--學號姓名 105703056 張欽棠 --簡要說明遊戲操作 貪吃蛇遊戲 wasd or arrows key to control the snake press space-bar to get a temporary speedup --說明主要遊戲機制 moving snake to get coins --遊戲素材板權說明 free 2D tile assets from https://pixel-poem.itch.io/dungeon-assetpuck --(optional) 說明特色或額外功能 * Wall hitting detect * Body eaten detect * Press space-bar to get a temporary speedup * Score counting * Using Unity tile feature to make the background * Animation in snakeHead and coins