arduino joystick button matrix

/* @file CustomKeypad.pde
 || @version 1.0
 || @author Alexander Brevig
 || @contact alexanderbrevig@gmail.com
 ||
 || @description
 || | Demonstrates changing the keypad size and key values.
 || #
 */
#include <Keypad.h>
JoyState_t joySt;
const byte ROWS = 4; //four rows
const byte COLS = 6; //four columns
//define the cymbols on the buttons of the keypads
uint32_t values[] = {
  0x1,0x2,0x4,0x8,0x10,0x20,0x40,0x80,0x100,0x200,0x400,0x800,0x1000,0x2000,0x4000,0x8000,0x10000,0x20000,0x40000,0x80000,0x100000,0x200000,0x400000,0x800000  };
char hexaKeys[ROWS][COLS] = {
  {1,2,3,4,5,6},
  {7,8,9,10,11,12},
  {13,14,15,16,17,18},
  {19,20,21,22,23,24}};
byte rowPins[ROWS] = {
  8, 5, 3, 4}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {
  6, 7, 13, 11,10,9}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

void setup(){
  //Serial.begin(9600);
  joySt.xAxis = 0;
  joySt.yAxis = 0;
  joySt.zAxis = 0;
  joySt.xRotAxis = 0;
  joySt.yRotAxis = 0;
  joySt.zRotAxis = 0;
  joySt.throttle = 0;
  joySt.rudder = 0;
  joySt.hatSw1 = 0;
  joySt.hatSw2 = 0;
  joySt.buttons = 0;
}

void loop(){
  joySt.xAxis = analogRead(A0)/4;
  joySt.yAxis = analogRead(A1)/4;
  joySt.zAxis = analogRead(A2)/4;
  joySt.xRotAxis = analogRead(A3)/4;
  joySt.yRotAxis = analogRead(A4)/4;
  char customKey = customKeypad.getKey();
  joySt.buttons = 0;
  if (customKey){
    joySt.buttons = values[customKey-1];
    //Serial.println(joySt.buttons,BIN);
    //Serial.println(joySt.buttons,HEX);
    //joySt.buttons = 0x100;
  }
  Joystick.setState(&joySt);

  delay(10);
}