var housePoint = 50;

​

function setup() {

    createCanvas(600,400);

    smooth();

    fill(0);

    noStroke();

​

    // Here is how to create a bezier curve when drawing

    // bezierVertex(x2, y2, x3, y3, x4, y4)

    // start point, mid point and end point

    translate(width/2 - 150, 0);

    beginShape();

    vertex(0, 100);

    bezierVertex(0, 100, 50, 0, 100, 100);

    bezierVertex(100, 100, 150, 200, 200, 100);

    bezierVertex(200, 100, 250, 0, 300, 100);

    vertex(300, 300);

    vertex(0, 300);

    vertex(0, 100);

    endShape();

}