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root |
1.6 |
|
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elmex |
1.1 |
/* |
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* static char *rcsid_image_c = |
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root |
1.6 |
* "$Id: image.C,v 1.5 2006-09-08 16:51:42 root Exp $"; |
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elmex |
1.1 |
*/ |
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/* |
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CrossFire, A Multiplayer game for X-windows |
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Copyright (C) 2002 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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The maintainer of this code can be reached at crossfire-devel@real-time.com |
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*/ |
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#include <global.h> |
32 |
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#include <stdio.h> |
33 |
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34 |
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New_Face *new_faces; |
35 |
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36 |
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/* bmappair and xbm are used when looking for the image id numbers |
37 |
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* of a face by name. xbm is sorted alphabetically so that bsearch |
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* can be used to quickly find the entry for a name. the number is |
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* then an index into the new_faces array. |
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* This data is redundant with new_face information - the difference |
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* is that this data gets sorted, and that doesn't necessarily happen |
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* with the new_face data - when accessing new_face[some number], |
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* that some number corresponds to the face at that number - for |
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* xbm, it may not. At current time, these do in fact match because |
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* the bmaps file is created in a sorted order. |
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*/ |
47 |
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48 |
root |
1.4 |
struct bmappair |
49 |
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{ |
50 |
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char *name; |
51 |
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unsigned int number; |
52 |
elmex |
1.1 |
}; |
53 |
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54 |
root |
1.6 |
void free (bmappair *); // guard to catch free when delete should be used |
55 |
root |
1.4 |
|
56 |
root |
1.6 |
static struct bmappair *xbm = NULL; |
57 |
elmex |
1.1 |
|
58 |
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/* Following can just as easily be pointers, but |
59 |
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* it is easier to keep them like this. |
60 |
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*/ |
61 |
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New_Face *blank_face, *dark_faces[3], *empty_face, *smooth_face; |
62 |
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63 |
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/* nroffiles is the actual number of bitmaps defined. |
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* nrofpixmaps is the number of bitmaps loaded. With |
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* the automatic generation of the bmaps file, this is now equal |
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* to nroffiles. |
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* |
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* The xbm array (which contains name and number information, and |
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* is then sorted) contains nroffiles entries. the xbm_names |
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* array (which is used for converting the numeric face to |
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* a name) contains nrofpixmaps entries. |
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*/ |
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static int nroffiles = 0; |
75 |
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int nrofpixmaps = 0; |
76 |
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77 |
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/** |
78 |
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* id is the face to smooth, smooth is the 16x2 face used to smooth id. |
79 |
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*/ |
80 |
root |
1.6 |
struct smoothing:zero_initialised |
81 |
root |
1.4 |
{ |
82 |
root |
1.6 |
uint16 id; |
83 |
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uint16 smooth; |
84 |
elmex |
1.1 |
}; |
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root |
1.6 |
void free (smoothing *); // guard to catch free when delete should be used |
87 |
root |
1.4 |
|
88 |
elmex |
1.1 |
/** |
89 |
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* Contains all defined smoothing entries. smooth is an array of nrofsmooth |
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* entries. It is sorted by smooth[].id. |
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*/ |
92 |
root |
1.6 |
static struct smoothing *smooth = NULL; |
93 |
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int nrofsmooth = 0; |
94 |
elmex |
1.1 |
|
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/* the only thing this table is used for now is to |
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* translate the colorname in the magicmap field of the |
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* face into a numeric index that is then sent to the |
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* client for magic map commands. The order of this table |
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* must match that of the NDI colors in include/newclient.h. |
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*/ |
101 |
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static const char *const colorname[] = { |
102 |
root |
1.6 |
"black", /* 0 */ |
103 |
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"white", /* 1 */ |
104 |
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"blue", /* 2 */ |
105 |
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"red", /* 3 */ |
106 |
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"orange", /* 4 */ |
107 |
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"light_blue", /* 5 */ |
108 |
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"dark_orange", /* 6 */ |
109 |
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"green", /* 7 */ |
110 |
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"light_green", /* 8 */ |
111 |
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"grey", /* 9 */ |
112 |
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"brown", /* 10 */ |
113 |
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"yellow", /* 11 */ |
114 |
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"khaki" /* 12 */ |
115 |
elmex |
1.1 |
}; |
116 |
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117 |
root |
1.6 |
static int |
118 |
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compar (const struct bmappair *a, const struct bmappair *b) |
119 |
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{ |
120 |
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return strcmp (a->name, b->name); |
121 |
elmex |
1.1 |
} |
122 |
root |
1.6 |
static int |
123 |
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compar_smooth (const struct smoothing *a, const struct smoothing *b) |
124 |
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{ |
125 |
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if (a->id < b->id) |
126 |
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return -1; |
127 |
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if (b->id < a->id) |
128 |
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return 1; |
129 |
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return 0; |
130 |
elmex |
1.1 |
} |
131 |
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132 |
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/* |
134 |
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* Returns the matching color in the coloralias if found, |
135 |
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* 0 otherwise. Note that 0 will actually be black, so there is no |
136 |
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* way the calling function can tell if an error occurred or not |
137 |
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*/ |
138 |
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139 |
root |
1.6 |
static uint8 |
140 |
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find_color (const char *name) |
141 |
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{ |
142 |
elmex |
1.1 |
uint8 i; |
143 |
root |
1.6 |
|
144 |
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for (i = 0; i < sizeof (colorname) / sizeof (*colorname); i++) |
145 |
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if (!strcmp (name, colorname[i])) |
146 |
elmex |
1.1 |
return i; |
147 |
root |
1.6 |
LOG (llevError, "Unknown color: %s\n", name); |
148 |
elmex |
1.1 |
return 0; |
149 |
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} |
150 |
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151 |
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/* This reads the lib/faces file, getting color and visibility information. |
152 |
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* it is called by ReadBmapNames. |
153 |
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*/ |
154 |
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155 |
root |
1.6 |
static void |
156 |
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ReadFaceData (void) |
157 |
elmex |
1.1 |
{ |
158 |
root |
1.6 |
char buf[MAX_BUF], *cp; |
159 |
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New_Face *on_face = NULL; |
160 |
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FILE *fp; |
161 |
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162 |
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sprintf (buf, "%s/faces", settings.datadir); |
163 |
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LOG (llevDebug, "Reading faces from %s...", buf); |
164 |
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if ((fp = fopen (buf, "r")) == NULL) |
165 |
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{ |
166 |
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LOG (llevError, "Cannot open faces file %s: %s\n", buf, strerror (errno)); |
167 |
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exit (-1); |
168 |
elmex |
1.1 |
} |
169 |
root |
1.6 |
while (fgets (buf, MAX_BUF, fp) != NULL) |
170 |
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{ |
171 |
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if (*buf == '#') |
172 |
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continue; |
173 |
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if (!strncmp (buf, "end", 3)) |
174 |
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{ |
175 |
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on_face = NULL; |
176 |
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} |
177 |
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else if (!strncmp (buf, "face", 4)) |
178 |
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{ |
179 |
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int tmp; |
180 |
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181 |
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cp = buf + 5; |
182 |
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cp[strlen (cp) - 1] = '\0'; /* remove newline */ |
183 |
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184 |
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if ((tmp = FindFace (cp, -1)) == -1) |
185 |
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{ |
186 |
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LOG (llevError, "Could not find face %s\n", cp); |
187 |
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continue; |
188 |
root |
1.4 |
} |
189 |
root |
1.6 |
on_face = &new_faces[tmp]; |
190 |
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on_face->visibility = 0; |
191 |
root |
1.2 |
} |
192 |
root |
1.6 |
else if (on_face == NULL) |
193 |
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{ |
194 |
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LOG (llevError, "Got line with no face set: %s\n", buf); |
195 |
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} |
196 |
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else if (!strncmp (buf, "color_fg", 8)) |
197 |
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{ |
198 |
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cp = buf + 9; |
199 |
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cp[strlen (cp) - 1] = '\0'; |
200 |
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if (on_face->magicmap == 255) |
201 |
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on_face->magicmap = find_color (cp); |
202 |
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} |
203 |
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else if (!strncmp (buf, "color_bg", 8)) |
204 |
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{ |
205 |
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/* ignore it */ |
206 |
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} |
207 |
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else if (!strncmp (buf, "visibility", 10)) |
208 |
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{ |
209 |
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on_face->visibility = atoi (buf + 11); |
210 |
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} |
211 |
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else if (!strncmp (buf, "magicmap", 8)) |
212 |
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{ |
213 |
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cp = buf + 9; |
214 |
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cp[strlen (cp) - 1] = '\0'; |
215 |
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on_face->magicmap = find_color (cp); |
216 |
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} |
217 |
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else if (!strncmp (buf, "is_floor", 8)) |
218 |
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{ |
219 |
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int value = atoi (buf + 9); |
220 |
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221 |
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if (value) |
222 |
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on_face->magicmap |= FACE_FLOOR; |
223 |
root |
1.2 |
} |
224 |
root |
1.6 |
else |
225 |
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LOG (llevDebug, "Got unknown line in faces file: %s\n", buf); |
226 |
elmex |
1.1 |
} |
227 |
root |
1.6 |
LOG (llevDebug, "done\n"); |
228 |
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fclose (fp); |
229 |
elmex |
1.1 |
} |
230 |
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231 |
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/* This reads the bmaps file to get all the bitmap names and |
232 |
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* stuff. It only needs to be done once, because it is player |
233 |
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* independent (ie, what display the person is on will not make a |
234 |
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* difference.) |
235 |
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*/ |
236 |
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237 |
root |
1.6 |
void |
238 |
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ReadBmapNames (void) |
239 |
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{ |
240 |
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char buf[MAX_BUF], *p, *q; |
241 |
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FILE *fp; |
242 |
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int value, nrofbmaps = 0, i; |
243 |
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size_t l; |
244 |
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245 |
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bmaps_checksum = 0; |
246 |
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sprintf (buf, "%s/bmaps", settings.datadir); |
247 |
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LOG (llevDebug, "Reading bmaps from %s...", buf); |
248 |
|
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if ((fp = fopen (buf, "r")) == NULL) |
249 |
|
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{ |
250 |
|
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LOG (llevError, "Cannot open bmaps file %s: %s\n", buf, strerror (errno)); |
251 |
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exit (-1); |
252 |
elmex |
1.1 |
} |
253 |
root |
1.6 |
|
254 |
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/* First count how many bitmaps we have, so we can allocate correctly */ |
255 |
|
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while (fgets (buf, MAX_BUF, fp) != NULL) |
256 |
|
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if (buf[0] != '#' && buf[0] != '\n') |
257 |
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nrofbmaps++; |
258 |
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rewind (fp); |
259 |
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260 |
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xbm = new bmappair[nrofbmaps]; |
261 |
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memset (xbm, 0, sizeof (struct bmappair) * nrofbmaps); |
262 |
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263 |
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while (nroffiles < nrofbmaps && fgets (buf, MAX_BUF, fp) != NULL) |
264 |
|
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{ |
265 |
|
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if (*buf == '#') |
266 |
|
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continue; |
267 |
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268 |
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p = (*buf == '\\') ? (buf + 1) : buf; |
269 |
|
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if (!(p = strtok (p, " \t")) || !(q = strtok (NULL, " \t\n"))) |
270 |
|
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{ |
271 |
|
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LOG (llevDebug, "Warning, syntax error: %s\n", buf); |
272 |
|
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continue; |
273 |
|
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} |
274 |
|
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value = atoi (p); |
275 |
|
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xbm[nroffiles].name = strdup_local (q); |
276 |
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|
277 |
|
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/* We need to calculate the checksum of the bmaps file |
278 |
|
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* name->number mapping to send to the client. This does not |
279 |
|
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* need to match what sum or other utility may come up with - |
280 |
|
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* as long as we get the same results on the same real file |
281 |
|
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* data, it does the job as it lets the client know if |
282 |
|
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* the file has the same data or not. |
283 |
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*/ |
284 |
|
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ROTATE_RIGHT (bmaps_checksum); |
285 |
|
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bmaps_checksum += value & 0xff; |
286 |
|
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bmaps_checksum &= 0xffffffff; |
287 |
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|
288 |
|
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ROTATE_RIGHT (bmaps_checksum); |
289 |
|
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bmaps_checksum += (value >> 8) & 0xff; |
290 |
|
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bmaps_checksum &= 0xffffffff; |
291 |
|
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for (l = 0; l < strlen (q); l++) |
292 |
|
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{ |
293 |
|
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ROTATE_RIGHT (bmaps_checksum); |
294 |
|
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bmaps_checksum += q[l]; |
295 |
|
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bmaps_checksum &= 0xffffffff; |
296 |
|
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} |
297 |
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|
298 |
|
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xbm[nroffiles].number = value; |
299 |
|
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nroffiles++; |
300 |
|
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if (value >= nrofpixmaps) |
301 |
|
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nrofpixmaps = value + 1; |
302 |
elmex |
1.1 |
} |
303 |
root |
1.6 |
fclose (fp); |
304 |
elmex |
1.1 |
|
305 |
root |
1.6 |
LOG (llevDebug, "done (got %d/%d/%d)\n", nrofpixmaps, nrofbmaps, nroffiles); |
306 |
elmex |
1.1 |
|
307 |
root |
1.6 |
new_faces = new New_Face[nrofpixmaps]; |
308 |
|
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|
309 |
|
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for (i = 0; i < nrofpixmaps; i++) |
310 |
|
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{ |
311 |
|
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new_faces[i].name = ""; |
312 |
|
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new_faces[i].number = i; |
313 |
|
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new_faces[i].visibility = 0; |
314 |
|
|
new_faces[i].magicmap = 255; |
315 |
elmex |
1.1 |
} |
316 |
root |
1.6 |
for (i = 0; i < nroffiles; i++) |
317 |
|
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{ |
318 |
|
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new_faces[xbm[i].number].name = xbm[i].name; |
319 |
elmex |
1.1 |
} |
320 |
|
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|
321 |
root |
1.6 |
// non-pod datatype, likely not allowed |
322 |
|
|
qsort (xbm, nroffiles, sizeof (struct bmappair), (int (*)(const void *, const void *)) compar); |
323 |
elmex |
1.1 |
|
324 |
root |
1.6 |
ReadFaceData (); |
325 |
elmex |
1.1 |
|
326 |
root |
1.6 |
for (i = 0; i < nrofpixmaps; i++) |
327 |
|
|
{ |
328 |
|
|
if (new_faces[i].magicmap == 255) |
329 |
|
|
{ |
330 |
|
|
#if 0 /* Useful for initial debugging, not needed now */ |
331 |
|
|
LOG (llevDebug, "Face %s still had default magicmap, resetting to black\n", new_faces[i].name); |
332 |
elmex |
1.1 |
#endif |
333 |
root |
1.6 |
new_faces[i].magicmap = 0; |
334 |
root |
1.2 |
} |
335 |
elmex |
1.1 |
} |
336 |
root |
1.6 |
/* Actually forcefully setting the colors here probably should not |
337 |
|
|
* be done - it could easily create confusion. |
338 |
|
|
*/ |
339 |
|
|
blank_face = &new_faces[FindFace (BLANK_FACE_NAME, 0)]; |
340 |
|
|
blank_face->magicmap = find_color ("khaki") | FACE_FLOOR; |
341 |
|
|
|
342 |
|
|
empty_face = &new_faces[FindFace (EMPTY_FACE_NAME, 0)]; |
343 |
|
|
|
344 |
|
|
dark_faces[0] = &new_faces[FindFace (DARK_FACE1_NAME, 0)]; |
345 |
|
|
dark_faces[1] = &new_faces[FindFace (DARK_FACE2_NAME, 0)]; |
346 |
|
|
dark_faces[2] = &new_faces[FindFace (DARK_FACE3_NAME, 0)]; |
347 |
elmex |
1.1 |
|
348 |
root |
1.6 |
smooth_face = &new_faces[FindFace (SMOOTH_FACE_NAME, 0)]; |
349 |
elmex |
1.1 |
} |
350 |
|
|
|
351 |
|
|
/* This returns an the face number of face 'name'. Number is constant |
352 |
|
|
* during an invocation, but not necessarily between versions (this |
353 |
|
|
* is because the faces are arranged in alphabetical order, so |
354 |
|
|
* if a face is removed or added, all faces after that will now |
355 |
|
|
* have a different number. |
356 |
|
|
* |
357 |
|
|
* the parameter error determines behaviour. If a face is |
358 |
|
|
* not found, then error is returned. This can be useful if |
359 |
|
|
* you want some default face used, or can be set to negative |
360 |
|
|
* so that it will be known that the face could not be found |
361 |
|
|
* (needed in client, so that it will know to request that image |
362 |
|
|
* from the server) |
363 |
|
|
*/ |
364 |
root |
1.6 |
int |
365 |
|
|
FindFace (const char *name, int error) |
366 |
|
|
{ |
367 |
|
|
struct bmappair *bp, tmp; |
368 |
|
|
char *p; |
369 |
elmex |
1.1 |
|
370 |
root |
1.6 |
if (!name) |
371 |
|
|
return error; |
372 |
root |
1.5 |
|
373 |
root |
1.6 |
if ((p = strchr (name, '\n'))) |
374 |
|
|
*p = '\0'; |
375 |
elmex |
1.1 |
|
376 |
root |
1.6 |
tmp.name = (char *) name; |
377 |
|
|
bp = (struct bmappair *) bsearch (&tmp, xbm, nroffiles, sizeof (struct bmappair), (int (*)(const void *, const void *)) compar); |
378 |
elmex |
1.1 |
|
379 |
root |
1.6 |
return bp ? bp->number : error; |
380 |
elmex |
1.1 |
} |
381 |
|
|
|
382 |
|
|
/* Reads the smooth file to know how to smooth datas. |
383 |
|
|
* the smooth file if made of 2 elements lines. |
384 |
|
|
* lines starting with # are comment |
385 |
|
|
* the first element of line is face to smooth |
386 |
|
|
* the next element is the 16x2 faces picture |
387 |
|
|
* used for smoothing |
388 |
|
|
*/ |
389 |
root |
1.6 |
int |
390 |
|
|
ReadSmooth (void) |
391 |
|
|
{ |
392 |
|
|
char buf[MAX_BUF], *p, *q; |
393 |
|
|
FILE *fp; |
394 |
|
|
int smoothcount = 0; |
395 |
|
|
|
396 |
|
|
bmaps_checksum = 0; |
397 |
|
|
sprintf (buf, "%s/smooth", settings.datadir); |
398 |
|
|
LOG (llevDebug, "Reading smooth from %s...", buf); |
399 |
|
|
if ((fp = fopen (buf, "r")) == NULL) |
400 |
|
|
{ |
401 |
|
|
LOG (llevError, "Cannot open smooth file %s: %s\n", strerror (errno)); |
402 |
|
|
exit (-1); |
403 |
elmex |
1.1 |
} |
404 |
|
|
|
405 |
root |
1.6 |
/* First count how many smooth we have, so we can allocate correctly */ |
406 |
|
|
while (fgets (buf, MAX_BUF, fp) != NULL) |
407 |
|
|
if (buf[0] != '#' && buf[0] != '\n') |
408 |
|
|
smoothcount++; |
409 |
|
|
rewind (fp); |
410 |
|
|
|
411 |
|
|
smooth = new smoothing[smoothcount]; |
412 |
|
|
|
413 |
|
|
while (nrofsmooth < smoothcount && fgets (buf, MAX_BUF, fp) != NULL) |
414 |
|
|
{ |
415 |
|
|
if (*buf == '#') |
416 |
|
|
continue; |
417 |
|
|
p = strchr (buf, ' '); |
418 |
|
|
if (!p) |
419 |
|
|
continue; |
420 |
|
|
*p = '\0'; |
421 |
|
|
q = buf; |
422 |
|
|
smooth[nrofsmooth].id = FindFace (q, 0); |
423 |
|
|
q = p + 1; |
424 |
|
|
smooth[nrofsmooth].smooth = FindFace (q, 0); |
425 |
|
|
nrofsmooth++; |
426 |
elmex |
1.1 |
} |
427 |
root |
1.6 |
fclose (fp); |
428 |
elmex |
1.1 |
|
429 |
root |
1.6 |
LOG (llevDebug, "done (got %d smooth entries)\n", nrofsmooth); |
430 |
|
|
qsort (smooth, nrofsmooth, sizeof (struct smoothing), (int (*)(const void *, const void *)) compar_smooth); |
431 |
|
|
return nrofsmooth; |
432 |
elmex |
1.1 |
} |
433 |
|
|
|
434 |
|
|
/** |
435 |
|
|
* Find the smooth face for a given face. |
436 |
|
|
* |
437 |
|
|
* @param face the face to find the smoothing face for |
438 |
|
|
* |
439 |
|
|
* @param smoothed return value: set to smooth face |
440 |
|
|
* |
441 |
|
|
* @return 1=smooth face found, 0=no smooth face found |
442 |
|
|
*/ |
443 |
root |
1.6 |
int |
444 |
|
|
FindSmooth (uint16 face, uint16 * smoothed) |
445 |
|
|
{ |
446 |
|
|
struct smoothing *bp, tmp; |
447 |
elmex |
1.1 |
|
448 |
root |
1.6 |
tmp.id = face; |
449 |
|
|
bp = (struct smoothing *) bsearch |
450 |
|
|
(&tmp, smooth, nrofsmooth, sizeof (struct smoothing), (int (*)(const void *, const void *)) compar_smooth); |
451 |
|
|
(*smoothed) = 0; |
452 |
|
|
if (bp) |
453 |
|
|
(*smoothed) = bp->smooth; |
454 |
|
|
return bp ? 1 : 0; |
455 |
elmex |
1.1 |
} |
456 |
|
|
|
457 |
|
|
/** |
458 |
|
|
* Deallocates memory allocated by ReadBmapNames() and ReadSmooth(). |
459 |
|
|
*/ |
460 |
root |
1.6 |
void |
461 |
|
|
free_all_images (void) |
462 |
elmex |
1.1 |
{ |
463 |
root |
1.6 |
int i; |
464 |
elmex |
1.1 |
|
465 |
root |
1.6 |
for (i = 0; i < nroffiles; i++) |
466 |
|
|
free (xbm[i].name); |
467 |
root |
1.4 |
|
468 |
root |
1.6 |
delete[]xbm; |
469 |
|
|
delete[]new_faces; |
470 |
|
|
delete[]smooth; |
471 |
elmex |
1.1 |
} |