npcnear.h

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/*
 *  npcnear.h - At random times, run proximity usecode functions on nearby NPC's.
 *
 *  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 NPCNEAR_H
#define NPCNEAR_H 1

#include "lists.h"
#include "tqueue.h"

class Game_window;
class Npc_actor;

/*
 *  This class keeps track of NPC's nearby, and randomly runs the Usecode
 *  proximity functions for them.
 */
class Npc_proximity_handler : public Time_sensitive
  {
  Game_window *gwin;
  unsigned long wait_until; // Skip running usecodes until past.
public:
  Npc_proximity_handler(Game_window *gw) : gwin(gw)
    {
    wait_until = 0;
    }
          // Add npc to queue.
  void add(unsigned long curtime, Npc_actor *npc,
          int additional_secs = 0);
  void remove(Npc_actor *npc);  // Remove.
          // Run usecode function.
  void handle_event(unsigned long curtime, long udata);
          // Wait before running more funs.
  void wait(int secs);
  void get_all(Actor_queue& list);  // Fill list with nearby NPC's.
  };

#endif  /* INCL_NPCNEAR */

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