SOURCE

let a =0;
let x;
let y;
function setup(){
    createCanvas(500,500);
    x = width/2;
    y = height/2;
    background(120);
    colorMode(HSB,360,100,100,1);
}
function draw(){
    a+=0.3;
    fill(random(360),100,100);
    push();
    translate(250,250);
    rotate(a);
    translate(-100.-100);
    triangle(150,30,30,270,270,270);
    pop();
    
}