1 files changed, 96 insertions, 29 deletions

diff --git a/src/main.c b/src/main.c
index 4ba34e5..ce01357 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,51 +1,118 @@
 #include <GLFW/glfw3.h>
+#include <threads.h>
 
 #include "voxel.h"
 #include "window.h"
-#include "shader.h"
-#include "mesh.h"
 
-int main(void)
+World world;
+Camera camera;
+
+void sleep(double seconds)
+{
+	struct timespec req, rem;
+	req.tv_sec = seconds;
+	req.tv_nsec = 0;
+
+	if (seconds < 0)
+		return;
+
+	while (thrd_sleep(&req, &rem) == thrd_error)
+		req = rem;
+}
+
+/// handles rendering
+VOXEL_RESULT render_main(void *)
+{
+	Renderer renderer;
+
+	if (window_init_gl() != VOXEL_OK)
+		return VOXEL_ERROR;
+
+	if (renderer_init(&renderer) != VOXEL_OK)
+		return VOXEL_ERROR;
+
+	while (!window_closed()) {
+		if (window.resize) {
+			glViewport(0, 0, window.width, window.height);
+			window.resize = false;
+		}
+
+		renderer_start(&renderer, &camera);
+		world_render(&world, &renderer);
+		renderer_stop(&renderer);
+
+		window_swap();
+	}
+
+	renderer_free(&renderer);
+	return VOXEL_OK;
+}
+
+#define TPS 20
+
+/// handles game logic
+VOXEL_RESULT logic_main(void *)
 {
-	Shader *shader;
-	Chunk *chunk;
-	Mesh mesh;
-	Camera camera;
-	mat4 proj_view;
+	double last_tick, next_tick;
+	last_tick = 0;
+	next_tick = 0;
 
-	if (window_init())
-		return 1;
+	while (!window_closed()) {
+		world_update(&world, &camera);
 
-	shader = shader_init("assets/vertex.glsl", "assets/fragment.glsl");
-	if (!shader)
-		return 1;
+		next_tick = last_tick + (1.0 / TPS);
+		sleep(next_tick - last_tick);
+		last_tick = next_tick;
+	}
 
-	chunk = chunk_init(0, 0, 0);
-	chunk_generate(chunk);
-	mesh = chunk_mesh(chunk);
+	return VOXEL_OK;
+}
 
-	camera = camera_init();
+/// handles user input
+VOXEL_RESULT input_main(void *)
+{
+	double last_tick, next_tick;
+	last_tick = 0;
+	next_tick = 0;
 
 	while (!window_closed()) {
 		window_update();
 
-		if (key_down(GLFW_KEY_ESCAPE))
+		if (key_down(GLFW_KEY_ESCAPE)) {
+			window.close = true;
 			break;
+		}
 
 		camera_update(&camera);
-		camera_proj_view(&camera, proj_view);
-
-		shader_bind(shader);
-		shader_load_mat4(0, proj_view);
-		mesh_bind(&mesh);
-		mesh_draw(&mesh);
-		mesh_unbind(&mesh);
-		shader_unbind();
 
-		// main game loop
-		window_swap();
+		next_tick = last_tick + (1.0 / TPS);
+		sleep(next_tick - last_tick);
+		last_tick = next_tick;
 	}
 
+	return VOXEL_OK;
+}
+
+VOXEL_RESULT main(void)
+{
+	thrd_t render_thread, logic_thread, input_thread;
+
+	if (window_init() != VOXEL_OK)
+		return VOXEL_ERROR;
+
+	camera_init(&camera);
+	world_init(&world, 0);
+
+	thrd_create(&logic_thread, logic_main, NULL);
+	thrd_create(&input_thread, input_main, NULL);
+	thrd_create(&render_thread, render_main, NULL);
+
+	thrd_join(logic_thread, NULL);
+	thrd_join(input_thread, NULL);
+	thrd_join(render_thread, NULL);
+
+	world_free(&world);
 	window_close();
-	return 0;
+
+	return VOXEL_OK;
 }