//We always have to include the library
#include "LedControl.h"

/*
 Now we need a LedControl to work with.
 PD0 is connected to the DataIn
 PD1 is connected to the CS
 PD2 is connected to CLK
 ***** Please set the number of devices you have *****
 But the maximum default of 8 MAX72XX wil also work.
 */
LedControl lc=LedControl(23,25,24,4);

/* we always wait a bit between updates of the display */
unsigned long delaytime=125;

/*
 This time we have more than one device.
 But all of them have to be initialized
 individually.
 */
void setup() {
  //we have already set the number of devices when we created the LedControl
  int devices=lc.getDeviceCount();
  //we have to init all devices in a loop
  for(int address=0;address<devices;address++) {
    /*The MAX72XX is in power-saving mode on startup*/
    lc.shutdown(address,false);
    /* Set the brightness to a medium values */
    lc.setIntensity(address,8);
    /* and clear the display */
    lc.clearDisplay(address);
  }
}

void loop() {
  //read the number cascaded devices
  int devices=lc.getDeviceCount();
  int rowOn=4, rowOff=0;

  //we have to init all devices in a loop
//  for(int col=0;col<8;col++) {
  int col=7;
  int address=0;

  lc.setLed(address,0,col,true);
  lc.setLed(address,1,col,true);
  lc.setLed(address,2,col,true);


    for(int rowCount=0;rowCount<10;rowCount+=1) {
//      for(int address=0;address<devices;address++) {

//        delay(delaytime);
        if (rowCount<5){
          rowOn=rowCount+3;
          rowOff=rowCount;
        } else {
          rowOn=9-rowCount;
          rowOff=12-rowCount;
        }

        lc.setLed(address,rowOn,col,true);
        lc.setLed(address,rowOff,col,false);
        delay(delaytime);

        if(rowCount==9){
          rowCount=-1;
          col=col-1;
          if(col==-1){
            delaytime=delaytime/2;
            col=7;
            address=address+1;
            if(address==4){
              for(int rowClear=0;rowClear<8;rowClear++) {
                for(int addressClear=4;addressClear>-1;addressClear--) {
                    for(int colClear=0;colClear<8;colClear++) {
                      lc.setLed(addressClear,rowClear,colClear,false);
//                      delay(delaytime);
                    }
                  }
                }
            delaytime=125;
            break;
            }
          }
          lc.setLed(address,0,col,true);
          lc.setLed(address,1,col,true);
          lc.setLed(address,2,col,true);
        }
   }
}