Quadrat, Linie Regenbogen

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(0);

​

}

​

function draw() {

  //background(0);

  colorMode(HSB, 360,100,100);

​

  /*

  var col = map(mouseX, 0, width, 0, 360);

  stroke(col,100,100);

  */

  //if(mouseIsPressed)

  for(i=0; i<width; i++)

  {

    var col=map(i,0,width,0,360);

    stroke(col,100,100);

    line(i,0,i,height);

  }

  //line(mouseX, 0, mouseX, height);

​

  translate(width/2, height/2);

  rotate(radians(col));

  rectMode(CENTER);

  noFill();

  rect(0,0,col,col);

}