2nd project

function setup() {

  createCanvas(windowWidth, windowHeight);

​

}

​

function draw() {

  /*strokeWeight(5);

  stroke(255, 4 , 4 , 56);

  fill(100 , 200 , 30 );*/ 

// 4 parametro per la trasparenza 

  background(98);

  for (let x = 0; x < windowWidth; x = x + 50) {

    stroke ( 100, map(x, 0, width, 0, 255), 50); // per la gradazione del colore

    line(x, 0, mouseX, mouseY);

  }

for( let x = 0; x < windowWidth; x= x + 50  ){

  stroke ( 100, map(x, 0, width, 0, 255), 50);

  line(x, windowHeight, mouseX, mouseY) ;

 }

}