week 4.2

function setup() {

  createCanvas(600, 600);

//Set stroke weight

  strokeWeight(2);

}

​

//Angle

let angle = 0; 

//Space between lines

let lineSpacing = 15;

​

function draw() {

  background(255);

//Vertical lines

  for (let x = 0; x < width; x += lineSpacing) {

//Green

    stroke(0, map(x, 0, width, 100, 255), 0);

//Draw line

    line(x, 0, x, height); 

  }

​

push(); 

//2nd vertical lines

//Move to center

  translate(width / 2, height / 2); 

//Rotate

  rotate(angle); 

  for (let x = 0; x < width; x += lineSpacing) {

//Purple

    stroke(map(angle * 20, 0, TWO_PI, 100, 255), 0, map(angle * 20, 0, TWO_PI, 100, 255));

//Draw line

    line(x - width / 2, -height / 2, x - width / 2, height / 2); 

  }

  pop();

//Rotation angle

  angle += 0.02; 

}

​

​

​