Car betty = new Car(300);
Car c2 = new Car(100);
Car c3 = new Car(200);
float frogX = 400;
float frogY = 500;
void setup()
{
  size(800,600);
}
void draw()
{
  background(255);
  
  drawFrog();
  if( frogIsDead() )
  {
    stop();
  }
  
  betty.drawYourself();
  betty.move();
  c2.drawYourself();
  c2.move();
  c3.drawYourself();
  c3.move();
}
boolean frogIsDead()
{
  if( betty.isThisPointOnYou( frogX, frogY ) )
  {
    return true;
  }
  if( c2.isThisPointOnYou( frogX, frogY ) )
  {
    return true;
  }
  if( c3.isThisPointOnYou( frogX, frogY ) )
  {
    return true;
  }
  return false;
}
void drawFrog()
{
  fill(#00ff00);
  ellipse(frogX,frogY,50,50);
}
void keyPressed()
{
  if( key == 'w' )
  {
    frogY = frogY - 50;
  }
  if( key == 's' )
  {
    frogY = frogY + 50;
  }
  if( key == 'a' )
  {
    frogX = frogX - 50;
  }
  if( key == 'd' )
  {
    frogX = frogX + 50;
  }
}
void mousePressed()
{
  if( betty.isMouseOnYou() )
  {
    betty.changeYourEngine();
  }
  if( c2.isMouseOnYou() )
  {
    c2.changeYourEngine();
  }
  if( c3.isMouseOnYou() )
  {
    c3.changeYourEngine();
  }
}