html5 canvas圆形粒子移动背景动画特效.zip
this.update=function(){
varlastPoint={x:_this.x,y:_this.y};
//Movepointsovertime
_this.radians=_this.velocity;
//Drageffect
_this.lastMouse.x=(mouse.x-_this.lastMouse.x)*0.05;
_this.lastMouse.y=(mouse.y-_this.lastMouse.y)*0.05;
//CircularMotion
_this.
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