void setup(){

  size(300,300);

}

void loop(){

//background(255,255,255);
  if(mousePressed){
    stroke(0,255,255);
    line(mouseX,mouseY,300,300);
    //fill(100,100,100);
    //ellipse(mouseX,mouseY,50,50);
    }
  else{
    stroke(255,0,255);
    line(mouseX,mouseY,0,300);
  //fill(200,100,200);
  //rect(mouseX,mouseY,50,50);
  }
  
  

}