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/cvs/deliantra/server/random_maps/wall.C
Revision: 1.30
Committed: Fri Nov 6 12:49:19 2009 UTC (14 years, 7 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.29: +52 -56 lines
Log Message:
make effectively static symbols actually static, part 1

File Contents

# Content
1 /*
2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 *
4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Deliantra is free software: you can redistribute it and/or modify it under
9 * the terms of the Affero GNU General Public License as published by the
10 * Free Software Foundation, either version 3 of the License, or (at your
11 * option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the Affero GNU General Public License
19 * and the GNU General Public License along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
21 *
22 * The authors can be reached via e-mail to <support@deliantra.net>
23 */
24
25 #include <global.h>
26 #include <random_map.h>
27 #include <rproto.h>
28
29 /* Put in the walls and autojoin them. */
30
31 /* given a layout and a coordinate, tell me which squares up/down/right/left
32 are occupied. */
33 int
34 surround_flag (char **layout, int i, int j, random_map_params *RP)
35 {
36 /* 1 = wall to left,
37 2 = wall to right,
38 4 = wall above
39 8 = wall below */
40 int surround_index = 0;
41
42 if ((i > 0) && layout[i - 1][j] != 0)
43 surround_index |= 1;
44 if ((i < RP->Xsize - 1) && layout[i + 1][j] != 0)
45 surround_index |= 2;
46 if ((j > 0) && layout[i][j - 1] != 0)
47 surround_index |= 4;
48 if ((j < RP->Ysize - 1) && layout[i][j + 1] != 0)
49 surround_index |= 8;
50 return surround_index;
51 }
52
53
54 /* like surround_flag, but only walls count.
55 */
56
57 int
58 surround_flag2 (char **layout, int i, int j, random_map_params *RP)
59 {
60 /* 1 = wall to left,
61 2 = wall to right,
62 4 = wall above
63 8 = wall below */
64 int surround_index = 0;
65
66 if ((i > 0) && layout[i - 1][j] == '#')
67 surround_index |= 1;
68 if ((i < RP->Xsize - 1) && layout[i + 1][j] == '#')
69 surround_index |= 2;
70 if ((j > 0) && layout[i][j - 1] == '#')
71 surround_index |= 4;
72 if ((j < RP->Ysize - 1) && layout[i][j + 1] == '#')
73 surround_index |= 8;
74 return surround_index;
75 }
76
77
78 /* like surround_flag, except it checks a map, not a layout.
79 * Since this is part of the random map code, presumption
80 * is that this is not a tiled map.
81 * What is considered blocking and not is somewhat hard coded.
82 */
83 int
84 surround_flag3 (maptile *map, sint16 i, sint16 j, random_map_params *RP)
85 {
86 /*
87 * 1 = blocked to left,
88 * 2 = blocked to right,
89 * 4 = blocked above
90 * 8 = blocked below
91 */
92
93 int surround_index = 0;
94
95 // don't forget to update the mapspace!
96 if (i > 0) map->at (i - 1, j ).update ();
97 if (i < RP->Xsize - 1) map->at (i + 1, j ).update ();
98 if (j > 0) map->at (i , j - 1).update ();
99 if (j < RP->Ysize - 1) map->at (i , j + 1).update ();
100
101 if ((i > 0) && (GET_MAP_MOVE_BLOCK (map, i - 1, j) & MOVE_WALK))
102 surround_index |= 1;
103 if ((i < RP->Xsize - 1) && (GET_MAP_MOVE_BLOCK (map, i + 1, j) & MOVE_WALK))
104 surround_index |= 2;
105 if ((j > 0) && (GET_MAP_MOVE_BLOCK (map, i, j - 1) & MOVE_WALK))
106 surround_index |= 4;
107 if ((j < RP->Ysize - 1) && (GET_MAP_MOVE_BLOCK (map, i, j + 1) & MOVE_WALK))
108 surround_index |= 8;
109
110 return surround_index;
111 }
112
113 /* like surround_flag2, except it checks a map, not a layout. */
114
115 int
116 surround_flag4 (maptile *map, int i, int j, random_map_params *RP)
117 {
118 /* 1 = blocked to left,
119 2 = blocked to right,
120 4 = blocked above
121 8 = blocked below */
122 int surround_index = 0;
123
124 if ((i > 0) && wall_blocked (map, i - 1, j))
125 surround_index |= 1;
126 if ((i < RP->Xsize - 1) && wall_blocked (map, i + 1, j))
127 surround_index |= 2;
128 if ((j > 0) && wall_blocked (map, i, j - 1))
129 surround_index |= 4;
130 if ((j < RP->Ysize - 1) && wall_blocked (map, i, j + 1))
131 surround_index |= 8;
132
133 return surround_index;
134 }
135
136 /* picks the right wall type for this square, to make it look nice,
137 and have everything nicely joined. It uses the layout. */
138 object *
139 pick_joined_wall (object *the_wall, char **layout, int i, int j, random_map_params *RP)
140 {
141 /* 1 = wall to left,
142 2 = wall to right,
143 4 = wall above
144 8 = wall below */
145 int surround_index = 0;
146 int l;
147 char wall_name[1024];
148 archetype *wall_arch = 0;
149
150 assign (wall_name, the_wall->arch->archname);
151
152 /* conventionally, walls are named like this:
153 wallname_wallcode, where wallcode indicates
154 a joinedness, and wallname is the wall.
155 this code depends on the convention for
156 finding the right wall. */
157
158 /* extract the wall name, which is the text up to the leading _ */
159 for (l = 0; l < 64; l++)
160 {
161 if (wall_name[l] == '_')
162 {
163 wall_name[l] = 0;
164 break;
165 }
166 }
167
168 surround_index = surround_flag2 (layout, i, j, RP);
169
170 switch (surround_index)
171 {
172 case 0:
173 strcat (wall_name, "_0");
174 break;
175 case 1:
176 strcat (wall_name, "_1_3");
177 break;
178 case 2:
179 strcat (wall_name, "_1_4");
180 break;
181 case 3:
182 strcat (wall_name, "_2_1_2");
183 break;
184 case 4:
185 strcat (wall_name, "_1_2");
186 break;
187 case 5:
188 strcat (wall_name, "_2_2_4");
189 break;
190 case 6:
191 strcat (wall_name, "_2_2_1");
192 break;
193 case 7:
194 strcat (wall_name, "_3_1");
195 break;
196 case 8:
197 strcat (wall_name, "_1_1");
198 break;
199 case 9:
200 strcat (wall_name, "_2_2_3");
201 break;
202 case 10:
203 strcat (wall_name, "_2_2_2");
204 break;
205 case 11:
206 strcat (wall_name, "_3_3");
207 break;
208 case 12:
209 strcat (wall_name, "_2_1_1");
210 break;
211 case 13:
212 strcat (wall_name, "_3_4");
213 break;
214 case 14:
215 strcat (wall_name, "_3_2");
216 break;
217 case 15:
218 strcat (wall_name, "_4");
219 break;
220 }
221 wall_arch = archetype::find (wall_name);
222
223 return wall_arch ? arch_to_object (wall_arch) : arch_to_object (the_wall->arch);
224 }
225
226 /* takes a map and a layout, and puts walls in the map (picked from
227 w_style) at '#' marks. */
228 void
229 make_map_walls (maptile *map, char **layout, char *w_style, random_map_params *RP)
230 {
231 char styledirname[1024];
232 char stylefilepath[1024];
233 maptile *style_map = 0;
234 object *the_wall;
235
236 /* get the style map */
237 if (!strcmp (w_style, "none"))
238 return;
239 sprintf (styledirname, "%s", "/styles/wallstyles");
240 sprintf (stylefilepath, "%s/%s", styledirname, w_style);
241 style_map = find_style (styledirname, w_style, -1);
242 if (!style_map)
243 return;
244
245 /* fill up the map with the given floor style */
246 if ((the_wall = style_map->pick_random_object (rmg_rndm)))
247 {
248 int i, j;
249 char *cp;
250 int joinedwalls = 0;
251 object *thiswall;
252
253 sprintf (RP->wall_name, "%s", &the_wall->arch->archname);
254 if ((cp = strchr (RP->wall_name, '_')) != NULL)
255 {
256 *cp = 0;
257 joinedwalls = 1;
258 }
259
260 for (i = 0; i < RP->Xsize; i++)
261 for (j = 0; j < RP->Ysize; j++)
262 {
263 if (layout[i][j] == '#')
264 {
265 if (joinedwalls)
266 thiswall = pick_joined_wall (the_wall, layout, i, j, RP);
267 else
268 thiswall = arch_to_object (the_wall->arch);
269
270 thiswall->x = i;
271 thiswall->y = j;
272 thiswall->move_block = MOVE_ALL;
273 insert_ob_in_map (thiswall, map, thiswall, INS_NO_MERGE | INS_NO_WALK_ON);
274 }
275 }
276 }
277 }
278
279 /* this takes a map, and changes an existing wall to match what's blocked
280 * around it, counting only doors and walls as blocked. If insert_flag is
281 * 1, it will go ahead and insert the wall into the map. If not, it
282 * will only return the wall which would belong there, and doesn't
283 * remove anything. It depends on the
284 * global, previously-set variable, "wall_name"
285 */
286 object *
287 retrofit_joined_wall (maptile *the_map, int i, int j, int insert_flag, random_map_params *RP)
288 {
289 /* 1 = wall to left,
290 * 2 = wall to right,
291 * 4 = wall above
292 * 8 = wall below
293 */
294 int surround_index = 0;
295 int l;
296 object *the_wall = 0;
297 object *new_wall = 0;
298 archetype *wall_arch = 0;
299
300 /* first find the wall */
301 for (the_wall = GET_MAP_OB (the_map, i, j); the_wall != NULL; the_wall = the_wall->above)
302 if ((the_wall->move_type & MOVE_WALK) && the_wall->type != EXIT && the_wall->type != TELEPORTER)
303 break;
304
305
306 /* if what we found is a door, don't remove it, set the_wall to NULL to
307 * signal that later.
308 */
309 if (the_wall && (the_wall->type == DOOR || the_wall->type == LOCKED_DOOR))
310 {
311 the_wall = NULL;
312 /* if we're not supposed to insert a new wall where there wasn't one,
313 * we've gotta leave.
314 */
315 if (insert_flag == 0)
316 return 0;
317 }
318 else if (the_wall == NULL)
319 return NULL;
320
321 /* canonicalize the wall name */
322 for (l = 0; l < 64; l++)
323 {
324 if (RP->wall_name[l] == '_')
325 {
326 RP->wall_name[l] = 0;
327 break;
328 }
329 }
330
331 surround_index = surround_flag4 (the_map, i, j, RP);
332 /* This would be a lot cleaner to just us a lookup table,
333 * eg, wall_suffix[surround_index]
334 */
335 switch (surround_index)
336 {
337 case 0:
338 strcat (RP->wall_name, "_0");
339 break;
340 case 1:
341 strcat (RP->wall_name, "_1_3");
342 break;
343 case 2:
344 strcat (RP->wall_name, "_1_4");
345 break;
346 case 3:
347 strcat (RP->wall_name, "_2_1_2");
348 break;
349 case 4:
350 strcat (RP->wall_name, "_1_2");
351 break;
352 case 5:
353 strcat (RP->wall_name, "_2_2_4");
354 break;
355 case 6:
356 strcat (RP->wall_name, "_2_2_1");
357 break;
358 case 7:
359 strcat (RP->wall_name, "_3_1");
360 break;
361 case 8:
362 strcat (RP->wall_name, "_1_1");
363 break;
364 case 9:
365 strcat (RP->wall_name, "_2_2_3");
366 break;
367 case 10:
368 strcat (RP->wall_name, "_2_2_2");
369 break;
370 case 11:
371 strcat (RP->wall_name, "_3_3");
372 break;
373 case 12:
374 strcat (RP->wall_name, "_2_1_1");
375 break;
376 case 13:
377 strcat (RP->wall_name, "_3_4");
378 break;
379 case 14:
380 strcat (RP->wall_name, "_3_2");
381 break;
382 case 15:
383 strcat (RP->wall_name, "_4");
384 break;
385 }
386
387 wall_arch = archetype::find (RP->wall_name);
388
389 if (!wall_arch)
390 {
391 new_wall = arch_to_object (wall_arch);
392 new_wall->x = i;
393 new_wall->y = j;
394
395 if (the_wall && the_wall->map)
396 the_wall->destroy ();
397
398 the_wall->move_block = MOVE_ALL;
399 insert_ob_in_map (new_wall, the_map, new_wall, INS_NO_MERGE | INS_NO_WALK_ON);
400 }
401
402 return new_wall;
403 }