Remap pixels

RemapPixCircle.js

/*

@param _x x position of center
@param _y y position of center
@param _d diemeter of circle

Andrés Senn

*/

function RemapPixCircle(_x, _y, _d) {
      loadPixels()
      for (let x = _x-_d/2; x <_x+_d/2;  x++) {
            for (let y = _y-_d/2; y < _y+_d/2; y++) {
                  let dis = dist(x,y,_x,_y)
                  if (dis < _d/2) {
                        let idx = (x + y * width) * 4
                        // Try changing noise size (0.001 / 0.0025)
				                let n = noise(x * 0.001, y * 0.0025, radians(frameCount));
                        let nx = n * cos(x * 0.1 * n)*20;
                        let ny = n * sin(x * 0.1 * n)*20;
                        let nidx = (int(x + nx) + int(y + ny) * width) * 4
                        let p1 = pixels[nidx]
                        let p2 = pixels[nidx + 1]
                        let p3 = pixels[nidx + 2]
                        let p4 = pixels[nidx + 3]
                        // try change with coeerct order or mix them
                        pixels[idx] = p2
                        pixels[idx + 1] = p3
                        pixels[idx + 2] = p1
                        pixels[idx + 3] = p4
                  }

            }
      }
      updatePixels()
}