Add border animation when moving

src/main.c

@@ -27,6 +27,8 @@ void init(void) {
 }
 
 __task int main(void) {
+	uint16_t moves_count = 0;
+	
 	init();
 		
 	game_state state;
@@ -43,35 +45,42 @@ __task int main(void) {
 			switch(read_kb()) {
 				case K_UP:
 					BELL1();
+					ddraw_field_borders_on_buffer(0x1F);
 					state = step_game(UP);
 					break;
 				case K_DOWN:
 					BELL1();
+					ddraw_field_borders_on_buffer(0x2F);
 					state = step_game(DOWN);
 					break;
 				case K_LEFT:
 					BELL1();
+					ddraw_field_borders_on_buffer(0x4F);
 					state = step_game(LEFT);
 					break;
 				case K_RIGHT:
 					BELL1();
+					ddraw_field_borders_on_buffer(0x8F);
 					state = step_game(RIGHT);
 					break;
 				default:
 					continue; // Do nothing, loop again
 			}
+			
+			// Increase the count of moves we made
+			moves_count++;
 	
-			// If we have finished, break out of this loop
+			// If we have won, break out of this loop
 			if(state.done) break;
 			
-			// Draw the moved sprites
+			// Draw the moved tiles
 			draw_tiles();
 			
-			// Unable to add a tile. We lost!!!
+			// Unable to add a tile: we ran out of space and lost!!!
 			uint8_t random_tile_off = add_random_tile();
 			if(!random_tile_off) break;
 			
-			// Draw the new tile directly on the front buffer
+			// Draw the new tile directly on the front buffer, this way we make it appear with an "animation"
 			ddraw_single_tile(random_tile_off - 1);
 		}