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Comparing deliantra/server/server/c_wiz.C (file contents):
Revision 1.61 by root, Sat Dec 20 02:32:31 2008 UTC vs.
Revision 1.75 by root, Fri Nov 6 12:49:19 2009 UTC

… …
3 * 3 *
4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * Deliantra is free software: you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 9 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation, either version 3 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 11 * option) any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 16 * GNU General Public License for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the Affero GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 19 * and the GNU General Public License along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
20 * 21 *
21 * The authors can be reached via e-mail to <support@deliantra.net> 22 * The authors can be reached via e-mail to <support@deliantra.net>
22 */ 23 */
23 24
24#include <global.h> 25#include <global.h>
… …
33/* Values for 'from' field of get_dm_object */ 34/* Values for 'from' field of get_dm_object */
34#define STACK_FROM_NONE 0 /* Item was not found */ 35#define STACK_FROM_NONE 0 /* Item was not found */
35#define STACK_FROM_TOP 1 /* Item is stack top */ 36#define STACK_FROM_TOP 1 /* Item is stack top */
36#define STACK_FROM_STACK 2 /* Item is somewhere in stack */ 37#define STACK_FROM_STACK 2 /* Item is somewhere in stack */
37#define STACK_FROM_NUMBER 3 /* Item is a number (may be top) */ 38#define STACK_FROM_NUMBER 3 /* Item is a number (may be top) */
38
39 39
40/** 40/**
41 * Enough of the DM functions seem to need this that I broke 41 * Enough of the DM functions seem to need this that I broke
42 * it out to a seperate function. name is the person 42 * it out to a seperate function. name is the person
43 * being saught, rq is who is looking for them. This 43 * being saught, rq is who is looking for them. This
… …
70 70
71 new_draw_info (NDI_UNIQUE, 0, op, "No such player."); 71 new_draw_info (NDI_UNIQUE, 0, op, "No such player.");
72 return 0; 72 return 0;
73} 73}
74 74
75static void
76dm_stack_pop (player *pl)
77{
78 if (!pl->stack_items || !pl->stack_position)
79 {
80 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Empty stack!");
81 return;
82 }
83
84 pl->stack_position--;
85 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Popped item from stack, %d left.", pl->stack_position);
86}
87
88/**
89 * Get current stack top item for player.
90 * Returns NULL if no stacked item.
91 * If stacked item disappeared (freed), remove it.
92 *
93 * Ryo, august 2004
94 */
95static object *
96dm_stack_peek (player *pl)
97{
98 object *ob;
99
100 if (!pl->stack_position)
101 {
102 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Empty stack!");
103 return NULL;
104 }
105
106 ob = find_object (pl->stack_items[pl->stack_position - 1]);
107 if (!ob)
108 {
109 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Stacked item was removed!");
110 dm_stack_pop (pl);
111 return NULL;
112 }
113
114 return ob;
115}
116
117/**
118 * Push specified item on player stack.
119 * Inform player of position.
120 * Initializes variables if needed.
121 */
122void
123dm_stack_push (player *pl, tag_t item)
124{
125 if (!pl->stack_items)
126 {
127 pl->stack_items = (tag_t *) malloc (sizeof (tag_t) * STACK_SIZE);
128 memset (pl->stack_items, 0, sizeof (tag_t) * STACK_SIZE);
129 }
130
131 if (pl->stack_position == STACK_SIZE)
132 {
133 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Item stack full!");
134 return;
135 }
136
137 pl->stack_items[pl->stack_position] = item;
138 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Item stacked as %d.", pl->stack_position);
139 pl->stack_position++;
140}
141
142/**
143 * Checks 'params' for object code.
144 *
145 * Can be:
146 * * empty => get current object stack top for player
147 * * number => get item with that tag, stack it for future use
148 * * $number => get specified stack item
149 * * "me" => player himself
150 *
151 * At function exit, params points to first non-object char
152 *
153 * 'from', if not NULL, contains at exit:
154 * * STACK_FROM_NONE => object not found
155 * * STACK_FROM_TOP => top item stack, may be NULL if stack was empty
156 * * STACK_FROM_STACK => item from somewhere in the stack
157 * * STACK_FROM_NUMBER => item by number, pushed on stack
158 *
159 * Ryo, august 2004
160 */
161static object *
162get_dm_object (player *pl, char **params, int *from)
163{
164 int item_tag, item_position;
165 object *ob;
166
167 if (!pl)
168 return NULL;
169
170 if (!params || !*params || **params == '\0')
171 {
172 if (from)
173 *from = STACK_FROM_TOP;
174 /* No parameter => get stack item */
175 return dm_stack_peek (pl);
176 }
177
178 /* Let's clean white spaces */
179 while (**params == ' ')
180 (*params)++;
181
182 /* Next case: number => item tag */
183 if (sscanf (*params, "%d", &item_tag))
184 {
185 /* Move parameter to next item */
186 while (isdigit (**params))
187 (*params)++;
188
189 /* And skip blanks, too */
190 while (**params == ' ')
191 (*params)++;
192
193 /* Get item */
194 ob = find_object (item_tag);
195 if (!ob)
196 {
197 if (from)
198 *from = STACK_FROM_NONE;
199 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "No such item %d!", item_tag);
200 return NULL;
201 }
202
203 /* Got one, let's push it on stack */
204 dm_stack_push (pl, item_tag);
205 if (from)
206 *from = STACK_FROM_NUMBER;
207 return ob;
208 }
209
210 /* Next case: $number => stack item */
211 if (sscanf (*params, "$%d", &item_position))
212 {
213 /* Move parameter to next item */
214 (*params)++;
215
216 while (isdigit (**params))
217 (*params)++;
218 while (**params == ' ')
219 (*params)++;
220
221 if (item_position >= pl->stack_position)
222 {
223 if (from)
224 *from = STACK_FROM_NONE;
225 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "No such stack item %d!", item_position);
226 return NULL;
227 }
228
229 ob = find_object (pl->stack_items[item_position]);
230 if (!ob)
231 {
232 if (from)
233 *from = STACK_FROM_NONE;
234 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Stack item %d was removed.", item_position);
235 return NULL;
236 }
237
238 if (from)
239 *from = item_position < pl->stack_position - 1 ? STACK_FROM_STACK : STACK_FROM_TOP;
240 return ob;
241 }
242
243 /* Next case: 'me' => return pl->ob */
244 if (!strncmp (*params, "me", 2))
245 {
246 if (from)
247 *from = STACK_FROM_NUMBER;
248 dm_stack_push (pl, pl->ob->count);
249
250 /* Skip to next token */
251 (*params) += 2;
252 while (**params == ' ')
253 (*params)++;
254
255 return pl->ob;
256 }
257
258 /* Last case: get stack top */
259 if (from)
260 *from = STACK_FROM_TOP;
261 return dm_stack_peek (pl);
262}
263
75/** 264/**
76 * Actually hides specified player (obviously a DM). 265 * Actually hides specified player (obviously a DM).
77 * If 'silent_dm' is non zero, other players are informed of DM entering/leaving, 266 * If 'silent_dm' is non zero, other players are informed of DM entering/leaving,
78 * else they just think someone left/entered. 267 * else they just think someone left/entered.
79 */ 268 */
80void 269static void
81do_wizard_hide (object *op, int silent_dm) 270do_wizard_hide (object *op, int silent_dm)
82{ 271{
83 if (op->contr->hidden) 272 if (op->contr->hidden)
84 { 273 {
85 op->contr->hidden = 0; 274 op->contr->hidden = 0;
… …
172 become_follower (ob, god); 361 become_follower (ob, god);
173 return 1; 362 return 1;
174} 363}
175 364
176// TODO: Rewrite banish in perl and get rid of the following two functions 365// TODO: Rewrite banish in perl and get rid of the following two functions
177int 366static int
178command_kick (object *op, char *params) 367command_kick (object *op, char *params)
179{ 368{
180 for_all_players (pl) 369 for_all_players (pl)
181 if ((params == NULL || !strcmp (&pl->ob->name, params)) && !INVOKE_PLAYER (KICK, pl, ARG_STRING (params))) 370 if ((params == NULL || !strcmp (&pl->ob->name, params)) && !INVOKE_PLAYER (KICK, pl, ARG_STRING (params)))
182 { 371 {
… …
451 { 640 {
452 art = find_artifactlist (at->type)->items; 641 art = find_artifactlist (at->type)->items;
453 642
454 while (art) 643 while (art)
455 { 644 {
456 if (!strcmp (art->item->name, cp)) 645 if (!strcmp (&art->item->name, cp))
457 break; 646 break;
458 647
459 art = art->next; 648 art = art->next;
460 } 649 }
461 650
… …
832 int q; 1021 int q;
833 long long i; // use sint64 and finally provide format specifiers for sint64 etc. via configure 1022 long long i; // use sint64 and finally provide format specifiers for sint64 etc. via configure
834 object *skillob = NULL; 1023 object *skillob = NULL;
835 1024
836 skill[0] = '\0'; 1025 skill[0] = '\0';
837 if ((params == NULL) || (strlen (params) > MAX_BUF) || ((q = sscanf (params, "%s %lld %s", buf, &i, skill)) < 2)) 1026 if ((params == NULL) || (strlen (params) > MAX_BUF) || ((q = sscanf (params, "%s %lld %[^\n]", buf, &i, skill)) < 2))
838 { 1027 {
839 new_draw_info (NDI_UNIQUE, 0, op, "Usage: addexp <who> <how much> [<skill>]."); 1028 new_draw_info (NDI_UNIQUE, 0, op, "Usage: addexp <who> <how much> [<skill>].");
840 return 1; 1029 return 1;
841 } 1030 }
842 1031
… …
889 new_draw_info (NDI_UNIQUE, 0, op, "Who?"); 1078 new_draw_info (NDI_UNIQUE, 0, op, "Who?");
890 return 1; 1079 return 1;
891 } 1080 }
892 1081
893 for_all_players (pl) 1082 for_all_players (pl)
894 if (!strcmp (pl->ob->name, thing)) 1083 if (!strcmp (&pl->ob->name, thing))
895 { 1084 {
896 sprintf (buf, "Str : %-2d H.P. : %-4d MAX : %d", pl->ob->stats.Str, pl->ob->stats.hp, pl->ob->stats.maxhp); 1085 sprintf (buf, "Str : %-2d H.P. : %-4d MAX : %d", pl->ob->stats.Str, pl->ob->stats.hp, pl->ob->stats.maxhp);
897 new_draw_info (NDI_UNIQUE, 0, op, buf); 1086 new_draw_info (NDI_UNIQUE, 0, op, buf);
898 sprintf (buf, "Dex : %-2d S.P. : %-4d MAX : %d", pl->ob->stats.Dex, pl->ob->stats.sp, pl->ob->stats.maxsp); 1087 sprintf (buf, "Dex : %-2d S.P. : %-4d MAX : %d", pl->ob->stats.Dex, pl->ob->stats.sp, pl->ob->stats.maxsp);
899 new_draw_info (NDI_UNIQUE, 0, op, buf); 1088 new_draw_info (NDI_UNIQUE, 0, op, buf);
… …
942 return 1; 1131 return 1;
943 } 1132 }
944 1133
945 for_all_players (pl) 1134 for_all_players (pl)
946 { 1135 {
947 if (!strcmp (pl->ob->name, thing)) 1136 if (!strcmp (&pl->ob->name, thing))
948 { 1137 {
949 if (!strcmp ("str", thing2)) pl->ob->stats.Str = iii, pl->orig_stats.Str = iii; 1138 if (!strcmp ("str", thing2)) pl->ob->stats.Str = iii, pl->orig_stats.Str = iii;
950 if (!strcmp ("dex", thing2)) pl->ob->stats.Dex = iii, pl->orig_stats.Dex = iii; 1139 if (!strcmp ("dex", thing2)) pl->ob->stats.Dex = iii, pl->orig_stats.Dex = iii;
951 if (!strcmp ("con", thing2)) pl->ob->stats.Con = iii, pl->orig_stats.Con = iii; 1140 if (!strcmp ("con", thing2)) pl->ob->stats.Con = iii, pl->orig_stats.Con = iii;
952 if (!strcmp ("wis", thing2)) pl->ob->stats.Wis = iii, pl->orig_stats.Wis = iii; 1141 if (!strcmp ("wis", thing2)) pl->ob->stats.Wis = iii, pl->orig_stats.Wis = iii;
… …
969command_nowiz (object *op, char *params) 1158command_nowiz (object *op, char *params)
970{ /* 'nodm' is alias */ 1159{ /* 'nodm' is alias */
971 CLEAR_FLAG (op, FLAG_WIZ); 1160 CLEAR_FLAG (op, FLAG_WIZ);
972 CLEAR_FLAG (op, FLAG_WIZPASS); 1161 CLEAR_FLAG (op, FLAG_WIZPASS);
973 CLEAR_FLAG (op, FLAG_WIZCAST); 1162 CLEAR_FLAG (op, FLAG_WIZCAST);
1163 CLEAR_FLAG (op, FLAG_WIZLOOK);
1164 op->contr->do_los = 1;
974 1165
975 if (op->contr->hidden) 1166 if (op->contr->hidden)
976 { 1167 {
977 new_draw_info (NDI_UNIQUE, 0, op, "You are no longer hidden from other players"); 1168 new_draw_info (NDI_UNIQUE, 0, op, "You are no longer hidden from other players");
978 op->map->players++; 1169 op->map->players++;
… …
980 op->contr->hidden = 0; 1171 op->contr->hidden = 0;
981 op->invisible = 1; 1172 op->invisible = 1;
982 } 1173 }
983 else 1174 else
984 new_draw_info (NDI_UNIQUE | NDI_ALL | NDI_LT_GREEN, 1, NULL, "The Dungeon Master is gone.."); 1175 new_draw_info (NDI_UNIQUE | NDI_ALL | NDI_LT_GREEN, 1, NULL, "The Dungeon Master is gone..");
1176
985 return 1; 1177 return 1;
986} 1178}
987 1179
988/** 1180/**
989 * object *op is trying to become dm. 1181 * object *op is trying to become dm.
… …
1026 } 1218 }
1027 fclose (dmfile); 1219 fclose (dmfile);
1028 return (0); 1220 return (0);
1029} 1221}
1030 1222
1031int 1223static int
1032do_wizard_dm (object *op, char *params, int silent) 1224do_wizard_dm (object *op, char *params, int silent)
1033{ 1225{
1034 if (!op->contr) 1226 if (!op->contr)
1035 return 0; 1227 return 0;
1036 1228
… …
1043 if (checkdm (op, op->name, (params ? params : "*"), op->contr->ns->host)) 1235 if (checkdm (op, op->name, (params ? params : "*"), op->contr->ns->host))
1044 { 1236 {
1045 SET_FLAG (op, FLAG_WIZ); 1237 SET_FLAG (op, FLAG_WIZ);
1046 SET_FLAG (op, FLAG_WIZPASS); 1238 SET_FLAG (op, FLAG_WIZPASS);
1047 SET_FLAG (op, FLAG_WIZCAST); 1239 SET_FLAG (op, FLAG_WIZCAST);
1240 SET_FLAG (op, FLAG_WIZLOOK);
1241 op->contr->do_los = 1;
1048 1242
1049 new_draw_info (NDI_UNIQUE, 0, op, "Ok, you are the Dungeon Master!"); 1243 new_draw_info (NDI_UNIQUE, 0, op, "Ok, you are the Dungeon Master!");
1050 /*
1051 * Remove setting flying here - that won't work, because next
1052 * fix_player() is called that will get cleared - proper solution
1053 * is probably something like a wiz_force which gives that and any
1054 * other desired abilities.
1055 */
1056 op->contr->clear_los (0);
1057 op->contr->write_buf[0] = '\0'; 1244 op->contr->write_buf[0] = '\0';
1058 1245
1059 if (!silent) 1246 if (!silent)
1060 new_draw_info (NDI_UNIQUE | NDI_ALL | NDI_LT_GREEN, 1, NULL, "The Dungeon Master has arrived!"); 1247 new_draw_info (NDI_UNIQUE | NDI_ALL | NDI_LT_GREEN, 1, NULL, "The Dungeon Master has arrived!");
1061 1248
… …
1101 * Returns spell object (from archetypes) by name. 1288 * Returns spell object (from archetypes) by name.
1102 * Returns NULL if 0 or more than one spell matches. 1289 * Returns NULL if 0 or more than one spell matches.
1103 * Used for wizard's learn spell/prayer. 1290 * Used for wizard's learn spell/prayer.
1104 * 1291 *
1105 * op is the player issuing the command. 1292 * op is the player issuing the command.
1106 *
1107 * Ignores archetypes "spelldirect_xxx" since these archetypes are not used
1108 * anymore (but may still be present in some player's inventories and thus
1109 * cannot be removed). We have to ignore them here since they have the same
1110 * name than other "spell_xxx" archetypes and would always conflict.
1111 */ 1293 */
1112static object * 1294static object *
1113get_spell_by_name (object *op, const char *spell_name) 1295get_spell_by_name (object *op, shstr_cmp spell_name)
1114{ 1296{
1115 archetype *at; 1297 /* First check for full name matches. */
1298 int conflict_found = 0;
1116 archetype *found; 1299 archetype *found;
1117 int conflict_found;
1118 size_t spell_name_length;
1119
1120 /* First check for full name matches. */
1121 conflict_found = 0;
1122 found = NULL;
1123 for_all_archetypes (at) 1300 for_all_archetypes (at)
1124 { 1301 {
1125 if (at->type != SPELL) 1302 if (at->type != SPELL)
1126 continue; 1303 continue;
1127 1304
1128 if (strncmp (at->archname, "spelldirect_", 12) == 0) 1305 if (at->object::name != spell_name)
1129 continue; 1306 continue;
1130 1307
1131 if (strcmp (at->object::name, spell_name) != 0)
1132 continue;
1133
1134 if (found != NULL) 1308 if (found)
1135 { 1309 {
1136 if (!conflict_found) 1310 if (!conflict_found)
1137 { 1311 {
1138 conflict_found = 1; 1312 conflict_found = 1;
1139 new_draw_info_format (NDI_UNIQUE, 0, op, "More than one archetype matches the spell name %s:", spell_name); 1313 new_draw_info_format (NDI_UNIQUE, 0, op, "More than one archetype matches the spell name %s:", &spell_name);
1140 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s", &found->archname); 1314 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s", &found->archname);
1141 } 1315 }
1142 1316
1143 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s", &at->archname); 1317 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s", &at->archname);
1144 continue; 1318 return 0;
1145 } 1319 }
1146 1320
1147 found = at; 1321 found = at;
1148 } 1322 }
1149 1323
1150 /* No match if more more than one archetype matches. */
1151 if (conflict_found)
1152 return NULL;
1153
1154 /* Return if exactly one archetype matches. */ 1324 /* Return if exactly one archetype matches. */
1155 if (found != NULL) 1325 if (found)
1156 return arch_to_object (found); 1326 return arch_to_object (found);
1157 1327
1158 /* No full match found: now check for partial matches. */
1159 spell_name_length = strlen (spell_name);
1160 conflict_found = 0;
1161 found = NULL;
1162 for_all_archetypes (at)
1163 {
1164 if (at->type != SPELL)
1165 continue;
1166
1167 if (strncmp (at->archname, "spelldirect_", 12) == 0)
1168 continue;
1169
1170 if (strncmp (at->object::name, spell_name, spell_name_length) != 0)
1171 continue;
1172
1173 if (found != NULL)
1174 {
1175 if (!conflict_found)
1176 {
1177 conflict_found = 1;
1178 new_draw_info_format (NDI_UNIQUE, 0, op, "More than one spell matches %s:", spell_name);
1179 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s", &found->object::name);
1180 }
1181 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s", &at->object::name);
1182 continue;
1183 }
1184
1185 found = at;
1186 }
1187
1188 /* No match if more more than one archetype matches. */
1189 if (conflict_found)
1190 return NULL;
1191
1192 /* Return if exactly one archetype matches. */
1193 if (found != NULL)
1194 return arch_to_object (found);
1195
1196 /* No spell found: just print an error message. */ 1328 /* No spell found: just print an error message. */
1197 new_draw_info_format (NDI_UNIQUE, 0, op, "The spell %s does not exist.", spell_name); 1329 new_draw_info_format (NDI_UNIQUE, 0, op, "The spell does not exist.");
1330
1198 return NULL; 1331 return 0;
1199} 1332}
1200 1333
1201static int 1334static int
1202command_learn_spell_or_prayer (object *op, char *params, int special_prayer) 1335command_learn_spell_or_prayer (object *op, char *params, int special_prayer)
1203{ 1336{
… …
1272 return 0; 1405 return 0;
1273 1406
1274 do_wizard_hide (op, 1); 1407 do_wizard_hide (op, 1);
1275 1408
1276 return 1; 1409 return 1;
1277}
1278
1279void
1280dm_stack_pop (player *pl)
1281{
1282 if (!pl->stack_items || !pl->stack_position)
1283 {
1284 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Empty stack!");
1285 return;
1286 }
1287
1288 pl->stack_position--;
1289 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Popped item from stack, %d left.", pl->stack_position);
1290}
1291
1292/**
1293 * Get current stack top item for player.
1294 * Returns NULL if no stacked item.
1295 * If stacked item disappeared (freed), remove it.
1296 *
1297 * Ryo, august 2004
1298 */
1299object *
1300dm_stack_peek (player *pl)
1301{
1302 object *ob;
1303
1304 if (!pl->stack_position)
1305 {
1306 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Empty stack!");
1307 return NULL;
1308 }
1309
1310 ob = find_object (pl->stack_items[pl->stack_position - 1]);
1311 if (!ob)
1312 {
1313 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Stacked item was removed!");
1314 dm_stack_pop (pl);
1315 return NULL;
1316 }
1317
1318 return ob;
1319}
1320
1321/**
1322 * Push specified item on player stack.
1323 * Inform player of position.
1324 * Initializes variables if needed.
1325 */
1326void
1327dm_stack_push (player *pl, tag_t item)
1328{
1329 if (!pl->stack_items)
1330 {
1331 pl->stack_items = (tag_t *) malloc (sizeof (tag_t) * STACK_SIZE);
1332 memset (pl->stack_items, 0, sizeof (tag_t) * STACK_SIZE);
1333 }
1334
1335 if (pl->stack_position == STACK_SIZE)
1336 {
1337 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Item stack full!");
1338 return;
1339 }
1340
1341 pl->stack_items[pl->stack_position] = item;
1342 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Item stacked as %d.", pl->stack_position);
1343 pl->stack_position++;
1344}
1345
1346/**
1347 * Checks 'params' for object code.
1348 *
1349 * Can be:
1350 * * empty => get current object stack top for player
1351 * * number => get item with that tag, stack it for future use
1352 * * $number => get specified stack item
1353 * * "me" => player himself
1354 *
1355 * At function exit, params points to first non-object char
1356 *
1357 * 'from', if not NULL, contains at exit:
1358 * * STACK_FROM_NONE => object not found
1359 * * STACK_FROM_TOP => top item stack, may be NULL if stack was empty
1360 * * STACK_FROM_STACK => item from somewhere in the stack
1361 * * STACK_FROM_NUMBER => item by number, pushed on stack
1362 *
1363 * Ryo, august 2004
1364 */
1365object *
1366get_dm_object (player *pl, char **params, int *from)
1367{
1368 int item_tag, item_position;
1369 object *ob;
1370
1371 if (!pl)
1372 return NULL;
1373
1374 if (!params || !*params || **params == '\0')
1375 {
1376 if (from)
1377 *from = STACK_FROM_TOP;
1378 /* No parameter => get stack item */
1379 return dm_stack_peek (pl);
1380 }
1381
1382 /* Let's clean white spaces */
1383 while (**params == ' ')
1384 (*params)++;
1385
1386 /* Next case: number => item tag */
1387 if (sscanf (*params, "%d", &item_tag))
1388 {
1389 /* Move parameter to next item */
1390 while (isdigit (**params))
1391 (*params)++;
1392
1393 /* And skip blanks, too */
1394 while (**params == ' ')
1395 (*params)++;
1396
1397 /* Get item */
1398 ob = find_object (item_tag);
1399 if (!ob)
1400 {
1401 if (from)
1402 *from = STACK_FROM_NONE;
1403 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "No such item %d!", item_tag);
1404 return NULL;
1405 }
1406
1407 /* Got one, let's push it on stack */
1408 dm_stack_push (pl, item_tag);
1409 if (from)
1410 *from = STACK_FROM_NUMBER;
1411 return ob;
1412 }
1413
1414 /* Next case: $number => stack item */
1415 if (sscanf (*params, "$%d", &item_position))
1416 {
1417 /* Move parameter to next item */
1418 (*params)++;
1419
1420 while (isdigit (**params))
1421 (*params)++;
1422 while (**params == ' ')
1423 (*params)++;
1424
1425 if (item_position >= pl->stack_position)
1426 {
1427 if (from)
1428 *from = STACK_FROM_NONE;
1429 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "No such stack item %d!", item_position);
1430 return NULL;
1431 }
1432
1433 ob = find_object (pl->stack_items[item_position]);
1434 if (!ob)
1435 {
1436 if (from)
1437 *from = STACK_FROM_NONE;
1438 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Stack item %d was removed.", item_position);
1439 return NULL;
1440 }
1441
1442 if (from)
1443 *from = item_position < pl->stack_position - 1 ? STACK_FROM_STACK : STACK_FROM_TOP;
1444 return ob;
1445 }
1446
1447 /* Next case: 'me' => return pl->ob */
1448 if (!strncmp (*params, "me", 2))
1449 {
1450 if (from)
1451 *from = STACK_FROM_NUMBER;
1452 dm_stack_push (pl, pl->ob->count);
1453
1454 /* Skip to next token */
1455 (*params) += 2;
1456 while (**params == ' ')
1457 (*params)++;
1458
1459 return pl->ob;
1460 }
1461
1462 /* Last case: get stack top */
1463 if (from)
1464 *from = STACK_FROM_TOP;
1465 return dm_stack_peek (pl);
1466} 1410}
1467 1411
1468/** 1412/**
1469 * Pop the stack top. 1413 * Pop the stack top.
1470 */ 1414 */

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