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10.27.2008 at 12:12AM PDT, ID: 23849652
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7.7

does this code for XInput look correct?

Asked by WriterOfCode in Game Programming, Miscellaneous Hardware

Tags: ,

I'm trying to get an XBOX 360 controller to work with a small game engine which has certain requirements for what the function can return and the parameters it can take. Therefore, the below code has to return *char.

No matter what I seem to do, I get a report in from the game engine which says that the controller is disconnected. Worse, I always get "160" back from this:

DWORD Result = XInputGetState(controllerNum, &controllerState);

Does anything look obviously wrong in the code below?

The correct controller drivers are installed, and the controllers work fine with other programs.
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extern "C" R_CONTROLLER_API char *GetButtonPress(int n,char *v[])
{
   static char buf[500];
   *buf=0;
   ostringstream SS;
   XINPUT_STATE controllerState;
   DWORD dwResult;
   ZeroMemory(&controllerState, sizeof(XINPUT_STATE));
   int controllerNum = *(int *)v;
      
   
   if( (controllerState.Gamepad.sThumbLX < XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE && 
     controllerState.Gamepad.sThumbLX > -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) && 
    (controllerState.Gamepad.sThumbLY < XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE && 
     controllerState.Gamepad.sThumbLY > -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) )
    {	
        controllerState.Gamepad.sThumbLX = 0;
        controllerState.Gamepad.sThumbLY = 0;
    }
 
    if( (controllerState.Gamepad.sThumbRX < XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE && 
     controllerState.Gamepad.sThumbRX > -XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE) && 
    (controllerState.Gamepad.sThumbRY < XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE && 
    controllerState.Gamepad.sThumbRY > -XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE) ) 
    {
        controllerState.Gamepad.sThumbRX = 0;
        controllerState.Gamepad.sThumbRY = 0;
    }
   dwResult = XInputGetState(controllerNum, &controllerState);
 
/* For debugging, this snippet never finds any of the key presses
   if((XINPUT_GAMEPAD_A & dwResult)==XINPUT_GAMEPAD_A)
	Log2File("A");
   if((XINPUT_GAMEPAD_B & dwResult)==XINPUT_GAMEPAD_B)
	Log2File("B");
   if((XINPUT_GAMEPAD_X & dwResult)==XINPUT_GAMEPAD_X)
	Log2File("X");
   if((XINPUT_GAMEPAD_Y & dwResult)==XINPUT_GAMEPAD_Y)
	Log2File("Y");
*/
 
 
   SS << dwResult;
   strcat(buf,SS.str().c_str());
   Log2File(buf);
   return buf;
  
}
 
 
 
 
extern "C" __declspec(dllexport) char *IsConnected(int n,char *v[])
{
    XINPUT_STATE controllerState;
    int controllerNum = *(int *)v;
	ZeroMemory(&controllerState, sizeof(XINPUT_STATE)); 
 
    // Get the state
    DWORD Result = XInputGetState(controllerNum, &controllerState);
 
    if(Result == ERROR_SUCCESS)
    {
        return "true"; 
    }
    else
    {
        return "false";
    }
}
[+][-]10.27.2008 at 06:47AM PDT, ID: 22812567

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About this solution

Zones: Game Programming, Miscellaneous Hardware
Tags: VC++, XInput, DirectX
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Solution Provided By: jgordos
Participating Experts: 1
Solution Grade: B
 
 
[+][-]10.28.2008 at 08:31PM PDT, ID: 22828326

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[+][-]10.29.2008 at 08:02AM PDT, ID: 22831849

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[+][-]10.29.2008 at 08:44PM PDT, ID: 22837890

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