, 0xdc, 0x8f, 0xf4, 0x6d, 0x2e, 0xdd, 0x66, 0xeb, 0xef, 0x99, 0xd3,
+  0x73, 0x36, 0xf6, 0x32, 0x60, 0xce, 0x93, 0x5e, 0x07, 0xac, 0xd3, 0x9f,
+  0x97, 0xfb, 0xc3, 0x9c, 0x6b, 0xdc, 0x00, 0xf4, 0x97, 0xe2, 0x0d, 0x40,
+  0x9f, 0x59, 0xde, 0x01, 0x88, 0xe1, 0x5d, 0x37, 0xfd, 0x29, 0xe0, 0x7b,
+  0x7c, 0x8f, 0xaf, 0x19, 0x77, 0x3f, 0xb6, 0xf6, 0x3f, 0x15, 0x5e, 0x1c,
+  0xca, 0x9b, 0x04, 0x27, 0x70, 0xeb, 0xc0, 0x63, 0x8e, 0x1d, 0x3e, 0x0f,
+  0xb0, 0x56, 0xfe, 0x99, 0x77, 0x00, 0x7f, 0xdc, 0x05, 0xfc, 0xf5, 0xe9,
+  0x12, 0x6e, 0x01, 0x3e, 0xdf, 0xad, 0xb7, 0x23, 0x7d, 0x9f, 0x4b, 0xb7,
+  0xd9, 0x7a, 0x3f, 0x1f, 0xbe, 0xc7, 0xff, 0x75, 0xfc, 0x0d, 0x3b, 0xd4,
+  0xd5, 0x4b, 0x3b, 0xfe, 0xb6, 0x75, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45,
+  0x4e, 0x44, 0xae, 0x42, 0x60, 0x82
 };
 
 const u32 TEXTURE_ATLAS_LENGTH = (u32)std::size(TEXTURE_ATLAS);
-const vec2 TEXTURE_ATLAS_SIZE = {96, 120};
+const vec2 TEXTURE_ATLAS_SIZE = {96, 160};
 
 enum AtlasType
 {
@@ -118,8 +125,8 @@ enum AtlasType
   ATLAS_INVISIBLE,
   ATLAS_SHOW_RECT,
   ATLAS_HIDE_RECT,
-  ATLAS_SHOW_TARGETS,
-  ATLAS_HIDE_TARGETS,
+  ATLAS_SHOW_UNUSED,
+  ATLAS_HIDE_UNUSED,
   ATLAS_PAN,
   ATLAS_MOVE,
   ATLAS_ROTATE,
@@ -145,6 +152,7 @@ enum AtlasType
   ATLAS_FRAME,
   ATLAS_FRAME_ALT,
   ATLAS_TARGET,
+  ATLAS_TARGET_ALT,
   ATLAS_COUNT
 };
 
@@ -197,7 +205,8 @@ const inline AtlasEntry ATLAS_ENTRIES[ATLAS_COUNT] =
   {{ 0,  80}, ATLAS_SIZE_OBLONG},
   {{16,  80}, ATLAS_SIZE_OBLONG},
   {{32,  80}, ATLAS_SIZE_OBLONG},
-  {{48,  80}, ATLAS_SIZE_BIG}
+  {{48,  80}, ATLAS_SIZE_BIG},
+  {{48, 120}, ATLAS_SIZE_BIG}
 };
 
 #define ATLAS_POSITION(type) ATLAS_ENTRIES[type].position
@@ -217,6 +226,7 @@ enum ShaderType
 {
     SHADER_LINE,
     SHADER_TEXTURE,
+    SHADER_AXIS,
     SHADER_GRID,
     SHADER_COUNT
 };
@@ -234,6 +244,33 @@ void main()
 }
 )";
 
+const std::string SHADER_AXIS_VERTEX = R"(
+#version 330 core
+layout (location = 0) in vec2 i_position; // full screen line segment: -1..1
+uniform vec2 u_origin_ndc; // world origin in NDC
+uniform int u_axis;       // 0 = X axis, 1 = Y axis
+
+void main()
+{
+    vec2 pos = (u_axis == 0) 
+        ? vec2(i_position.x, u_origin_ndc.y) // horizontal line across screen
+        : vec2(u_origin_ndc.x, i_position.x); // vertical line across screen;
+
+    gl_Position = vec4(pos, 0.0, 1.0);
+}
+)";
+
+const std::string SHADER_GRID_VERTEX = R"(
+#version 330 core
+layout ( location = 0 ) in vec2 i_position;
+out vec2 clip;
+
+void main() {
+    clip = i_position;
+    gl_Position = vec4(i_position, 0.0, 1.0);
+}
+)";
+
 const std::string SHADER_FRAGMENT = R"(
 #version 330 core
 out vec4 o_fragColor;
@@ -260,17 +297,6 @@ void main()
 }
 )";
 
-const std::string SHADER_GRID_VERTEX = R"(
-#version 330 core
-layout ( location = 0 ) in vec2 i_position;
-out vec2 clip;
-
-void main() {
-    clip = i_position;
-    gl_Position = vec4(i_position, 0.0, 1.0);
-}
-)";
-
 const std::string SHADER_GRID_FRAGMENT = R"(
 #version 330 core
 in vec2 clip;
@@ -301,12 +327,13 @@ void main()
 }
 )";
 
-
+#define SHADER_UNIFORM_AXIS "u_axis"
 #define SHADER_UNIFORM_COLOR "u_color"
 #define SHADER_UNIFORM_TRANSFORM "u_transform"
 #define SHADER_UNIFORM_TINT "u_tint"
 #define SHADER_UNIFORM_COLOR_OFFSET "u_color_offset"
 #define SHADER_UNIFORM_OFFSET "u_offset"
+#define SHADER_UNIFORM_ORIGIN_NDC "u_origin_ndc"
 #define SHADER_UNIFORM_SIZE "u_size"
 #define SHADER_UNIFORM_MODEL "u_model"
 #define SHADER_UNIFORM_TEXTURE "u_texture"
@@ -315,5 +342,6 @@ const ShaderData SHADER_DATA[SHADER_COUNT] =
 {
   {SHADER_VERTEX, SHADER_FRAGMENT},
   {SHADER_VERTEX, SHADER_TEXTURE_FRAGMENT},
+  {SHADER_AXIS_VERTEX, SHADER_FRAGMENT},
   {SHADER_GRID_VERTEX, SHADER_GRID_FRAGMENT}
-};
+};

src/anm2.h

@@ -13,7 +13,11 @@
 #define ANM2_FRAME_DELAY_MIN 1
 #define ANM2_STRING_MAX 0xFF
 
+#define ANM2_EMPTY_ERROR "No path given for anm2"
 #define ANM2_READ_ERROR "Failed to read anm2 from file: {}"
+#define ANM2_PARSE_ERROR "Failed to parse anm2: {} ({})"
+#define ANM2_FRAME_PARSE_ERROR "Failed to parse frame: {} ({})"
+#define ANM2_ANIMATION_PARSE_ERROR "Failed to parse frame: {} ({})"
 #define ANM2_READ_INFO "Read anm2 from file: {}"
 #define ANM2_WRITE_ERROR "Failed to write anm2 to file: {}"
 #define ANM2_WRITE_INFO "Wrote anm2 to file: {}"
@@ -22,7 +26,6 @@
 #define ANM2_EXTENSION "anm2"
 #define ANM2_SPRITESHEET_EXTENSION "png"
 
-/* Elements */
 #define ANM2_ELEMENT_LIST \
     X(ANIMATED_ACTOR,     "AnimatedActor")     \
     X(INFO,               "Info")              \
@@ -46,21 +49,22 @@
     X(TRIGGERS,           "Triggers")          \
     X(TRIGGER,            "Trigger")
 
-typedef enum {
+typedef enum 
+{
     #define X(name, str) ANM2_ELEMENT_##name,
     ANM2_ELEMENT_LIST
     #undef X
     ANM2_ELEMENT_COUNT
 } Anm2Element;
 
-static const char* ANM2_ELEMENT_STRINGS[] = {
+const inline char* ANM2_ELEMENT_STRINGS[] = 
+{
     #define X(name, str) str,
     ANM2_ELEMENT_LIST
     #undef X
 };
 
 DEFINE_STRING_TO_ENUM_FUNCTION(ANM2_ELEMENT_STRING_TO_ENUM, Anm2Element, ANM2_ELEMENT_STRINGS, ANM2_ELEMENT_COUNT)
-DEFINE_ENUM_TO_STRING_FUNCTION(ANM2_ELEMENT_ENUM_TO_STRING, ANM2_ELEMENT_STRINGS, ANM2_ELEMENT_COUNT)
 
 #define ANM2_ATTRIBUTE_LIST \
     X(CREATED_BY,        "CreatedBy")        \
@@ -101,21 +105,22 @@ DEFINE_ENUM_TO_STRING_FUNCTION(ANM2_ELEMENT_ENUM_TO_STRING, ANM2_ELEMENT_STRINGS
     X(EVENT_ID,          "EventId")          \
     X(AT_FRAME,          "AtFrame")
 
-typedef enum {
+typedef enum 
+{
     #define X(name, str) ANM2_ATTRIBUTE_##name,
     ANM2_ATTRIBUTE_LIST
     #undef X
     ANM2_ATTRIBUTE_COUNT
 } Anm2Attribute;
 
-static const char* ANM2_ATTRIBUTE_STRINGS[] = {
+static const char* ANM2_ATTRIBUTE_STRINGS[] = 
+{
     #define X(name, str) str,
     ANM2_ATTRIBUTE_LIST
     #undef X
 };
 
 DEFINE_STRING_TO_ENUM_FUNCTION(ANM2_ATTRIBUTE_STRING_TO_ENUM, Anm2Attribute, ANM2_ATTRIBUTE_STRINGS, ANM2_ATTRIBUTE_COUNT)
-DEFINE_ENUM_TO_STRING_FUNCTION(ANM2_ATTRIBUTE_ENUM_TO_STRING, ANM2_ATTRIBUTE_STRINGS, ANM2_ATTRIBUTE_COUNT)
 
 enum Anm2Type
 {
@@ -132,23 +137,31 @@ struct Anm2Spritesheet
     std::string path{};
     Texture texture;
     std::vector<u8> pixels; 
+
+    auto operator<=>(const Anm2Spritesheet&) const = default;
 };
 
 struct Anm2Layer
 {
     std::string name = "New Layer";
-	s32 spritesheetID = ID_NONE;
+	s32 spritesheetID{};
+
+    auto operator<=>(const Anm2Layer&) const = default;
 };
 
 struct Anm2Null
 {
     std::string name = "New Null";   
     bool isShowRect = false;
+
+    auto operator<=>(const Anm2Null&) const = default;
 };
 
 struct Anm2Event
 {
     std::string name = "New Event";
+
+    auto operator<=>(const Anm2Event&) const = default;
 };
 
 struct Anm2Frame
@@ -166,6 +179,57 @@ struct Anm2Frame
 	vec2 scale = {100, 100};
 	vec3 offsetRGB = COLOR_OFFSET_NONE;
 	vec4 tintRGBA = COLOR_OPAQUE;
+
+    auto operator<=>(const Anm2Frame&) const = default;
+};
+
+struct Anm2Item
+{
+    bool isVisible = true;
+	std::vector<Anm2Frame> frames;
+
+    auto operator<=>(const Anm2Item&) const = default;
+};
+
+struct Anm2Animation
+{
+	s32 frameNum = ANM2_FRAME_NUM_MIN;
+    std::string name = "New Animation";
+	bool isLoop = true;
+    Anm2Item rootAnimation;
+    std::unordered_map<s32, Anm2Item> layerAnimations;
+    std::vector<s32> layerOrder;
+    std::map<s32, Anm2Item> nullAnimations;
+    Anm2Item triggers;
+    
+    auto operator<=>(const Anm2Animation&) const = default;
+};
+
+struct Anm2 
+{
+    std::string path{};
+    std::string createdBy = "robot";
+    std::string createdOn{};
+	std::map<s32, Anm2Spritesheet> spritesheets; 
+	std::map<s32, Anm2Layer> layers; 
+	std::map<s32, Anm2Null> nulls; 
+    std::map<s32, Anm2Event> events;
+	std::map<s32, Anm2Animation> animations; 
+    s32 defaultAnimationID = ID_NONE;
+    s32 fps = ANM2_FPS_DEFAULT;
+	s32 version{};
+
+    auto operator<=>(const Anm2&) const = default;
+};
+
+struct Anm2Reference
+{
+    s32 animationID = ID_NONE;
+    Anm2Type itemType = ANM2_NONE;
+    s32 itemID = ID_NONE;
+    s32 frameIndex = INDEX_NONE;
+    f32 time = VALUE_NONE;
+    auto operator<=>(const Anm2Reference&) const = default; 
 };
 
 struct Anm2FrameChange
@@ -183,66 +247,6 @@ struct Anm2FrameChange
     std::optional<vec4> tintRGBA;
 };
 
-struct Anm2Item
-{
-    bool isVisible = true;
-	std::vector<Anm2Frame> frames;
-};
-
-struct Anm2Animation
-{
-	s32 frameNum = ANM2_FRAME_NUM_MIN;
-    std::string name = "New Animation";
-	bool isLoop = true;
-    Anm2Item rootAnimation;
-    std::map<s32, Anm2Item> layerAnimations;
-    std::map<s32, Anm2Item> nullAnimations;
-    Anm2Item triggers;
-};
-
-struct Anm2 
-{
-    std::string path{};
-    std::string createdBy = "robot";
-    std::string createdOn{};
-	std::map<s32, Anm2Spritesheet> spritesheets; 
-	std::map<s32, Anm2Layer> layers; 
-	std::map<s32, Anm2Null> nulls; 
-    std::map<s32, Anm2Event> events;
-	std::map<s32, Anm2Animation> animations; 
-    std::map<s32, s32> layerMap; // index, id
-    s32 defaultAnimationID{};
-    s32 fps = ANM2_FPS_DEFAULT;
-	s32 version{};
-};
-
-struct Anm2Reference
-{
-    s32 animationID = ID_NONE;
-    Anm2Type itemType = ANM2_NONE;
-    s32 itemID = ID_NONE;
-    s32 frameIndex = INDEX_NONE;
-    auto operator<=>(const Anm2Reference&) const = default; 
-};
-
-struct Anm2AnimationWithID
-{
-    s32 id;
-    Anm2Animation animation;
-};
-
-struct Anm2EventWithID
-{
-    s32 id;
-    Anm2Event event;
-};
-
-struct Anm2FrameWithReference
-{
-    Anm2Reference reference;
-    Anm2Frame frame;
-};
-
 enum Anm2MergeType
 {
     ANM2_MERGE_APPEND_FRAMES,
@@ -258,33 +262,48 @@ enum Anm2ChangeType
     ANM2_CHANGE_SET
 };
 
-void anm2_layer_add(Anm2* self);
-void anm2_layer_remove(Anm2* self, s32 id);
-void anm2_null_add(Anm2* self);
-void anm2_null_remove(Anm2* self, s32 id);
-bool anm2_serialize(Anm2* self, const std::string& path);
-bool anm2_deserialize(Anm2* self, const std::string& path);
-void anm2_new(Anm2* self);
-void anm2_free(Anm2* self);
-void anm2_created_on_set(Anm2* self);
-s32 anm2_animation_add(Anm2* self);
-void anm2_animation_remove(Anm2* self, s32 id);
+enum OnionskinDrawOrder 
+{
+    ONIONSKIN_BELOW,
+    ONIONSKIN_ABOVE
+};
+
 Anm2Animation* anm2_animation_from_reference(Anm2* self, Anm2Reference* reference);
-Anm2Item* anm2_item_from_reference(Anm2* self, Anm2Reference* reference);
+Anm2Frame* anm2_frame_add(Anm2* self, Anm2Frame* frame, Anm2Reference* reference);
 Anm2Frame* anm2_frame_from_reference(Anm2* self, Anm2Reference* reference);
-s32 anm2_frame_index_from_time(Anm2* self, Anm2Reference reference, f32 time);
-Anm2Frame* anm2_frame_add(Anm2* self, Anm2Frame* frame, Anm2Reference* reference, s32 time = 0.0f);
-void anm2_frame_erase(Anm2* self, Anm2Reference* reference);
-void anm2_frame_from_time(Anm2* self, Anm2Frame* frame, Anm2Reference reference, f32 time);
-void anm2_reference_clear(Anm2Reference* self);
-void anm2_reference_item_clear(Anm2Reference* self);
-void anm2_reference_frame_clear(Anm2Reference* self);
+Anm2Item* anm2_item_from_reference(Anm2* self, Anm2Reference* reference);
+bool anm2_animation_deserialize_from_xml(Anm2Animation* animation, const std::string& xml);
+bool anm2_deserialize(Anm2* self, const std::string& path, bool isTextures = true);
+bool anm2_frame_deserialize_from_xml(Anm2Frame* frame, const std::string& xml);
+bool anm2_serialize(Anm2* self, const std::string& path);
+s32 anm2_animation_add(Anm2* self, Anm2Animation* animation = nullptr, s32 id = ID_NONE);
 s32 anm2_animation_length_get(Anm2Animation* self);
+s32 anm2_frame_index_from_time(Anm2* self, Anm2Reference reference, f32 time);
+s32 anm2_layer_add(Anm2* self);
+s32 anm2_null_add(Anm2* self);
+vec4 anm2_animation_rect_get(Anm2* anm2, Anm2Reference* reference, bool isRootTransform);
+void anm2_animation_layer_animation_add(Anm2Animation* animation, s32 id);
+void anm2_animation_layer_animation_remove(Anm2Animation* animation, s32 id);
 void anm2_animation_length_set(Anm2Animation* self);
 void anm2_animation_merge(Anm2* self, s32 animationID, const std::vector<s32>& mergeIDs, Anm2MergeType type);
+void anm2_animation_null_animation_add(Anm2Animation* animation, s32 id);
+void anm2_animation_null_animation_remove(Anm2Animation* animation, s32 id);
+void anm2_animation_remove(Anm2* self, s32 id);
+void anm2_animation_serialize_to_string(Anm2Animation* animation, std::string* string);
+void anm2_created_on_set(Anm2* self);
 void anm2_frame_bake(Anm2* self, Anm2Reference* reference, s32 interval, bool isRoundScale, bool isRoundRotation);
-void anm2_item_frame_set(Anm2* self, Anm2Reference* reference, const Anm2FrameChange& change, Anm2ChangeType type, s32 start, s32 count);
-void anm2_scale(Anm2* self, f32 scale);
+void anm2_frame_from_time(Anm2* self, Anm2Frame* frame, Anm2Reference reference, f32 time);
+void anm2_frame_remove(Anm2* self, Anm2Reference* reference);
+void anm2_frame_serialize_to_string(Anm2Frame* frame, Anm2Type type, std::string* string);
+void anm2_free(Anm2* self);
 void anm2_generate_from_grid(Anm2* self, Anm2Reference* reference, vec2 startPosition, vec2 size, vec2 pivot, s32 columns, s32 count, s32 delay);
-void anm2_spritesheet_texture_pixels_upload(Anm2* self);
-void anm2_spritesheet_texture_pixels_download(Anm2* self);
+void anm2_item_frame_set(Anm2* self, Anm2Reference* reference, const Anm2FrameChange& change, Anm2ChangeType type, s32 start, s32 count);
+void anm2_layer_remove(Anm2* self, s32 id);
+void anm2_new(Anm2* self);
+void anm2_null_remove(Anm2* self, s32 id);
+void anm2_reference_clear(Anm2Reference* self);
+void anm2_reference_frame_clear(Anm2Reference* self);
+void anm2_reference_item_clear(Anm2Reference* self);
+void anm2_scale(Anm2* self, f32 scale);
+void anm2_spritesheet_texture_pixels_download(Anm2* self);
+void anm2_spritesheet_texture_pixels_upload(Anm2* self);

src/canvas.cpp

@@ -33,7 +33,7 @@ void canvas_init(Canvas* self, const ivec2& size)
     glBufferData(GL_ARRAY_BUFFER, sizeof(CANVAS_AXIS_VERTICES), CANVAS_AXIS_VERTICES, GL_STATIC_DRAW);
  
     glEnableVertexAttribArray(0);
-    glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(f32), (void*)0);
+    glVertexAttribPointer(0, 1, GL_FLOAT, GL_FALSE, sizeof(f32), (void*)0);
     
     // Grid
     glGenVertexArrays(1, &self->gridVAO);
@@ -96,6 +96,8 @@ void canvas_init(Canvas* self, const ivec2& size)
     glGenFramebuffers(1, &self->fbo);
     glGenRenderbuffers(1, &self->rbo);
     _canvas_framebuffer_set(self, size);
+
+    self->isInit = true;
 }
 
 mat4 canvas_transform_get(Canvas* self, vec2 pan, f32 zoom, OriginType origin)
@@ -195,13 +197,20 @@ void canvas_rect_draw(Canvas* self, const GLuint& shader, const mat4& transform,
     glUseProgram(0);
 }
 
+
 void canvas_axes_draw(Canvas* self, GLuint& shader, mat4& transform, vec4& color)
 {
+    vec4 originNDC = transform * vec4(0.0f, 0.0f, 0.0f, 1.0f);
+    originNDC /= originNDC.w;
+
     glUseProgram(shader);
     glBindVertexArray(self->axisVAO);
-    glUniformMatrix4fv(glGetUniformLocation(shader, SHADER_UNIFORM_TRANSFORM), 1, GL_FALSE, value_ptr(transform));
-    glUniform4f(glGetUniformLocation(shader, SHADER_UNIFORM_COLOR), color.r, color.g, color.b, color.a);
-    glDrawArrays(GL_LINES, 0, 4);
+    glUniform4fv(glGetUniformLocation(shader, SHADER_UNIFORM_COLOR), 1, value_ptr(color));
+    glUniform2f(glGetUniformLocation(shader, SHADER_UNIFORM_ORIGIN_NDC), originNDC.x, originNDC.y);
+    glUniform1i(glGetUniformLocation(shader, SHADER_UNIFORM_AXIS), 0);
+    glDrawArrays(GL_LINES, 0, 2);
+    glUniform1i(glGetUniformLocation(shader, SHADER_UNIFORM_AXIS), 1);
+    glDrawArrays(GL_LINES, 0, 2);
     glBindVertexArray(0);
     glUseProgram(0);
 }
@@ -218,6 +227,8 @@ void canvas_unbind(void)
 
 void canvas_free(Canvas* self)
 {
+    if (!self->isInit) return;
+
     glDeleteFramebuffers(1, &self->fbo);
     glDeleteRenderbuffers(1, &self->rbo);
     glDeleteTextures(1, &self->framebuffer);
@@ -230,37 +241,4 @@ void canvas_free(Canvas* self)
     glDeleteBuffers(1, &self->gridVBO);
     glDeleteBuffers(1, &self->textureVBO);
     glDeleteBuffers(1, &self->textureEBO);
-}
-
-mat4 canvas_model_get(vec2 size, vec2 position, vec2 pivot, vec2 scale, f32 rotation)
-{
-    vec2 scaleAbsolute  = glm::abs(scale);
-    vec2 scaleSign = glm::sign(scale);
-    vec2 pivotScaled = pivot * scaleAbsolute;
-    vec2 sizeScaled  = size  * scaleAbsolute;
-
-    mat4 model(1.0f);
-    model = glm::translate(model, vec3(position - pivotScaled, 0.0f));
-    model = glm::translate(model, vec3(pivotScaled, 0.0f));
-    model = glm::scale(model, vec3(scaleSign, 1.0f));
-    model = glm::rotate(model, glm::radians(rotation), vec3(0, 0, 1));
-    model = glm::translate(model, vec3(-pivotScaled, 0.0f));
-    model = glm::scale(model, vec3(sizeScaled, 1.0f));
-    return model;
-}
-
-mat4 canvas_parent_model_get(vec2 position, vec2 pivot, vec2 scale, f32 rotation)
-{
-    vec2 scaleSign = glm::sign(scale);
-    vec2 scaleAbsolute  = glm::abs(scale);
-    f32 handedness = (scaleSign.x * scaleSign.y) < 0.0f ? -1.0f : 1.0f;
-
-    mat4 local(1.0f);
-    local = glm::translate(local, vec3(pivot, 0.0f));
-    local = glm::scale(local, vec3(scaleSign, 1.0f));
-    local = glm::rotate(local, glm::radians(rotation) * handedness, vec3(0, 0, 1));
-    local = glm::translate(local, vec3(-pivot, 0.0f));
-    local = glm::scale(local, vec3(scaleAbsolute, 1.0f));
-
-    return glm::translate(mat4(1.0f), vec3(position, 0.0f)) * local;
 }

src/canvas.h

@@ -5,23 +5,15 @@
 #define CANVAS_ZOOM_MIN 1.0f
 #define CANVAS_ZOOM_MAX 2000.0f
 #define CANVAS_ZOOM_DEFAULT 100.0f
-#define CANVAS_ZOOM_STEP 10.0f
-#define CANVAS_ZOOM_MOD 10.0f
+#define CANVAS_ZOOM_STEP 100.0f
 #define CANVAS_GRID_MIN 1
 #define CANVAS_GRID_MAX 1000
 #define CANVAS_GRID_DEFAULT 32
-#define CANVAS_LINE_LENGTH (FLT_MAX * 0.001f)
 
-const inline vec2 CANVAS_PIVOT_SIZE = {8, 8};
+const inline vec2 CANVAS_PIVOT_SIZE = {4, 4};
 const inline vec2 CANVAS_SCALE_DEFAULT = {1.0f, 1.0f};
 
-const inline f32 CANVAS_AXIS_VERTICES[] = 
-{
-    -CANVAS_LINE_LENGTH, 0.0f,
-    CANVAS_LINE_LENGTH, 0.0f,
-    0.0f, -CANVAS_LINE_LENGTH,
-    0.0f, CANVAS_LINE_LENGTH
-};
+const inline f32 CANVAS_AXIS_VERTICES[] = {-1.0f, 1.0f};
 
 const inline f32 CANVAS_GRID_VERTICES[] =
 {
@@ -62,6 +54,7 @@ struct Canvas
     GLuint textureEBO{};
     ivec2 size{};
     ivec2 previousSize{};
+    bool isInit = false;
 };
 
 #define UV_VERTICES(uvMin, uvMax) \
@@ -72,6 +65,11 @@ struct Canvas
   0, 1, uvMin.x, uvMax.y  \
 }
 
+#define ATLAS_UV_MIN(type) (ATLAS_POSITION(type) / TEXTURE_ATLAS_SIZE)
+#define ATLAS_UV_MAX(type) ((ATLAS_POSITION(type) + ATLAS_SIZE(type)) / TEXTURE_ATLAS_SIZE)
+#define ATLAS_UV_ARGS(type) ATLAS_UV_MIN(type), ATLAS_UV_MAX(type)
+#define ATLAS_UV_VERTICES(type) UV_VERTICES(ATLAS_UV_MIN(type), ATLAS_UV_MAX(type))
+
 mat4 canvas_transform_get(Canvas* self, vec2 pan, f32 zoom, OriginType origin);
 void canvas_axes_draw(Canvas* self, GLuint& shader, mat4& transform, vec4& color);
 void canvas_bind(Canvas* self);
@@ -84,8 +82,6 @@ void canvas_rect_draw(Canvas* self, const GLuint& shader, const mat4& transform,
 void canvas_framebuffer_resize_check(Canvas* self);
 void canvas_unbind(void);
 void canvas_viewport_set(Canvas* self);
-mat4 canvas_model_get(vec2 size = {}, vec2 position = {}, vec2 pivot = {}, vec2 scale = vec2(1.0f), f32 rotation = {});
-mat4 canvas_parent_model_get(vec2 position = {}, vec2 pivot = {}, vec2 scale = vec2(1.0f), f32 rotation = {});
 
 void canvas_texture_draw
 (

src/clipboard.cpp

@@ -1,97 +1,105 @@
 #include "clipboard.h"
 
-static void _clipboard_item_remove(ClipboardItem* self, Anm2* anm2)
-{
-    switch (self->type)
-    {
-        case CLIPBOARD_FRAME:
-        {
-            Anm2FrameWithReference* frameWithReference = std::get_if<Anm2FrameWithReference>(&self->data);
-            
-            if (!frameWithReference) break;
-
-            anm2_frame_erase(anm2, &frameWithReference->reference);
-            break;
-        }
-        case CLIPBOARD_ANIMATION:
-        {
-            Anm2AnimationWithID* animationWithID = std::get_if<Anm2AnimationWithID>(&self->data);
-
-            if (!animationWithID) break;
-
-            for (auto & [id, animation] : anm2->animations)
-            {
-                if (id == animationWithID->id)
-                {
-                    anm2->animations.erase(animationWithID->id);
-                    break;
-                }
-            }
-            break;
-        }
-        default:
-            break;
-    }
-}
-
-static void _clipboard_item_paste(ClipboardItem* self, ClipboardLocation* location, Anm2* anm2)
-{
-    switch (self->type)
-    {
-        case CLIPBOARD_FRAME:
-        {
-            Anm2FrameWithReference* frameWithReference = std::get_if<Anm2FrameWithReference>(&self->data);
-            Anm2Reference* reference = std::get_if<Anm2Reference>(location);
-            
-            if (!frameWithReference || !reference) break;
-            if (frameWithReference->reference.itemType != reference->itemType) break;
-
-            Anm2Animation* animation = anm2_animation_from_reference(anm2, reference);
-            Anm2Item* anm2Item = anm2_item_from_reference(anm2, reference);
- 
-            if (!animation || !anm2Item) break;
-
-            anm2_frame_add(anm2, &frameWithReference->frame, reference, reference->frameIndex); 
-
-            break;
-        }
-        case CLIPBOARD_ANIMATION:
-        {
-            Anm2AnimationWithID* animationWithID = std::get_if<Anm2AnimationWithID>(&self->data);
-           
-            if (!animationWithID) break;
-
-            s32 index = 0;
-            
-            if (std::holds_alternative<s32>(*location))
-                index = std::get<s32>(*location);
-            else
-                break;
-
-            index = std::clamp(index, 0, (s32)anm2->animations.size());
-
-            map_insert_shift(anm2->animations, index, animationWithID->animation);
-            break;
-        }
-        default:
-            break;
-    }
-}
-
 void clipboard_copy(Clipboard* self)
 {
-    self->item = self->hoveredItem;
+    std::string clipboardText{};
+    
+    auto clipboard_text_set = [&]()
+    {
+        if (!SDL_SetClipboardText(clipboardText.c_str()))
+            log_warning(std::format(CLIPBOARD_TEXT_SET_WARNING, SDL_GetError()));
+    };
+    
+    switch (self->type)
+    {
+        case CLIPBOARD_FRAME:
+        {
+            Anm2Reference* reference = std::get_if<Anm2Reference>(&self->location);
+            if (!reference) break;
+            Anm2Frame* frame = anm2_frame_from_reference(self->anm2, reference);
+            if (!frame) break;
+            anm2_frame_serialize_to_string(frame, reference->itemType, &clipboardText);
+            clipboard_text_set();
+            break;
+        }
+        case CLIPBOARD_ANIMATION:
+        {
+            s32* id = std::get_if<s32>(&self->location);
+            if (!id) break;
+            Anm2Animation* animation = map_find(self->anm2->animations, *id);
+            if (!animation) break;
+            anm2_animation_serialize_to_string(animation, &clipboardText);
+            clipboard_text_set();
+            break;
+        }
+            break;
+        default:
+            break;
+    }
 }
 
 void clipboard_cut(Clipboard* self)
 {
-    self->item = self->hoveredItem;
-    _clipboard_item_remove(&self->item, self->anm2);
+    clipboard_copy(self);
+
+    switch (self->type)
+    {
+        case CLIPBOARD_FRAME:
+        {
+            Anm2Reference* reference = std::get_if<Anm2Reference>(&self->location);
+            if (!reference) break;
+            anm2_frame_remove(self->anm2, reference);
+            break;
+        }
+        case CLIPBOARD_ANIMATION:
+        {
+            s32* id = std::get_if<s32>(&self->location);
+            if (!id) break;
+            anm2_animation_remove(self->anm2, *id);
+            break;
+        }
+        default:
+            break;
+    }
 }
 
-void clipboard_paste(Clipboard* self)
+bool clipboard_paste(Clipboard* self)
 {
-    _clipboard_item_paste(&self->item, &self->location, self->anm2);
+    auto clipboard_string = [&]()
+    {
+        char* clipboardText = SDL_GetClipboardText();
+        std::string clipboardString = std::string(clipboardText);
+        SDL_free(clipboardText);
+        return clipboardString;
+    };
+
+    switch (self->type)
+    {
+        case CLIPBOARD_FRAME:
+        {
+            Anm2Reference* reference = std::get_if<Anm2Reference>(&self->location);
+            if (!reference) break;
+            Anm2Frame frame;
+            if (anm2_frame_deserialize_from_xml(&frame, clipboard_string()))
+                anm2_frame_add(self->anm2, &frame, reference);
+            else return false;
+            break;
+        }
+        case CLIPBOARD_ANIMATION:
+        {
+            s32* id = std::get_if<s32>(&self->location);
+            if (!id) break;
+            Anm2Animation animation;
+             if (anm2_animation_deserialize_from_xml(&animation, clipboard_string()))
+                anm2_animation_add(self->anm2, &animation, *id);
+            else return false;
+            break;
+        }
+        default:
+            break;
+    }
+
+    return true;
 }
 
 void clipboard_init(Clipboard* self, Anm2* anm2)
@@ -99,3 +107,7 @@ void clipboard_init(Clipboard* self, Anm2* anm2)
     self->anm2 = anm2;
 }
 
+bool clipboard_is_value(void) 
+{
+    return SDL_HasClipboardText(); 
+}

src/clipboard.h

@@ -2,34 +2,26 @@
 
 #include "anm2.h"
 
-enum ClipboardItemType
+#define CLIPBOARD_TEXT_SET_WARNING "Unable to set clipboard text! ({})"
+
+enum ClipboardType
 {
     CLIPBOARD_NONE,
     CLIPBOARD_FRAME,
-    CLIPBOARD_ANIMATION,
+    CLIPBOARD_ANIMATION
 };
 
-struct ClipboardItem
-{
-    std::variant<std::monostate, Anm2FrameWithReference, Anm2AnimationWithID, Anm2EventWithID> data = std::monostate();
-    ClipboardItemType type = CLIPBOARD_NONE;
-
-    ClipboardItem() = default; 
-    ClipboardItem(const Anm2FrameWithReference& frame) : data(frame), type(CLIPBOARD_FRAME) {}
-    ClipboardItem(const Anm2AnimationWithID& animation) : data(animation), type(CLIPBOARD_ANIMATION) {}
-};
-    
 using ClipboardLocation = std::variant<std::monostate, Anm2Reference, s32>;
 
 struct Clipboard
 {
     Anm2* anm2 = nullptr;
-    ClipboardItem item;
-    ClipboardItem hoveredItem;
+    ClipboardType type;
     ClipboardLocation location;
 };
 
+bool clipboard_is_value(void);
 void clipboard_copy(Clipboard* self);
 void clipboard_cut(Clipboard* self);
-void clipboard_paste(Clipboard* self);
+bool clipboard_paste(Clipboard* self);
 void clipboard_init(Clipboard* self, Anm2* anm2);

src/editor.cpp

@@ -26,11 +26,11 @@ void editor_draw(Editor* self)
     canvas_viewport_set(&self->canvas);
     canvas_clear(self->settings->editorBackgroundColor);
 
-    if (self->spritesheetID != ID_NONE)
+    if (Anm2Spritesheet* spritesheet = map_find(self->anm2->spritesheets, self->spritesheetID))
     {
-        Texture& texture = self->anm2->spritesheets[self->spritesheetID].texture;
+        Texture& texture = spritesheet->texture;
         
-        mat4 spritesheetTransform = transform * canvas_model_get(texture.size);
+        mat4 spritesheetTransform = transform * quad_model_get(texture.size);
         canvas_texture_draw(&self->canvas, shaderTexture, texture.id, spritesheetTransform);
 
         if (self->settings->editorIsBorder)
@@ -40,10 +40,10 @@ void editor_draw(Editor* self)
     
         if (frame)
         {
-            mat4 cropTransform = transform * canvas_model_get(frame->size, frame->crop);
+            mat4 cropTransform = transform * quad_model_get(frame->size, frame->crop);
             canvas_rect_draw(&self->canvas, shaderLine, cropTransform, EDITOR_FRAME_COLOR);
 
-            mat4 pivotTransform = transform * canvas_model_get(CANVAS_PIVOT_SIZE, frame->crop + frame->pivot, CANVAS_PIVOT_SIZE * 0.5f);
+            mat4 pivotTransform = transform * quad_model_get(CANVAS_PIVOT_SIZE, frame->crop + frame->pivot, CANVAS_PIVOT_SIZE * 0.5f);
             f32 vertices[] = ATLAS_UV_VERTICES(ATLAS_PIVOT);
             canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, pivotTransform, vertices, EDITOR_PIVOT_COLOR);
         }

src/ffmpeg.cpp

@@ -1,10 +1,5 @@
 #include "ffmpeg.h"
 
-static std::string ffmpeg_log_path_get(void)
-{
-    return preferences_path_get() + FFMPEG_LOG_PATH;
-}
-
 bool 
 ffmpeg_render
 (
@@ -35,13 +30,8 @@ ffmpeg_render
             break;
     }
 
-    // ffmpeg output will be piped into the log
-    std::string logOutput = " 2>> \"" + ffmpeg_log_path_get() + "\"";
-
 #if _WIN32
-    command = string_quote(command) + logOutput;
-#else
-    command += logOutput;
+    command = string_quote(command);
 #endif
 
     log_command(command);
@@ -53,15 +43,9 @@ ffmpeg_render
         log_error(std::format(FFMPEG_POPEN_ERROR, strerror(errno)));
         return false;
     }
-
     
     size_t frameBytes = size.x * size.y * TEXTURE_CHANNELS;
 
-// supposedly, might help with video corruption issues on windows?
-#if _WIN32
-    _setmode(_fileno(stdout), _O_BINARY);
-#endif
-
     for (const auto& frame : frames) 
     {
         std::vector<u8> rgba = texture_download(&frame);

src/ffmpeg.h

@@ -4,8 +4,6 @@
 #include "texture.h"
 
 #define FFMPEG_POPEN_ERROR "popen() (for FFmpeg) failed!\n{}"
-#define FFMPEG_LOG_BUFFER_SIZE 256
-#define FFMPEG_LOG_PATH "ffmpeg.txt"
 
 static constexpr const char* FFMPEG_GIF_FORMAT =
 "\"{0}\" -y "

src/generate_preview.cpp

@@ -26,23 +26,28 @@ void generate_preview_draw(GeneratePreview* self)
     canvas_clear(self->settings->previewBackgroundColor);
  
     Anm2Item* item = anm2_item_from_reference(self->anm2, self->reference);
-    Texture& texture = self->anm2->spritesheets[self->anm2->layers[self->reference->itemID].spritesheetID].texture;
-        
-    if (item && !texture.isInvalid)
+
+    if (item)
     {
-        const s32 index = std::clamp((s32)(self->time * count), 0, count);
-        const s32 row = index / columns;
-        const s32 column = index % columns;
-        vec2 crop = startPosition + vec2(size.x * column, size.y * row);
+        if (Anm2Spritesheet* spritesheet = map_find(self->anm2->spritesheets, self->anm2->layers[self->reference->itemID].spritesheetID))
+        {
+            Texture& texture = spritesheet->texture;
 
-        vec2 uvMin = crop / vec2(texture.size);
-        vec2 uvMax = (crop + size) / vec2(texture.size);
-        f32 vertices[] = UV_VERTICES(uvMin, uvMax);
+            const s32 index = std::clamp((s32)(self->time * count), 0, count);
+            const s32 row = index / columns;
+            const s32 column = index % columns;
+            vec2 crop = startPosition + vec2(size.x * column, size.y * row);
 
-        mat4 generateTransform = transform * canvas_model_get(size, {}, pivot);
-        canvas_texture_draw(&self->canvas, shaderTexture, texture.id, generateTransform, vertices, COLOR_OPAQUE, COLOR_OFFSET_NONE);
+            vec2 textureSize = vec2(texture.size);
+            vec2 uvMin = (crop + vec2(0.5f)) / textureSize;
+            vec2 uvMax = (crop + size - vec2(0.5f)) / textureSize;
+            f32 vertices[] = UV_VERTICES(uvMin, uvMax);
+
+            mat4 generateTransform = transform * quad_model_get(size, {}, pivot);
+            canvas_texture_draw(&self->canvas, shaderTexture, texture.id, generateTransform, vertices, COLOR_OPAQUE, COLOR_OFFSET_NONE);
+        }
     }
-    
+           
     canvas_unbind();
 }
 

src/main.cpp

@@ -4,7 +4,7 @@ static bool _anm2_rescale(const std::string& file, f32 scale)
 {
 	Anm2 anm2;
 
-	if (!anm2_deserialize(&anm2, file)) return false;
+	if (!anm2_deserialize(&anm2, file, false)) return false;
 	anm2_scale(&anm2, scale);
 	return anm2_serialize(&anm2, file);
 }
@@ -35,9 +35,19 @@ main(s32 argc, char* argv[])
 			
 			return EXIT_FAILURE;
 		}
+		else if (std::string(argv[1]) == ARGUMENT_TEST && argv[2])
+		{
+			if (anm2_deserialize(&state.anm2, std::string(argv[2]), false)) return EXIT_SUCCESS;
+			return EXIT_FAILURE;
+		}
+		else if (std::string(argv[1]) == ARGUMENT_TEST_GL && argv[2])
+		{
+			if (!sdl_init(&state, true)) return EXIT_FAILURE;
+			if (anm2_deserialize(&state.anm2, std::string(argv[2]))) return EXIT_SUCCESS;
+			return EXIT_FAILURE;
+		}
 		else
-			if (argv[1])
-				state.argument = argv[1];
+			if (argv[1]) state.argument = argv[1];
 	}
 
 	init(&state);

src/main.h

@@ -1,5 +1,10 @@
 #pragma once
 
+#include <SDL3/SDL_main.h>
+
+#define ARGUMENT_TEST "--test"
+#define ARGUMENT_TEST_GL "--test-gl"
+
 #define ARGUMENT_RESCALE "--rescale"
 #define ARGUMENT_RESCALE_ARGUMENT_ERROR "--rescale: specify both anm2 and scale arguments" 
 #define ARGUMENT_RESCALE_ANM2_ERROR "Unable to rescale anm2 {} by value {}. Make sure the file is valid."

src/preview.cpp

@@ -40,7 +40,7 @@ void preview_tick(Preview* self)
                 glReadPixels(0, 0, size.x, size.y, GL_RGBA, GL_UNSIGNED_BYTE, framebufferPixels.data());
                 glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
 
-                texture_from_rgba_init(&frameTexture, size, TEXTURE_CHANNELS, framebufferPixels.data());
+                texture_from_rgba_init(&frameTexture, size, framebufferPixels.data());
                 self->renderFrames.push_back(frameTexture);
             }
 
@@ -81,6 +81,7 @@ void preview_draw(Preview* self)
     ivec2& gridOffset = self->settings->previewGridOffset;
     vec4& gridColor = self->settings->previewGridColor;
     GLuint& shaderLine = self->resources->shaders[SHADER_LINE];
+    GLuint& shaderAxis = self->resources->shaders[SHADER_AXIS];
     GLuint& shaderTexture = self->resources->shaders[SHADER_TEXTURE];
     GLuint& shaderGrid = self->resources->shaders[SHADER_GRID];
     mat4 transform = canvas_transform_get(&self->canvas, self->settings->previewPan, self->settings->previewZoom, ORIGIN_CENTER);
@@ -95,153 +96,142 @@ void preview_draw(Preview* self)
         canvas_grid_draw(&self->canvas, shaderGrid, transform, gridSize, gridOffset, gridColor);
 
     if (self->settings->previewIsAxes)
-        canvas_axes_draw(&self->canvas, shaderLine, transform, self->settings->previewAxesColor);
+        canvas_axes_draw(&self->canvas, shaderAxis, transform, self->settings->previewAxesColor);
 
-    Anm2Animation* animation = anm2_animation_from_reference(self->anm2, self->reference);
-    s32& animationID = self->reference->animationID;
-
-    if (animation)
+    auto animation_draw = [&](s32 animationID)
     {
-        Anm2Frame root;
-        mat4 rootModel = mat4(1.0f);
-        
-        anm2_frame_from_time(self->anm2, &root, Anm2Reference{animationID, ANM2_ROOT}, self->time);
+        Anm2Animation* animation = map_find(self->anm2->animations, animationID);
+        if (!animation) return;
 
-        if (self->settings->previewIsRootTransform)
-            rootModel = canvas_parent_model_get(root.position, {}, PERCENT_TO_UNIT(root.scale), root.rotation);
-
-        // Root
-        if (self->settings->previewIsTargets && animation->rootAnimation.isVisible && root.isVisible)
+        auto root_draw = [&](Anm2Frame root, vec3 colorOffset = {}, f32 alphaOffset = {}, bool isOnionskin = {})
         {
-            mat4 model = canvas_model_get(PREVIEW_TARGET_SIZE, root.position, PREVIEW_TARGET_SIZE * 0.5f, PERCENT_TO_UNIT(root.scale), root.rotation);
+            mat4 model = quad_model_get(PREVIEW_TARGET_SIZE, root.position, PREVIEW_TARGET_SIZE * 0.5f, PERCENT_TO_UNIT(root.scale), root.rotation);
             mat4 rootTransform = transform * model;
-            f32 vertices[] = ATLAS_UV_VERTICES(ATLAS_TARGET);
-            canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, rootTransform, vertices, PREVIEW_ROOT_COLOR);
-        }
+            vec4 color = isOnionskin ? vec4(colorOffset, 1.0f - alphaOffset) : PREVIEW_ROOT_COLOR;
+            AtlasType atlas = self->settings->previewIsAltIcons ? ATLAS_TARGET_ALT : ATLAS_TARGET;
+            f32 vertices[] = ATLAS_UV_VERTICES(atlas);
+            canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, rootTransform, vertices, color);
+        };
 
-        // Layers
-		for (auto [i, id] : self->anm2->layerMap)
+        auto layer_draw = [&](mat4 rootModel, s32 id, f32 time, vec3 colorOffset = {}, f32 alphaOffset = {}, bool isOnionskin = {})
         {
-            Anm2Frame frame;
             Anm2Item& layerAnimation = animation->layerAnimations[id];
+            if (!layerAnimation.isVisible || layerAnimation.frames.size() <= 0) return;
 
-            if (!layerAnimation.isVisible || layerAnimation.frames.size() <= 0)
-                continue;
+            Anm2Frame frame;
+            anm2_frame_from_time(self->anm2, &frame, Anm2Reference{animationID, ANM2_LAYER, id}, time);
+            if (!frame.isVisible) return;
 
-            anm2_frame_from_time(self->anm2, &frame, Anm2Reference{animationID, ANM2_LAYER, id}, self->time);
-
-            if (!frame.isVisible)
-                continue;
-
-            mat4 model = canvas_model_get(frame.size, frame.position, frame.pivot, PERCENT_TO_UNIT(frame.scale), frame.rotation);
+            mat4 model = quad_model_get(frame.size, frame.position, frame.pivot, PERCENT_TO_UNIT(frame.scale), frame.rotation);
             mat4 layerTransform = transform * (rootModel * model);
+            vec3 frameColorOffset = frame.offsetRGB + colorOffset;
+            vec4 frameTint = frame.tintRGBA;
+            frameTint.a = std::max(0.0f, frameTint.a - alphaOffset);
+            
+            Anm2Spritesheet* spritesheet = map_find(self->anm2->spritesheets, self->anm2->layers[id].spritesheetID);
+            if (!spritesheet) return;
 
-            Texture& texture = self->anm2->spritesheets[self->anm2->layers[id].spritesheetID].texture;
-           
-            if (!texture.isInvalid)
-            {
-                vec2 uvMin = frame.crop / vec2(texture.size);
-                vec2 uvMax = (frame.crop + frame.size) / vec2(texture.size);
-                f32 vertices[] = UV_VERTICES(uvMin, uvMax);
+            Texture& texture = spritesheet->texture;
+            if (texture.isInvalid) return;
+            
+            vec2 inset = 0.5f / vec2(texture.size);
+            vec2 uvMin = frame.crop / vec2(texture.size) + inset;
+            vec2 uvMax = (frame.crop + frame.size) / vec2(texture.size) - inset;
+            f32 vertices[] = UV_VERTICES(uvMin, uvMax);
+            canvas_texture_draw(&self->canvas, shaderTexture, texture.id, layerTransform, vertices, frameTint, frameColorOffset);
 
-                canvas_texture_draw(&self->canvas, shaderTexture, texture.id, layerTransform, vertices, frame.tintRGBA, frame.offsetRGB);
-            }
- 
             if (self->settings->previewIsBorder)
-                canvas_rect_draw(&self->canvas, shaderLine, layerTransform, PREVIEW_BORDER_COLOR);
+            {
+                vec4 borderColor = isOnionskin ? vec4(colorOffset, 1.0f - alphaOffset) : PREVIEW_BORDER_COLOR;
+                canvas_rect_draw(&self->canvas, shaderLine, layerTransform, borderColor);
+            }
 
             if (self->settings->previewIsPivots)
             {
+                vec4 pivotColor = isOnionskin ? vec4(colorOffset, 1.0f - alphaOffset) : PREVIEW_PIVOT_COLOR;
                 f32 vertices[] = ATLAS_UV_VERTICES(ATLAS_PIVOT);
-                mat4 pivotModel = canvas_model_get(CANVAS_PIVOT_SIZE, frame.position, CANVAS_PIVOT_SIZE * 0.5f, PERCENT_TO_UNIT(frame.scale), frame.rotation);
+                mat4 pivotModel = quad_model_get(CANVAS_PIVOT_SIZE, frame.position, CANVAS_PIVOT_SIZE * 0.5f, PERCENT_TO_UNIT(frame.scale), frame.rotation);
                 mat4 pivotTransform = transform * (rootModel * pivotModel);
-                canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, pivotTransform, vertices, PREVIEW_PIVOT_COLOR);
+                canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, pivotTransform, vertices, pivotColor);
             }
-        }
+        };
 
-        // Nulls
-        if (self->settings->previewIsTargets)
+        auto null_draw = [&](mat4 rootModel, s32 id, f32 time, vec3 colorOffset = {}, f32 alphaOffset = {}, bool isOnionskin = {}) 
         {
-            for (auto& [id, nullAnimation] : animation->nullAnimations)
-            {
-                if (!nullAnimation.isVisible || nullAnimation.frames.size() <= 0)
-                    continue;
+            Anm2Item& nullAnimation = animation->nullAnimations[id];
+            if (!nullAnimation.isVisible || nullAnimation.frames.size() <= 0) return;
 
-                Anm2Frame frame;
-                anm2_frame_from_time(self->anm2, &frame, Anm2Reference{animationID, ANM2_NULL, id}, self->time);
-
-                if (!frame.isVisible)
-                    continue;
-
-                Anm2Null null = self->anm2->nulls[id];
-
-                vec4 color = (self->reference->itemType == ANM2_NULL && self->reference->itemID == id) ? 
-                             PREVIEW_NULL_SELECTED_COLOR                                               : 
-                             PREVIEW_NULL_COLOR;
-
-                vec2 size = null.isShowRect ? CANVAS_PIVOT_SIZE : PREVIEW_TARGET_SIZE;
-                AtlasType atlas = null.isShowRect ? ATLAS_SQUARE : ATLAS_TARGET;
-          
-                mat4 model = canvas_model_get(size, frame.position, size * 0.5f, PERCENT_TO_UNIT(frame.scale), frame.rotation);
-                mat4 nullTransform = transform * (rootModel * model);
-     
-                f32 vertices[] = ATLAS_UV_VERTICES(atlas);
-        
-                canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, nullTransform, vertices, color);
-
-                if (null.isShowRect)
-                {
-                    mat4 rectModel = canvas_model_get(PREVIEW_NULL_RECT_SIZE, frame.position, PREVIEW_NULL_RECT_SIZE * 0.5f, PERCENT_TO_UNIT(frame.scale), frame.rotation);
-                    mat4 rectTransform = transform * (rootModel * rectModel);
-                    canvas_rect_draw(&self->canvas, shaderLine, rectTransform, color);
-                }
-            }
-        }
-    }
-
-    s32& animationOverlayID = self->animationOverlayID;
-    Anm2Animation* animationOverlay = map_find(self->anm2->animations, animationOverlayID);
-
-    if (animationOverlay)
-    {
-        Anm2Frame root;
-        mat4 rootModel = mat4(1.0f);
-        
-        anm2_frame_from_time(self->anm2, &root, Anm2Reference{animationOverlayID, ANM2_ROOT}, self->time);
-
-        if (self->settings->previewIsRootTransform)
-            rootModel = canvas_parent_model_get(root.position, {}, PERCENT_TO_UNIT(root.scale));
-
-		for (auto [i, id] : self->anm2->layerMap)
-        {
             Anm2Frame frame;
-            Anm2Item& layerAnimation = animationOverlay->layerAnimations[id];
+            anm2_frame_from_time(self->anm2, &frame, Anm2Reference{animationID, ANM2_NULL, id}, time);
+            if (!frame.isVisible) return;
 
-            if (!layerAnimation.isVisible || layerAnimation.frames.size() <= 0)
-                continue;
+            Anm2Null null = self->anm2->nulls[id];
 
-            anm2_frame_from_time(self->anm2, &frame, Anm2Reference{animationOverlayID, ANM2_LAYER, id}, self->time);
+            vec4 color = isOnionskin ? vec4(colorOffset, 1.0f - alphaOffset) : 
+            (self->reference->itemType == ANM2_NULL && self->reference->itemID == id) ? 
+            PREVIEW_NULL_SELECTED_COLOR : PREVIEW_NULL_COLOR;
 
-            if (!frame.isVisible)
-                continue;
+            vec2 size = null.isShowRect ? CANVAS_PIVOT_SIZE : PREVIEW_TARGET_SIZE;
+            AtlasType atlas = null.isShowRect ? ATLAS_SQUARE : self->settings->previewIsAltIcons ? ATLAS_TARGET_ALT : ATLAS_TARGET;
+      
+            mat4 model = quad_model_get(size, frame.position, size * 0.5f, PERCENT_TO_UNIT(frame.scale), frame.rotation);
+            mat4 nullTransform = transform * (rootModel * model);
+ 
+            f32 vertices[] = ATLAS_UV_VERTICES(atlas);
+    
+            canvas_texture_draw(&self->canvas, shaderTexture, self->resources->atlas.id, nullTransform, vertices, color);
 
-            Texture& texture = self->anm2->spritesheets[self->anm2->layers[id].spritesheetID].texture;
-            
-            if (texture.isInvalid) continue;
+            if (null.isShowRect)
+            {
+                mat4 rectModel = quad_model_get(PREVIEW_NULL_RECT_SIZE, frame.position, PREVIEW_NULL_RECT_SIZE * 0.5f, PERCENT_TO_UNIT(frame.scale), frame.rotation);
+                mat4 rectTransform = transform * (rootModel * rectModel);
+                canvas_rect_draw(&self->canvas, shaderLine, rectTransform, color);
+            }
+        };
 
-            vec2 uvMin = frame.crop / vec2(texture.size);
-            vec2 uvMax = (frame.crop + frame.size) / vec2(texture.size);
-            f32 vertices[] = UV_VERTICES(uvMin, uvMax);
+        auto base_draw = [&](f32 time, vec3 colorOffset = {}, f32 alphaOffset = {}, bool isOnionskin = {})
+        {
+            Anm2Frame root;
+            anm2_frame_from_time(self->anm2, &root, Anm2Reference{animationID, ANM2_ROOT}, time);
 
-            mat4 model = canvas_model_get(frame.size, frame.position, frame.pivot, PERCENT_TO_UNIT(frame.scale), frame.rotation);
-            mat4 layerTransform = transform * (rootModel * model);
+            mat4 rootModel = self->settings->previewIsRootTransform ?
+            quad_model_parent_get(root.position, {}, PERCENT_TO_UNIT(root.scale), root.rotation) : mat4(1.0f);
 
-            vec4 tint = frame.tintRGBA;
-            tint.a *= U8_TO_FLOAT(self->settings->previewOverlayTransparency);
+            if (self->settings->previewIsIcons && animation->rootAnimation.isVisible && root.isVisible)
+                root_draw(root, colorOffset, alphaOffset, isOnionskin);
 
-            canvas_texture_draw(&self->canvas, shaderTexture, texture.id, layerTransform, vertices, tint, frame.offsetRGB);
-        }
-    }
+            for (auto id : animation->layerOrder)
+                layer_draw(rootModel, id, time, colorOffset, alphaOffset, isOnionskin);
+
+            if (self->settings->previewIsIcons)
+                for (auto& [id, _] : animation->nullAnimations)
+                    null_draw(rootModel, id, time, colorOffset, alphaOffset, isOnionskin); 
+        };
+
+        auto onionskin_draw = [&](s32 count, s32 direction, vec3 colorOffset)
+        {
+            for (s32 i = 1; i <= count; i++)
+            {
+                f32 time  = self->time + (f32)(direction * i);
+                f32 alphaOffset = (1.0f / (count + 1)) * i;
+                base_draw(time, colorOffset, alphaOffset, true);
+            }
+        };
+
+        auto onionskins_draw = [&]()
+        {
+            if (!self->settings->onionskinIsEnabled) return;
+            onionskin_draw(self->settings->onionskinBeforeCount, -1, self->settings->onionskinBeforeColorOffset);
+            onionskin_draw(self->settings->onionskinAfterCount, 1, self->settings->onionskinAfterColorOffset);
+        };
+
+        if (self->settings->onionskinDrawOrder == ONIONSKIN_BELOW) onionskins_draw();
+        base_draw(self->time);
+        if (self->settings->onionskinDrawOrder == ONIONSKIN_ABOVE) onionskins_draw();
+    };
+
+    animation_draw(self->reference->animationID);
+    animation_draw(self->animationOverlayID);
 
     canvas_unbind();
 }

src/render.h

@@ -7,17 +7,16 @@ enum RenderType
     RENDER_PNG,
     RENDER_GIF,
     RENDER_WEBM,
-    RENDER_MP4
+    RENDER_MP4,
+    RENDER_COUNT
 };
 
-constexpr inline s32 RENDER_COUNT = RENDER_MP4 + 1;
-
 const inline std::string RENDER_TYPE_STRINGS[] = 
 {
     "PNG Images",
     "GIF image",
     "WebM video",
-    "MP4 video"
+    "MP4 video",
 };
 
 const inline std::string RENDER_EXTENSIONS[RENDER_COUNT] =
@@ -25,5 +24,5 @@ const inline std::string RENDER_EXTENSIONS[RENDER_COUNT] =
     ".png",
     ".gif",
     ".webm",
-    ".mp4"
+    ".mp4",
 };

src/resources.cpp

@@ -2,7 +2,7 @@
 
 void resources_init(Resources* self)
 {
-    texture_from_encoded_data_init(&self->atlas, TEXTURE_ATLAS_SIZE, TEXTURE_CHANNELS, (u8*)TEXTURE_ATLAS, TEXTURE_ATLAS_LENGTH);
+    texture_from_encoded_data_init(&self->atlas, TEXTURE_ATLAS_SIZE, (u8*)TEXTURE_ATLAS, TEXTURE_ATLAS_LENGTH);
     
     for (s32 i = 0; i < SHADER_COUNT; i++) 
         shader_init(&self->shaders[i], SHADER_DATA[i].vertex, SHADER_DATA[i].fragment);

src/settings.cpp

@@ -6,70 +6,87 @@ static void _settings_setting_load(Settings* self, const std::string& line)
     {
         const auto& entry = SETTINGS_ENTRIES[i];
         const std::string& key = entry.key;
-
         void* target = (u8*)self + entry.offset;
 
         auto match_key = [&](const std::string& full) -> const char*
         {
-            if (!line.starts_with(full)) 
+            if (!line.starts_with(full))
                 return nullptr;
+
             size_t p = full.size();
             while (p < line.size() && std::isspace((u8)line[p])) ++p;
-            if (p < line.size() && line[p] == '=') return line.c_str() + p + 1;
+            if (p < line.size() && line[p] == '=') 
+                return line.c_str() + p + 1;
             return nullptr;
         };
 
-        auto* value = match_key(key);
+        const char* value = nullptr;
 
-        if (value)
+        switch (entry.type)
         {
-            switch (entry.type)
+            case TYPE_INT:
+                if ((value = match_key(key))) { *(s32*)target = std::atoi(value); return; }
+                break;
+            case TYPE_BOOL:
+                if ((value = match_key(key))) { *(bool*)target = string_to_bool(value); return; }
+                break;
+            case TYPE_FLOAT:
+                if ((value = match_key(key))) { *(f32*)target = std::atof(value); return; }
+                break;
+            case TYPE_STRING:
+                if ((value = match_key(key))) { *(std::string*)target = value; return; }
+                break;
+            case TYPE_IVEC2:
             {
-                case TYPE_INT:    
-                    *(s32*)target = std::atoi(value); 
-                    return;
-                case TYPE_BOOL:   
-                    *(bool*)target = string_to_bool(value); 
-                    return;
-                case TYPE_FLOAT:  
-                    *(f32*)target = std::atof(value); 
-                    return;
-                case TYPE_STRING: 
-                    *(std::string*)target = value; 
-                    return;
-                default: 
-                    break;
+                ivec2* v = (ivec2*)target;
+                if ((value = match_key(key + "X"))) { v->x = std::atoi(value); return; }
+                if ((value = match_key(key + "Y"))) { v->y = std::atoi(value); return; }
+                break;
             }
-        }
-
-        if (entry.type == TYPE_VEC2)
-        {
-            vec2* v = (vec2*)target;
-            if ((value = match_key(key + "X"))) { v->x = std::atof(value); return; }
-            if ((value = match_key(key + "Y"))) { v->y = std::atof(value); return; }
-        }
-        else if (entry.type == TYPE_IVEC2)
-        {
-            ivec2* v = (ivec2*)target;
-            if ((value = match_key(key + "X"))) { v->x = std::atoi(value); return; }
-            if ((value = match_key(key + "Y"))) { v->y = std::atoi(value); return; }
-        }
-        else if (entry.type == TYPE_VEC3)
-        {
-            vec3* v = (vec3*)target;
-            if ((value = match_key(key + "R"))) { v->x = std::atof(value); return; }
-            if ((value = match_key(key + "G"))) { v->y = std::atof(value); return; }
-            if ((value = match_key(key + "B"))) { v->z = std::atof(value); return; }
-        }
-        else if (entry.type == TYPE_VEC4)
-        {
-            vec4* v = (vec4*)target;
-            if ((value = match_key(key + "R"))) { v->x = std::atof(value); return; }
-            if ((value = match_key(key + "G"))) { v->y = std::atof(value); return; }
-            if ((value = match_key(key + "B"))) { v->z = std::atof(value); return; }
-            if ((value = match_key(key + "A"))) { v->w = std::atof(value); return; }
+            case TYPE_IVEC2_WH:
+            {
+                ivec2* v = (ivec2*)target;
+                if ((value = match_key(key + "W"))) { v->x = std::atoi(value); return; }
+                if ((value = match_key(key + "H"))) { v->y = std::atoi(value); return; }
+                break;
+            };
+            case TYPE_VEC2:
+            {
+                vec2* v = (vec2*)target;
+                if ((value = match_key(key + "X"))) { v->x = std::atof(value); return; }
+                if ((value = match_key(key + "Y"))) { v->y = std::atof(value); return; }
+                break;
+            }
+            case TYPE_VEC2_WH:
+            {
+                vec2* v = (vec2*)target;
+                if ((value = match_key(key + "W"))) { v->x = std::atof(value); return; }
+                if ((value = match_key(key + "H"))) { v->y = std::atof(value); return; }
+                break;
+            };
+            case TYPE_VEC3:
+            {
+                vec3* v = (vec3*)target;
+                if ((value = match_key(key + "R"))) { v->x = std::atof(value); return; }
+                if ((value = match_key(key + "G"))) { v->y = std::atof(value); return; }
+                if ((value = match_key(key + "B"))) { v->z = std::atof(value); return; }
+                break;
+            }
+            case TYPE_VEC4:
+            {
+                vec4* v = (vec4*)target;
+                if ((value = match_key(key + "R"))) { v->x = std::atof(value); return; }
+                if ((value = match_key(key + "G"))) { v->y = std::atof(value); return; }
+                if ((value = match_key(key + "B"))) { v->z = std::atof(value); return; }
+                if ((value = match_key(key + "A"))) { v->w = std::atof(value); return; }
+                break;
+            }
+            default:
+                break;
         }
     }
+
+    log_warning(std::format(SETTINGS_VALUE_INIT_WARNING, line));
 }
 
 std::string settings_path_get(void)
@@ -111,6 +128,13 @@ static void _settings_setting_write(Settings* self, std::ostream& out, SettingsE
             out << entry.key << "Y=" << data->y << "\n";
             break;
         }
+        case TYPE_IVEC2_WH:
+        {
+            ivec2* data = (ivec2*)(selfPointer + entry.offset);
+            out << entry.key << "W=" << data->x << "\n";
+            out << entry.key << "H=" << data->y << "\n";
+            break;
+        }
         case TYPE_VEC2:
         {
             vec2* data = (vec2*)(selfPointer + entry.offset);
@@ -118,6 +142,13 @@ static void _settings_setting_write(Settings* self, std::ostream& out, SettingsE
             out << entry.key << "Y=" << std::format(SETTINGS_FLOAT_FORMAT, data->y) << "\n";
             break;
         }
+        case TYPE_VEC2_WH:
+        {
+            vec2* data = (vec2*)(selfPointer + entry.offset);
+            out << entry.key << "W=" << std::format(SETTINGS_FLOAT_FORMAT, data->x) << "\n";
+            out << entry.key << "H=" << std::format(SETTINGS_FLOAT_FORMAT, data->y) << "\n";
+            break;
+        }
         case TYPE_VEC3:
         {
             vec3* data = (vec3*)(selfPointer + entry.offset);
@@ -214,47 +245,32 @@ void settings_init(Settings* self)
 {
     const std::string path = settings_path_get();
     std::ifstream file(path, std::ios::binary);
-    std::istream* in = nullptr;
-    std::istringstream defaultSettings;
-    
+
     if (file)
-    {
         log_info(std::format(SETTINGS_INIT_INFO, path));
-        in = &file; 
-    }
     else
     {
-        log_error(std::format(SETTINGS_INIT_ERROR, path));
-        log_info(SETTINGS_DEFAULT_INFO);
-        defaultSettings.str(SETTINGS_DEFAULT);
-        in = &defaultSettings;
+        log_warning(std::format(SETTINGS_INIT_WARNING, path));
+        settings_save(self);
+        std::ofstream out(path, std::ios::binary | std::ios::app);
+        out << SETTINGS_IMGUI_DEFAULT;
+        out.flush();
+        out.close();
+        file.open(path, std::ios::binary);
     }
 
     std::string line;
     bool inSettingsSection = false;
 
-    while (std::getline(*in, line)) 
-    { 
-        if (line == SETTINGS_SECTION)
-        { 
-            inSettingsSection = true; 
-            continue; 
-        } 
-        if (line == SETTINGS_SECTION_IMGUI) break; 
-        if (inSettingsSection) _settings_setting_load(self, line); 
-    }
-
-    // Save default settings
-    if (!file) 
+    while (std::getline(file, line))
     {
-        std::ofstream out(path, std::ios::binary | std::ios::trunc);
-        if (out) 
+        if (line == SETTINGS_SECTION)
         {
-            out << SETTINGS_DEFAULT;
-            out.flush();
-            log_info(std::format(SETTINGS_SAVE_INFO, path));
-        } 
-        else
-            log_error(std::format(SETTINGS_DEFAULT_ERROR, path));
+            inSettingsSection = true;
+            continue;
+        }
+        if (line.empty()) continue;
+        if (line == SETTINGS_SECTION_IMGUI) break;
+        if (inSettingsSection) _settings_setting_load(self, line);
     }
 }

src/settings.h

@@ -4,17 +4,15 @@
 #include "render.h"
 #include "tool.h"
 
-#define SETTINGS_BUFFER 0xFFFF
-#define SETTINGS_BUFFER_ITEM 0xFF
 #define SETTINGS_SECTION "[Settings]"
 #define SETTINGS_SECTION_IMGUI "# Dear ImGui"
-#define SETTINGS_INIT_ERROR "Failed to read settings file: {}"
-#define SETTINGS_DEFAULT_ERROR "Failed to write default settings file: {}"
+#define SETTINGS_INIT_WARNING "Unable to read settings file: {}; using default settings"
+#define SETTINGS_INIT_ERROR "Unable to read settings file: {}"
 #define SETTINGS_SAVE_ERROR "Failed to write settings file: {}"
 #define SETTINGS_SAVE_FINALIZE_ERROR "Failed to write settings file: {} ({})"
+#define SETTINGS_VALUE_INIT_WARNING "Unknown setting: {}"
 #define SETTINGS_FLOAT_FORMAT "{:.3f}"
 #define SETTINGS_INIT_INFO "Initialized settings from: {}"
-#define SETTINGS_DEFAULT_INFO "Using default settings"
 #define SETTINGS_DIRECTORY_ERROR "Failed to create settings directory: {} ({})"
 #define SETTINGS_SAVE_INFO "Saved settings to: {}"
 
@@ -22,6 +20,147 @@
 #define SETTINGS_PATH "settings.ini"
 #define SETTINGS_TEMPORARY_EXTENSION ".tmp"
 
+#ifdef _WIN32
+#define SETTINGS_FFMPEG_PATH_VALUE_DEFAULT "C:\\ffmpeg\\bin\\ffmpeg.exe"
+#else
+#define SETTINGS_FFMPEG_PATH_VALUE_DEFAULT "/usr/bin/ffmpeg"
+#endif
+
+#define SETTINGS_LIST \
+    /* name,                  symbol,                       type,              defaultValue */ \
+    X(windowSize,             WINDOW_SIZE,                  TYPE_IVEC2_WH,     {1600, 900}) \
+    X(isVsync,                IS_VSYNC,                     TYPE_BOOL,         true) \
+    \
+    X(hotkeyCenterView,       HOTKEY_CENTER_VIEW,           TYPE_STRING,       "Home") \
+    X(hotkeyFit,              HOTKEY_FIT,                   TYPE_STRING,       "F") \
+    X(hotkeyZoomIn,           HOTKEY_ZOOM_IN,               TYPE_STRING,       "Ctrl++") \
+    X(hotkeyZoomOut,          HOTKEY_ZOOM_OUT,              TYPE_STRING,       "Ctrl+-") \
+    X(hotkeyPlayPause,        HOTKEY_PLAY_PAUSE,            TYPE_STRING,       "Space") \
+    X(hotkeyOnionskin,        HOTKEY_ONIONSKIN,             TYPE_STRING,       "O") \
+    X(hotkeyNew,              HOTKEY_NEW,                   TYPE_STRING,       "Ctrl+N") \
+    X(hotkeyOpen,             HOTKEY_OPEN,                  TYPE_STRING,       "Ctrl+O") \
+    X(hotkeySave,             HOTKEY_SAVE,                  TYPE_STRING,       "Ctrl+S") \
+    X(hotkeySaveAs,           HOTKEY_SAVE_AS,               TYPE_STRING,       "Ctrl+Shift+S") \
+    X(hotkeyExit,             HOTKEY_EXIT,                  TYPE_STRING,       "Alt+F4") \
+    X(hotkeyPan,              HOTKEY_PAN,                   TYPE_STRING,       "P") \
+    X(hotkeyMove,             HOTKEY_MOVE,                  TYPE_STRING,       "V") \
+    X(hotkeyRotate,           HOTKEY_ROTATE,                TYPE_STRING,       "R") \
+    X(hotkeyScale,            HOTKEY_SCALE,                 TYPE_STRING,       "S") \
+    X(hotkeyCrop,             HOTKEY_CROP,                  TYPE_STRING,       "C") \
+    X(hotkeyDraw,             HOTKEY_DRAW,                  TYPE_STRING,       "B") \
+    X(hotkeyErase,            HOTKEY_ERASE,                 TYPE_STRING,       "E") \
+    X(hotkeyColorPicker,      HOTKEY_COLOR_PICKER,          TYPE_STRING,       "I") \
+    X(hotkeyUndo,             HOTKEY_UNDO,                  TYPE_STRING,       "Ctrl+Z") \
+    X(hotkeyRedo,             HOTKEY_REDO,                  TYPE_STRING,       "Ctrl+Shift+Z") \
+    X(hotkeyCopy,             HOTKEY_COPY,                  TYPE_STRING,       "Ctrl+C") \
+    X(hotkeyCut,              HOTKEY_CUT,                   TYPE_STRING,       "Ctrl+X") \
+    X(hotkeyPaste,            HOTKEY_PASTE,                 TYPE_STRING,       "Ctrl+V") \
+    \
+    X(playbackIsLoop,         PLAYBACK_IS_LOOP,             TYPE_BOOL,         true) \
+    X(playbackIsClampPlayhead,PLAYBACK_IS_CLAMP_PLAYHEAD,   TYPE_BOOL,         true) \
+    \
+    X(changeIsCrop,           CHANGE_IS_CROP,               TYPE_BOOL,         false) \
+    X(changeIsSize,           CHANGE_IS_SIZE,               TYPE_BOOL,         false) \
+    X(changeIsPosition,       CHANGE_IS_POSITION,           TYPE_BOOL,         false) \
+    X(changeIsPivot,          CHANGE_IS_PIVOT,              TYPE_BOOL,         false) \
+    X(changeIsScale,          CHANGE_IS_SCALE,              TYPE_BOOL,         false) \
+    X(changeIsRotation,       CHANGE_IS_ROTATION,           TYPE_BOOL,         false) \
+    X(changeIsDelay,          CHANGE_IS_DELAY,              TYPE_BOOL,         false) \
+    X(changeIsTint,           CHANGE_IS_TINT,               TYPE_BOOL,         false) \
+    X(changeIsColorOffset,    CHANGE_IS_COLOR_OFFSET,       TYPE_BOOL,         false) \
+    X(changeIsVisibleSet,     CHANGE_IS_VISIBLE_SET,        TYPE_BOOL,         false) \
+    X(changeIsInterpolatedSet,CHANGE_IS_INTERPOLATED_SET,   TYPE_BOOL,         false) \
+    X(changeIsFromSelectedFrame,CHANGE_IS_FROM_SELECTED_FRAME,TYPE_BOOL,       false) \
+    X(changeCrop,             CHANGE_CROP,                  TYPE_VEC2,         {}) \
+    X(changeSize,             CHANGE_SIZE,                  TYPE_VEC2,         {}) \
+    X(changePosition,         CHANGE_POSITION,              TYPE_VEC2,         {}) \
+    X(changePivot,            CHANGE_PIVOT,                 TYPE_VEC2,         {}) \
+    X(changeScale,            CHANGE_SCALE,                 TYPE_VEC2,         {}) \
+    X(changeRotation,         CHANGE_ROTATION,              TYPE_FLOAT,        0.0f) \
+    X(changeDelay,            CHANGE_DELAY,                 TYPE_INT,          0) \
+    X(changeTint,             CHANGE_TINT,                  TYPE_VEC4,         {}) \
+    X(changeColorOffset,      CHANGE_COLOR_OFFSET,          TYPE_VEC3,         {}) \
+    X(changeIsVisible,        CHANGE_IS_VISIBLE,            TYPE_BOOL,         false) \
+    X(changeIsInterpolated,   CHANGE_IS_INTERPOLATED,       TYPE_BOOL,         false) \
+    X(changeNumberFrames,     CHANGE_NUMBER_FRAMES,         TYPE_INT,          1) \
+    \
+    X(scaleValue,             SCALE_VALUE,                  TYPE_FLOAT,        1.0f) \
+    \
+    X(previewIsAxes,          PREVIEW_IS_AXES,              TYPE_BOOL,         true) \
+    X(previewIsGrid,          PREVIEW_IS_GRID,              TYPE_BOOL,         true) \
+    X(previewIsRootTransform, PREVIEW_IS_ROOT_TRANSFORM,    TYPE_BOOL,         true) \
+    X(previewIsTriggers,      PREVIEW_IS_TRIGGERS,          TYPE_BOOL,         true) \
+    X(previewIsPivots,        PREVIEW_IS_PIVOTS,            TYPE_BOOL,         false) \
+    X(previewIsIcons,         PREVIEW_IS_ICONS,           TYPE_BOOL,         true) \
+    X(previewIsBorder,        PREVIEW_IS_BORDER,            TYPE_BOOL,         false) \
+    X(previewIsAltIcons,      PREVIEW_IS_ALT_ICONS,         TYPE_BOOL,         false) \
+    X(previewOverlayTransparency,PREVIEW_OVERLAY_TRANSPARENCY,TYPE_FLOAT,      255.0f) \
+    X(previewZoom,            PREVIEW_ZOOM,                 TYPE_FLOAT,        200.0f) \
+    X(previewPan,             PREVIEW_PAN,                  TYPE_VEC2,         {}) \
+    X(previewGridSize,        PREVIEW_GRID_SIZE,            TYPE_IVEC2,        {32,32}) \
+    X(previewGridOffset,      PREVIEW_GRID_OFFSET,          TYPE_IVEC2,        {}) \
+    X(previewGridColor,       PREVIEW_GRID_COLOR,           TYPE_VEC4,         {1.0,1.0,1.0,0.125}) \
+    X(previewAxesColor,       PREVIEW_AXES_COLOR,           TYPE_VEC4,         {1.0,1.0,1.0,0.125}) \
+    X(previewBackgroundColor, PREVIEW_BACKGROUND_COLOR,     TYPE_VEC4,         {0.113,0.184,0.286,1.0}) \
+    \
+    X(propertiesIsRound,      PROPERTIES_IS_ROUND,          TYPE_BOOL,         false) \
+    \
+    X(generateStartPosition,  GENERATE_START_POSITION,      TYPE_IVEC2,        {}) \
+    X(generateSize,           GENERATE_SIZE,                TYPE_IVEC2,        {64,64}) \
+    X(generatePivot,          GENERATE_PIVOT,               TYPE_IVEC2,        {32,32}) \
+    X(generateRows,           GENERATE_ROWS,                TYPE_INT,          4) \
+    X(generateColumns,        GENERATE_COLUMNS,             TYPE_INT,          4) \
+    X(generateCount,          GENERATE_COUNT,               TYPE_INT,          16) \
+    X(generateDelay,          GENERATE_DELAY,               TYPE_INT,          1) \
+    \
+    X(editorIsGrid,           EDITOR_IS_GRID,               TYPE_BOOL,         true) \
+    X(editorIsGridSnap,       EDITOR_IS_GRID_SNAP,          TYPE_BOOL,         true) \
+    X(editorIsBorder,         EDITOR_IS_BORDER,             TYPE_BOOL,         true) \
+    X(editorZoom,             EDITOR_ZOOM,                  TYPE_FLOAT,        200.0f) \
+    X(editorPan,              EDITOR_PAN,                   TYPE_VEC2,         {0.0,0.0}) \
+    X(editorGridSize,         EDITOR_GRID_SIZE,             TYPE_IVEC2,        {32,32}) \
+    X(editorGridOffset,       EDITOR_GRID_OFFSET,           TYPE_IVEC2,        {32,32}) \
+    X(editorGridColor,        EDITOR_GRID_COLOR,            TYPE_VEC4,         {1.0,1.0,1.0,0.125}) \
+    X(editorBackgroundColor,  EDITOR_BACKGROUND_COLOR,      TYPE_VEC4,         {0.113,0.184,0.286,1.0}) \
+    \
+    X(mergeType,              MERGE_TYPE,                   TYPE_INT,          ANM2_MERGE_APPEND_FRAMES) \
+    X(mergeIsDeleteAnimationsAfter,MERGE_IS_DELETE_ANIMATIONS_AFTER,TYPE_BOOL, false) \
+    \
+    X(bakeInterval,           BAKE_INTERVAL,                TYPE_INT,          1) \
+    X(bakeIsRoundScale,       BAKE_IS_ROUND_SCALE,          TYPE_BOOL,         true) \
+    X(bakeIsRoundRotation,    BAKE_IS_ROUND_ROTATION,       TYPE_BOOL,         true) \
+    \
+    X(timelineAddItemType,    TIMELINE_ADD_ITEM_TYPE,       TYPE_INT,          ANM2_LAYER) \
+    X(timelineIsShowUnused,   TIMELINE_IS_SHOW_UNUSED,      TYPE_BOOL,         true) \
+    \
+    X(onionskinIsEnabled,     ONIONSKIN_IS_ENABLED,         TYPE_BOOL,         false) \
+    X(onionskinDrawOrder,     ONIONSKIN_DRAW_ORDER,         TYPE_INT,          ONIONSKIN_BELOW) \
+    X(onionskinBeforeCount,   ONIONSKIN_BEFORE_COUNT,       TYPE_INT,          0) \
+    X(onionskinAfterCount,    ONIONSKIN_AFTER_COUNT,        TYPE_INT,          0) \
+    X(onionskinBeforeColorOffset,ONIONSKIN_BEFORE_COLOR_OFFSET,TYPE_VEC3,      COLOR_RED) \
+    X(onionskinAfterColorOffset, ONIONSKIN_AFTER_COLOR_OFFSET,TYPE_VEC3,       COLOR_BLUE) \
+    \
+    X(tool,                   TOOL,                         TYPE_INT,          TOOL_PAN) \
+    X(toolColor,              TOOL_COLOR,                   TYPE_VEC4,         {1.0,1.0,1.0,1.0}) \
+    \
+    X(renderType,             RENDER_TYPE,                  TYPE_INT,          RENDER_PNG) \
+    X(renderPath,             RENDER_PATH,                  TYPE_STRING,       ".") \
+    X(renderFormat,           RENDER_FORMAT,                TYPE_STRING,       "{}.png") \
+    X(ffmpegPath,             FFMPEG_PATH,                  TYPE_STRING,       SETTINGS_FFMPEG_PATH_VALUE_DEFAULT)
+
+#define X(name, symbol, type, ...) \
+const inline DATATYPE_TO_CTYPE(type) SETTINGS_##symbol##_DEFAULT = __VA_ARGS__;
+SETTINGS_LIST
+#undef X
+
+struct Settings 
+{
+    #define X(name, symbol, type, ...) \
+    DATATYPE_TO_CTYPE(type) name = SETTINGS_##symbol##_DEFAULT;
+    SETTINGS_LIST
+    #undef X
+};
+    
 struct SettingsEntry
 {
     std::string key;
@@ -29,273 +168,94 @@ struct SettingsEntry
     s32 offset;
 };
 
-struct Settings
+const inline SettingsEntry SETTINGS_ENTRIES[] =
 {
-    ivec2 windowSize = {1080, 720};
-    bool isVsync = true;
-    bool playbackIsLoop = true;
-    bool playbackIsClampPlayhead = true;
-    bool changeIsCrop = false;
-    bool changeIsSize = false;
-    bool changeIsPosition = false;
-    bool changeIsPivot = false;
-    bool changeIsScale = false;
-    bool changeIsRotation = false;
-    bool changeIsDelay = false;
-    bool changeIsTint = false;
-    bool changeIsColorOffset = false;
-    bool changeIsVisibleSet = false;
-    bool changeIsInterpolatedSet = false;
-    bool changeIsFromSelectedFrame = false;
-    vec2 changeCrop{};
-    vec2 changeSize{};
-    vec2 changePosition{};
-    vec2 changePivot{};
-    vec2 changeScale{};
-    f32 changeRotation{};
-    s32 changeDelay{};
-    vec4 changeTint{};
-    vec3 changeColorOffset{};
-    bool changeIsVisible{};
-    bool changeIsInterpolated{};
-    s32 changeNumberFrames = 1;
-    f32 scaleValue = 1.0f;
-    bool previewIsAxes = true;
-    bool previewIsGrid = true;
-    bool previewIsRootTransform = false;
-    bool previewIsTriggers = true;
-    bool previewIsPivots = false;
-    bool previewIsTargets = true;
-    bool previewIsBorder = false;
-    f32 previewOverlayTransparency = 255.0f;
-    f32 previewZoom = 200.0;
-    vec2 previewPan = {0.0, 0.0};
-    ivec2 previewGridSize = {32, 3};
-    ivec2 previewGridOffset{};
-    vec4 previewGridColor = {1.0, 1.0, 1.0, 0.125};
-    vec4 previewAxesColor = {1.0, 1.0, 1.0, 0.125};
-    vec4 previewBackgroundColor = {0.113, 0.184, 0.286, 1.0};
-    ivec2 generateStartPosition = {0, 0};
-    ivec2 generateSize = {64, 64};
-    ivec2 generatePivot = {32, 32};
-    s32 generateRows = 4;
-    s32 generateColumns = 4;
-    s32 generateCount = 16;
-    s32 generateDelay = 1;
-    bool editorIsGrid = true;
-    bool editorIsGridSnap = true;
-    bool editorIsBorder = true;
-    f32 editorZoom = 200.0;
-    vec2 editorPan = {0.0, 0.0};
-    ivec2 editorGridSize = {32, 32};
-    ivec2 editorGridOffset = {32, 32};
-    vec4 editorGridColor = {1.0, 1.0, 1.0, 0.125};
-    vec4 editorBackgroundColor = {0.113, 0.184, 0.286, 1.0};
-    s32 mergeType = ANM2_MERGE_APPEND_FRAMES;
-    bool mergeIsDeleteAnimationsAfter = false;
-    s32 bakeInterval = 1;
-    bool bakeIsRoundScale = true;
-    bool bakeIsRoundRotation = true;
-    s32 tool = TOOL_PAN;
-    vec4 toolColor = {1.0, 1.0, 1.0, 1.0}; 
-    s32 renderType = RENDER_PNG;
-    std::string renderPath = ".";
-    std::string renderFormat = "{}.png";
-    std::string ffmpegPath{};
-}; 
-
-const SettingsEntry SETTINGS_ENTRIES[] =
-{
-    {"window", TYPE_IVEC2, offsetof(Settings, windowSize)},
-    {"isVsync", TYPE_BOOL, offsetof(Settings, isVsync)},
-    {"playbackIsLoop", TYPE_BOOL, offsetof(Settings, playbackIsLoop)},
-    {"playbackIsClampPlayhead", TYPE_BOOL, offsetof(Settings, playbackIsClampPlayhead)},
-    {"changeIsCrop", TYPE_BOOL, offsetof(Settings, changeIsCrop)},
-    {"changeIsSize", TYPE_BOOL, offsetof(Settings, changeIsSize)},
-    {"changeIsPosition", TYPE_BOOL, offsetof(Settings, changeIsPosition)},
-    {"changeIsPivot", TYPE_BOOL, offsetof(Settings, changeIsPivot)},
-    {"changeIsScale", TYPE_BOOL, offsetof(Settings, changeIsScale)},
-    {"changeIsRotation", TYPE_BOOL, offsetof(Settings, changeIsRotation)},
-    {"changeIsDelay", TYPE_BOOL, offsetof(Settings, changeIsDelay)},
-    {"changeIsTint", TYPE_BOOL, offsetof(Settings, changeIsTint)},
-    {"changeIsColorOffset", TYPE_BOOL, offsetof(Settings, changeIsColorOffset)},
-    {"changeIsVisibleSet", TYPE_BOOL, offsetof(Settings, changeIsVisibleSet)},
-    {"changeIsInterpolatedSet", TYPE_BOOL, offsetof(Settings, changeIsInterpolatedSet)},
-    {"changeIsFromSelectedFrame", TYPE_BOOL, offsetof(Settings, changeIsFromSelectedFrame)},
-    {"changeCrop", TYPE_VEC2, offsetof(Settings, changeCrop)},
-    {"changeSize", TYPE_VEC2, offsetof(Settings, changeSize)},
-    {"changePosition", TYPE_VEC2, offsetof(Settings, changePosition)},
-    {"changePivot", TYPE_VEC2, offsetof(Settings, changePivot)},
-    {"changeScale", TYPE_VEC2, offsetof(Settings, changeScale)},
-    {"changeRotation", TYPE_FLOAT, offsetof(Settings, changeRotation)},
-    {"changeDelay", TYPE_INT, offsetof(Settings, changeDelay)},
-    {"changeTint", TYPE_VEC4, offsetof(Settings, changeTint)},
-    {"changeColorOffset", TYPE_VEC3, offsetof(Settings, changeColorOffset)},
-    {"changeIsVisible", TYPE_BOOL, offsetof(Settings, changeIsVisibleSet)},
-    {"changeIsInterpolated", TYPE_BOOL, offsetof(Settings, changeIsInterpolatedSet)},
-    {"changeNumberFrames", TYPE_INT, offsetof(Settings, changeNumberFrames)},
-    {"scaleValue", TYPE_FLOAT, offsetof(Settings, scaleValue)},
-    {"previewIsAxes", TYPE_BOOL, offsetof(Settings, previewIsAxes)},
-    {"previewIsGrid", TYPE_BOOL, offsetof(Settings, previewIsGrid)},
-    {"previewIsRootTransform", TYPE_BOOL, offsetof(Settings, previewIsRootTransform)},
-    {"previewIsTriggers", TYPE_BOOL, offsetof(Settings, previewIsTriggers)},
-    {"previewIsPivots", TYPE_BOOL, offsetof(Settings, previewIsPivots)},
-    {"previewIsTargets", TYPE_BOOL, offsetof(Settings, previewIsTargets)},
-    {"previewIsBorder", TYPE_BOOL, offsetof(Settings, previewIsBorder)},
-    {"previewOverlayTransparency", TYPE_FLOAT, offsetof(Settings, previewOverlayTransparency)},
-    {"previewZoom", TYPE_FLOAT, offsetof(Settings, previewZoom)},
-    {"previewPan", TYPE_VEC2, offsetof(Settings, previewPan)},
-    {"previewGridSize", TYPE_IVEC2, offsetof(Settings, previewGridSize)},
-    {"previewGridOffset", TYPE_IVEC2, offsetof(Settings, previewGridOffset)},
-    {"previewGridColor", TYPE_VEC4, offsetof(Settings, previewGridColor)},
-    {"previewAxesColor", TYPE_VEC4, offsetof(Settings, previewAxesColor)},
-    {"previewBackgroundColor", TYPE_VEC4, offsetof(Settings, previewBackgroundColor)},
-    {"generateStartPosition", TYPE_IVEC2, offsetof(Settings, generateStartPosition)},
-    {"generateSize", TYPE_IVEC2, offsetof(Settings, generateSize)},
-    {"generatePivot", TYPE_IVEC2, offsetof(Settings, generatePivot)},
-    {"generateRows", TYPE_INT, offsetof(Settings, generateRows)},
-    {"generateColumns", TYPE_INT, offsetof(Settings, generateColumns)},
-    {"generateCount", TYPE_INT, offsetof(Settings, generateCount)},
-    {"generateDelay", TYPE_INT, offsetof(Settings, generateDelay)},
-    {"editorIsGrid", TYPE_BOOL, offsetof(Settings, editorIsGrid)},
-    {"editorIsGridSnap", TYPE_BOOL, offsetof(Settings, editorIsGridSnap)},
-    {"editorIsBorder", TYPE_BOOL, offsetof(Settings, editorIsBorder)},
-    {"editorZoom", TYPE_FLOAT, offsetof(Settings, editorZoom)},
-    {"editorPan", TYPE_VEC2, offsetof(Settings, editorPan)},
-    {"editorGridSize", TYPE_IVEC2, offsetof(Settings, editorGridSize)},
-    {"editorGridOffset", TYPE_IVEC2, offsetof(Settings, editorGridOffset)},
-    {"editorGridColor", TYPE_VEC4, offsetof(Settings, editorGridColor)},
-    {"editorBackgroundColor", TYPE_VEC4, offsetof(Settings, editorBackgroundColor)},
-    {"mergeType", TYPE_INT, offsetof(Settings, mergeType)},
-    {"mergeIsDeleteAnimationsAfter", TYPE_BOOL, offsetof(Settings, mergeIsDeleteAnimationsAfter)},
-    {"bakeInterval", TYPE_INT, offsetof(Settings, bakeInterval)},
-    {"bakeRoundScale", TYPE_BOOL, offsetof(Settings, bakeIsRoundScale)},
-    {"bakeRoundRotation", TYPE_BOOL, offsetof(Settings, bakeIsRoundRotation)},
-    {"tool", TYPE_INT, offsetof(Settings, tool)},
-    {"toolColor", TYPE_VEC4, offsetof(Settings, toolColor)},
-    {"renderType", TYPE_INT, offsetof(Settings, renderType)},
-    {"renderPath", TYPE_STRING, offsetof(Settings, renderPath)},
-    {"renderFormat", TYPE_STRING, offsetof(Settings, renderFormat)},
-    {"ffmpegPath", TYPE_STRING, offsetof(Settings, ffmpegPath)}
+    #define X(name, symbol, type, ...) \
+    { #name, type, offsetof(Settings, name) },
+    SETTINGS_LIST
+    #undef X
 };
+
 constexpr s32 SETTINGS_COUNT = (s32)std::size(SETTINGS_ENTRIES);
 
-const std::string SETTINGS_DEFAULT = R"(
-[Settings]
-windowX=1920
-windowY=1080
-isVsync=true
-playbackIsLoop=true
-playbackIsClampPlayhead=false
-changeIsCrop=false
-changeIsSize=false
-changeIsPosition=false
-changeIsPivot=false
-changeIsScale=false
-changeIsRotation=false
-changeIsDelay=false
-changeIsTint=false
-changeIsColorOffset=false
-changeIsVisibleSet=false
-changeIsInterpolatedSet=false
-changeIsFromSelectedFrame=false
-changeCropX=0.000
-changeCropY=0.000
-changeSizeX=0.000
-changeSizeY=0.000
-changePositionX=0.000
-changePositionY=0.000
-changePivotX=0.000
-changePivotY=0.000
-changeScaleX=0.000
-changeScaleY=0.000
-changeRotation=0.000
-changeDelay=1
-changeTintR=0.000
-changeTintG=0.000
-changeTintB=0.000
-changeTintA=0.000
-changeColorOffsetR=0.000
-changeColorOffsetG=0.000
-changeColorOffsetB=0.000
-changeIsVisible=false
-changeIsInterpolated=false
-changeNumberFrames=1
-scaleValue=1.000
-previewIsAxes=true
-previewIsGrid=false
-previewIsRootTransform=true
-previewIsTriggers=false
-previewIsPivots=false
-previewIsTargets=true
-previewIsBorder=false
-previewOverlayTransparency=255.000
-previewZoom=400.000
-previewPanX=0.000
-previewPanY=0.000
-previewGridSizeX=32
-previewGridSizeY=32
-previewGridOffsetX=0
-previewGridOffsetY=0
-previewGridColorR=1.000
-previewGridColorG=1.000
-previewGridColorB=1.000
-previewGridColorA=0.125
-previewAxesColorR=1.000
-previewAxesColorG=1.000
-previewAxesColorB=1.000
-previewAxesColorA=0.125
-previewBackgroundColorR=0.114
-previewBackgroundColorG=0.184
-previewBackgroundColorB=0.286
-previewBackgroundColorA=1.000
-generateStartPositionX=0.000
-generateStartPositionY=0.000
-generateSizeX=0.000
-generateSizeY=0.000
-generatePivotX=0.000
-generatePivotY=0.000
-generateRows=4
-generateColumns=4
-generateCount=16
-generateDelay=1
-editorIsGrid=true
-editorIsGridSnap=true
-editorIsBorder=true
-editorZoom=400.000
-editorPanX=0.000
-editorPanY=0.000
-editorGridSizeX=32
-editorGridSizeY=32
-editorGridOffsetX=0
-editorGridOffsetY=0
-editorGridColorR=1.000
-editorGridColorG=1.000
-editorGridColorB=1.000
-editorGridColorA=0.125
-editorBackgroundColorR=0.113
-editorBackgroundColorG=0.183
-editorBackgroundColorB=0.286
-editorBackgroundColorA=1.000
-mergeType=1
-mergeIsDeleteAnimationsAfter=false
-bakeInterval=1
-bakeRoundScale=true
-bakeRoundRotation=true
-tool=0
-toolColorR=0.000
-toolColorG=0.000
-toolColorB=0.000
-toolColorA=1.000
-renderType=0
-renderPath=.
-renderFormat={}.png
-ffmpegPath=/usr/bin/ffmpeg
+#define HOTKEY_LIST \
+    X(NONE,     "None")                 \
+    X(CENTER_VIEW,     "Center View")   \
+    X(FIT,     "Fit")                   \
+    X(ZOOM_IN,     "Zoom In")           \
+    X(ZOOM_OUT,     "Zoom Out")         \
+    X(PLAY_PAUSE,     "Play/Pause")     \
+    X(ONIONSKIN,     "Onionskin")       \
+    X(NEW,     "New")                   \
+    X(OPEN,     "Open")                 \
+    X(SAVE,     "Save")                 \
+    X(SAVE_AS,     "Save As")           \
+    X(EXIT,   "Exit")                   \
+    X(PAN,     "Pan")                   \
+    X(MOVE,     "Move")                 \
+    X(ROTATE,     "Rotate")             \
+    X(SCALE,     "Scale")               \
+    X(CROP,     "Crop")                 \
+    X(DRAW,     "Draw")                 \
+    X(ERASE,     "Erase")               \
+    X(COLOR_PICKER,     "Color Picker") \
+    X(UNDO,     "Undo")                 \
+    X(REDO,     "Redo")                 \
+    X(COPY,     "Copy")                 \
+    X(CUT,     "Cut")                   \
+    X(PASTE,     "Paste")               \
+       
+typedef enum 
+{
+    #define X(name, str) HOTKEY_##name,
+    HOTKEY_LIST
+    #undef X
+    HOTKEY_COUNT
+} HotkeyType;
 
+const inline char* HOTKEY_STRINGS[] = 
+{
+    #define X(name, str) str,
+    HOTKEY_LIST
+    #undef X
+};
+
+using HotkeyMember = std::string Settings::*;
+
+const inline HotkeyMember SETTINGS_HOTKEY_MEMBERS[HOTKEY_COUNT] =
+{
+    nullptr,
+    &Settings::hotkeyCenterView,
+    &Settings::hotkeyFit,
+    &Settings::hotkeyZoomIn,
+    &Settings::hotkeyZoomOut,
+    &Settings::hotkeyPlayPause,
+    &Settings::hotkeyOnionskin,
+    &Settings::hotkeyNew,
+    &Settings::hotkeyOpen,
+    &Settings::hotkeySave,
+    &Settings::hotkeySaveAs,
+    &Settings::hotkeyExit,
+    &Settings::hotkeyPan,
+    &Settings::hotkeyMove,
+    &Settings::hotkeyRotate,
+    &Settings::hotkeyScale,
+    &Settings::hotkeyCrop,
+    &Settings::hotkeyDraw,
+    &Settings::hotkeyErase,
+    &Settings::hotkeyColorPicker,
+    &Settings::hotkeyUndo,
+    &Settings::hotkeyRedo,
+    &Settings::hotkeyCopy,
+    &Settings::hotkeyCut,
+    &Settings::hotkeyPaste
+};
+
+const std::string SETTINGS_IMGUI_DEFAULT = R"(
 # Dear ImGui
 [Window][## Window]
 Pos=0,32
-Size=1918,1032
+Size=1600,868
 Collapsed=0
 
 [Window][Debug##Default]
@@ -305,66 +265,86 @@ Collapsed=0
 
 [Window][Tools]
 Pos=8,40
-Size=39,654
+Size=38,516
 Collapsed=0
 DockId=0x0000000B,0
 
 [Window][Animations]
-Pos=1452,388
-Size=458,306
+Pos=1289,307
+Size=303,249
 Collapsed=0
 DockId=0x0000000A,0
 
 [Window][Events]
-Pos=1025,348
-Size=425,346
+Pos=957,264
+Size=330,292
 Collapsed=0
-DockId=0x00000008,0
+DockId=0x00000008,2
 
 [Window][Spritesheets]
-Pos=1452,40
-Size=458,346
+Pos=1289,40
+Size=303,265
 Collapsed=0
 DockId=0x00000009,0
 
 [Window][Animation Preview]
-Pos=49,40
-Size=974,654
+Pos=48,40
+Size=907,516
 Collapsed=0
 DockId=0x0000000C,0
 
 [Window][Spritesheet Editor]
-Pos=49,40
-Size=974,654
+Pos=48,40
+Size=907,516
 Collapsed=0
 DockId=0x0000000C,1
 
 [Window][Timeline]
-Pos=8,696
-Size=1902,360
+Pos=8,558
+Size=1584,334
 Collapsed=0
 DockId=0x00000004,0
 
 [Window][Frame Properties]
-Pos=1025,40
-Size=425,306
+Pos=957,40
+Size=330,222
 Collapsed=0
 DockId=0x00000007,0
 
+[Window][Onionskin]
+Pos=957,264
+Size=330,292
+Collapsed=0
+DockId=0x00000008,3
+
+[Window][Layers]
+Pos=957,264
+Size=330,292
+Collapsed=0
+DockId=0x00000008,0
+
+[Window][Nulls]
+Pos=957,264
+Size=330,292
+Collapsed=0
+DockId=0x00000008,1
+
+
 [Docking][Data]
-DockSpace         ID=0xFC02A410 Window=0x0E46F4F7 Pos=8,40 Size=1902,1016 Split=Y
-  DockNode        ID=0x00000003 Parent=0xFC02A410 SizeRef=1902,654 Split=X
-    DockNode      ID=0x00000001 Parent=0x00000003 SizeRef=1442,1016 Split=X Selected=0x024430EF
-      DockNode    ID=0x00000005 Parent=0x00000001 SizeRef=1015,654 Split=X Selected=0x024430EF
-        DockNode  ID=0x0000000B Parent=0x00000005 SizeRef=39,654 Selected=0x18A5FDB9
-        DockNode  ID=0x0000000C Parent=0x00000005 SizeRef=974,654 CentralNode=1 Selected=0x024430EF
-      DockNode    ID=0x00000006 Parent=0x00000001 SizeRef=425,654 Split=Y Selected=0x754E368F
-        DockNode  ID=0x00000007 Parent=0x00000006 SizeRef=631,306 Selected=0x754E368F
-        DockNode  ID=0x00000008 Parent=0x00000006 SizeRef=631,346 Selected=0x8A65D963
-    DockNode      ID=0x00000002 Parent=0x00000003 SizeRef=458,1016 Split=Y Selected=0x4EFD0020
-      DockNode    ID=0x00000009 Parent=0x00000002 SizeRef=634,346 Selected=0x4EFD0020
-      DockNode    ID=0x0000000A Parent=0x00000002 SizeRef=634,306 Selected=0xC1986EE2
-  DockNode        ID=0x00000004 Parent=0xFC02A410 SizeRef=1902,360 Selected=0x4F89F0DC
+DockSpace         ID=0xFC02A410 Window=0x0E46F4F7 Pos=8,40 Size=1584,852 Split=Y
+  DockNode        ID=0x00000003 Parent=0xFC02A410 SizeRef=1902,680 Split=X
+    DockNode      ID=0x00000001 Parent=0x00000003 SizeRef=1017,1016 Split=X Selected=0x024430EF
+      DockNode    ID=0x00000005 Parent=0x00000001 SizeRef=1264,654 Split=X Selected=0x024430EF
+        DockNode  ID=0x0000000B Parent=0x00000005 SizeRef=38,654 Selected=0x18A5FDB9
+        DockNode  ID=0x0000000C Parent=0x00000005 SizeRef=1224,654 CentralNode=1 Selected=0x024430EF
+      DockNode    ID=0x00000006 Parent=0x00000001 SizeRef=330,654 Split=Y Selected=0x754E368F
+        DockNode  ID=0x00000007 Parent=0x00000006 SizeRef=631,293 Selected=0x754E368F
+        DockNode  ID=0x00000008 Parent=0x00000006 SizeRef=631,385 Selected=0xCD8384B1
+    DockNode      ID=0x00000002 Parent=0x00000003 SizeRef=303,1016 Split=Y Selected=0x4EFD0020
+      DockNode    ID=0x00000009 Parent=0x00000002 SizeRef=634,349 Selected=0x4EFD0020
+      DockNode    ID=0x0000000A Parent=0x00000002 SizeRef=634,329 Selected=0xC1986EE2
+  DockNode        ID=0x00000004 Parent=0xFC02A410 SizeRef=1902,334 Selected=0x4F89F0DC
+  
 )";
 
 void settings_save(Settings* self);

src/shader.cpp

@@ -47,5 +47,7 @@ bool shader_init(GLuint* self, const std::string& vertex, const std::string& fra
 
 void shader_free(GLuint* self)
 {
+	if (*self == GL_ID_NONE) return;
+	
 	glDeleteProgram(*self);
 }

src/state.cpp

@@ -22,17 +22,16 @@ static void _draw(State* self)
 	SDL_GL_SwapWindow(self->window);
 }
 
-void init(State* self)
+bool sdl_init(State* self, bool isTestMode = false)
 {
-	settings_init(&self->settings);
-
 	if (!SDL_Init(SDL_INIT_VIDEO))
 	{
 		log_error(std::format(STATE_SDL_INIT_ERROR, SDL_GetError()));
 		quit(self);
+		return false;
 	}
 
-	log_info(STATE_SDL_INIT_INFO);
+	if (!isTestMode) log_info(STATE_SDL_INIT_INFO);
 	
 	// Todo, when sdl3 mixer is released officially
 	/*
@@ -60,17 +59,39 @@ void init(State* self)
 		log_info(STATE_MIX_INIT_INFO);
 	*/
 
-	self->window = SDL_CreateWindow
-	(
-		WINDOW_TITLE, 
-		self->settings.windowSize.x, 
-		self->settings.windowSize.y, 
-		WINDOW_FLAGS
-	);
+
+	if (isTestMode)
+	{
+		self->window = SDL_CreateWindow
+		(
+			WINDOW_TITLE, 
+			WINDOW_TEST_MODE_SIZE.x, WINDOW_TEST_MODE_SIZE.y,
+			WINDOW_TEST_MODE_FLAGS
+		);
+	}
+	else
+	{
+		ivec2 windowSize = self->settings.windowSize;
+
+		// Fix for auto-fullscreen on Windows
+		if (SDL_DisplayID* displayIDs = SDL_GetDisplays(nullptr))
+			if (displayIDs[0])
+				if (const SDL_DisplayMode* displayMode = SDL_GetDesktopDisplayMode(displayIDs[0]))
+					if (windowSize.x == displayMode->w && windowSize.y == displayMode->h)
+						windowSize -= ivec2(1, 1);
+				
+		self->window = SDL_CreateWindow
+		(
+			WINDOW_TITLE, 
+			windowSize.x,
+			windowSize.y, 
+			WINDOW_FLAGS
+		);
+	}
 
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
-   	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
-   	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
+   	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, STATE_GL_VERSION_MAJOR);
+   	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, STATE_GL_VERSION_MINOR);
 
 	self->glContext = SDL_GL_CreateContext(self->window);
 	
@@ -78,17 +99,17 @@ void init(State* self)
 	{
 		log_error(std::format(STATE_GL_CONTEXT_INIT_ERROR, SDL_GetError()));
 		quit(self);
+		return false;
 	}
 
-	GLenum glewError = glewInit();
-
-	if (glewError != GLEW_OK)
+	if (!gladLoadGLLoader((GLADloadproc)SDL_GL_GetProcAddress)) 
 	{
-		log_error(std::format(STATE_GL_CONTEXT_INIT_ERROR, (const char*)glewGetErrorString(glewError)));
+		log_error(std::format(STATE_GLAD_INIT_ERROR));
 		quit(self);
+		return false;
 	}
 
-	log_info(std::format(STATE_GL_CONTEXT_INIT_INFO, (const char*)glGetString(GL_VERSION)));
+	if (!isTestMode) log_info(std::format(STATE_GL_CONTEXT_INIT_INFO, (const char*)glGetString(GL_VERSION)));
 	
 	window_vsync_set(self->settings.isVsync);
 	
@@ -98,7 +119,18 @@ void init(State* self)
 	glDisable(GL_MULTISAMPLE);
 	glDisable(GL_DEPTH_TEST);
 	glDisable(GL_LINE_SMOOTH);
-	
+
+	return true;
+}
+
+void init(State* self)
+{
+	log_info(STATE_INIT_INFO);
+
+	settings_init(&self->settings);
+
+	if (!sdl_init(self)) return;
+
 	if (!self->argument.empty())
 	{
 		anm2_deserialize(&self->anm2, self->argument);

src/state.h

@@ -2,13 +2,14 @@
 
 #include "imgui.h"
 
-#define STATE_INIT_INFO "Initializing..."
+#define STATE_INIT_INFO "Initializing anm2ed (Version 1.1)"
 #define STATE_SDL_INIT_ERROR "Failed to initialize SDL! {}"
 #define STATE_SDL_INIT_INFO "Initialized SDL"
 #define STATE_MIX_INIT_WARNING "Unable to initialize SDL_mixer! {}"
 #define STATE_MIX_AUDIO_DEVICE_INIT_WARNING "Unable to initialize audio device! {}"
 #define STATE_MIX_INIT_INFO "Initialized SDL_mixer"
 #define STATE_GL_CONTEXT_INIT_ERROR "Failed to initialize OpenGL context! {}"
+#define STATE_GLAD_INIT_ERROR "Failed to initialize GLAD!"
 #define STATE_GL_CONTEXT_INIT_INFO "Initialized OpenGL context (OpenGL {})"
 #define STATE_QUIT_INFO "Exiting..."
 #define STATE_GL_LINE_WIDTH 2.0f
@@ -23,6 +24,9 @@
 #define STATE_MIX_DEVICE NULL
 #define STATE_MIX_ALLOWED_CHANGES SDL_AUDIO_ALLOW_FORMAT_CHANGE
 
+#define STATE_GL_VERSION_MAJOR 3
+#define STATE_GL_VERSION_MINOR 3
+
 struct State
 {
 	SDL_Window* window;
@@ -47,6 +51,7 @@ struct State
 	bool isRunning = true;
 }; 
 
+bool sdl_init(State* self, bool isTestMode);
 void init(State* state);
 void loop(State* state);
 void quit(State* state);

src/texture.cpp

@@ -17,8 +17,7 @@
 
 static void _texture_gl_set(Texture* self, const u8* data)
 {
-	if (self->id == GL_ID_NONE) 
-		glGenTextures(1, &self->id);
+	if (self->id == GL_ID_NONE) glGenTextures(1, &self->id);
 	
 	glBindTexture(GL_TEXTURE_2D, self->id);
 	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, self->size.x, self->size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
@@ -35,6 +34,7 @@ std::vector<u8> texture_download(const Texture* self)
     
 	glBindTexture(GL_TEXTURE_2D, self->id);
 	glPixelStorei(GL_PACK_ALIGNMENT, 1);
+	glPixelStorei(GL_PACK_ROW_LENGTH, 0);
 	glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels.data());
  
 	return pixels;
@@ -42,16 +42,12 @@ std::vector<u8> texture_download(const Texture* self)
 
 bool texture_from_path_init(Texture* self, const std::string& path)
 {
-	u8* data = stbi_load(path.c_str(), &self->size.x, &self->size.y, &self->channels, TEXTURE_CHANNELS);
+	u8* data = stbi_load(path.c_str(), &self->size.x, &self->size.y, nullptr, TEXTURE_CHANNELS);
 	
 	if (!data)
 	{
-		data = stbi_load(path_canonical_resolve(path).c_str(), &self->size.x, &self->size.y, &self->channels, TEXTURE_CHANNELS);
-		if (!data)
-		{
-			log_error(std::format(TEXTURE_INIT_ERROR, path));
-			return false;
-		}
+		log_error(std::format(TEXTURE_INIT_ERROR, path));
+		return false;
 	}
 
 	self->isInvalid = false;
@@ -63,13 +59,12 @@ bool texture_from_path_init(Texture* self, const std::string& path)
 	return true;
 }
 
-bool texture_from_encoded_data_init(Texture* self, ivec2 size, s32 channels, const u8* data, u32 length)
+bool texture_from_encoded_data_init(Texture* self, ivec2 size, const u8* data, u32 length)
 {
 	*self = Texture{};
 	self->size = size;
-	self->channels = channels;
 
-	u8* textureData = stbi_load_from_memory(data, length, &self->size.x, &self->size.y, &self->channels, TEXTURE_CHANNELS);
+	u8* textureData = stbi_load_from_memory(data, length, &self->size.x, &self->size.y, nullptr, TEXTURE_CHANNELS);
 
 	if (!textureData) 
 	{
@@ -82,11 +77,11 @@ bool texture_from_encoded_data_init(Texture* self, ivec2 size, s32 channels, con
 	return true;
 }
 
-bool texture_from_rgba_init(Texture* self, ivec2 size, s32 channels, const u8* data)
+bool texture_from_rgba_init(Texture* self, ivec2 size, const u8* data)
 {
 	*self = Texture{};
 	self->size = size;
-	self->channels = channels;
+	self->isInvalid = false;
 
 	_texture_gl_set(self, data);
 
@@ -96,13 +91,8 @@ bool texture_from_rgba_init(Texture* self, ivec2 size, s32 channels, const u8* d
 bool texture_from_rgba_write(const std::string& path, const u8* data, ivec2 size)
 {
 	bool isSuccess = stbi_write_png(path.c_str(), size.x, size.y, TEXTURE_CHANNELS, data, size.x * TEXTURE_CHANNELS);
-	if (!isSuccess)
-	{
-		isSuccess = stbi_write_png(path_canonical_resolve(path).c_str(), size.x, size.y, TEXTURE_CHANNELS, data, size.x * TEXTURE_CHANNELS);
-		if (!isSuccess) log_info(std::format(TEXTURE_SAVE_ERROR, path));
-	}
-		
-	log_info(std::format(TEXTURE_SAVE_INFO, path));
+	if (!isSuccess) log_error(std::format(TEXTURE_SAVE_ERROR, path));
+	else log_info(std::format(TEXTURE_SAVE_INFO, path));
 		
 	return isSuccess;
 }
@@ -114,6 +104,8 @@ bool texture_from_gl_write(Texture* self, const std::string& path)
 
 void texture_free(Texture* self)
 {
+	if (self->isInvalid) return;
+
 	glDeleteTextures(1, &self->id);
 	*self = Texture{};
 }
@@ -134,4 +126,4 @@ bool texture_pixel_set(Texture* self, ivec2 position, vec4 color)
     glTexSubImage2D(GL_TEXTURE_2D, 0,position.x, position.y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, rgba8);
 
     return true;
-}
+}

src/texture.h

@@ -12,16 +12,16 @@ struct Texture
 {
     GLuint id = GL_ID_NONE;
     ivec2 size{};
-    s32 channels = TEXTURE_CHANNELS;
     bool isInvalid = true;
+
+    auto operator<=>(const Texture&) const = default;
 };
 
-bool texture_from_encoded_data_init(Texture* self, ivec2 size, s32 channels, const u8* data, u32 length);
+bool texture_from_encoded_data_init(Texture* self, ivec2 size, const u8* data, u32 length);
 bool texture_from_gl_write(Texture* self, const std::string& path);
 bool texture_from_path_init(Texture* self, const std::string& path);
-bool texture_from_rgba_init(Texture* self, ivec2 size, s32 channels, const u8* data);
+bool texture_from_rgba_init(Texture* self, ivec2 size, const u8* data);
 bool texture_from_rgba_write(const std::string& path, const u8* data, ivec2 size);
 bool texture_pixel_set(Texture* self, ivec2 position, vec4 color);
 void texture_free(Texture* self);
-std::vector<u8> texture_download(const Texture* self);
-Texture texture_copy(Texture* self);
+std::vector<u8> texture_download(const Texture* self);

src/window.h

@@ -5,6 +5,9 @@
 #define WINDOW_TITLE "Anm2Ed"
 #define WINDOW_TITLE_FORMAT "Anm2Ed ({})"
 #define WINDOW_FLAGS SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL
+#define WINDOW_TEST_MODE_FLAGS WINDOW_FLAGS | SDL_WINDOW_HIDDEN
+
+static const ivec2 WINDOW_TEST_MODE_SIZE = {1, 1};
 
 void window_title_from_path_set(SDL_Window* self, const std::string& path);
 bool window_color_from_position_get(SDL_Window* self, vec2 position, vec4* color);

vcpkg.json

@@ -1,6 +1,5 @@
 {
   "dependencies": [
-    "sdl3",
-    "glew"
+    "sdl3"
   ]
 }

workshop/metadata.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<metadata>
+    <name>Anm2Ed (Animation Editor)</name>
+    <directory>anm2ed</directory>
+    <id>3567731616</id>
+    <description>
+[h1]NOTE: THIS IS NOT A MOD! SUBSCRIBING TO THIS ISN'T NECESSARY (though it's appreciated)! It's recommended you head to the download page below![/h1]
+
+[h2]Anm2Ed[/h2]
+
+[img]https://files.catbox.moe/3bj6za.png[/img]
+
+A reimplementation of [i]The Binding of Isaac: Rebirth[/i]'s proprietary animation editor. Manipulates the XML-based &quot;.anm2&quot; format, used for in-game tweened animations.
+
+[h2]Features[/h2]
+[list]
+[*] Extended version of the original proprietary Nicalis animation editor
+[*] Smooth [url=https://github.com/ocornut/imgui]Dear ImGui[/url] interface; docking, dragging and dropping, etc. You might be familiar with it from [url=https://steamcommunity.com/sharedfiles/filedetails/?id=3127536138]Repentogon[/url].
+[*] New to this editor:
+[list]
+[*] Can output .webm. .mp4 or *.png sequence (with FFmpeg)
+[*] Cutting, copying and pasting frames/animations
+[*] Additional wizard options
+[*] Robust snapshot (undo/redo) system
+[*] Additional hotkeys/shortcuts (rebindable!)
+[*] Onionskinning
+[*] Settings that will preserve on exit (stored in %APPDATA% on Windows or ~/.local/share on Linux)
+[/list]
+[/list]
+
+[h3]Note: Difference from Nicalis editor[/h3]
+Layers/nulls are handled differently (in their own window) and are not on the timeline! Add a layer/null in the Layers/Nulls window, and then add a LayerAnimation/NullAnimation in the timeline!
+
+[h3]Note on Rendering Animations[/h3]
+You will need FFmpeg installed! Get it from [url=https://ffmpeg.org/download.html]here[/url] and point to the downloaded ffmpeg executable within the program!
+
+[h2]Download (Windows)[/h2]
+https://github.com/ShweetsStuff/anm2ed/releases
+Extract with 7z and run .exe. Check that you have the latest [url=https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170]Microsoft C++ redistributable[/url] (if you play a lot of games on Steam, you likely will have it).
+
+Alternatively, if you have subscribed to the mod, you can find the latest release inside the &quot;resources&quot; folder. Once downloaded, you can put it wherever you want.
+
+[h3]Happy animating![/h3]
+[img]https://files.catbox.moe/4auc1c.gif[/img]
+</description>
+    <version>1.1</version>
+    <visibility>Public</visibility>
+</metadata>