Wiimote integration on Mac

Download Code File

This resource allow you to use the wiimote (and only the wiimote; I don't use the nunchuk) on Mac OSX without any other bluetooth adapter than the integrated one.

It works from 10.4 to 10.5 (direct bluetooth framework needed wasn't available before 10.4).
Tested with XCode 2.4 and 3.1, on mac OSX?4 and X.5, on a MacMini (core Solo and Core Duo), Mac Book Pro, and PowerBook G4 (a long time ago).

Get the linked file and uncompress it. You will get a 'wiimac' folder to copy into the 'engine' folder of TGE 1.52.

Then, in XCode, right-click on your root TGE project ('torque_xcode_2_2_UB') and 'add existing files', choosing the wiimac folder.

In XCode, visit this new folder, and check the '.m' AND '.mm' files; uncheck the '.h' files.

Be sure that the 'macCocoaWii.mm' file will compile with the objectiveC++ compiler (by get Infos on this file).

In the 'frameworks' section, in sub-section 'System Frameworks', right-click 'add existing framework', and select '/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/IOBluetooth.framework' to add to your project.

In 'Project Settings', select 10.4 as your base SDK.

//--------------------------------------------------------------------------------
In 'platform/event.h' :
//--------------------------------------------------------------------------------
- in 'enum KeyCodes' section,
- between 'KEY_BUTTON31'
- and 'KEY_ANYKEY',
- add

WIIMOTEKEY_A      = 0x0120,
WIIMOTEKEY_B      = 0x0121,
WIIMOTEKEY_PLUS   = 0x0122,
WIIMOTEKEY_MINUS  = 0x0123,
WIIMOTEKEY_HOME   = 0x0124,
WIIMOTEKEY_1      = 0x0125,
WIIMOTEKEY_2      = 0x0126,
WIIMOTEKEY_LEFT   = 0x0127,
WIIMOTEKEY_RIGHT  = 0x0128,
WIIMOTEKEY_UP     = 0x0129,
WIIMOTEKEY_DOWN   = 0x012A,

- in 'enum JoystickCodes' section,
- after 'SI_RPOV2', add

,
SI_WIIMOTEMOVE_YAW   = 0x218,
SI_WIIMOTEMOVE_PITCH = 0x219

- in 'enum InputDeviceTypes' section,
- after 'JoystickDeviceType', add

, WiimoteDeviceType

//--------------------------------------------------------------------------------
In 'platformMacCarb/macCarbEvents.cc' :
//--------------------------------------------------------------------------------
- after the 'include' section, add :

typedef UInt16 WiiButtonType;
#include "WiiRemote_codes.h"
extern void wiimote_stop();

- in function '_OnAppEvent',
- replace the 'case kEventAppQuit:' with :

case kEventAppQuit:
         // quit command from menu

            [b]wiimote_stop();[/b]

         Platform::postQuitMessage(0);
         propagateEvent = true;
         break;

- at the end of the file, add :

// got data from Wii controller

// void _OnWiiDataNB(float ax, float ay, float az, bool aBtnDown, bool aBtnUp, bool bBtn)

void _OnWiiDataNB(float ax, float ay, float az, float roll, float pitch, unsigned short btnChangedToDown, unsigned short btnChangedToUp)
{
//	fprintf(stderr, "_OnWiiDataNB : %f %f %f %d %d\n",ax, ay, az, btnChangedToDown, btnChangedToUp);
	InputEvent event;
	
	event.deviceType = WiimoteDeviceType;
	event.deviceInst = 0;
	event.objInst    = 0;
	event.modifier   = 0;
	event.ascii      = 0;
	event.action     = SI_MOVE;

        event.objType = SI_XAXIS;
        event.fValue  = F32(ax);
        Game->postEvent(event);

        event.objType = SI_YAXIS;
        event.fValue  = F32(ay);
        Game->postEvent(event);

        event.objType = SI_ZAXIS;
        event.fValue  = F32(az);
        Game->postEvent(event);

        event.objType = SI_WIIMOTEMOVE_YAW;
        event.fValue  = F32(roll);
        Game->postEvent(event);

        event.objType = SI_WIIMOTEMOVE_PITCH;        
        event.fValue  = F32(pitch);
        Game->postEvent(event);

	event.deviceType = WiimoteDeviceType;
	event.deviceInst = 0;
	event.objType    = SI_BUTTON;
	event.modifier   = 0;
	event.ascii      = 0;
        event.action     = SI_MAKE;
        event.fValue     = 1.0;
	
	if( btnChangedToDown & kWiiRemoteAButton )     {   event.objInst    = WIIMOTEKEY_A;        Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteBButton )     {   event.objInst    = WIIMOTEKEY_B;        Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemotePlusButton )  {   event.objInst    = WIIMOTEKEY_PLUS;     Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteMinusButton ) {   event.objInst    = WIIMOTEKEY_MINUS;    Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteHomeButton )  {   event.objInst    = WIIMOTEKEY_HOME;     Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteOneButton )   {   event.objInst    = WIIMOTEKEY_1;        Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteTwoButton )   {   event.objInst    = WIIMOTEKEY_2;        Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteLeftButton )  {   event.objInst    = WIIMOTEKEY_LEFT;     Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteRightButton ) {   event.objInst    = WIIMOTEKEY_RIGHT;    Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteUpButton )    {   event.objInst    = WIIMOTEKEY_UP;       Game->postEvent(event);   }
	if( btnChangedToDown & kWiiRemoteDownButton )  {   event.objInst    = WIIMOTEKEY_DOWN;     Game->postEvent(event);   }
 
    event.action     = SI_BREAK;
    event.fValue     = 0.0;

	if( btnChangedToUp & kWiiRemoteAButton )     {   event.objInst    = WIIMOTEKEY_A;        Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteBButton )     {   event.objInst    = WIIMOTEKEY_B;        Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemotePlusButton )  {   event.objInst    = WIIMOTEKEY_PLUS;     Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteMinusButton ) {   event.objInst    = WIIMOTEKEY_MINUS;    Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteHomeButton )  {   event.objInst    = WIIMOTEKEY_HOME;     Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteOneButton )   {   event.objInst    = WIIMOTEKEY_1;        Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteTwoButton )   {   event.objInst    = WIIMOTEKEY_2;        Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteLeftButton )  {   event.objInst    = WIIMOTEKEY_LEFT;     Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteRightButton ) {   event.objInst    = WIIMOTEKEY_RIGHT;    Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteUpButton )    {   event.objInst    = WIIMOTEKEY_UP;       Game->postEvent(event);   }
	if( btnChangedToUp & kWiiRemoteDownButton )  {   event.objInst    = WIIMOTEKEY_DOWN;     Game->postEvent(event);   }
 
}

extern void wiimote_rumble ( int );
extern void wiimote_calibrate ( int, int, int, int, int, int, int, int, int );
extern void wiimote_setLeds ( int, int, int, int );

void _onWiiDiscoveryError()
{
	Con::evaluatef("onWiiDiscoveryError();");
}

void _onWiiDiscoveryStart()
{
	Con::evaluatef("onWiiDiscoveryStart();");
}

void _onWiiDiscoveryStop()
{
	Con::evaluatef("onWiiDiscoveryStop();");
}

void _onWiiConnected()
{
//	Con::printf("Wii conn ect ed !!!");
	Con::evaluatef("onWiiConnected();");
}

void _onWiiDisconnected()
{
	Con::evaluatef("onWiiDisconnected();");
}

ConsoleFunction(wiiRumbleOn, void, 1, 1, "Wii remote starts rumble")
{
    wiimote_rumble( 1 );
}

ConsoleFunction(wiiRumbleOff, void, 1, 1, "Wii remote stops rumble")
{
    wiimote_rumble( 0 );
}

ConsoleFunction(wiiCalibrate, void, 10, 10, "Wii calibration : x1 y1 z1 with Wii button A up, x2 y2 z2 with IR sensor down, x3 y3 z3 with left side down")
{
    wiimote_calibrate( dAtoi(argv[1]), dAtoi(argv[2]), dAtoi(argv[3]), dAtoi(argv[4]), dAtoi(argv[5]), dAtoi(argv[6]), dAtoi(argv[7]), dAtoi(argv[8]), dAtoi(argv[9]) );
}

ConsoleFunction(wiisetLeds, void, 5, 5, "Wii leds light on/off (led1 led2 led3 led4)")
{
    wiimote_setLeds( dAtoi(argv[1]), dAtoi(argv[2]), dAtoi(argv[3]), dAtoi(argv[4]) );
}

//--------------------------------------------------------------------------------
In 'platformMacCarb/macCarbMain.cc' :
//--------------------------------------------------------------------------------
- after the includes, add :

extern void wiimote_Start( void );

- in the 'main' function,
- find and modify as this :

#if !defined(TORQUE_MULTITHREAD)
   // Install a one-shot timer to run the game, then call RAEL to install
   // the default application handler (which can't be called directly).
   EventLoopTimerRef timer;
   InstallEventLoopTimer(GetCurrentEventLoop(), 0, 0, 
                     NewEventLoopTimerUPP(_MacCarbRAELCallback), NULL, &timer);
    
   RunApplicationEventLoop();

[b]   wiimote_Start();[/b]

#else
   // Put the Torque application loop in one thread, and the event listener loop
   // in the other thread. The event loop must use the process's initial thread.

   // We need to cache a ref to the main event queue because GetMainEventQueue
   // is not thread safe pre 10.4 . 
   platState.mainEventQueue = GetMainEventQueue();

   // We need to install event handlers for interthread communication.
   // Events and some system calls must happen in the process's initial thread.
   MacCarbInstallTorqueCarbonEventHandlers();
   
	
   TorqueMainThread mainLoop;
   mainLoop.start();
   
[b]   wiimote_Start();[/b]

   if(!platState.headless)
   {
      //printf("starting RAEL\n");
      RunApplicationEventLoop();
   }
   mainLoop.join();

#endif

//--------------------------------------------------------------------------------
In 'sim/actionMap.cc' :
//--------------------------------------------------------------------------------
- in the 'ActionMap::getDeviceTypeAndInstance' function,
- find and modify as this :

} else if (dStrnicmp(pDeviceName, "joystick", dStrlen("joystick")) == 0) {
      deviceType      = JoystickDeviceType;
      offset = dStrlen("joystick");
[b]   } else if (dStrnicmp(pDeviceName, "wiimote", dStrlen("wiimote")) == 0) {
      deviceType      = WiimoteDeviceType;
      offset = dStrlen("wiimote");[/b]
   } else {
      return false;

- in the 'ActionMap::getDeviceName' function,
- find and modify as this :

case JoystickDeviceType:
      dSprintf(buffer, 16, "joystick%d", deviceInstance);
      break;

[b]     case WiimoteDeviceType:
      dSprintf(buffer, 16, "wiimote%d", deviceInstance);
      break;[/b]

     default:

- in the 'CodeMapping gVirtualMap[]' definition,
- between '{ "button31", SI_BUTTON, KEY_BUTTON31 },'
- and '//-------------------------------------- MOVE EVENTS', add this :

{ "wiimote_a",     SI_BUTTON, WIIMOTEKEY_A     },
   { "wiimote_b",     SI_BUTTON, WIIMOTEKEY_B     },
   { "wiimote_+",     SI_BUTTON, WIIMOTEKEY_PLUS  },
   { "wiimote_-",     SI_BUTTON, WIIMOTEKEY_MINUS },
   { "wiimote_home",  SI_BUTTON, WIIMOTEKEY_HOME  },
   { "wiimote_1",     SI_BUTTON, WIIMOTEKEY_1     },
   { "wiimote_2",     SI_BUTTON, WIIMOTEKEY_2     },
   { "wiimote_left",  SI_BUTTON, WIIMOTEKEY_LEFT  },
   { "wiimote_right", SI_BUTTON, WIIMOTEKEY_RIGHT },
   { "wiimote_up",    SI_BUTTON, WIIMOTEKEY_UP    },
   { "wiimote_down",  SI_BUTTON, WIIMOTEKEY_DOWN  },

- in the 'CodeMapping gVirtualMap[]' definition,
- in '// Mouse/Joystick axes:' section,
- between '{ "slider", SI_MOVE, SI_SLIDER },'
- and '//-------------------------------------- POV EVENTS', add this :

{ "yaw",   SI_MOVE,   SI_WIIMOTEMOVE_YAW      },
   { "pitch", SI_MOVE,   SI_WIIMOTEMOVE_PITCH      },

That should compile (crossing finger).

After that, in the script section :

//--------------------------------------------------------------------------------
In 'client/default_bind.cs' :
//--------------------------------------------------------------------------------
- you an add the following bindings :

moveMap.bind(wiimote0, "xaxis", accelerate);
moveMap.bind(wiimote0, "yaxis", WiiSteering);
moveMap.bind(wiimote0, "zaxis", accZ);

moveMap.bind(wiimote0, "yaw", wii_yaw);
moveMap.bind(wiimote0, "pitch", wii_pitch);

moveMap.bind( wiimote0, "wiimote_b", wii_b );
moveMap.bind( wiimote0, "wiimote_+", wii_plus );
moveMap.bind( wiimote0, "wiimote_-", wii_minus );
moveMap.bind( wiimote0, "wiimote_home", wii_home );
moveMap.bind( wiimote0, "wiimote_1", wii_1 );
moveMap.bind( wiimote0, "wiimote_2", wii_2 );
moveMap.bind( wiimote0, "wiimote_left", wii_left );
moveMap.bind( wiimote0, "wiimote_right", wii_right );
moveMap.bind( wiimote0, "wiimote_up", wii_up );
moveMap.bind( wiimote0, "wiimote_down", wii_down );

- and add the following functions :

function onWiiDiscoveryStart() { echo("Wii Discovery START..."); }
//--------------------------------------------------------------------------------
function onWiiDiscoveryStop() { echo("Wii Discovery STOP..."); }
//--------------------------------------------------------------------------------
function onWiiConnected() { echo("Wii CONNECTED"); 
	%t = 1000;
	%dt = 350;
	schedule( %t, 0, "wiiRumbleFor", 0.2 );
	schedule( %t, 0, "wiiSetLeds", 1, 0, 0, 0 );
	%t += %dt;
	schedule( %t, 0, "wiiRumbleFor", 0.2 );
	schedule( %t, 0, "wiiSetLeds", 0, 1, 0, 0 );
	%t += %dt;
	schedule( %t, 0, "wiiRumbleFor", 0.2 );
	schedule( %t, 0, "wiiSetLeds", 0, 0, 1, 0 );
	%t += %dt;
	schedule( %t, 0, "wiiRumbleFor", 0.2 );
	schedule( %t, 0, "wiiSetLeds", 0, 0, 0, 1 );
	%t += %dt;
	schedule( %t, 0, "wiiSetLeds", 0, 0, 0, 0 );
}
//--------------------------------------------------------------------------------
function onWiiDisconnected() { echo("Wii DISCONNECTED"); }
//--------------------------------------------------------------------------------
function wiiRumbleFor( %len )
{
    echo("wiiRumbleFor" SPC %len );
	wiiRumbleOn();
	schedule( %len*1000, 0, "wiiRumbleOff" );
}
//--------------------------------------------------------------------------------
function onWiiDiscoveryError()
{
    echo("Wii Discovery ERROR");
}
//--------------------------------------------------------------------------------
function onWiiDiscoveryStop()
{
   echo( "Wii Discovery Stop");
}
//--------------------------------------------------------------------------------

- you can call the rumble function :

wiiRumbleFor( 0.25 ); // in seconds

And now you should be ready to use the basic Wiimote functionnality on your Mac !

Your bluetooth must be ON.

When you start your application, it will scan automatically for Wiimote that are in discovery mode (4 leds flashing when your press buttons 1 & 2 together).
You will see messages in the console window.

If the application doesn' connect to your wiimote, press the red reset button on the wiimote in the battery closet.