/*
 *   GRacer
 *
 *   Copyright (C) 1999 Takashi Matsuda <matsu@users.sourceforge.net>
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#ifndef __GRACER_GLUT_GAME_H__
#define __GRACER_GLUT_GAME_H__

#include "tcldefs.h"
#include "gluttclwidgets.h"
#include <common/gr_scene.h>
#include <common/gr_course.h>
#include "vehicle.h"
#include "gr_world.h"
#include "sound.h"

#ifdef __cplusplus
extern "C" {
#endif
#if 0
}
#endif

typedef struct GrViewer			GrViewer;
typedef struct GrViewerEntryInfo	GrViewerEntryInfo;
typedef struct GrViewerOverheadInfo	GrViewerOverheadInfo;
typedef struct GrTclTrigger		GrTclTrigger;

typedef enum {
  GR_VIEWER_USE_TEXTURE	= 1 << 0,
  GR_VIEWER_USE_MIPMAP	= 1 << 1,
  GR_VIEWER_USE_LINEAR	= 1 << 2,
  GR_VIEWER_USE_SHADING	= 1 << 3,
  GR_VIEWER_SHOW_SKY	= 1 << 4,
  GR_VIEWER_SHOW_DECR	= 1 << 5,
  GR_VIEWER_USE_AUDIO	= 1 << 6,
} GrViewerOption;

struct GrTclTrigger {
  GrTrigger core;

  int key;

  Tcl_Interp *interp;
  Tcl_Obj *script;
};

struct GrViewerOverheadInfo {
  float xmax, zmax;
  float xpan, zpan;
  float left, right, top, bottom;
  float near, far;
  
  float xangle;
  float yangle;
  float zangle;
};

typedef void (*GrViewerProjectionFunc)	(GlutObject);

struct GrViewer {
  GlutRoot core;

  GrWorld *world;

  GrViewerOption options;

  Tcl_Interp *interp;
  Tcl_Command token;

  Tcl_HashTable entry_hash;
  Tcl_HashTable trigger_hash;
  int trigger_key;

  GLfloat zpan;
  GLfloat xangle, yangle, zangle;

  int use_texture;
  int use_mipmap;
  int use_linear;
  int use_shading;
  int show_sky;
  int show_decr;
  int use_audio;

  GrObjectDrawOption draw_option;

  GrScene *course;
  GLuint dl;

  GrScene *sky;
  GLuint sky_dl;

  GrScene *rpm;
  GLuint rpm_measure_dl, rpm_arrow_dl;
  double rpm_angle;

  GrScene *font;
  GLuint lfont_dl;
  GLuint sfont_dl;

  GLuint laps_dl;
  int lap_changed;
  int max_lap;

  double current_time;
  double start_time;

  GrViewerEntryInfo *trace;

  GrViewerProjectionFunc projection_func;
  struct {
    GrViewerOverheadInfo overhead;
  } projection_info;

  GrSample *exhaust;
  GrEnvelope *exhaust_freq;

  GrSample *slip;
  int slip_playing;
};

struct GrViewerEntryInfo {
  int no;

  GLfloat xangle, yangle, zangle;
  GLfloat pos[3];

  double speed;		/* [km/h] */

  GrVehicle *vehicle;
};

int	GrViewer_Init 		(Tcl_Interp *interp);

GrViewerOption	gr_viewer_get_options	(GrViewer *viewer);
void		gr_viewer_set_options	(GrViewer *viewer, GrViewerOption opt);

#ifdef __cplusplus
}
#endif

#endif /* __GRACER_GLUT_GAME_H__ */