camera.h

3D游戏程序设计入门14章源码-雪景系统

//////////////////////////////////////////////////////////////////////////////////////////////////
// 
// File: camera.h
// 
// Author: Frank Luna (C) All Rights Reserved
//
// System: AMD Athlon 1800+ XP, 512 DDR, Geforce 3, Windows XP, MSVC++ 7.0 
//
// Desc: Defines a camera's position and orientation.
//         
//////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef __cameraH__
#define __cameraH__

#include <d3dx9.h>

class Camera
{
public:
	enum CameraType { LANDOBJECT, AIRCRAFT };

	Camera();
	Camera(CameraType cameraType);
	~Camera();

	void strafe(float units); // left/right
	void fly(float units);    // up/down
	void walk(float units);   // forward/backward
	
	void pitch(float angle); // rotate on right vector
	void yaw(float angle);   // rotate on up vector
	void roll(float angle);  // rotate on look vector

	void getViewMatrix(D3DXMATRIX* V); 
	void setCameraType(CameraType cameraType); 
	void getPosition(D3DXVECTOR3* pos); 
	void setPosition(D3DXVECTOR3* pos); 

	void getRight(D3DXVECTOR3* right);
	void getUp(D3DXVECTOR3* up);
	void getLook(D3DXVECTOR3* look);
private:
	CameraType  _cameraType;
	D3DXVECTOR3 _right;
	D3DXVECTOR3 _up;
	D3DXVECTOR3 _look;
	D3DXVECTOR3 _pos;
};
#endif // __cameraH__