function setup(){
createCanvas(200,150);
background(200);
strokeWeight(3);
}
function draw(){
beginShape();
vertex(100,5);
vertex(117,46);
vertex(173,45);
vertex(131,76);
vertex(143,121);
vertex(99,98);
vertex(57,120);
vertex(71,75);
vertex(25,46);
vertex(80,46);
endShape(CLOSE)
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.min.js"></script>