微信小游戏----事件篇

最新推荐文章于 2024-08-28 15:43:56 发布

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wx.onTouchStart()
wx.onTouchMove()
wx.onTouchEnd()
wx.onTouchCancel()

var canvas = wx.createCanvas()
var ctx =canvas.getContext("2d")

var img = wx.createImage()
var firstX =100
var firstY = 100
var imgW =100
var imgH = 100


img.src="./source/2.jpg"
img.onload=function(){
    ctx.drawImage(img, firstX, firstY,imgW,imgH);
}

wx.onTouchStart(function(e){
   var touch = e.changedTouches[0]
   var clientX = touch.clientX
   var clienty = touch.clientY
   if((firstX<clientX&&clientX<(firstX+imgW))&&(firstY<clienty&&clienty<(firstY+imgH))){
        console.log("你被点中了")
   }
})