mappatch.cc

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/*
Copyright (C) 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.
*/

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include "mappatch.h"
#include "gamewin.h"
#include "objs.h"
#include "vec.h"

/*
 *  Find (first) matching object.
 */

Game_object *Map_patch::find
  (
  )
  {
  Game_window *gwin = Game_window::get_instance();
  Game_object_vector vec;   // Pass mask=0xb0 to get any object.
  Game_object::find_nearby(vec, spec.loc, spec.shapenum, 0, 0xb0,
          spec.quality, spec.framenum);
  return vec.empty() ? 0 : vec.front();
  }

/*
 *  Apply by removing object.
 *
 *  Output: false if no object found.
 */

bool Map_patch_remove::apply
  (
  )
  {
  bool found = false;
  Game_object *obj;
  while ((obj = find()) != 0)
    {
    obj->remove_this();
    found = true;
    if (!all)   // Just one?
      return true;
    }   
  return found;
  }

/*
 *  Apply by moving/changing object.
 *
 *  Output: false if no object found.
 */

bool Map_patch_modify::apply
  (
  )
  {
  Game_object *obj = find();
  if (!obj)
    return false;
  obj->remove_this(1);    // Remove but don't delete.
  if (mod.shapenum != c_any_shapenum)
    obj->set_shape(mod.shapenum);
  if (mod.framenum != c_any_framenum)
    obj->set_frame(mod.framenum);
  if (mod.quality != c_any_qual)
    obj->set_quality(mod.quality);
  obj->set_invalid();   // To add it back correctly.
  obj->move(mod.loc);
  return true;
  }

/*
 *  Delete all the patches.
 */

Map_patch_collection::~Map_patch_collection
  (
  )
  {
  for (Map_patch_map::iterator it1 = patches.begin();
            it1 != patches.end(); it1++)
    {
    Map_patch_list& lst = (*it1).second;
    while (!lst.empty())
      {
      Map_patch *patch = lst.front();
      delete patch;
      lst.pop_front();
      }
    }
  }

/*
 *  Add a new patch.
 */

void Map_patch_collection::add
  (
  Map_patch *p
  )
  {
          // Get superchunk coords.
  int sx = p->spec.loc.tx/c_tiles_per_schunk,
      sy = p->spec.loc.ty/c_tiles_per_schunk;
          // Get superchunk # (0-143).
  int schunk = sy*c_num_schunks + sx;
  patches[schunk].push_back(p);
  }

/*
 *  Apply all patches for a superchunk.
 */

void Map_patch_collection::apply
  (
  int schunk
  )
  {
  Map_patch_map::iterator it1 = patches.find(schunk);
  if (it1 != patches.end()) // Found list for superchunk?
    {
    Map_patch_list& lst = (*it1).second;
    for (Map_patch_list::const_iterator it2 = lst.begin();
            it2 != lst.end(); it2++)
      (*it2)->apply();  // Apply each one in list.
    }
  }

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