let offAdd = 0.009;

let waveOffAdd = 0.09;

let lineNumber  = 100

let cols = 20;

let colExtra = -3;

let strokeThinner = 10;

let ranLine = Math.round(Math.random()*lineNumber*cols);

console.log(ranLine)

​

​

function setup() {

  createCanvas(540, 540);

  blendMode(SCREEN)

}

​

function draw() {

  clear();

  background(0);

  stroke(255)

​

  let waveOff = 0;

  let gap = (height/ lineNumber)*1.2

  let colWidth = width / cols;

​

  let lineCount = 0

  for(let x = 0; x < cols; x++){

    for(let i=0; i < lineNumber; i++){

​

      let waveNoiseMultiplier = gap * 6;

      let waveNoise = (noise(waveOff+off) * waveNoiseMultiplier);

      // console.log(waveNoise)

      let y = (i * gap) + waveNoise - waveNoiseMultiplier/1.6

      strokeWeight(waveNoise/strokeThinner)

      strokeCap(SQUARE)

​

      lineCount === ranLine ? stroke("tomato") : stroke(255*noise(waveOff+off))

      line(x * colWidth-colExtra, y, x*colWidth+colWidth+colExtra, y)

      waveOff += waveOffAdd;

      lineCount++;

    }

  }

  off -= offAdd;

}