/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

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 __CCCAMERA_H__
#define __CCCAMERA_H__

#include "../cocoa/NSObject.h"
#include "ccMacros.h"
#include <string>

class CCCamera : public NSObject
{
protected:
	float m_fEyeX;
	float m_fEyeY;
	float m_fEyeZ;

	float m_fCenterX;
	float m_fCenterY;
	float m_fCenterZ;

	float m_fUpX;
	float m_fUpY;
	float m_fUpZ;

	bool m_bDirty;
public:
	CCCamera(void);
	~CCCamera(void);

	std::string description(void);

	// sets the dirty value
	void setDirty(bool bValue);
	// get the dirty value
	bool getDirty(void);

	// sets the camera in the defaul position
	void restore(void);
	// Sets the camera using gluLookAt using its eye, center and up_vector
	void locate(void);
    // sets the eye values
	void setEyeXYZ(float fEyeX, float fEyeY, float fEyeZ);
	// sets the center values
	void setCenterXYZ(float fCenterX, float fCenterY, float fCenterZ);
	// sets the up values
	void setUpXYZ(float fUpX, float fUpY, float fUpZ);

	// get the eye vector values
	void getEyeXYZ(float *pEyeX, float *pEyeY, float *pEyeZ);
	// get the center vector values
	void getCenterXYZ(float *pCenterX, float *pCenterY, float *pCenterZ);
	// get the up vector values
	void getUpXYZ(float *pUpX, float *pUpY, float *pUpZ);
public:
	// returns the Z eye
	static float getZEye();

private:
	DISALLOW_COPY_AND_ASSIGN(CCCamera);
};

#endif // __CCCAMERA_H__