add much-needed optimizations and enhance the snake example game

2026-10-05 03:45:46 +02:00
parent e72588f792
commit 78ae90391a
7 changed files with 295 additions and 32 deletions
@@ -41,6 +41,8 @@ typedef struct {
 	uint32_t framebuffer[WINDOW_WIDTH * WINDOW_HEIGHT];
 	SDL_Event event;
 	bool is_running;
+	bool framebuffer_dirty;
+	SDL_Rect dirty_rect;
 	uint16_t width, height;
 } game_state_t;

@@ -88,6 +90,12 @@ clear_framebuffer(
 	uint32_t color
 );

+void
+clear_rect(int x, int y, int w, int h, uint32_t color);
+
+void
+mark_dirty_rect(int x, int y, int w, int h);
+
 void
 put_char(
 	char c,