ExampleFrameListener.h - DriveHQ Cloud IT/Storage service

Yes No
Do you want to visit DriveHQ English website?
ExampleFrameListener.h - Hosted on DriveHQ Cloud IT Platform
Arriba
Subir
Descargar
Compartir
Publicar
Nueva carpeta
Nuevo archivo
Copiar
Cortar
Eliminar
Pegar
Clasificación
Actualizar
Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\ExampleFrameListener.h
Girar
Efecto
Propiedad
Historial
/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2006 Torus Knot Software Ltd
Also see acknowledgements in Readme.html

You may use this sample code for anything you like, it is not covered by the
LGPL like the rest of the engine.
-----------------------------------------------------------------------------
*/
/*
-----------------------------------------------------------------------------
Filename:    ExampleFrameListener.h
Description: Defines an example frame listener which responds to frame events.
This frame listener just moves a specified camera around based on
keyboard and mouse movements.
Mouse:    Freelook
W or Up:  Forward
S or Down:Backward
A:        Step left
D:        Step right
             PgUp:     Move upwards
             PgDown:   Move downwards
             F:        Toggle frame rate stats on/off
			 R:        Render mode
             T:        Cycle texture filtering
                       Bilinear, Trilinear, Anisotropic(8)
             P:        Toggle on/off display of camera position / orientation
-----------------------------------------------------------------------------
*/

#ifndef __ExampleFrameListener_H__
#define __ExampleFrameListener_H__

#include "precompiled.h"

using namespace Ogre;

class ExampleFrameListener: public FrameListener, public WindowEventListener
{
protected:
	void updateStats(void)
	{
		static String currFps = "Current FPS: ";
		static String avgFps = "Average FPS: ";
		static String bestFps = "Best FPS: ";
		static String worstFps = "Worst FPS: ";
		static String tris = "Triangle Count: ";
		static String batches = "Batch Count: ";

		// update stats when necessary
		try {
			OverlayElement* guiAvg = OverlayManager::getSingleton().getOverlayElement("Core/AverageFps");
			OverlayElement* guiCurr = OverlayManager::getSingleton().getOverlayElement("Core/CurrFps");
			OverlayElement* guiBest = OverlayManager::getSingleton().getOverlayElement("Core/BestFps");
			OverlayElement* guiWorst = OverlayManager::getSingleton().getOverlayElement("Core/WorstFps");

			const RenderTarget::FrameStats& stats = mWindow->getStatistics();
			guiAvg->setCaption(avgFps + StringConverter::toString(stats.avgFPS));
			guiCurr->setCaption(currFps + StringConverter::toString(stats.lastFPS));
			guiBest->setCaption(bestFps + StringConverter::toString(stats.bestFPS)
				+" "+StringConverter::toString(stats.bestFrameTime)+" ms");
			guiWorst->setCaption(worstFps + StringConverter::toString(stats.worstFPS)
				+" "+StringConverter::toString(stats.worstFrameTime)+" ms");

			OverlayElement* guiTris = OverlayManager::getSingleton().getOverlayElement("Core/NumTris");
			guiTris->setCaption(tris + StringConverter::toString(stats.triangleCount));

			OverlayElement* guiBatches = OverlayManager::getSingleton().getOverlayElement("Core/NumBatches");
			guiBatches->setCaption(batches + StringConverter::toString(stats.batchCount));

			OverlayElement* guiDbg = OverlayManager::getSingleton().getOverlayElement("Core/DebugText");
			guiDbg->setCaption(mDebugText);
		}
		catch(...) { /* ignore */ }
	}

public:
	// Constructor takes a RenderWindow because it uses that to determine input context
	void Initialize(RenderWindow* win, Camera* cam, bool bufferedKeys = false, bool bufferedMouse = false,
			     bool bufferedJoy = false )
	{
		mCamera = cam;
		mTranslateVector = Vector3::ZERO;
		mWindow = win;
		mStatsOn = true;
		mNumScreenShots = 0;
		mMoveScale = 0.0f;
		mRotScale = 0.0f;
		mTimeUntilNextToggle = 0;
		mFiltering = TFO_BILINEAR;
		mAniso = 1;
		mSceneDetailIndex = 0;
		mMoveSpeed = 100;
		mRotateSpeed = 36;
		mDebugOverlay = 0;
		mInputManager = 0;
		mMouse = 0;
		mKeyboard = 0;
		mJoy = 0;

		using namespace OIS;

		mDebugOverlay = OverlayManager::getSingleton().getByName("Core/DebugOverlay");

		LogManager::getSingletonPtr()->logMessage("*** Initializing OIS ***");
		ParamList pl;
		size_t windowHnd = 0;
		std::ostringstream windowHndStr;

		win->getCustomAttribute("WINDOW", &windowHnd);
		windowHndStr << windowHnd;
		pl.insert(std::make_pair(std::string("WINDOW"), windowHndStr.str()));

		mInputManager = InputManager::createInputSystem( pl );

		//Create all devices (We only catch joystick exceptions here, as, most people have Key/Mouse)
		mKeyboard = static_cast<Keyboard*>(mInputManager->createInputObject( OISKeyboard, bufferedKeys ));
		mMouse = static_cast<Mouse*>(mInputManager->createInputObject( OISMouse, bufferedMouse ));
		try {
			mJoy = static_cast<JoyStick*>(mInputManager->createInputObject( OISJoyStick, bufferedJoy ));
		}
		catch(...) {
			mJoy = 0;
		}

		//Set initial mouse clipping size
		windowResized(mWindow);

		showDebugOverlay(true);

		//Register as a Window listener
		WindowEventUtilities::addWindowEventListener(mWindow, this);
	}

	//Adjust mouse clipping area
	virtual void windowResized(RenderWindow* rw)
	{
		unsigned int width, height, depth;
		int left, top;
		rw->getMetrics(width, height, depth, left, top);

		const OIS::MouseState &ms = mMouse->getMouseState();
		ms.width = width;
		ms.height = height;
	}

	//Unattach OIS before window shutdown (very important under Linux)
	virtual void windowClosed(RenderWindow* rw)
	{
		//Only close for window that created OIS (the main window in these demos)
		if( rw == mWindow )
		{
			if( mInputManager )
			{
				mInputManager->destroyInputObject( mMouse );
				mInputManager->destroyInputObject( mKeyboard );
				mInputManager->destroyInputObject( mJoy );

				OIS::InputManager::destroyInputSystem(mInputManager);
				mInputManager = 0;
			}
		}
	}
	ExampleFrameListener(){};
	~ExampleFrameListener(){};

	void Destroy()
	{
		//Remove ourself as a Window listener
		WindowEventUtilities::removeWindowEventListener(mWindow, this);
		windowClosed(mWindow);
	}

	void moveCamera()
	{
		// Make all the changes to the camera
		// Note that YAW direction is around a fixed axis (freelook style) rather than a natural YAW
		//(e.g. airplane)
		mCamera->yaw(mRotX);
		mCamera->pitch(mRotY);
		mCamera->moveRelative(mTranslateVector);
	}

	void showDebugOverlay(bool show)
	{
		if (mDebugOverlay)
		{
			if (show)
				mDebugOverlay->show();
			else
				mDebugOverlay->hide();
		}
	}

	bool frameEnded(const FrameEvent& evt)
	{
		updateStats();
		return true;
	}

protected:
	Camera* mCamera;

	Vector3 mTranslateVector;
	RenderWindow* mWindow;
	bool mStatsOn;

	std::string mDebugText;

	unsigned int mNumScreenShots;
	float mMoveScale;
	Degree mRotScale;
	// just to stop toggles flipping too fast
	Real mTimeUntilNextToggle ;
	Radian mRotX, mRotY;
	TextureFilterOptions mFiltering;
	int mAniso;

	int mSceneDetailIndex ;
	Real mMoveSpeed;
	Degree mRotateSpeed;
	Overlay* mDebugOverlay;

	//OIS Input devices
	OIS::InputManager* mInputManager;
	OIS::Mouse*    mMouse;
	OIS::Keyboard* mKeyboard;
	OIS::JoyStick* mJoy;
};

#endif
ExampleFrameListener.h
Dirección de la página
Dirección del archivo
Would you like to comment?
