Week 7 tiling - OpenProcessing

mySketch
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let rr = 0;
let gg = 0;
let bb = 0;
gridS = 40
​
function setup() {
  createCanvas(600, 600);
  noLoop();
}
​
function draw() {
background(rr, gg, bb);
    for (let i = 0; i < 15; i++ ) {
    for (let j = 0; j < 15; j++) {
      let x = i * gridS;
      let y = j * gridS;
      
      //fill(255,255,255,10);
      //rect(x,y,gridS,gridS);
      strokeWeight(0);
      
      let coin = random (0,1);
      
      //right bottom
      if(coin < 0.25) {
          fill(120, 0, 0);
      triangle(x,y+gridS,x+gridS,y+gridS,x+gridS,y);
          }
      
      //left bottom
      else if(0.5 > coin > 0.25) {
        fill(253, 240, 213);
      triangle(x,y,x,y+gridS,x+gridS,y+gridS);
      }
      
      //left top
       else if(0.75 < coin < 0.5) {
          fill(0, 48, 73);
      triangle(x+gridS,y,x,y,x,y+gridS);
      }
      
      //right top
      else if( coin < 1) {
          fill(102, 155, 188);
      triangle(x,y,x+gridS,y,x+gridS,y+gridS);
      }
      }
    }
​
}
function keyPressed() {
  if(key == ' ') {
    rr = random(0,255);
    gg = random(0,255);
    bb = random(0,255);
    draw();
  }
}
​