C64 Print Art 2 - OpenProcessing

mySketch
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const randArr = [1, 2, 3, 4]
const palette = [
  "#aaff00",
  "#ffaa00",
  "#ff00aa",
  "#aa00ff",
  "#00aaff"
]
const gapsize = 20
​
function setup() {
  createCanvas(windowWidth, windowHeight);
  background(0);
  noLoop()
}
​
function draw() {
  drawGrid()
}
​
​
function drawGrid() {
  for (row = 0; row < width; row+=gapsize) {
    stroke(random(palette))
    for (column = 0; column < height; column+=gapsize) {
      drawLines(row, column)
    }
  }
  
​
  function drawLines(row, column) {
    const r = random(randArr)
    strokeWeight(4)
    if (r === 1) {
      line(row, column, row + gapsize, column + gapsize)
    } else if (r === 2) {
      line(row + gapsize, column, row, column + gapsize)
    } else if (r === 3) {
      line(row + (gapsize/2), column, row+(gapsize/2), column + gapsize)
    } else if (r === 4) {
      line(row, column+(gapsize/2), row+gapsize, column + (gapsize/2))
    }
  }
}
​
function keyTyped() {
  switch (key) {
    case " ":
      background(0)
      redraw()
  }
}