1 |
elmex |
1.1 |
/* |
2 |
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CrossFire, A Multiplayer game for X-windows |
3 |
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4 |
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Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team |
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Copyright (C) 1992 Frank Tore Johansen |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
root |
1.6 |
The authors can be reached via e-mail at <crossfire@schmorp.de> |
22 |
elmex |
1.1 |
*/ |
23 |
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24 |
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25 |
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#include <global.h> |
26 |
pippijn |
1.8 |
#include <unistd.h> |
27 |
root |
1.4 |
|
28 |
elmex |
1.1 |
/* |
29 |
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* Pass a char array, returns a pointer to the region of the same name. |
30 |
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* if it can't find a region of the same name it returns the first region |
31 |
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* with the 'fallback' property set. |
32 |
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* if it can't find a matching name /or/ a fallback region it logs an info message |
33 |
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* message and returns NULL |
34 |
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* used by the map parsing code. |
35 |
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*/ |
36 |
root |
1.4 |
region * |
37 |
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get_region_by_name (const char *region_name) |
38 |
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{ |
39 |
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region *reg; |
40 |
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char *p = strchr (region_name, '\n'); |
41 |
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42 |
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if (p) |
43 |
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*p = '\0'; |
44 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
45 |
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if (!strcmp (reg->name, region_name)) |
46 |
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return reg; |
47 |
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48 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
49 |
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{ |
50 |
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if (reg->fallback) |
51 |
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{ |
52 |
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LOG (llevDebug, "region called %s requested, but not found, fallback used.\n", region_name); |
53 |
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return reg; |
54 |
root |
1.2 |
} |
55 |
elmex |
1.1 |
} |
56 |
root |
1.4 |
LOG (llevInfo, "Got no region or fallback for region %s.\n", region_name); |
57 |
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return NULL; |
58 |
elmex |
1.1 |
} |
59 |
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|
60 |
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/* This might need optimising at some point. */ |
61 |
root |
1.4 |
region * |
62 |
root |
1.7 |
get_region_by_map (maptile *m) |
63 |
root |
1.4 |
{ |
64 |
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return get_region_by_name (get_name_of_region_for_map (m)); |
65 |
elmex |
1.1 |
} |
66 |
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|
67 |
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/* |
68 |
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* Since we won't assume all maps have a region set properly, we need an |
69 |
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* explicit check that it is, this is much nicer here than scattered throughout |
70 |
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* the map code. |
71 |
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*/ |
72 |
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73 |
root |
1.4 |
const char * |
74 |
root |
1.7 |
get_name_of_region_for_map (const maptile *m) |
75 |
root |
1.4 |
{ |
76 |
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region *reg; |
77 |
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78 |
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if (m->region != NULL) |
79 |
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return m->region->name; |
80 |
root |
1.12 |
|
81 |
root |
1.4 |
for (reg = first_region; reg != NULL; reg = reg->next) |
82 |
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{ |
83 |
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if (reg->fallback) |
84 |
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return reg->name; |
85 |
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} |
86 |
root |
1.12 |
|
87 |
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LOG (llevInfo, "map %s had no region and I couldn't find a fallback to use.\n", &m->name); |
88 |
root |
1.4 |
return "unknown"; |
89 |
elmex |
1.1 |
} |
90 |
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|
91 |
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/* |
92 |
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* Tries to find a region that 'name' corresponds to. |
93 |
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* It looks, in order, for: |
94 |
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* an exact match to region name (case insensitive) |
95 |
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* an exact match to longname (case insensitive) |
96 |
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* a substring that matches to the longname (eg Kingdom) |
97 |
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* a substring that matches to the region name (eg nav) |
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* if it can find none of these it returns the first parentless region |
99 |
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* (there should be only one of these - the top level one) |
100 |
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* If we got a NULL, then just return the top level region |
101 |
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* |
102 |
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*/ |
103 |
root |
1.4 |
region * |
104 |
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get_region_from_string (const char *name) |
105 |
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{ |
106 |
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region *reg; |
107 |
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char *substr; |
108 |
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char *p; |
109 |
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110 |
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if (name == NULL) |
111 |
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{ |
112 |
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for (reg = first_region; reg->parent != NULL; reg = reg->parent); |
113 |
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return reg; |
114 |
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} |
115 |
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p = strchr (name, '\n'); |
116 |
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if (p) |
117 |
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*p = '\0'; |
118 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
119 |
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if (!strcasecmp (reg->name, name)) |
120 |
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return reg; |
121 |
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122 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
123 |
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if (reg->longname != NULL) |
124 |
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{ |
125 |
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if (!strcasecmp (reg->longname, name)) |
126 |
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return reg; |
127 |
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} |
128 |
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129 |
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substr = NULL; |
130 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
131 |
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if (reg->longname != NULL) |
132 |
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{ |
133 |
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substr = strstr (reg->longname, name); |
134 |
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if (substr != NULL) |
135 |
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return reg; |
136 |
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} |
137 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
138 |
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if (reg->longname != NULL) |
139 |
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{ |
140 |
root |
1.2 |
/* |
141 |
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* This is not a bug, we want the region that is most identifiably a discrete |
142 |
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* area in the game, eg if we have 'scor', we want to return 'scorn' and not |
143 |
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* 'scornarena', regardless of their order on the list so we only look at those |
144 |
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* regions with a longname set. |
145 |
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*/ |
146 |
root |
1.4 |
substr = strstr (reg->name, name); |
147 |
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if (substr != NULL) |
148 |
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return reg; |
149 |
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} |
150 |
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for (reg = first_region; reg != NULL; reg = reg->next) |
151 |
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{ |
152 |
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substr = strstr (reg->name, name); |
153 |
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if (substr != NULL) |
154 |
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return reg; |
155 |
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} |
156 |
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/* if we are still here, we are going to have to give up, and give the top level region */ |
157 |
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for (reg = first_region; reg->parent != NULL; reg = reg->parent); |
158 |
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return reg; |
159 |
elmex |
1.1 |
} |
160 |
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161 |
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/* |
162 |
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* returns 1 if the player is in the region reg, or a child region thereof |
163 |
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* otherwise returns 0 |
164 |
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* if passed a NULL region returns -1 |
165 |
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*/ |
166 |
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167 |
root |
1.4 |
int |
168 |
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region_is_child_of_region (const region * child, const region * r) |
169 |
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{ |
170 |
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171 |
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if (r == NULL) |
172 |
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return -1; |
173 |
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if (child == NULL) |
174 |
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return 0; |
175 |
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if (!strcmp (child->name, r->name)) |
176 |
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return 1; |
177 |
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else if (child->parent != NULL) |
178 |
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return region_is_child_of_region (child->parent, r); |
179 |
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else |
180 |
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return 0; |
181 |
elmex |
1.1 |
} |
182 |
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183 |
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/* |
184 |
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* the longname of a region is not a required field, any given region |
185 |
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* may want to not set it and use the parent's one instead. so, we: |
186 |
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* 1. check if a longname is set and if so return it. |
187 |
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* 2. check if there is a parent and try and call the function against that |
188 |
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* 3. return a obviously wrong string if we can't get a longname, this should |
189 |
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* never happen. We also log a debug message. |
190 |
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*/ |
191 |
root |
1.4 |
const char * |
192 |
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get_region_longname (const region * r) |
193 |
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{ |
194 |
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195 |
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if (r->longname != NULL) |
196 |
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return r->longname; |
197 |
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else if (r->parent != NULL) |
198 |
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return get_region_longname (r->parent); |
199 |
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else |
200 |
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{ |
201 |
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LOG (llevDebug, "NOTICE region %s has no parent and no longname.\n", r->name); |
202 |
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return "no name can be found for the current region"; |
203 |
elmex |
1.1 |
} |
204 |
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} |
205 |
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206 |
root |
1.4 |
const char * |
207 |
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get_region_msg (const region * r) |
208 |
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{ |
209 |
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if (r->msg != NULL) |
210 |
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return r->msg; |
211 |
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else if (r->parent != NULL) |
212 |
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return get_region_msg (r->parent); |
213 |
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else |
214 |
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{ |
215 |
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LOG (llevDebug, "NOTICE region %s has no parent and no msg.\n", r->name); |
216 |
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return "no description can be found for the current region"; |
217 |
elmex |
1.1 |
} |
218 |
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} |
219 |
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220 |
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/** Returns an object which is an exit through which the player represented by op should be |
221 |
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* sent in order to be imprisoned. If there is no suitable place to which an exit can be |
222 |
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* constructed, then NULL will be returned. The caller is responsible for freeing the object |
223 |
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* created by this function. |
224 |
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*/ |
225 |
root |
1.4 |
object * |
226 |
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get_jail_exit (object *op) |
227 |
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{ |
228 |
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region *reg; |
229 |
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object *exit; |
230 |
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|
231 |
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if (op->type != PLAYER) |
232 |
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{ |
233 |
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LOG (llevError, "region.c: get_jail_exit called against non-player object.\n"); |
234 |
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return NULL; |
235 |
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} |
236 |
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reg = get_region_by_map (op->map); |
237 |
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while (reg != NULL) |
238 |
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{ |
239 |
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if (reg->jailmap) |
240 |
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{ |
241 |
root |
1.9 |
exit = object::create (); |
242 |
root |
1.4 |
EXIT_PATH (exit) = reg->jailmap; |
243 |
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/* damned exits reset savebed and remove teleports, so the prisoner can't escape */ |
244 |
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SET_FLAG (exit, FLAG_DAMNED); |
245 |
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EXIT_X (exit) = reg->jailx; |
246 |
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EXIT_Y (exit) = reg->jaily; |
247 |
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return exit; |
248 |
root |
1.2 |
} |
249 |
root |
1.4 |
else |
250 |
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reg = reg->parent; |
251 |
elmex |
1.1 |
} |
252 |
root |
1.4 |
LOG (llevDebug, "No suitable jailmap for region %s was found.\n", reg->name); |
253 |
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return NULL; |
254 |
elmex |
1.1 |
} |
255 |
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|
256 |
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/* |
257 |
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* First initialises the archtype hash-table (init_archetable()). |
258 |
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* Reads and parses the archetype file (with the first and second-pass |
259 |
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* functions). |
260 |
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* Then initialises treasures by calling load_treasures(). |
261 |
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*/ |
262 |
root |
1.4 |
void |
263 |
|
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init_regions (void) |
264 |
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{ |
265 |
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FILE *fp; |
266 |
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char filename[MAX_BUF]; |
267 |
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int comp; |
268 |
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|
269 |
|
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if (first_region != NULL) /* Only do this once */ |
270 |
elmex |
1.1 |
return; |
271 |
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|
272 |
root |
1.4 |
sprintf (filename, "%s/%s/%s", settings.datadir, settings.mapdir, settings.regions); |
273 |
|
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LOG (llevDebug, "Reading regions from %s...\n", filename); |
274 |
|
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if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL) |
275 |
|
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{ |
276 |
|
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LOG (llevError, " Can't open regions file %s in init_regions.\n", filename); |
277 |
|
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return; |
278 |
|
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} |
279 |
|
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parse_regions (fp); |
280 |
|
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assign_region_parents (); |
281 |
|
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LOG (llevDebug, " done\n"); |
282 |
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|
283 |
|
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close_and_delete (fp, comp); |
284 |
elmex |
1.1 |
} |
285 |
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|
286 |
|
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/* |
287 |
|
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* Allocates and zeros a region struct, this isn't free()'d anywhere, so might |
288 |
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* be a memory leak, but it shouldn't matter too much since it isn't called that |
289 |
|
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* often.... |
290 |
|
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*/ |
291 |
|
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|
292 |
root |
1.4 |
region * |
293 |
|
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get_region_struct (void) |
294 |
|
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{ |
295 |
root |
1.10 |
return new region; |
296 |
elmex |
1.1 |
} |
297 |
|
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|
298 |
|
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/* |
299 |
|
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* Reads/parses the region file, and copies into a linked list |
300 |
|
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* of region structs. |
301 |
|
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*/ |
302 |
root |
1.4 |
void |
303 |
|
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parse_regions (FILE * fp) |
304 |
|
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{ |
305 |
|
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region *newreg; |
306 |
|
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region *reg; |
307 |
|
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|
308 |
|
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char buf[HUGE_BUF], msgbuf[HUGE_BUF], *key = NULL, *value, *end; |
309 |
|
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int msgpos = 0; |
310 |
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|
311 |
|
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newreg = NULL; |
312 |
|
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while (fgets (buf, HUGE_BUF - 1, fp) != NULL) |
313 |
|
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{ |
314 |
|
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buf[HUGE_BUF - 1] = 0; |
315 |
|
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key = buf; |
316 |
|
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while (isspace (*key)) |
317 |
|
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key++; |
318 |
|
|
if (*key == 0) |
319 |
|
|
continue; /* empty line */ |
320 |
|
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value = strchr (key, ' '); |
321 |
|
|
if (!value) |
322 |
|
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{ |
323 |
|
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end = strchr (key, '\n'); |
324 |
|
|
*end = 0; |
325 |
|
|
} |
326 |
|
|
else |
327 |
|
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{ |
328 |
|
|
*value = 0; |
329 |
|
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value++; |
330 |
|
|
while (isspace (*value)) |
331 |
root |
1.2 |
value++; |
332 |
root |
1.4 |
end = strchr (value, '\n'); |
333 |
root |
1.2 |
} |
334 |
root |
1.4 |
|
335 |
|
|
/* |
336 |
|
|
* This is a bizzare mutated form of the map and archetype parser |
337 |
|
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* rolled into one. Key is the field name, value is what it should |
338 |
|
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* be set to. |
339 |
|
|
* We've already done the work to null terminate key, |
340 |
|
|
* and strip off any leading spaces for both of these. |
341 |
|
|
* We have not touched the newline at the end of the line - |
342 |
|
|
* these might be needed for some values. the end pointer |
343 |
|
|
* points to the first of the newlines. |
344 |
|
|
* value could be NULL! It would be easy enough to just point |
345 |
|
|
* this to "" to prevent cores, but that would let more errors slide |
346 |
|
|
* through. |
347 |
|
|
*/ |
348 |
|
|
if (!strcmp (key, "region")) |
349 |
|
|
{ |
350 |
|
|
*end = 0; |
351 |
|
|
newreg = get_region_struct (); |
352 |
root |
1.11 |
newreg->name = strdup (value); |
353 |
root |
1.4 |
} |
354 |
|
|
else if (!strcmp (key, "parent")) |
355 |
|
|
{ |
356 |
|
|
/* |
357 |
|
|
* Note that this is in the initialisation code, so we don't actually |
358 |
|
|
* assign the pointer to the parent yet, because it might not have been |
359 |
|
|
* parsed. |
360 |
|
|
*/ |
361 |
|
|
*end = 0; |
362 |
root |
1.11 |
newreg->parent_name = strdup (value); |
363 |
root |
1.4 |
} |
364 |
|
|
else if (!strcmp (key, "longname")) |
365 |
|
|
{ |
366 |
|
|
*end = 0; |
367 |
root |
1.11 |
newreg->longname = strdup (value); |
368 |
root |
1.4 |
} |
369 |
|
|
else if (!strcmp (key, "jail")) |
370 |
|
|
{ |
371 |
|
|
/* jail entries are of the form: /path/to/map x y */ |
372 |
|
|
char path[MAX_BUF]; |
373 |
|
|
int x, y; |
374 |
|
|
|
375 |
|
|
if (sscanf (value, "%[^ ] %d %d\n", path, &x, &y) != 3) |
376 |
|
|
{ |
377 |
|
|
LOG (llevError, "region.c: malformated regions entry: jail %s\n", value); |
378 |
|
|
continue; |
379 |
root |
1.2 |
} |
380 |
root |
1.11 |
newreg->jailmap = strdup (path); |
381 |
root |
1.4 |
newreg->jailx = x; |
382 |
|
|
newreg->jaily = y; |
383 |
|
|
} |
384 |
|
|
else if (!strcmp (key, "msg")) |
385 |
|
|
{ |
386 |
|
|
while (fgets (buf, HUGE_BUF - 1, fp) != NULL) |
387 |
|
|
{ |
388 |
|
|
if (!strcmp (buf, "endmsg\n")) |
389 |
|
|
break; |
390 |
|
|
else |
391 |
|
|
{ |
392 |
|
|
strcpy (msgbuf + msgpos, buf); |
393 |
|
|
msgpos += strlen (buf); |
394 |
root |
1.2 |
} |
395 |
|
|
} |
396 |
root |
1.4 |
/* |
397 |
|
|
* There may be regions with empty messages (eg, msg/endmsg |
398 |
|
|
* with nothing between). When maps are loaded, this is done |
399 |
|
|
* so better do it here too... |
400 |
|
|
*/ |
401 |
|
|
if (msgpos != 0) |
402 |
root |
1.11 |
newreg->msg = strdup (msgbuf); |
403 |
root |
1.4 |
|
404 |
|
|
/* we have to reset msgpos, or the next region will store both msg blocks. */ |
405 |
|
|
msgpos = 0; |
406 |
|
|
} |
407 |
|
|
else if (!strcmp (key, "fallback")) |
408 |
|
|
{ |
409 |
|
|
*end = 0; |
410 |
|
|
newreg->fallback = atoi (value); |
411 |
|
|
} |
412 |
|
|
else if (!strcmp (key, "end")) |
413 |
|
|
{ |
414 |
|
|
/* Place this new region last on the list, if the list is empty put it first */ |
415 |
|
|
for (reg = first_region; reg != NULL && reg->next != NULL; reg = reg->next); |
416 |
|
|
|
417 |
|
|
if (reg == NULL) |
418 |
|
|
first_region = newreg; |
419 |
|
|
else |
420 |
|
|
reg->next = newreg; |
421 |
|
|
newreg = NULL; |
422 |
|
|
} |
423 |
|
|
else if (!strcmp (key, "nomore")) |
424 |
|
|
{ |
425 |
|
|
/* we have reached the end of the region specs.... */ |
426 |
|
|
break; |
427 |
|
|
} |
428 |
|
|
else |
429 |
|
|
{ |
430 |
|
|
/* we should never get here, if we have, then something is wrong */ |
431 |
|
|
LOG (llevError, "Got unknown value in region file: %s %s\n", key, value); |
432 |
|
|
} |
433 |
|
|
} |
434 |
|
|
if (!key || strcmp (key, "nomore")) |
435 |
|
|
LOG (llevError, "Got premature eof on regions file!\n"); |
436 |
|
|
} |
437 |
|
|
|
438 |
|
|
void |
439 |
|
|
assign_region_parents (void) |
440 |
|
|
{ |
441 |
|
|
region *reg; |
442 |
|
|
uint32 parent_count = 0; |
443 |
|
|
uint32 region_count = 0; |
444 |
|
|
|
445 |
|
|
for (reg = first_region; reg != NULL && reg->next != NULL; reg = reg->next) |
446 |
|
|
{ |
447 |
|
|
if (reg->parent_name != NULL) |
448 |
|
|
{ |
449 |
|
|
reg->parent = get_region_by_name (reg->parent_name); |
450 |
|
|
parent_count++; |
451 |
root |
1.2 |
} |
452 |
root |
1.4 |
region_count++; |
453 |
elmex |
1.1 |
} |
454 |
root |
1.4 |
LOG (llevDebug, "Assigned %u regions with %u parents.", region_count, parent_count); |
455 |
elmex |
1.1 |
} |