What I wondered about the code below is why doesnt it get slow, all shapes created still exist, they only leaved the board the viewable area exept for the rect created which is drawn over and over again. So how it comes that processing doesnt get terrible slow after running this sometime?


float y = 50.0;
float speed = 1.0;
float radius = 15.0;
int direction = 1;

void setup() {
 size(100, 100);
 smooth();
 noStroke();
 ellipseMode(RADIUS);
}

void draw(){
 fill(0, 12);
 rect(0, 0, width, height);
 fill(255);
 ellipse(33, y, radius, radius);
 y += speed * direction;
 if ((y > height-radius) || (y < radius)) {
   direction = -direction;
   println(y);
 }
}