oasisinputsystembase.cpp

使用stl技术,(还没看,是听说的)

/******************************************************************************
 * This source file is part of Bad Camel Gaming
 * Copyright (C) 2003  Zephie Greyvenstein
 * See Readme.html for acknowledgements
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *****************************************************************************/

/******************************************************************************
 * FILENAME    : oasisInputSystemBase.cpp
 * DESCRIPTION : The input system base
 * AUTHOR      : Zephie Greyvenstein
 *****************************************************************************/

#include "oasisInputSystemBase.h"
#include "oasisGraphicsSystem.h"
#include "oasisConfiguration.h"
#include "oasisVector3.h"
#include "oasisMouseListener.h"

namespace Oasis {
  
  inputSystemBase::inputSystemBase( ) : keyDowns( INPUT_KEY_LIMIT ) {
    // Create the event processor
    eventProcessor = new Ogre::EventProcessor( );
   
    if ( !eventProcessor ) {
      oasisError( exception::ET_NULL_POINTER,
       "Could not create event processor for input system",
       "inputSystemBase::( )" );
    }
   
    // Initialise the event processor      
    eventProcessor->initialise( graphicsSystem::get( ).getWindow( ) );
   
    // Create the cursor
    //OverlayManager::getSingleton( ).createCursorOverlay( );
    // Grab the input reader handle
    inputReader = eventProcessor->getInputReader( );
    
    inputReader->setBufferedInput( true, true );
 
    // Get it going
    eventProcessor->startProcessingEvents( );
  
    // Clear the key downs   
    for ( boolVector::iterator it = keyDowns.begin( );
    it != keyDowns.end( ); it++ ) {
      ( *it ) = false;
    }
    
    // Register
    eventProcessor->addKeyListener( this );
    eventProcessor->addMouseMotionListener( this );
    eventProcessor->addMouseListener( this );
  }
  
  inputSystemBase::~inputSystemBase( ) {
    // Destroy the event processor
    if ( eventProcessor ) {
      delete eventProcessor;   
    }
    
    inputReader = NULL;
  }
  
  void inputSystemBase::addKeyListener( keyListener *newKeyListener ) {
    keyListeners.insert( newKeyListener );
  }
  
  void inputSystemBase::removeKeyListener( keyListener *oldKeyListener ) {
    keyListeners.erase( oldKeyListener );
  }

  void inputSystemBase::addMouseListener( mouseListener *newMouseListener ) {
    mouseListeners.insert( newMouseListener );
  }
  
  void inputSystemBase::removeMouseListener( mouseListener *oldMouseListener ) {
    mouseListeners.erase( oldMouseListener );
  }
  
  const bool inputSystemBase::isKeyDown( keyListener::KeyCode code ) const {   
    return keyDowns[ code ];
  }
  
  void inputSystemBase::keyClicked( Ogre::KeyEvent *event ) {
    keyListenerSet::iterator it;
    for( it = keyListeners.begin( ); it != keyListeners.end( ); ++it ) {
      ( *it )->keyClicked( ( keyListener::KeyCode )event->getKey( ),
         event->getKeyChar( ) );
    }
  }
  
  void inputSystemBase::keyPressed( Ogre::KeyEvent *event ) {  
    // Store that this is down
    keyDowns[ event->getKey( ) ] = true;

    keyListenerSet::iterator it;
    for( it = keyListeners.begin( ); it != keyListeners.end( ); ++it ) {
      ( *it )->keyPressed( ( keyListener::KeyCode )event->getKey( ),
         event->getKeyChar( ) );
    }
  }
  
  void inputSystemBase::keyReleased( Ogre::KeyEvent *event ) {
    // Store that this key is now up
    keyDowns[ event->getKey( ) ] = false;
  
    keyListenerSet::iterator it;
    for( it = keyListeners.begin( ); it != keyListeners.end( ); ++it ) {
      ( *it )->keyReleased( ( keyListener::KeyCode )event->getKey( ),
          event->getKeyChar( ) );
    }
  }
  
  void inputSystemBase::mouseMoved( Ogre::MouseEvent *event ) {
    mouseListenerSet::iterator it;
    for( it = mouseListeners.begin( ); it != mouseListeners.end( ); ++it ) {
      ( *it )->mouseMoved( vector3( event->getRelX( ),
            event->getRelY( ),
            event->getRelZ( ) ) );
    }
  }

  void inputSystemBase::mousePressed( Ogre::MouseEvent *event ) {
    mouseListenerSet::iterator it;
    for( it = mouseListeners.begin( ); it != mouseListeners.end( ); ++it ) {
      ( *it )->mousePressed( event->getButtonID( ), event->getClickCount( ) );
    }
  }
}