/***********************create a 2Darray of PixelRects*************************/
 
int positionsX = 100 ;   // deside the width of the array
int positionsY = 100;   // deside the length of the array
 
PixelRect[][] pixrect = new PixelRect[positionsX][positionsY];


void setup(){

  size(400,400);                     // set the size of the applet window

/*************** access all the positions of the array *****************/

  int sqSize = round((float)width/ (float)positionsX);
  
  for(int i = 0; i < positionsX; i++){     
   for(int j = 0; j < positionsY; j++){
     
     pixrect[i][j] = new PixelRect( i, j, sqSize, color(random(255)));
   } 
  }
  
}

void draw(){

 background(200);       

/*************** create all the pixelRects of the array *****************/  

  for (int i = 0; i < positionsX; i++){          
   for(int j = 0; j < positionsY; j++){
     
     stroke(100);
     pixrect[i][j].swapColors();
     pixrect[i][j].drawPixelRect(); 
    }
  }
}


void mousePressed(){
  
  for (int i = 0; i < positionsX; i++){          
   for(int j = 0; j < positionsY; j++){
     
     pixrect[i][j].setColor(color(random(255)));
   }
  }
}