iregobjs.h

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/*
 *  iregobjs.h - Ireg (moveable) game objects.
 *
 *  Copyright (C) 1998-1999  Jeffrey S. Freedman
 *  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 IREGOBJS_H
#define IREGOBJS_H  1

#include "exult_types.h"
#include "objs.h"

/*
 *  A moveable game object (from 'ireg' files):
 */
class Ireg_game_object : public Game_object
  {
  Container_game_object *owner; // Container this is in, or 0.
protected:
  unsigned flags:32;    // 32 flags used in 'usecode'.
  unsigned flags2:32;   // Another 32 flags used in 'usecode'.
public:
  Ireg_game_object(int shapenum, int framenum, unsigned int tilex, 
        unsigned int tiley, unsigned int lft = 0)
    : Game_object(shapenum, framenum, tilex, tiley, lft),
        owner(0), flags(0), flags2(0), lowlift(-1), 
        highshape (-1)
    {  }
          // Copy constructor.
  Ireg_game_object(const Ireg_game_object& obj2)
    : Game_object(obj2), owner(0), flags(0), flags2(0),
          lowlift(-1), highshape (-1)
    {  }
          // Create fake entry.
  Ireg_game_object() : owner(0), flags(0), flags2(0), lowlift(-1), highshape (-1)
    {  }
  virtual ~Ireg_game_object()
    {  }
  void set_flags(uint32 f)  // For initialization.
    { flags = f; }
          // Render.
  virtual void paint();
  virtual void paint_terrain() {  }
          // Move to new abs. location.
  virtual void move(int newtx, int newty, int newlift);
  void move(Tile_coord t)
    { move(t.tx, t.ty, t.tz); }
          // Remove/delete this object.
  virtual void remove_this(int nodel = 0);
  virtual Container_game_object *get_owner()
    { return owner; }
  virtual void set_owner(Container_game_object *o)
    { owner = o; }
  virtual int is_dragable() const;// Can this be dragged?
  virtual void set_flag(int flag)
    {
    if (flag >= 0 && flag < 32)
      flags |= ((uint32) 1 << flag);
    else if (flag >= 32 && flag < 64)
      flags2 |= ((uint32) 1 << (flag-32));
    }
  virtual void clear_flag(int flag)
    {
    if (flag >= 0 && flag < 32)
      flags &= ~((uint32) 1 << flag);
    else if (flag >= 32 && flag < 64)
      flags2 &= ~((uint32) 1 << (flag-32));
    }
  virtual int get_flag(int flag) const
    {
    if (flag >= 0 && flag < 32)
      return flags & ((uint32) 1 << flag);
    else if (flag >= 32 && flag < 64)
      return flags2 & ((uint32) 1 << (flag-32));
    return 0;
    }
  virtual void set_flag_recursively(int flag)
    { set_flag(flag); }
  uint32 get_flags() const { return flags; }
  uint32 get_flags2() const { return flags2; }

          // Write out to IREG file.
  virtual void write_ireg(DataSource* out);
        // Get size of IREG. Returns -1 if can't write to buffer
  virtual int get_ireg_size();
  int lowlift;
  int highshape;
  virtual int get_high_shape() const { return highshape; };
  virtual void set_high_shape(int s) { highshape = s;};
  virtual int get_low_lift() const { return lowlift; };
  virtual void set_low_lift(int l) { lowlift = l;};
  };

#endif

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