void loading_world_scene_init()
{

}

u64 load_start_stamp = 0;

static void* start_loading_world_t(void* arg)
{
	load_start_stamp = platform_get_time(TIME_FULL, TIME_US); // Used for displaying info texts.
	#ifdef MODE_DEBUG
	// thread_sleep(1000*200);
	#endif

	char* path = (char*)arg;
	world* world_to_load = 0;

	if (path) {
		// Load from file here
	}
	else {
		world_to_load = world_create_new();
	}

	#ifdef MODE_DEBUG
	u64 load_end_stamp = platform_get_time(TIME_FULL, TIME_US);
	u64 elapsed_ns = load_end_stamp - load_start_stamp;
	char info_msg[50];
	sprintf(info_msg, "Loaded world in %.2fms", elapsed_ns/1000.0f);
	log_info(info_msg);
	#endif

	if (!world_to_load) {
		log_info("Failed to load world");
		game_set_active_scene(GAME_STATE_ERROR);
	}
	else {
		world_map_set_active_world(world_to_load);
		game_set_active_scene(GAME_STATE_WORLD_MAP);
	}

	return 0;
}

void start_loading_world(char* saved_file_path)
{
	game_set_active_scene(GAME_STATE_LOADING_WORLD);
	thread_start(start_loading_world_t, saved_file_path);
}

static void loading_world_draw_info_texts(font* font, s32 center_x, s32 y)
{
	char* texts[5] = {
		"(Building cities)",
		"(Connecting roads)",
		"(Manufacturing trucks)",
		"(Finding truck drivers)",
		"(This is taking very long..)",
	};

	u64 load_end_stamp = platform_get_time(TIME_FULL, TIME_US);
	u64 elapsed_ns = load_end_stamp - load_start_stamp;
	float elapsed_sec = elapsed_ns / 1000.0f;
	int text_index = elapsed_sec / 2000.0f; // 2 sec per text.
	if (text_index >= 5) text_index = 4;

	s32 text_len = renderer->calculate_text_width(font, texts[text_index]);
	renderer->render_text(font, center_x - (text_len/2), y, texts[text_index], COLOR_TEXT);
}

static void loading_world_draw_animation(platform_window* window)
{
	s32 screen_center_x = area.x + (area.w/2);
	s32 screen_center_y = area.y + (area.h/2);

	float vertical_pad = 20 * scale;
	float horizontal_pad = vertical_pad;
	float spacing = 5 * scale;

	s32 panel_h = 280 * scale;
	s32 panel_item_size = (panel_h - (vertical_pad*2) - (spacing*1)) / 2;
	s32 panel_w = (panel_item_size * 3) + (horizontal_pad*2) + (spacing*2);

	s32 panel_x = screen_center_x - (panel_w/2);
	s32 panel_y = screen_center_y - (panel_h/2);
	panel_render(scale, panel_x, panel_y, panel_w, panel_h);

	s32 carwheel_size = panel_h/4;

	static float rotation = 0.0f;
	rotation -= 0.05f;
	gl_render_set_rotation(rotation);
	renderer->render_image(img_carwheel, screen_center_x - (carwheel_size/2), screen_center_y - (carwheel_size/2), carwheel_size, carwheel_size);
	gl_render_set_rotation(0.0f);


	font* font_info = FONT_REGULAR(SIZE_RD(area.w, 28));
	loading_world_draw_info_texts(font_info, screen_center_x, panel_y + panel_h - font_info->px_h - vertical_pad*2);
}

void loading_world_scene_render(platform_window* window)
{
	menu_draw_background(window);
	loading_world_draw_animation(window);
}

void loading_world_scene_update(platform_window* window)
{

}

void loading_world_scene_destroy()
{

}