let y = 0;

​

//1

let a1 =  0.00;

let b1 =  0.00;

let c1 =  0.00;

let d1 =  0.16;

let e1 =  0.00;

let f1 =  0.00;

let p1 =  0.01;

​

// let a1 =  0.00;

// let b1 =  0.00;

// let c1 =  0.00;

// let d1 =  0.25;

// let e1 =  0.00;

// let f1 = -0.40;

// let p1 =  0.01;

​

//2

let a2 =  0.85;

let b2 =  0.04;

let c2 = -0.04;

let d2 =  0.85;

let e2 =  0.00;

let f2 =  1.60;

let p2 =  0.85;

​

// let a2 =  0.95;

// let b2 =  0.005;

// let c2 = -0.005;

// let d2 =  0.93;

// let e2 = -0.002;

// let f2 =  0.50;

// let p2 =  0.93;

​

//3

let a3 =  0.02;

let b3 = -0.26;

let c3 =  0.23;

let d3 =  0.22;

let e3 =  0.00;

let f3 =  1.60;

let p3 =  0.07;

​

​

// let a3 =  0.035;

// let b3 = -0.02;

// let c3 =  0.16;

// let d3 =  0.04;

// let e3 = -0.09;

// let f3 =  0.02;

// let p3 =  0.03;

​

//4

let a4 = -0.15;

let b4 =  0.28;

let c4 =  0.26;

let d4 =  0.24;

let e4 =  0.00;

let f4 =  0.44;

let p4 =  0.07;

​

// let a4 = -0.04;

// let b4 =  0.20;

// let c4 =  0.16;

// let d4 =  0.04;

// let e4 =  0.083;

// let f4 =  0.12;

// let p4 =  0.03

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(0);

}

​

function drawPoint(){

  stroke(255,255,255,10);

  strokeWeight(0);

  let px = map(x,-3,3,0,width);

  let py = map(y,0,10,height,0);

  point(px,py);

}

​

function getPoint(){

  let nextX,nextY;

  let r = random(1);

  if(r < p1){

    //1

    nextX = a1*x + b1*y + e1;

    nextY = c1*x + d1*y + f1;

  }else if(r <  p1 + p2){

    //2

    nextX = a2*x + b2*y + e2;

    nextY = c2*x + d2*y + f2;

  }else if(r < p1 + p2 + p3){

    //3

    nextX = a3*x + b3*y + e3;

    nextY = c3*x + d3*y + f3;

  }else{

    //4

    nextX = a4*x + b4*y + e4;

    nextY = c4*x + d4*y + f4;

  }

  x = nextX;

  y = nextY;

}

​

function draw() {

  for(let i = 0; i < 1000; i++){

    drawPoint();

    getPoint();

  }

}