//We always have to include the library
#include "LedControl.h"
//include this file so we can write down a byte in binary encoding
#include <binary.h>

/*
 Now we need a LedControl to work with.
 pin 12 is connected to the DataIn 
 pin 11 is connected to the CLK 
 pin 10 is connected to LOAD 
 We have only a single MAX72XX.
 */
LedControl lc=LedControl(12,11,10,1);

/* we always wait a bit between updates of the display */
unsigned long delaytime=100;


  
void setup() {
  /*
   The MAX72XX is in power-saving mode on startup,
   we have to do a wakeup call
   */
  lc.shutdown(0,false);
  /* Set the brightness to a medium values */
  lc.setIntensity(0,5);
  /* and clear the display */
  lc.clearDisplay(0);

}

void loop() { 

  lc.clearDisplay(0);  

  //1 voor 1 aan
  for( int col=0; col <= 7; col++)
  {
    for( int row=0; row <= 7; row++ )
    {
       lc.setLed(0,col,row,true);   
       delay(delaytime);     
    }
  }
  
  // 1 voor 1 uit
  for( int col=7; col >= 0; col--)
  {
    for( int row=7; row >= 0; row-- )
    {
       lc.setLed(0,col,row,false);   
       delay(delaytime);     
    }
  }

  //1 voor 1 aan heen
  for( int col=0; col <= 7; col++)
  {
    for( int row=0; row <= 7; row++ )
    {
       lc.setLed(0,col,row,true);   
       delay(delaytime); 
       lc.setLed(0,col,row,false);        
    }
  }
  
  // 1 voor 1 aan terug
  for( int col=7; col >= 0; col--)
  {
    for( int row=7; row >= 0; row-- )
    {
       lc.setLed(0,col,row,true);   
       delay(delaytime);     
       lc.setLed(0,col,row,false);        
    }
  }
  
}