Joystick_macro.ino

#include <Joystick.h>


#define COLS 4
#define ROWS 4
#define PINS COLS+ROWS
#define BTNS COLS*ROWS
#define BTNCOUNT 12

// Pins 1-7 of the keypad connected to the Arduino respectively:
int timeout;  // timeout variable used in loop
int rowPins[ROWS] = {2, 3, 8, 9};
int colPins[COLS] = {4, 5, 6, 7};

enum _JOY_NUM {
  JOY_UP,
  JOY_RIGHT,
  JOY_DOWN,
  JOY_LEFT,
  JOY_L2,
  JOY_R2,
  JOY_LTHUMB,
  JOY_RTHUMB,
  JOY_L,
  JOY_X,
  JOY_START,
  JOY_A,
  JOY_Y,
  JOY_R,
  JOY_B,
  JOY_SELECT
};

#define PAD_A 1
#define PAD_B 2
#define PAD_X 3
#define PAD_Y 0
#define PAD_L 4
#define PAD_R 5
#define PAD_SELECT 8
#define PAD_START 9
#define PAD_LTHUMB 6
#define PAD_RTHUMB 7
#define PAD_L2 10
#define PAD_R2 11

#define PAD_HAT_START 100
#define PAD_UP 100
#define PAD_RIGHT 101
#define PAD_DOWN 102
#define PAD_LEFT 103
#define PAD_HAT_END 103



// ppsspp
//int BTNMAP[BTNS] = {2, 8, 0, 7, 6, 3, 9, 1, PAD_DOWN, PAD_RIGHT, PAD_UP, PAD_LEFT, 8, 9, 10, 11};
int BTNMAP[BTNS];
int PADMAP[5];


int prev[BTNS];
int val;
int num;

Joystick_ Joystick(
  JOYSTICK_DEFAULT_REPORT_ID, // hidReportId
  JOYSTICK_TYPE_GAMEPAD, // joystickType - JOYSTICK_TYPE_JOYSTICK, JOYSTICK_TYPE_GAMEPAD, JOYSTICK_TYPE_MULTI_AXIS
  BTNS, // buttonCount
  1, // hatSwitchCount
  false, // includeXAxis
  false, // includeYAxis
  false, // includeZAxis
  false, // includeRxAxis
  false, // includeRyAxis
  false, // includeRzAxis
  false, // includeRudder
  false, // includeThrottle
  false, // includeAccelerator
  false, // includeBrake
  false // includeSteering
);

void setup()
{
  BTNMAP[JOY_LEFT] = PAD_LEFT;
  BTNMAP[JOY_UP] = PAD_UP;
  BTNMAP[JOY_RIGHT] = PAD_RIGHT;
  BTNMAP[JOY_DOWN] = PAD_DOWN;
  BTNMAP[JOY_A] = PAD_A;
  BTNMAP[JOY_B] = PAD_B;
  BTNMAP[JOY_X] = PAD_X;
  BTNMAP[JOY_Y] = PAD_Y;
  BTNMAP[JOY_L] = PAD_L;
  BTNMAP[JOY_R] = PAD_R;
  BTNMAP[JOY_SELECT] = PAD_SELECT;
  BTNMAP[JOY_START] = PAD_START;
  BTNMAP[JOY_LTHUMB] = PAD_LTHUMB;
  BTNMAP[JOY_RTHUMB] = PAD_RTHUMB;
  BTNMAP[JOY_L2] = PAD_L2;
  BTNMAP[JOY_R2] = PAD_R2;

  for (int i = 0; i < BTNS; i++) {
    prev[i] = 0;
    if (BTNMAP[i] >= PAD_HAT_START) {
      PADMAP[BTNMAP[i] - PAD_HAT_START] = i;
    }
  }
  PADMAP[4] = PADMAP[0];
  resetPins();

  Joystick.begin();
}

void loop()
{
  checkJoystickStatus();  // read which buttons are pressed
  delay(2);
}

void resetPins() {
  for (int i = 0; i < ROWS; i++) {
    pinMode(rowPins[i], INPUT);  // Set all keypad pins as inputs
    digitalWrite(rowPins[i], HIGH);  // pull all keypad pins high
  }
  for (int i = 0; i < COLS; i++) {
    pinMode(colPins[i], INPUT);  // Set all keypad pins as inputs
    digitalWrite(colPins[i], HIGH);  // pull all keypad pins high
  }
}

void sendChopung() {
    Joystick.setHatSwitch(0, 90);
    delay(5);
    Joystick.setHatSwitch(0, -1);
    delay(5);
    Joystick.setHatSwitch(0, 180);
    delay(3);
    Joystick.setHatSwitch(0, 135);
    Joystick.setButton(PAD_Y, 1);
    delay(5);
    Joystick.setHatSwitch(0, -1);
    Joystick.setButton(PAD_Y, 0);
}

void sendChange(int n, int v) {
  if (n == JOY_L2 && v) {
    sendChopung();
    
  }
  
  if (BTNMAP[n] < PAD_HAT_START) { // Button
    Joystick.setButton(BTNMAP[n], v);
  } else { // Joystick
    int radius = -1;
    for (int i = 0; i < 4; i++) {
      if (prev[PADMAP[i]]) {
        radius = i * 90;
        if (prev[PADMAP[i + 1]]) {
          radius += 45;
        }
        if (i > 0 || !prev[PADMAP[3]]) {
          break;
        }
      }
    }
    Joystick.setHatSwitch(0, radius);
  }
}

/* checkJoystickStatus(): This function returns an int that represents
  the status of the 12-button keypad. Only the 12 LSb's of the return
  value hold any significange. Each bit represents the status of a single
  key on the button pad. '1' is bit 0, '2' is bit 1, '3' is bit 2, ...,
  '#' is bit 11.

  This function doesn't work for multitouch.
*/
void checkJoystickStatus()
{
  int keypadStatus = 0;  // this will be what's returned

  /* initialize all pins, inputs w/ pull-ups */
  resetPins();

  for (int row = 0; row < ROWS; row++) { // initial for loop to check all 4 rows
    pinMode(rowPins[row], OUTPUT);  // set the row pin as an output
    digitalWrite(rowPins[row], LOW);  // pull the row pins low
    for (int col = 0; col < COLS; col++) { // embedded for loop to check all 3 columns of each row
      val = 1 - digitalRead(colPins[col]);
      num = row * ROWS + col;
      if (prev[num] != val) {
        prev[num] = val;
        sendChange(num, val);
      }
    }
    pinMode(rowPins[row], INPUT);  // reset the row pin as an input
    digitalWrite(rowPins[row], HIGH);  // pull the row pin high
  }

  return keypadStatus;
}