guncotroller.cc

struct packet
{
  char name[16];
  unsigned short id;
  char state_01;              // 0: safety / 1: fire / 2: reload  :==> safety / reload는 무시. 
  char state_02;              // reserved.
  unsigned short buttonState; // buttons
  float thumb_x;              // joystick x-axis
  float thumb_y;              // joystick y-axis
};

#define WEAPON_FIRE 0x0001    // weapon trigger
#define BUTTON_IK   0x0001    // lock button 

const int ButtonCount = 14;
const unsinged short controller::buttonInputID[buttonCount] = 
		{
			Button_A, // 0x0001
			Button_B, // 0x0002     
			Button_C, // 0x0004     
			Button_D, // 0x0008    
			Button_E, // 0x0010    
			Button_F, // 0x0020             
			Button_G, // 0x0040
			Button_H, // 0x0080    
			Button_I, // 0x0100  
			Button_J, // 0x0200 
			Button_K, // 0x1000
			Button_L, // 0x2000             
			Button_M, // 0x4000             
			Button_N  // 0x8000
		};

void controller::update(float deltaTime)
{
  ...
  // received packet from the gun controller.
  struct packet recv_data;

  unsigned int size = sizeof(packet);
  memcpy(&recv_data, data, size);  
  
  switch (recv_data.state_01)
  {
    case '0': // turn on the power button
      _powerOn = true;
      _enableIK = (XCONTROLLER_BUTTON_IK & recv_data.buttonState) ? true : false;
      break;
		  
    case '1': // fire action
      _weaponFire = (XCONTROLLER_WEAPON_FIRE & recv_data.buttonState) ? true : false;
      break;
		  
    case '2': // lock button
      _enableIK = (XCONTROLLER_BUTTON_IK & recv_data.buttonState) ? true : false;
      break;
		  
    case '3': // button
      {
        unsigned short buttonStates = recv_data.buttonStaste;
        for (int i=0; i<buttonCount; ++i)
        {
            // !!check whether the button is pressed or not!!
            bool pressed = (butonStates & buttonInputID[i]) != 0;
            setButtonPressed(i, pressed);
        }

        // thumbstick
        _thumbstick_posx = recv_data.thumb_x;
        _thumbstick_posy = recv_data.thumb_y;	      
      }
      break;
  }
  	
}

void controller::setButtonPressed( ButtonID buttonID, bool pressed )
{
	if ( buttonID >= ButtonCount )
		return;
	if ( !hasButton(buttonID) )
		return;
	if ( _iButtonPressed[buttonID] == pressed )
		return;

	_isButtonPressed[buttonID] = pressed;

	// Notify
	for ( Listeners::iterator itr=mListeners.begin(); itr!=mListeners.end(); ++itr )
		(*itr)->onComponentChanged( this, ComponentType_Button, buttonID );
}

bool controller::isButtonPressed(ButtonID buttonID)
{
  return _isButtonPressed[buttonID];
}

• 버튼의 개수가 많기 때문에 xbox controller 와 같이 & 연산으로 버튼의 press 유무를 검사.
• packet 구조는 이전 버전의 packet 구조에서 buttonState, thumbStick (x, y) 를 추가.
• safety / reload는 무시.