Изменить изображение при столкновении и вернуться обратно после

Question

У меня есть простая игра на основе холста, где мне нужно собрать объект и избежать другого. Мне нужно изменить анимацию игрового элемента, пока он сталкивается с объектом, который нужно собрать.

Сейчас я могу изменить его изображение, когда они сталкиваются, но как мне вернуть его обратно, когда это не так?

<script>
var gametime = 1;
var myGamePiece;
var myObstacles = [];
var toCollect = [];
var score=0;
var timeleft=[];
var showscore=[];
function startGame() {
    showscore = new component("30px", "Consolas", "black", 300, 40, "text");
    timeleft = new component("30px", "Consolas", "black", 5, 40, "tex");
    myGamePiece = new component(20,30, "https://cdn1.iconfinder.com/data/icons/human-standing-postures-and-poses/244/human-013-512.png", 220, 120,"image");
    myGameArea.start();
}
var myGameArea = {
    canvas : document.createElement("canvas"),
    start : function() {
        this.canvas.width = 480;
        this.canvas.height = 270;
         document.getElementById("canvascontainer").appendChild(this.canvas);
        this.canvas.style.cursor = "none"; 
        this.context = this.canvas.getContext("2d");
        this.pause= false;
        this.frameNo = 0;
        this.interval = setInterval(updateGameArea, 20);
        window.addEventListener('mousemove', function (e) {
      myGameArea.x = e.pageX;
      myGameArea.y = e.pageY;
    })
        },
    clear : function() {
        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
    },
    stop : function() {
        clearInterval(this.interval);
    }    
}
function component(width, height, color, x, y,type) {

this.type = type;
if (type == "image") {
        this.image = new Image();
        this.image.src = color;
    }
    this.width = width;
    this.height = height;
    this.speedX = 0;
    this.speedY = 0;    
    this.x = x;
    this.y = y;    
    this.update = function() {
        ctx = myGameArea.context;
        if (this.type == "text") {
            ctx.font = this.width + " " + this.height;
            ctx.fillStyle = color;
            ctx.fillText(this.text, this.x, this.y);
        } else if (this.type == "tex") {
            ctx.font = this.width + " " + this.height;
            ctx.fillStyle = color;
            ctx.fillText(this.text, this.x, this.y);
        } else if (type == "image") {
            ctx.drawImage(this.image,this.x, this.y,this.width, this.height);
        } else {
            ctx.fillStyle = color;
            ctx.fillRect(this.x, this.y, this.width, this.height);
        }
    }
    this.newPos = function() {
        this.x += this.speedX;
        this.y += this.speedY;  
        this.hitBottom();
    }    
    this.hitBottom = function() {
    var rightlimit = myGameArea.canvas.width - this.width;
    var bottomlimit=myGameArea.canvas.height- this.height;
    if (this.x > rightlimit) {
      this.x = rightlimit;
    }
    else if (this.x < 0) {
      this.x = 0;
    }
else if (this.y < 0) {
      this.y = 0;
    }
else if (this.y > bottomlimit) {
      this.y = bottomlimit;
    }
    }
    this.crashWith = function(otherobj) {
        var myleft = this.x;
        var myright = this.x + (this.width);
        var mytop = this.y;
        var mybottom = this.y + (this.height);
        var otherleft = otherobj.x;
        var otherright = otherobj.x + (otherobj.width);
        var othertop = otherobj.y;
        var otherbottom = otherobj.y + (otherobj.height);
        var crash = true;
        if ((mybottom < othertop) || (mytop > otherbottom) || (myright < otherleft) || (myleft > otherright)) {
            crash = false;
        }
        return crash;
    }
}
function updateGameArea() {
    var x, y,z;
    var ss=-4;
    for (i = 0; i < myObstacles.length; i += 1) {
        if (myGamePiece.crashWith(myObstacles[i])) {
            myObstacles[i].y -= 900;

        } 
    }
    myGameArea.clear();
    myGameArea.frameNo += 1;
    if (myGameArea.frameNo == 1 || everyinterval(4)) {
    ap=Math.floor(Math.random() * (460 - 20) + 20)
        z =myGameArea.canvas.width-ap;
        y = myGameArea.canvas.height ;
        toCollect.push(new component(20, 20, "https://i.pinimg.com/originals/d0/04/28/d00428efa0bf27b9edd37eac32dfd2c1.png", z, y,"image"));
    }
    for (i = 0; i < toCollect.length; i += 1) {
    toCollect[i].y +=-3
        toCollect[i].update();}
    if (myGameArea.frameNo == 1 || everyinterval(10)) {
    gap= Math.floor(Math.random() * (450 - 30) + 30)
        x = myGameArea.canvas.width- gap;
        y = myGameArea.canvas.height ;
        myObstacles.push(new component(10, 20, "https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcRfO8UyiQrsia2lPOLAlUYYi-x8PHJEF8b3V4Wg1dF0z4JDSkkW", x, y,"image"));
    }
    for (i = 0; i < myObstacles.length; i += 1) {
        myObstacles[i].y += -3;
        myObstacles[i].update(); }
    for (i = 0; i < toCollect.length; i += 1) {
        if (myGamePiece.crashWith(toCollect[i])) {
           score++;
           myGamePiece.image.src="smiley.gif";
        }
            }    
    if (myGameArea.x && myGameArea.y) {
    myGamePiece.x = myGameArea.x;
    myGamePiece.y = myGameArea.y;
  }     
}

function everyinterval(n) {
    if ((myGameArea.frameNo / n) % 1 == 0) {return true;}
    return false;
}
function clearmove() {
    myGamePiece.speedX = 0; 
    myGamePiece.speedY = 0; 
}
</script>

основной код будет

for (i = 0; i < toCollect.length; i += 1) {
        if (myGamePiece.crashWith(toCollect[i])) {
           score++;
           myGamePiece.image.src="smiley.gif";
        }
            }