let a = 0.0;
let x=0;
let y=0;
let r=200;
function setup() {
createCanvas(500, 500);
}
function draw() {
fill(random(350),120,)
r=random(255)
a++;
y=r*sin(radians(a))+250;
x=r*cos(radians(a))+250;
triangle(x,y,150,100,200,180);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.min.js"></script>