GMU:Actors, Traces, Collectives/SS17/Schachbrettmuster Array

<syntaxhighlight lang=javaScript> int [][] rectPos;

void setup () {

 size (800, 800);
 noLoop();

 rectPos = new int [width/20][height/20];

}

void draw() {

 for (int j = 0; j < height /20; j ++) {
   for (int i =0; i < width/20; i ++) {

     rectPos [i][j] = rectPos [i][j] + 20*i;
     
     if (i%2==0&&j%2==0) {
       fill(0);
     }else if(i%2!=0&&j%2!=0){
       fill(0);
     }else{
     fill (255);
     }
      rect (i*20, j*20, 20, 20 );
   }
 }

} </syntaxhighlight lang=javaScript>