HelloWorld!

function setup(){

  createCanvas(windowWidth,windowHeight);

}

​

function draw(){

  background(0, 255, 229);

  strokeWeight(80);

  stroke(100, 200, 300);

  point(mouseX, mouseY);

  line(mouseX, mouseY, width, height);

  stroke(100, 200, 300);

  line(mouseX, mouseY, width, height);

  stroke(100, 200, 300);

  point(mouseX, mouseY);

  line(mouseX, mouseY, 0, 0);

  stroke(100, 200, 300);

  line(0, height, mouseX, mouseY);

point(mouseX, mouseY);

  line(0, mouseY, mouseX, 0);

  stroke(200, 300, 400);

}