1 /**
2 ** Mappatch.cc - Patches to the game map.
3 **
4 ** Written: 10-18-2001
5 **/
6
7 /*
8 Copyright (C) 2001-2013 The Exult Team
9
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License
12 as published by the Free Software Foundation; either version 2
13 of the License, or (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 */
24
25 #ifdef HAVE_CONFIG_H
26 # include <config.h>
27 #endif
28
29 #include "mappatch.h"
30 #include "gamewin.h"
31 #include "objs.h"
32
33 /*
34 * Find (first) matching object.
35 */
36
find()37 Game_object *Map_patch::find(
38 ) {
39 Game_object_vector vec; // Pass mask=0xb0 to get any object.
40 Game_object::find_nearby(vec, spec.loc, spec.shapenum, 0, 0xb0,
41 spec.quality, spec.framenum);
42 return vec.empty() ? nullptr : vec.front();
43 }
44
45 /*
46 * Apply by removing object.
47 *
48 * Output: false if no object found.
49 */
50
apply()51 bool Map_patch_remove::apply(
52 ) {
53 bool found = false;
54 Game_object *obj;
55 while ((obj = find()) != nullptr) {
56 obj->remove_this();
57 found = true;
58 if (!all) // Just one?
59 return true;
60 }
61 return found;
62 }
63
64 /*
65 * Apply by moving/changing object.
66 *
67 * Output: false if no object found.
68 */
69
apply()70 bool Map_patch_modify::apply(
71 ) {
72 Game_object *obj = find();
73 if (!obj)
74 return false;
75 Game_object_shared keep;
76 obj->remove_this(&keep); // Remove but don't delete.
77 if (mod.shapenum != c_any_shapenum)
78 obj->set_shape(mod.shapenum);
79 if (mod.framenum != c_any_framenum)
80 obj->change_frame(mod.framenum);
81 if (mod.quality != c_any_qual)
82 obj->set_quality(mod.quality);
83 obj->set_invalid(); // To add it back correctly.
84 obj->move(mod.loc);
85 return true;
86 }
87
88 /*
89 * Add a new patch.
90 */
91
add(std::unique_ptr<Map_patch> p)92 void Map_patch_collection::add(
93 std::unique_ptr<Map_patch> p
94 ) {
95 // Get superchunk coords.
96 int sx = p->spec.loc.tx / c_tiles_per_schunk;
97 int sy = p->spec.loc.ty / c_tiles_per_schunk;
98 // Get superchunk # (0-143).
99 int schunk = sy * c_num_schunks + sx;
100 patches[schunk].push_back(std::move(p));
101 }
102
103 /*
104 * Apply all patches for a superchunk.
105 */
106
apply(int schunk)107 void Map_patch_collection::apply(
108 int schunk
109 ) {
110 auto it1 = patches.find(schunk);
111 if (it1 != patches.end()) { // Found list for superchunk?
112 Map_patch_list &lst = it1->second;
113 for (auto& it2 : lst)
114 it2->apply(); // Apply each one in list.
115 }
116 }
117