Make pools with generations and bind mouse position logic

include/window/window.h

@@ -48,6 +48,7 @@ struct Event {
     KEY_DOWN,
     TEXT_INPUT,
     SCROLL,
+    MOUSE_LEAVE,
     MOUSE_BUTTON_UP,
     MOUSE_BUTTON_DOWN,
     MOUSE_MOVE
@@ -80,13 +81,13 @@ struct Event {
 };
 
 struct Animation {
-  std::vector<int> frames;
+  std::vector<uint64_t> frames;
   float frame_rate;
   bool loop;
   int reference_count = 0;
 
   ~Animation() {
-    for (int frame_id : frames)
+    for (uint64_t frame_id : frames)
       image_pool.release(frame_id);
   }
 };
@@ -103,18 +104,18 @@ public:
   ~Window();
 
   // Rendering functions
-  int load_image(const char *path, float alpha = 1.0f, bool pixel_art = false);
-  Vec2<float> get_image_size(int image_id);
+  uint64_t load_image(const char *path, float alpha = 1.0f, bool pixel_art = false);
+  Vec2<float> get_image_size(uint64_t image_id);
 
-  int load_font(const char *path, int font_size, bool bold = false, bool italic = false, bool underline = false, bool pixel_art = false);
+  uint64_t load_font(const char *path, int font_size, bool bold = false, bool italic = false, bool underline = false, bool pixel_art = false);
 
   // text is copied internally, so it can be free'd by the caller after the text is created.
-  int create_text(int font_id, const char *text, uint32_t length, Color color);
-  Vec2<float> get_text_size(int text_id);
+  uint64_t create_text(uint64_t font_id, const char *text, uint32_t length, Color color);
+  Vec2<float> get_text_size(uint64_t text_id);
 
-  bool write(int text_id, Vec2<float> position, float z, float angle = 0.0f, Vec2<float> scale = {1.0f, 1.0f});
+  bool write(uint64_t text_id, Vec2<float> position, float z, float angle = 0.0f, Vec2<float> scale = {1.0f, 1.0f});
 
-  bool draw(int image_id, Vec2<float> position, float z, float angle = 0.0f, Vec2<float> scale = {1.0f, 1.0f});
+  bool draw(uint64_t image_id, Vec2<float> position, float z, float angle = 0.0f, Vec2<float> scale = {1.0f, 1.0f});
 
   bool draw_rect(Rect rect, Color color, float z, float angle = 0.0f);
 
@@ -172,12 +173,12 @@ private:
 
     union {
       struct {
-        int image_id;
+        uint64_t image_id;
         Vec2<float> position;
       } draw_image;
 
       struct {
-        int text_id;
+        uint64_t text_id;
         Vec2<float> position;
       } draw_text;