first commit

src/main.cpp

@@ -0,0 +1,128 @@
+#include "main.h"
+
+static void _init(State* state);
+static void _draw(State* state);
+static void _loop(State* state);
+static void _quit(State* state);
+static void _tick(State* state);
+
+static void
+_init(State* state)
+{
+	Shader shader;
+
+	printf(STRING_INFO_INIT);
+
+	if (!SDL_Init(SDL_INIT_VIDEO))
+	{
+		printf(STRING_ERROR_SDL_INIT, SDL_GetError());
+		_quit(state);
+	}
+
+	printf(STRING_INFO_SDL_INIT);
+
+	SDL_CreateWindowAndRenderer
+	(
+		STRING_WINDOW_TITLE, 
+		WINDOW_WIDTH, 
+		WINDOW_HEIGHT, 
+		WINDOW_FLAGS, 
+		&state->window, 
+		&state->renderer
+	);
+
+	state->glContext = SDL_GL_CreateContext(state->window);
+	
+	if (!state->glContext)
+	{
+		printf(STRING_ERROR_GL_CONTEXT_INIT, SDL_GetError());
+		_quit(state);
+	}
+
+	glewInit();
+
+	printf(STRING_INFO_GLEW_INIT);
+
+	shader_init(&shader, RESOURCE_SHADER_VERTEX_TEXTURE_QUAD, RESOURCE_SHADER_FRAGMENT_TEXTURE_QUAD);
+
+	imgui_init(state->window, state->glContext);
+
+	Anm2 anm2;
+
+	anm2_init(&anm2, "res/anm2/005.031_key.anm2");
+}
+
+void
+_loop(State* state)
+{
+	state->tick = SDL_GetTicks();
+	
+	while (state->tick > state->lastTick + TICK_DELAY)
+	{
+		state->tick = SDL_GetTicks();
+		
+		if (state->tick - state->lastTick < TICK_DELAY)
+            		SDL_Delay(TICK_DELAY - (state->tick - state->lastTick));
+
+		_tick(state);
+
+		imgui_tick(state);
+
+		_draw(state);
+
+		state->lastTick = state->tick;
+	}
+}
+
+void
+_tick(State* state)
+{
+	SDL_Event event;
+
+	while(SDL_PollEvent(&event))
+	{
+    		ImGui_ImplSDL3_ProcessEvent(&event);
+		
+		if (event.type == SDL_EVENT_QUIT)
+			state->isRunning = false;
+	}
+}
+
+void 
+_draw(State* state)
+{
+	glClearColor(state->clearColor.x, state->clearColor.y, state->clearColor.z, 1.0);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	imgui_draw();
+
+	SDL_GL_SwapWindow(state->window);
+}
+
+void
+_quit(State* state)
+{
+	imgui_free();
+
+	SDL_GL_DestroyContext(state->glContext);
+	SDL_Quit();
+
+	printf(STRING_INFO_SDL_QUIT);
+
+	printf(STRING_INFO_QUIT);
+}
+
+s32
+main(s32 argc, char* argv[])
+{
+	State state;
+
+	_init(&state);
+
+	while (state.isRunning)
+		_loop(&state);
+
+	_quit(&state);
+
+	return EXIT_SUCCESS;
+}