color stipKleur = color(255,0,255);    //Magenta
color achtergrond = color(0,255,255);  //Cyaan
int ellipsX = 50; int ellipsY = 50;

void setup()
{
  size(500, 500);
}
void draw()
{
  background(achtergrond);
  noStroke();
  fill(stipKleur); //kleur stip
  ellipse(ellipsX, ellipsY, 30, 30); //cirkel
}
void mouseClicked()
{
  ellipsX = mouseX;
  ellipsY = mouseY;
}