Js 2次曲線関数

	 PointOnCubicBezier1(cp , t) {
			var tPos = {}
            tPos.x = Math.pow((1-t),2)*cp[0].x+2*t*(1-t)*cp[1].x + Math.pow(t,2)*cp[2].x;
			tPos.y = Math.pow((1-t),2)*cp[0].y+2*t*(1-t)*cp[1].y + Math.pow(t,2)*cp[2].y;
			return tPos;
          },
    let    t1 = 1   ;  max = 20  

     setPoint(){
      if(this.t1 < this.max){
        this.point = this.PointOnCubicBezier1([this.point,{x:100,y:0},{x:100,y:100}],this.t1/this.max)
        this.t1 += 1;
      }
    }


setInterval(this.setPoint,100)