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InputManager.h
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/****************************************************************************
** Copyright (C) 2012 me and my shadow developers
**
**
** This file may be used under the terms of the GNU General Public
** License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
#ifndef INPUTMANAGER_H
#define INPUTMANAGER_H
#include <SDL/SDL.h>
#include <vector>
#include <string>
enum InputManagerKeys{
INPUTMGR_UP,
INPUTMGR_DOWN,
INPUTMGR_LEFT,
INPUTMGR_RIGHT,
INPUTMGR_JUMP,
INPUTMGR_ACTION,
INPUTMGR_SPACE,
INPUTMGR_ESCAPE,
INPUTMGR_RESTART,
INPUTMGR_TAB,
INPUTMGR_SAVE,
INPUTMGR_LOAD,
INPUTMGR_SWAP,
INPUTMGR_TELEPORT,
INPUTMGR_SUICIDE,
INPUTMGR_SHIFT,
INPUTMGR_NEXT,
INPUTMGR_PREVIOUS,
INPUTMGR_MAX
};
class InputManager{
public:
InputManager();
~InputManager();
//get and set key code of each key.
int getKeyCode(InputManagerKeys key,bool isAlternativeKey);
void setKeyCode(InputManagerKeys key,int keyCode,bool isAlternativeKey);
//load and save key settings from config file.
void loadConfig();
void saveConfig();
//show the config screen.
void showConfig();
//get key name from key code
static std::string getKeyCodeName(int keyCode);
//update the key state, according to current SDL event, etc.
void updateState(bool hasEvent);
//check if there is KeyDown event.
bool isKeyDownEvent(InputManagerKeys key);
//check if there is KeyUp event.
bool isKeyUpEvent(InputManagerKeys key);
//check if specified key is down.
bool isKeyDown(InputManagerKeys key);
//open all joysticks.
void openAllJoysitcks();
//close all joysticks.
void closeAllJoysticks();
private:
//the key code of each key.
// - note of key code:
// 0 means this key is disabled (??)
// 1 to 4095 (0xFFF) means keyboard keys,
// currently SDLKey is less than 4095
// >= 4096: bit field value means joystick.
// 0xWWXXYYZZ
// WW = joystick index. currently unused, should be 0.
// XX = joystick button type: 1-axis 2-button 3-hat, currently ball is unsupported
// YY = joystick button index. (we assume joystick has at most 256 buttons)
// ZZ = value. if type=axis then value should be 1 or 0xFF.
// if type=button then it's unused.
// if type=hat then it's SDL_HAT_LEFT, SDL_HAT_RIGHT, SDL_HAT_UP or SDL_HAT_DOWN.
int keys[INPUTMGR_MAX];
int alternativeKeys[INPUTMGR_MAX];
//the bit-field flag array saves the key states.
// 0x1 means the key is down.
// 0x2 means KeyDown event.
// 0x4 means KeyUp event.
int keyFlags[INPUTMGR_MAX];
//contains all joysticks.
std::vector<SDL_Joystick*> joysticks;
//internal function
int getKeyState(int keyCode,int oldState,bool hasEvent);
};
extern InputManager inputMgr;
#endif //INPUTMANAGER_H

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