Code/CryEngine/CryInput/SDLPad.h

   1 // Copyright 2001-2017 Crytek GmbH / Crytek Group. All rights reserved.
   2
   3 /*************************************************************************
   4    -------------------------------------------------------------------------
   5    $Id$
   6    $DateTime$
   7    Description: GamePad Input implementation for Linux using SDL
   8    -------------------------------------------------------------------------
   9    History:
  10    - Jan 20,2014:       Created by Leander Beernaert
  11
  12 *************************************************************************/
  13
  14 #pragma once
  15
  16 #if defined(USE_LINUXINPUT)
  17
  18         #include <SDL.h>
  19         #include "LinuxInput.h"
  20 // We need a manager, since all the input for each Game Pad is collected
  21 // in the same queue. If we were to update the game pads seperately
  22 // they would consume each other's events.
  23
  24 class CSDLPad : public CLinuxInputDevice
  25 {
  26 public:
  27
  28         CSDLPad(CLinuxInput& input, int device);
  29
  30         virtual ~CSDLPad();
  31
  32         // IInputDevice overrides
  33         virtual int  GetDeviceIndex() const { return m_deviceNo; }
  34         virtual bool Init();
  35         virtual void Update(bool bFocus);
  36         virtual void ClearAnalogKeyState(TInputSymbols& clearedSymbols);
  37         virtual void ClearKeyState();
  38         virtual bool SetForceFeedback(IFFParams params);
  39         // ~IInputDevice
  40
  41         int          GetInstanceId() const;
  42
  43         void         HandleAxisEvent(const SDL_JoyAxisEvent& evt);
  44
  45         void         HandleHatEvent(const SDL_JoyHatEvent& evt);
  46
  47         void         HandleButtonEvent(const SDL_JoyButtonEvent& evt);
  48
  49         void         HandleConnectionState(const bool connected);
  50 private:
  51         static float DeadZoneFilter(int input);
  52
  53         bool         OpenDevice();
  54
  55         void         CloseDevice();
  56
  57 private:
  58         SDL_Joystick* m_pSDLDevice;
  59         SDL_Haptic*   m_pHapticDevice;
  60         int           m_curHapticEffect;
  61         int           m_deviceNo;
  62         int           m_handle;
  63         bool          m_connected;
  64         bool          m_supportsFeedback;
  65         float         m_vibrateTime;
  66 };
  67
  68 class CSDLPadManager
  69 {
  70 public:
  71
  72         CSDLPadManager(CLinuxInput& input);
  73
  74         ~CSDLPadManager();
  75
  76         bool Init();
  77
  78         void Update(bool bFocus);
  79
  80 private:
  81         bool     AddGamePad(int deviceIndex);
  82
  83         bool     RemovGamePad(int instanceId);
  84
  85         CSDLPad* FindPadByInstanceId(int instanceId);
  86         CSDLPad* FindPadByDeviceIndex(int deviceIndex);
  87 private:
  88
  89         typedef std::vector<CSDLPad*> GamePadVector;
  90
  91         CLinuxInput&  m_rLinuxInput;
  92         GamePadVector m_gamePads;
  93 };
  94
  95 #endif