let x=0;

let y=0;

let spacing=20;

function setup() {

createCanvas(400, 400);

background(0);

}

function draw() {

strokeWeight(2);

stroke(random(255),random(255), random(255));

if (random(1) less than 0.5){ line(x,y,x+spacing/2,y+spacing);

}

else{

line(x,y+spacing/100,x+spacing,y);

}

x=x+spacing;

if (x>width){

x=0

y=y+spacing;

}

}