const h = 700;

const lw = 100;

​

let coef = [

  [0, 0],

  [0, 0],

  [1, 1],

  [0, 0],

];

​

function setup() {

  createCanvas(w, h);

}

​

function draw() {

  background(220);

​

  let coords = [];

​

  for (let i = 0; i <= 5; i++) {

    let l = [

      w / 2 + lw * coef[0][0], h / 2 + lw * coef[1][0],

      w / 2 + lw * coef[2][0], h / 2 + lw * coef[3][0],

    ];

    coords.push(l);

​

    for (let j = 0; j < coef.length; j++) {

      if (coef[j][1] == 4) {

        if (coef[j][0] < 0){coef[j][0]*=-1}

        coef[j][0] += 1;

      }

      if (coef[j][1] == 3) {

        coef[j][0] *= -1;

      }

      coef[j][1]+=1

​

    }

​

    // Update coef.c, coef.a, or other coefficients here based on your logic

  }

​

  for (let i = 0; i < coords.length; i++) {

    let x = coords[i][0];

    let y = coords[i][1];

    let x1 = coords[i][2];

    let y1 = coords[i][3];

    line(x, y, x1, y1);

  }

}

​