Phone Compatible Game Controller Using Teensy 3.6

Joystick.button(1, digitalRead(0));

Joystick.button(1, !digitalRead(0));

Joystick.button(1, !digitalRead(0));
Joystick.button(2, !digitalRead([B]1[/B]));

Joystick.button(16, !digitalRead(0));

Joystick.button(1, !digitalRead(0));   //the "0" is pin number?
Joystick.button(2, !digitalRead(1));

const int numButtons = 16;  // 16 for Teensy, 32 for Teensy++

void setup() {
  // you can print to the serial monitor while the joystick is active!
  Serial.begin(9600);
  // configure the joystick to manual send mode.  This gives precise
  // control over when the computer receives updates, but it does
  // require you to manually call Joystick.send_now().
  Joystick.useManualSend(true);
  for (int i=0; i<numButtons; i++) {
    pinMode(i, INPUT_PULLUP);
  }
  Serial.println("Begin Complete Joystick Test");
}

byte allButtons[numButtons];
byte prevButtons[numButtons];
int angle=0;

void loop() {
  // read 6 analog inputs and use them for the joystick axis
  Joystick.X(analogRead(1));
  Joystick.Y(analogRead(2));
  Joystick.Z(analogRead(3));
  Joystick.Zrotate(analogRead(4));
  //Joystick.sliderLeft(analogRead(0));
  //Joystick.sliderRight(analogRead(1));
  Joystick.button(1, !digitalRead(0));
  Joystick.button(2, !digitalRead(1));
  
  // read digital pins and use them for the buttons
  for (int i=0; i<numButtons; i++) {
    if (digitalRead(i)) {
      // when a pin reads high, the button is not pressed
      // the pullup resistor creates the "on" signal
      allButtons[i] = 0;
    } else {
      // when a pin reads low, the button is connecting to ground.
      allButtons[i] = 1;
    }
    Joystick.button(i + 1, allButtons[i]);
  }

  // make the hat switch automatically move in a circle
  angle = angle + 1;
  if (angle >= 360) angle = 0;
  Joystick.hat(-1);
  
  // Because setup configured the Joystick manual send,
  // the computer does not see any of the changes yet.
  // This send_now() transmits everything all at once.
  Joystick.send_now();
  
  // check to see if any button changed since last time
  boolean anyChange = false;
  for (int i=0; i<numButtons; i++) {
    if (allButtons[i] != prevButtons[i]) anyChange = true;
    prevButtons[i] = allButtons[i];
  }
  
  // if any button changed, print them to the serial monitor
  if (anyChange) {
    Serial.print("Buttons: ");
    for (int i=0; i<numButtons; i++) {
      Serial.print(allButtons[i], DEC);
    }
    Serial.println();
  }
  
  // a brief delay, so this runs "only" 200 times per second
  delay(5);
}

const int numButtons = 16

Joystick.button(1, !digitalRead(0));
Joystick.button(2, !digitalRead(1));

pinMode(i, INPUT_PULLUP);

// WE CHANGED TO:

pinMode(i, INPUT_PULLDOWN);

 // read digital pins and use them for the buttons
  for (int i=0; i<numButtons; i++) {
    if (digitalRead(i)) {
      // when a pin reads high, the button is not pressed
      // the pullup resistor creates the "on" signal
      allButtons[i] = 0;
    } else {
      // when a pin reads low, the button is connecting to ground.
      allButtons[i] = 1;
    }
    Joystick.button(i + 1, allButtons[i]);
  }

//WE CHANGED TO:

 // read digital pins and use them for the buttons
  for (int i=0; i<numButtons; i++) {
    if (digitalRead(i)) {
      // when a pin reads high, the button is not pressed
      // the pullup resistor creates the "on" signal
      allButtons[i] = 1;                                                 //Notice the number change
    } else {
      // when a pin reads low, the button is connecting to ground.
      allButtons[i] = 0;                                                 //Notice the number change
    }
    Joystick.button(i + 1, allButtons[i]);
  }

Bounce GBZ_LEFT = Bounce(2, 10);
  Bounce GBZ_UP = Bounce(0, 10);  // 10 = 10 ms debounce time
  Bounce GBZ_DOWN = Bounce(1, 10);  // which is appropriate for
  Bounce GBZ_RIGHT = Bounce(3, 10);  // most mechanical pushbuttons
  Bounce GBZ_SELECT = Bounce(9, 10);
  Bounce GBZ_START = Bounce(8, 10);
  Bounce GBZ_X = Bounce(6, 10);
  Bounce GBZ_Y = Bounce(7, 10);
  Bounce GBZ_B = Bounce(5, 10);
  Bounce GBZ_A = Bounce(4, 10);
  Bounce GBZ_L = Bounce(10, 10);
  Bounce GBZ_R = Bounce(11, 10);

Joystick.button(button_ID, boolean_value_depending_on_the_input)

Joystick.button(button_ID, boolean_value_depending_on_the_input)

Joystick.button(X, 0)

Joystick.button(2, buttonX);
Joystick.button(5, buttonY);

if (buttonUp){
   if (buttonRight) angle = 45;
   else if (buttonLeft) angle = 315;
   else angle = 0;
}
else if (buttonDown) {
   if (buttonRight) angle = 135;
   else if (buttonLeft) angle = 225;
   else angle = 180;
}
else {
   if (buttonRight) angle = 90;
   else if (buttonLeft) angle = 270;
   else angle = -1;
}
Joystick.hat(angle);