魚為什么不動(dòng)啊
魚不跟隨鼠標(biāo)動(dòng) 而且魚也不在屏幕中間 跟視頻上一樣的代碼 沒有報(bào)錯(cuò) 不知道怎么解決
中午晚上吃啥
2015-12-08
2 回答
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2015-12-09
var momObj = function(){
? ?this.x;
? ?this.y;
? ?this.angle;
? ?this.bigEye = new Image();
? ?this.bigBody = new Image();
? ?this.bigTail = new Image();
}
momObj.prototype.init = function(){
? ?this.x = canWidth*0.5;
? ?this.y = canHeight*0.5;
? ?this.angle = 0;
? ?this.bigEye.src = "./src/bigEye0.png";
? ?this.bigBody.src = "./src/bigSwim0.png";
? ?this.bigTail.src = "./src/bigTail0.png";
}
momObj.prototype.draw = function(){
? ?//lerp x,y
? ?this.x = lerpDistance(mx,this.x,0.98);
? ?this.y = lerpDistance(my,this.y,0.98);
? ?//delta angle
? ?//Math.atan2(y,x)
? ?var deltaY = my-this.y;
? ?var deltaX = mx-this.x;
? ?var beta = Math.atan2(deltaY,deltaX)+Math.PI;
? ?//lerp angle
? ?this.angle = lerpAngle(beta,this.angle,0.6);
? ?ctx1.save();
? ?ctx1.translate(this.x,this.y);
? ?ctx1.rotate(this.angle);
? ?ctx1.drawImage(this.bigTail,-this.bigTail.width*0.5+30,-this.bigTail.height*0.5);
? ?ctx1.drawImage(this.bigBody,-this.bigBody.width*0.5,-this.bigBody.height*0.5);
? ?ctx1.drawImage(this.bigEye,-this.bigEye.width*0.5,-this.bigEye.height*0.5);
? ?ctx1.restore();
}
2015-12-08
你好，把代碼貼出來(lái)看看。