week17餵魚

void setup(){
  size(400,300);
}
float x=100,y=150;
void draw(){
  background(#002966);
  ellipse(x,y,50,50);
 
  float dx=x-mouseX;
  float dy=y-mouseY;
  float len=sqrt(dx-dx+dy*dy);
  x -= dx*0.1;
  y -= dy*0.1;
}