ecs updates, still no compile

src/COMMON.h

@@ -3,8 +3,8 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <string.h>
 
-#include <stb_ds.h>
 #include <cglm/cglm.h>
 
 typedef uint8_t u8;

src/engine/renderer.c

@@ -13,6 +13,11 @@ _renderer_viewport_set(Renderer* self, ivec4 viewport)
 void
 renderer_init(Renderer* self, Window* window, CameraType type)
 {
+	ivec2 windowSize;
+	vec2 size;
+
+	window_size_get(window, windowSize);
+
 	self->window = window;
 
 	self->glContext = SDL_GL_CreateContext(self->window->sdl);
@@ -23,10 +28,13 @@ renderer_init(Renderer* self, Window* window, CameraType type)
 	vbo_init(&self->vbo, GL_ARRAY_BUFFER, true);
 	vbo_init(&self->ebo, GL_ELEMENT_ARRAY_BUFFER, true);
 
+	size[0] = (f32)windowSize[0];
+	size[1] = (f32)windowSize[1];
+
 	switch (type)
 	{
 		case CAMERA_ORTHOGRAPHIC:
-			camera_orthographic_init(&self->camera, self->window->size);
+			camera_orthographic_init(&self->camera, size);
 			break;
 		default:
 			break;

src/engine/renderer.h

@@ -16,7 +16,7 @@ typedef struct Renderer
 	VAO vao;	// Vertex Array Object
 } Renderer;
 
-void renderer_init(Renderer* self, Window* window);
+void renderer_init(Renderer* self, Window* window, CameraType type);
 void renderer_viewport_window_set(Renderer* self);
 void renderer_clear_color_set(Renderer* self, vec4 color);
 void renderer_clear(Renderer* self);

src/engine/vector.c

@@ -0,0 +1,186 @@
+#include "vector.h"
+
+static void _vector_realloc(Vector* self);
+
+/* Reallocates the vector to a specified size. */
+static void
+_vector_realloc(Vector* self)
+{
+	if (self->count == 0)
+	{
+		self->data = NULL;
+		return;
+	}
+
+	self->data = realloc(self->data, vector_size_get(self));
+}
+
+/* Pushes all elements past an index forward (<-). */
+static void
+vector_forward(Vector* self, s32 index)
+{
+	s32 length;
+
+	length = ((self->count - 1) - index);
+
+	for (s32 i = 0; i < length; i++)
+	{
+		size_t* data;
+		size_t* nextData;
+		s32 currentIndex;
+
+		currentIndex = index + i;
+
+		data = (size_t*)self->data + (currentIndex * self->itemSize);
+		nextData = data + self->itemSize;
+
+		memcpy((void*)data, (void*)nextData, self->itemSize);
+	}
+
+}
+
+/* Pushes all elements past an index backward (->).*/
+static void
+vector_backward(Vector* self, s32 index)
+{
+	s32 length;
+
+	length = ((self->count - 1) - index);
+
+	for (s32 i = 0; i < length; i++)
+	{
+		size_t* data;
+		size_t* prevData;
+		s32 index;
+
+		index = (self->count - 1) - i;
+
+		data = (size_t*)self->data + (index * self->itemSize);
+		prevData = (size_t*)data - self->itemSize;
+
+		memcpy((void*)data, (void*)prevData, self->itemSize);
+	}
+}
+
+/* Returns total size of vector. */
+size_t
+vector_size_get(Vector* self)
+{
+	return self->count * self->itemSize;
+}
+
+/* Initializes a vector, given a size of an element. */
+void
+vector_init(Vector* self, size_t size)
+{
+	memset(self, '\0', sizeof(Vector));
+
+	self->itemSize = size;
+	self->count = 0;
+
+	_vector_realloc(self);
+
+	memset(self->data, '\0', vector_size_get(self));
+}
+
+/* Frees a vector. */
+void
+vector_free(Vector* self)
+{
+	if (self->data)
+		free(self->data);
+
+	self->count = 0;
+}
+
+/* Adds an element to the end of the vector. */
+void* 
+vector_push(Vector* self, void* data)
+{
+	size_t* pointer;
+
+	self->count++;
+
+	_vector_realloc(self);
+
+	pointer = (size_t*)self->data + (vector_size_get(self) - self->itemSize);
+
+	if (data)
+		memcpy((void*)pointer, data, self->itemSize);
+	else
+		memset((void*)pointer, '\0', self->itemSize);
+
+	return pointer;
+}
+
+/* Removes the last element of the vector. */
+void
+vector_pop(Vector* self)
+{
+	self->count--;
+
+	_vector_realloc(self);
+}
+
+/* Removes all elements of a vector (but does not dealloc the data). */
+void
+vector_clear(Vector* self)
+{
+	self->count = 0;
+
+	_vector_realloc(self);
+}
+
+/* Inserts an element at the specified index, putting successive elements back. */
+void*
+vector_insert(Vector* self, void* data, s32 index)
+{
+	size_t* pointer;
+
+	self->count++;
+
+	_vector_realloc(self);
+
+	vector_backward(self, index);
+
+	pointer = (size_t*)self->data + (index * self->itemSize);
+
+	memcpy((void*)pointer, data, self->itemSize);
+
+	return pointer;
+}
+
+/* Removes an element in a vector at the specified index, bringing successive elements forward. */
+void 
+vector_remove(Vector* self, s32 index)
+{
+	vector_forward(self, index);
+
+	vector_pop(self);
+}
+
+/* Returns the address of the element at the specified index. */
+void*
+vector_get(Vector* self, s32 index)
+{
+	return (void*)((size_t*)self->data + (index * self->itemSize));
+}
+
+/* Returns the index of an element, given it is valid. */
+s32
+vector_index_get(Vector* self, void* data)
+{
+	s32 index;
+
+	index = ((size_t*)data - (size_t*)self->data) / self->itemSize;
+
+	return index;
+}
+
+/* Removes an element within a vector, given its data, provided it is valid. */
+void
+vector_remove_from_data(Vector* self, void* data)
+{
+	vector_remove(self, vector_index_get(self, data));
+	data = NULL;
+}

src/engine/vector.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "../COMMON.h"
+
+typedef struct Vector
+{
+	u32 count;
+	u32 limit;
+	size_t itemSize;
+	void* data;
+} Vector;
+
+s32 vector_index_get(Vector* self, void* data);
+size_t vector_size_get(Vector* self);
+void vector_free(Vector* self);
+void vector_init(Vector* self, size_t size);
+void vector_pop(Vector* self);
+void vector_remove(Vector* self, s32 index);
+void vector_clear(Vector* self);
+void vector_remove_from_data(Vector* self, void* data);
+void* vector_get(Vector* self, s32 index);
+void* vector_insert(Vector* self, void* data, s32 index);
+void* vector_push(Vector* self, void* data);
+void vector_print(Vector* self);

src/game/ecs/ECS_COMMON.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "../../COMMON.h"
+#include "../../engine/vector.h"
 
 #define ECS_FUNCTION_COUNT ECS_FUNCTION_DRAW + 1
 typedef enum ECSFunctionType
@@ -17,11 +17,11 @@ typedef enum ECSComponentType
 	ECS_COMPONENT_SPRITE
 } ECSComponentType;
 
-typedef struct ECS;
-typedef struct Game;
+typedef struct ECS ECS;
+typedef struct Game Game;
 
-typedef void (*ECSRegister)(ECS);
-typedef void (*ECSFunction)(ECS, void*);
+typedef void (*ECSRegister)(ECS*);
+typedef void (*ECSFunction)(void*, ECS*);
 
 typedef struct ECSsystem
 {
@@ -33,14 +33,15 @@ typedef struct ECSComponentInfo
 	ECSSystem system;
 	ECSComponentType type;
 	size_t size;
-};
+} ECSComponentInfo;
 
 typedef struct ECSComponentList
 {
-	ECSSustem system;
+	ECS* ecs;
+	ECSSystem system;
 	ECSComponentType type;
-	void* components; /* dynamic array */
-};
+	Vector components; /* whatever type is being used */
+} ECSComponentList;
 
 typedef struct ECS
 {

src/game/ecs/component/component_sprite.c

@@ -1,10 +1,51 @@
 #include "component_sprite.h"
 
+static void _tick(ComponentSprite* self, ECS* ecs);
+static void _draw(ComponentSprite* self, ECS* ecs);
+
+const ECSComponentInfo COMPONENT_SPRITE_INFO = 
+{
+	.system = 
+	{
+		.functions = 
+		{ 
+			NULL, 
+			NULL, 
+			(ECSFunction)_tick, 
+			(ECSFunction)_draw
+		}
+	},
+	.type = ECS_COMPONENT_SPRITE,
+	.size = sizeof(ComponentSprite)
+};
+
+/* Ticks sprite component. */
+static void
+_tick(ComponentSprite* self, ECS* ecs)
+{
+
+
+
+
+
+}
+
+/* Draws sprite component. */
+static void
+_draw(ComponentSprite* self, ECS* ecs)
+{
+
+
+
+
+
+}
+
 /* Initializes sprite component. */
 void
 component_sprite_init
 (
-
+	ComponentSprite* self
 
 
 
@@ -22,26 +63,4 @@ component_sprite_init
 
 
 
-}
-
-/* Ticks sprite component. */
-void
-component_sprite_tick(ComponentSprite* self, ECS* ecs)
-{
-
-
-
-
-
-}
-
-/* Draws sprite component. */
-void
-component_sprite_draw(ComponentSprite* self, ECS* ecs)
-{
-
-
-
-
-
 }

src/game/ecs/component/component_sprite.h

@@ -2,6 +2,8 @@
 
 #include "../../GAME_COMMON.h"
 
+extern ECSComponentInfo COMPONENT_SPRITE_INFO;
+
 typedef struct ComponentSprite
 {
 	u32 id;
@@ -13,12 +15,4 @@ typedef struct ComponentSprite
 	f32 rotation;
 } ComponentSprite;
 
-static const ECSComponentInfo COMPONENT_SPRITE_INFO = 
-{
-	.system = 
-	{
-		.functions = { NULL, NULL, NULL, NULL}
-	},
-	.type = ECS_COMPONENT_SPRITE,
-	.size = sizeof(ComponentSprite)
-};
+void component_sprite_init(ComponentSprite* self);

src/game/ecs/ecs.c

@@ -9,15 +9,11 @@ _ecs_function(ECS* self, ECSFunctionType type)
 {
 	for (s32 i = 0; i < ECS_COMPONENT_COUNT; i++)
 	{
-		ECSFunction function;
-		struct ECSComponentList* list;
+		ECSComponentList* list;
 
-		list = &game.ecs.lists[i];
+		list = &self->lists[i];
 
-		function = list->system.functions[type];
-
-		if (function)
-			ecs_component_function(list, function);
+		ecs_component_list_function(list, type);
 	}
 }
 
@@ -40,11 +36,25 @@ void
 ecs_init(ECS* self, Game* game)
 {
 	self->game = game;
+
+	for (s32 i = 0 ; i < ECS_COMPONENT_COUNT; i++)
+		ecs_component_list_init(&self->lists[i], self, ECS_COMPONENT_INFO[i]);
+}
+
+/* Clears ECS. */
+void
+ecs_clear(ECS* self)
+{
+	for (s32 i = 0 ; i < ECS_COMPONENT_COUNT; i++)
+		ecs_component_list_clear(&self->lists[i]);
 }
 
 /* Frees ECS. */
 void
 ecs_free(ECS* self)
 {
+	for (s32 i = 0 ; i < ECS_COMPONENT_COUNT; i++)
+		ecs_component_list_free(&self->lists[i]);
 
+	memset(self, '\0', sizeof(ECS));
 }

src/game/ecs/ecs.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "ecs_component_list.h"
+#include "component/component_sprite.h"
+
+static const ECSComponentInfo ECS_COMPONENT_INFO[ECS_COMPONENT_COUNT] = 
+{
+	COMPONENT_SPRITE_INFO
+};
+
+void ecs_tick(ECS* self);
+void ecs_draw(ECS* self);
+void ecs_init(ECS* self, Game* game);
+void ecs_clear(ECS* self);
+void ecs_free(ECS* self);

src/game/ecs/ecs_component.c

@@ -1,10 +0,0 @@
-#include "ecs_component.h"
-
-/* Executes a function on a component. */
-void
-ecs_component_function(ECSComponentList* self, ECSFunction function)
-{
-
-
-
-}

src/game/ecs/ecs_component_list.c

@@ -0,0 +1,42 @@
+#include "ecs_component_list.h"
+
+/* From ECSComponentInfo, initialize a component list. */
+void
+ecs_component_list_init(ECSComponentList* self, ECS* ecs, ECSComponentInfo info)
+{
+	self->ecs = ecs;
+	self->type = info.type;
+	self->system = info.system;
+	vector_init(&self->vector, info.size);
+}
+
+/* Executes a function on a component list. */
+/* Exits if component list has a NULL function. */
+void
+ecs_component_list_function(ECSComponentList* self, ECSFunctionType type)
+{
+	ECSFunction function;
+
+	function = self->system.functions[type];
+
+	if (!function)
+		return;
+
+	for (s32 i = 0; i < self->components.count; i++)
+		function(vector_get(i), self->ecs);
+}
+
+/* Clears all elements in a component list. */
+void
+ecs_component_list_clear(ECSComponentList* self)
+{
+	vector_clear(&self->components);
+}
+
+/* Frees a component list. */
+void
+ecs_component_list_free(ECSComponentList* self)
+{
+	vector_free(&self->components);
+	memset(self, '\0', sizeof(ECSComponentList));
+}

src/game/ecs/ecs_component_list.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "ECS_COMMON.h"
+
+void ecs_component_list_init(ECSComponentList* self, ECS* ecs, ECSComponentInfo info);
+void ecs_component_list_function(ECSComponentList* self, ECSFunctionType type);
+void ecs_component_list_clear(ECSComponentList* self);
+void ecs_component_list_free(ECSComponentList* self);