let init_length = 100;

let init_angle = 60;

​

​

let shrink_factor = 0.7;

let minBranch_len = 2;

​

function setup() {

    createCanvas(800, 800);

    noLoop();

    angleMode(DEGREES);

}

​

function draw() {

    background(0, 0, 40);

    translate(width/2, height/2);

    InitializeBranches(init_length, init_num, init_angle);

}

​

function branch(len, angle) {

    line(0, 0, 0, len);

    translate(0, len);

    len *= 0.7;

    angle = random(angle-30, angle+20);

​

    if (len > 3) {

        push();

        rotate(angle);

        branch(len, angle);

        pop();

​

        push();

        rotate(-angle);

        branch(len, angle);

        pop();

    }

}

​

function InitializeBranches(length, num, angle) {

    stroke(255, 80, 80);

    let degreeDiv = 360/num;

    let angleRange;

​

    for (var i = 0; i < num; i++) {

        push();

        angleRange = i*degreeDiv;

        rotate(random(angleRange, angleRange + degreeDiv));

        branch(length, angle);

        pop();

    }

}