#ifndef _GLFRAME_H_
#define _GLFRAME_H_

#include "math3d.h"

typedef struct
{
    M3DVector3f v_location; /* location */
    M3DVector3f v_forward;  /* where am I heading */
    M3DVector3f v_up;       /* which way is up */   
} GLFrame;

/* function prototypes */
void reset_glframe(GLFrame *frame);
void get_camera_orientation(GLFrame *frame, M3DMatrix44f m);
void apply_camera_transform(GLFrame *frame);
void move_forward(GLFrame *frame, float delta);
void rotate_local_y(GLFrame *frame, float angle);

#endif