// Simple example application that shows how to read four Arduino
// digital pins and map them to the USB Joystick library.
//
// The digital pins 9, 10, 11, and 12 are grounded when they are pressed.
//
// NOTE: This sketch file is for use with Arduino Leonardo and
//       Arduino Micro only.
//
// by Matthew Heironimus
// 2015-11-20
//--------------------------------------------------------------------

#include <Joystick.h>

void setup() {
  // Initialize Button Pins
  pinMode(0, INPUT_PULLUP);
  pinMode(1, INPUT_PULLUP);
  pinMode(2, INPUT_PULLUP);
  pinMode(3, INPUT_PULLUP);
  pinMode(4, INPUT_PULLUP);
  pinMode(5, INPUT_PULLUP);
  pinMode(6, INPUT_PULLUP);
  pinMode(7, INPUT_PULLUP);
  pinMode(8, INPUT_PULLUP);
  pinMode(9, INPUT_PULLUP);
  pinMode(10, INPUT_PULLUP);
  pinMode(11, INPUT_PULLUP);
  pinMode(12, INPUT_PULLUP);
  pinMode(13, INPUT_PULLUP);
  pinMode(14, INPUT_PULLUP);
  pinMode(15, INPUT_PULLUP);
  pinMode(16, INPUT_PULLUP);
  // Initialize Joystick Library
  Joystick.begin();
}

// Constant that maps the phyical pin to the joystick button.
const int pinToButtonMap = 0;
const int deadZone = 30;

// Last state of the button
int lastButtonState[17] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
//int lastButtonState[4] = {0,0,0,0};
int X=0;
int Y=0;

void loop() {

  // Read pin values
  for (int index = 0; index < 17; index++)
  {
    int currentButtonState = !digitalRead(index + pinToButtonMap);
    if (currentButtonState != lastButtonState[index])
    {
      Joystick.setButton(index, currentButtonState);
      lastButtonState[index] = currentButtonState;
    }
  }
  X=analogRead(A0);
  Y=analogRead(A1);
  X=map(X,0,1023,127,-127);
  Y=map(Y,0,1023,-127,127);
  Joystick.setXAxis(X);
  Joystick.setYAxis(Y);

  delay(50);
}

#include <Joystick.h>

Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,JOYSTICK_TYPE_GAMEPAD,
  5, 1,                  // Button Count, Hat Switch Count
  true, true, false,     // X and Y, but no Z Axis
  false, false, false,   // No Rx, Ry, or Rz
  false, false,          // No rudder or throttle
  false, false, false);  // No accelerator, brake, or steering


int lastDpadState[]={0,0,0,0};
int lastButtonState[]={0,0,0,0,0,0,0};
int lastSWState=0;

void setup() {
  // Initialize Button Pins
  pinMode(10, INPUT_PULLUP);//A
  pinMode(14, INPUT_PULLUP);//B
  pinMode(15, INPUT_PULLUP);//X
  pinMode(16, INPUT_PULLUP);//Y
 
  pinMode(6, INPUT_PULLUP);//Up
  pinMode(8, INPUT_PULLUP);//down
  pinMode(7, INPUT_PULLUP);//left
  pinMode(9, INPUT_PULLUP);//right
 
  pinMode(2, INPUT_PULLUP);//HAT_SW

  pinMode(11, INPUT_PULLUP);
  pinMode(12, INPUT_PULLUP);
  pinMode(13, INPUT_PULLUP);
 /*not using pin Num
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);

  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  digitalWrite(13,LOW);  
  */
  //A0=X A1=Y

  // Initialize Joystick Library
  Joystick.begin();
  Joystick.setXAxisRange(-1023, 0);
  Joystick.setYAxisRange(-1023, 0);

  Joystick.setRxAxisRange(-1, 1);
  Joystick.setRyAxisRange(-1, 1);
}

void Analog()
{
  int x = analogRead(A0);
  int y = analogRead(A1);
 
  Joystick.setXAxis(-x);
  Joystick.setYAxis(-y);
}

void Buttons()
{
  for(int index=0; index < 7 ;index++)
  {
    int currentButtonState = !digitalRead(index+10);
    if (currentButtonState !=lastButtonState[index])
    {
      //Joystick.setButton(index, currentButtonState);
      switch (index)
      {
        case 0://A
          Joystick.setButton(0, currentButtonState);
          break;

        case 4://B  
        case 5://X
        case 6://Y
          Joystick.setButton(index-3,currentButtonState);
          break;
          
        default:
          break;
      }
      
      lastButtonState[index]=currentButtonState;
    }
  }
 
}


void Dpad()
{
  for (int index = 0; index < 4; index++)
  {
      int currentDpadState = !digitalRead(index+6);
      if (currentDpadState != lastDpadState[index])
      {
        switch(index){
          case 0://UP
            if (currentDpadState == 1) {
              Joystick.setRyAxis(1);
            } else {
              Joystick.setRyAxis(0);
            }
            break;
          
          case 1://left
          if (currentDpadState == 1) {
            Joystick.setRxAxis(-1);
          } else {
            Joystick.setRxAxis(0);
          }
          break;
            
          case 2://down
          if (currentDpadState == 1) {
            Joystick.setRyAxis(-1);
          } else {
            Joystick.setRyAxis(0);
          }
          break;

          case 3://right
          if (currentDpadState == 1) {
            Joystick.setRxAxis(1);
          } else {
            Joystick.setRxAxis(0);
          }
          break;
            
        }
        lastDpadState[index] = currentDpadState;
      }
  }
}


void HAT()
{
  bool valueChanged =false;
  for (int index = 0; index < 4; index++)
  {
      int currentDpadState = !digitalRead(index+6);
      if (currentDpadState != lastDpadState[index])
      {
        valueChanged =true;
        lastDpadState[index] = currentDpadState;
      }    
  }

 
  if (valueChanged) {
      
    if ((lastDpadState[0] == 0)
      && (lastDpadState[1] == 0)
      && (lastDpadState[2] == 0)
      && (lastDpadState[3] == 0)) {
        Joystick.setHatSwitch(0, -1);//HatSwitch0 is not changed
    }
    if (lastDpadState[0] == 1) {
      Joystick.setHatSwitch(0, 0);
    }
    if (lastDpadState[1] == 1) {
      Joystick.setHatSwitch(0, 90);
    }
    if (lastDpadState[2] == 1) {
      Joystick.setHatSwitch(0, 180);
    }
    if (lastDpadState[3] == 1) {
      Joystick.setHatSwitch(0, 270);
    }
  }//value Changed()
}
void SW()
{
  int currentSWState = !digitalRead(2);
  if(lastSWState != currentSWState)
  {
    Joystick.setButton(4, currentSWState);
    lastSWState=currentSWState;
  }
}

void loop()
{
  Analog();
  //Dpad();
  HAT();
  Buttons();
  SW();
  delay(2);
}

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