camera.h

//***************************************************************************
//
// Advanced CodeColony Camera
// Philipp Crocoll, 2003
//
//***************************************************************************


#include <gl\glut.h>		// Need to include it here because the GL* types are required
#define PI 3.1415926535897932384626433832795
#define PIdiv180 (PI/180.0)

/////////////////////////////////
//Note: All angles in degrees  //
/////////////////////////////////

struct SF3dVector  //Float 3d-vect, normally used
{
	GLfloat x,y,z;
};
struct SF2dVector
{
	GLfloat x,y;
};
SF3dVector F3dVector ( GLfloat x, GLfloat y, GLfloat z );

class CCamera
{
private:
	
	SF3dVector ViewDir;
	SF3dVector RightVector;	
	SF3dVector UpVector;
	SF3dVector Position;

	GLfloat RotatedX, RotatedY, RotatedZ;	
	
public:
	CCamera();				//inits the values (Position: (0|0|0) Target: (0|0|-1) )
	void Render ( void );	//executes some glRotates and a glTranslate command
							//Note: You should call glLoadIdentity before using Render
	void Reset();
	void Move ( SF3dVector Direction );
	void RotateX ( GLfloat Angle );
	void RotateY ( GLfloat Angle );
	void RotateZ ( GLfloat Angle );
	SF3dVector GetPosition( void );

	void MoveForward ( GLfloat Distance );
	void MoveUpward ( GLfloat Distance );
	void StrafeRight ( GLfloat Distance );


};