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/**
** Mappatch.cc - Patches to the game map.
**
** Written: 10-18-2001
**/
/*
Copyright (C) 2001-2022 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"
/*
* Find (first) matching object.
*/
Game_object* Map_patch::find() {
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() ? nullptr : 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()) != nullptr) {
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;
}
Game_object_shared keep;
obj->remove_this(&keep); // Remove but don't delete.
if (mod.shapenum != c_any_shapenum) {
obj->set_shape(mod.shapenum);
}
if (mod.framenum != c_any_framenum) {
obj->change_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;
}
/*
* Add a new patch.
*/
void Map_patch_collection::add(std::unique_ptr<Map_patch> p) {
// Get superchunk coords.
const int sx = p->spec.loc.tx / c_tiles_per_schunk;
const int sy = p->spec.loc.ty / c_tiles_per_schunk;
// Get superchunk # (0-143).
const int schunk = sy * c_num_schunks + sx;
patches[schunk].push_back(std::move(p));
}
/*
* Apply all patches for a superchunk.
*/
void Map_patch_collection::apply(int schunk) {
auto it1 = patches.find(schunk);
if (it1 != patches.end()) { // Found list for superchunk?
Map_patch_list& lst = it1->second;
for (auto& it2 : lst) {
it2->apply(); // Apply each one in list.
}
}
}
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