gameclk.h

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/*
 *  gameclk.h - Keep track of time.
 *
 *  Copyright (C) 2000-2001  The Exult Team
 *
 *  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 GAMECLK_H
#define GAMECLK_H 1

#include "tqueue.h"

/*
 *  Time passes 15 times faster in game than in real-life, so
 *  1 real minute = 15 game minutes.
 */
const int time_factor = 15;

/*
 *  Keep track of time, and of the palette for a given time.
 */
class Game_clock : public Time_sensitive
  {
  Time_queue *tqueue;   // The time queue.
  short hour, minute;   // Time (0-23, 0-59).
  int day;      // Keep track of days played.
  int light_source_level;   // Last set light source level.
  unsigned int dungeon;   // Last set 'in_dungeon' value.
  int storm;      // >0 if storm in progress.
  unsigned short time_rate;
  void set_time_palette();
  void set_light_source_level(int lev);
  void check_hunger();
public:
  Game_clock(Time_queue *tq) : tqueue(tq), hour(6), minute(0), day(0),
      light_source_level(0), dungeon(255),
      storm(0), time_rate(1)
    { }
  int get_hour()
    { return hour; }
  void set_hour(int h)
    { hour = h; }
  int get_minute()
    { return minute; }
  void set_minute(int m)
    { minute = m; }
  int get_day()
    { return day; }
  void set_day(int d)
    { day = d; }
  unsigned long get_total_hours() // Get total # hours.
    { return day*24 + hour; }
  unsigned long get_total_minutes()
    { return get_total_hours()*60 + minute; }
  void set_palette();   // Set palette for current hour.
          // Set light source.  MUST be fast,
          //   since it's called during paint().
  void set_light_source(int lev, int dun)
    {
    if (lev != light_source_level || dun != dungeon)
      set_light_source_level(lev);
    }
  void set_storm(bool onoff); // Start/end storm.
  void increment(int num_minutes);// Increment clock.
  virtual void handle_event(unsigned long curtime, long udata);
  void fake_next_period();  // For debugging.
  int get_time_rate() { return time_rate; }
  void set_time_rate(int i) { time_rate=i>0?i:1; }
  };

#endif  /* INCL_GAMECLK */

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