Torque2D/engine/source/platformEmscripten/EmscriptenInputManager.h

//-----------------------------------------------------------------------------
// Copyright (c) 2013 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------



#ifndef _EMSCRIPTENINPUTMANAGER_H_
#define _EMSCRIPTENINPUTMANAGER_H_

#include "collection/vector.h"
#include "platform/platformInput.h"
#include "platformEmscripten/platformEmscripten.h"

#include <SDL/SDL_events.h>

#define NUM_KEYS ( KEY_BUTTON31 + 1 )
#define KEY_FIRST KEY_ESCAPE

struct AsciiData
{
   struct KeyData
   {
      U16   ascii;
      bool  isDeadChar;
   };

   KeyData upper;
   KeyData lower;
   KeyData goofy;
};

extern AsciiData AsciiTable[NUM_KEYS];

typedef struct _SDL_Joystick;

struct JoystickAxisInfo
{
      S32 type;
      S32 minValue;
      S32 maxValue;
};

//------------------------------------------------------------------------------
class JoystickInputDevice : public InputDevice
{   
  public:
    JoystickInputDevice(U8 deviceID);
    ~JoystickInputDevice();
    
    bool activate();
    bool deactivate();
    bool isActive() { return( mActive ); }
    
    U8 getDeviceType() { return( JoystickDeviceType ); }
    U8 getDeviceID() { return( mDeviceID ); }
    const char* getName();
    const char* getJoystickAxesString();

    void loadJoystickInfo();
    void loadAxisInfo();
    JoystickAxisInfo& getAxisInfo(int axisNum) { return mAxisList[axisNum]; }

    bool process();
    void reset();
    
  private:
    bool mActive;
    U8 mDeviceID;
    SDL_Joystick* mStick;
    Vector<JoystickAxisInfo> mAxisList;
    Vector<bool> mButtonState;
    Vector<U8> mHatState;

    S32 mNumAxes; 
    S32 mNumButtons;
    S32 mNumHats;
    S32 mNumBalls;
};

//------------------------------------------------------------------------------
class UInputManager : public InputManager
{
   friend bool JoystickInputDevice::process(); // for joystick event funcs
   friend void JoystickInputDevice::reset(); 

   public:
      UInputManager();

      void init();
      bool enable();
      void disable();
      void activate();
      void deactivate();
      void setWindowLocked(bool locked);
      bool isActive()               { return( mActive ); }

      void onDeleteNotify( SimObject* object );
      bool onAdd();
      void onRemove();

      void process();

      bool enableKeyboard();
      void disableKeyboard();
      bool isKeyboardEnabled()      { return( mKeyboardEnabled ); }
      bool activateKeyboard();
      void deactivateKeyboard();
      bool isKeyboardActive()       { return( mKeyboardActive ); }

      bool enableMouse();
      void disableMouse();
      bool isMouseEnabled()         { return( mMouseEnabled ); }
      bool activateMouse();
      void deactivateMouse();
      bool isMouseActive()          { return( mMouseActive ); }          

      bool enableJoystick();
      void disableJoystick();
      bool isJoystickEnabled()      { return( mJoystickEnabled ); }
      bool activateJoystick();
      void deactivateJoystick();
      bool isJoystickActive()       { return( mJoystickActive ); }          

      void setLocking(bool enabled);
      bool getLocking() { return mLocking; }

      const char* getJoystickAxesString( U32 deviceID );
      bool joystickDetected()       { return mJoystickList.size() > 0; }
   private:
      typedef SimGroup Parent;
      // the following vector is just for quick access during event processing.
      // it does not manage the cleanup of the JoystickInputDevice objects
      Vector<JoystickInputDevice*> mJoystickList;

      bool mKeyboardEnabled;
      bool mMouseEnabled;
      bool mJoystickEnabled;

      bool mKeyboardActive;
      bool mMouseActive;
      bool mJoystickActive;

      bool mActive;

      // Device state variables
      S32 mModifierKeys;
      bool mKeyboardState[256];
      bool mMouseButtonState[3];

      // last mousex and y are maintained when window is unlocked
      S32 mLastMouseX;
      S32 mLastMouseY;

      void initJoystick();

      void resetKeyboardState();
      void resetMouseState();
      void resetInputState();

      void lockInput();
      void unlockInput();
      bool mLocking;

      void joyHatEvent(U8 deviceID, U8 hatNum, 
          U8 prevHatState, U8 currHatState);
      void joyButtonEvent(U8 deviceID, U8 buttonNum, bool pressed);
      void joyButtonEvent(const SDL_Event& event);
      void joyAxisEvent(const SDL_Event& event);
      void joyAxisEvent(U8 deviceID, U8 axisNum, S16 axisValue);
      void mouseButtonEvent(const SDL_Event& event);
      void mouseMotionEvent(const SDL_Event& event);
      void keyEvent(const SDL_Event& event);
      bool processKeyEvent(InputEvent &event);
};

#endif  // _EMSCRIPTENINPUTMANAGER_H_