sketch
var x1;
var x2;
var y1;
var y2;
var x1ss;
var y1ss;
var x3;
var x4;
var y3;
var y4;
var y2ss;
var x5;
var y5;
function setup() {
createCanvas(300, 400);
background (0);
x1 = 0;
y1 = 0;
x1ss = 10;
y1ss = 50;
x2 = x1 + x1ss;
y2 = y1 + y1ss;
x3 = 0;
y3 = 400;
x1ss = 10;
y1ss = 50;
x4 = x1 + x1ss;
y4 = y1 + y1ss;
}
function draw() {
noFill();
stroke(255);
strokeWeight(1);
line(x1, y1, x2, y2);
x1ss = x1ss * 1.35;
y1ss = y1ss * 1.3;
x2 = x1 + x1ss;
y2 = y1 + y1ss;
y2ss = -y1ss;
stroke("red");
strokeWeight(1);
line(x3, y3, x4, y4);
x4 = x3 + x1ss;
y4 = y3 + y2ss;
stroke("pink");
strokeWeight(1);
line(x2 - x1, y2 - y1, y2- y1, x2 - x1);
stroke("grey")
line(300 - x2, 400 - x2, x4 / 3, y4 / 3);
}