The menu is working but it's a bit wonky still.

Starting the game seems to cause some missbehaviour.

src/gamestate.h

@@ -5,7 +5,8 @@ typedef enum GameState_t {
 	MENU,
 	PLAYING,
 	IN_GAME_MENU,
-	GAME_OVER
+	GAME_OVER,
+	QUIT
 } GameState;
 
 #endif // GAMESTATE_H_

src/gui_button.c

@@ -29,8 +29,12 @@ gui_button_handle_event(GuiButton *button, SDL_Event *event)
 		if (event->button.button != SDL_BUTTON_LEFT)
 			return;
 
-		if (button->hover)
+		if (button->hover && button->event)
 			button->event(button->usrdata);
+
+	} else if (event->type == SDL_MOUSEMOTION) {
+		Position p = { event->motion.x, event->motion.y };
+		button->hover = position_in_rect(&p, &button->area);
 	}
 }
 

src/main.c

@@ -38,6 +38,8 @@ static SDL_Rect		gameViewport;
 static SDL_Rect		bottomGuiViewport;
 static SDL_Rect		rightGuiViewport;
 
+static void resetGame(void);
+
 static
 bool initSDL(void)
 {
@@ -131,6 +133,21 @@ initGame(void)
 	return true;
 }
 
+static void
+startGame(void *unused)
+{
+	UNUSED(unused);
+	gGameState = PLAYING;
+	resetGame();
+}
+
+static void
+exitGame(void *unused)
+{
+	UNUSED(unused);
+	gGameState = QUIT;
+}
+
 static void
 initMainMenu(void)
 {
@@ -139,11 +156,11 @@ initMainMenu(void)
 
 	struct MENU_ITEM {
 		char label[20];
-		void (*callback)(void);
+		void (*callback)(void*);
 	};
 	struct MENU_ITEM menu_items[] = {
-		{ "PLAY", NULL },
-		{ "QUIT", NULL },
+		{ "PLAY", startGame },
+		{ "QUIT", exitGame },
 	};
 
 	mainMenu = menu_create();
@@ -163,7 +180,7 @@ initMainMenu(void)
 		s2->pos = (Position) { 200, 100 + (i*50) };
 		s2->fixed = true;
 
-		menu_item_add(mainMenu, s1, s2);
+		menu_item_add(mainMenu, s1, s2, menu_items[i].callback);
 	}
 }
 
@@ -343,6 +360,9 @@ void run(void)
 			case GAME_OVER:
 				fatal("GAME_OVER not implemented");
 				break;
+			case QUIT:
+				quit = true;
+				break;
 			default:
 				break;
 		}
@@ -374,6 +394,10 @@ void close(void)
 	pointer_destroy(gPointer);
 	item_builder_close();
 	particle_engine_close();
+
+	if (mainMenu)
+		menu_destroy(mainMenu);
+
 	SDL_DestroyRenderer(gRenderer);
 	SDL_DestroyWindow(gWindow);
 	gWindow = NULL;

src/menu.c

@@ -24,26 +24,19 @@ menu_create(void)
 void
 menu_handle_event(Menu *m, SDL_Event *event)
 {
-	UNUSED(m);
 	LinkedList *items;
 
-	if (event->type != SDL_KEYDOWN && event->type != SDL_MOUSEMOTION) {
-		return;
-	}
-
 	items = m->items;
-	if (event->type == SDL_MOUSEMOTION) {
 	while (items) {
 		MenuItem *item = items->data;
 		items = items->next;
 		gui_button_handle_event(item->button, event);
 		item->selected = item->button->hover;
 	}
-	}
 }
 
 void
-menu_item_add(Menu *m, Sprite *s1, Sprite *s2)
+menu_item_add(Menu *m, Sprite *s1, Sprite *s2, void (*event)(void*))
 {
 	MenuItem *item = ec_malloc(sizeof(MenuItem));
 	item->sprite = s1;
@@ -56,7 +49,7 @@ menu_item_add(Menu *m, Sprite *s1, Sprite *s2)
 		item->sprite->textures[0]->dim.width,
 		item->sprite->textures[0]->dim.height
 	};
-	item->button = gui_button_create(area, NULL, NULL);
+	item->button = gui_button_create(area, event, NULL);
 	linkedlist_append(&m->items, item);
 }
 

src/menu.h

@@ -19,7 +19,7 @@ void
 menu_handle_event(Menu*, SDL_Event*);
 
 void
-menu_item_add(Menu*, Sprite*, Sprite*);
+menu_item_add(Menu*, Sprite*, Sprite*, void (*)(void*));
 
 void
 menu_render(Menu*, Camera*);