Added win and loss conditions along with their respective screens

ui.c

@@ -10,12 +10,23 @@ static Vector2 drag_start_pos;
 void handle_mouse_input(GameState_t *game_state) {
   if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) {
     drag_start_pos = GetMousePosition();
-    if (drag_start_pos.x >= 500 && drag_start_pos.x <= 775 && drag_start_pos.y >= 455 && drag_start_pos.y <= 479) {
-      reset_board(game_state);
-      return;
+
+    // Check for the normal reset button
+    if (game_state->status == PLAYING) {
+      if (drag_start_pos.x >= 500 && drag_start_pos.x <= 775 && drag_start_pos.y >= 455 && drag_start_pos.y <= 479) {
+        reset_board(game_state);
+        return;
+      }
+    } else {
+      // Check for the "Play again" button
+      if (drag_start_pos.x >= 300 && drag_start_pos.x <= 500 && drag_start_pos.y >= 450 && drag_start_pos.y <= 490) {
+        reset_board(game_state);
+        return;
+      }
     }
 
-    is_dragging = true;
+    if (game_state->status == PLAYING)
+      is_dragging = true;
   } else if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON) && is_dragging) {
     Vector2 current_pos = GetMousePosition();
 
@@ -39,7 +50,20 @@ void handle_mouse_input(GameState_t *game_state) {
           move(game_state, UP);
         }
       }
-      spawn_tile(game_state);
+      if (!spawn_tile(game_state) && !can_move(game_state)) {
+        game_state->status = LOST;
+        return;
+      }
+      // TODO: Allow for infinite play
+      for(int y = 0; y < BOARD_HEIGHT; y++) {
+        for(int x = 0; x < BOARD_WIDTH; x++) {
+          if(game_state->board[y][x] == 2048) {
+            game_state->status = WON;
+            return;
+          }
+        }
+      }
+
     }
 
     is_dragging = false;