class MVertex
{
  float ox, oy;
  float dx, dy;
  float x,y;

  MVertex(float x, float y){
    this.ox = x;
    this.oy = y;
    this.x = x;
    this.y = y;
      this.dx = x;
    this.dy = y;
  }

  void move(PVector displace,float f){
    dx += f*displace.x;
    dy += f*displace.y; 
  }
  
  void shift(float distort){
    x = dx*distort + ox*(1-distort);
    y = dy*distort + oy*(1-distort);
  }


}