1 /* src/server/configfile.c */
3 #include <stddef.h> /* size_t, NULL */
4 #include <stdio.h> /* snprintf() */
5 #include <stdint.h> /* uint8_t */
6 #include <stdlib.h> /* atoi(), free() */
7 #include <string.h> /* strcmp() */
8 #include "../common/parse_file.h" /* EDIT_STARTED, parsetest_int(),parse_file(),
9 * parsetest_too_many_values(),parse_id_uniq()
10 * parse_unknown_arg(), parse_init_entry(),
11 * parse_and_reduce_to_readyflag(),parse_val()
13 #include "../common/rexit.h" /* exit_err(), exit_trouble() */
14 #include "../common/try_malloc.h" /* try_malloc() */
15 #include "cleanup.h" /* set_cleanup_flag(), CLEANUP_MAP_OBJ_DEFS,
16 * CLEANUP_MAP_OBJ_ACTS
18 #include "map_object_actions.h" /* MapObjAct */
19 #include "map_objects.h" /* MapObj, MapObjDef, struct MapObjDef */
20 #include "world.h" /* world global */
24 /* Flags defining state of object and action entry reading ((un-)finished /
25 * ready for starting the reading of a new definition etc.)
35 LIFEPOINTS_SET = 0x10,
36 CONSUMABLE_SET = 0x20,
38 READY_ACT = NAME_SET | EFFORT_SET,
39 READY_OBJ = NAME_SET | CORPSE_ID_SET | SYMBOL_SET | LIFEPOINTS_SET
40 | CONSUMABLE_SET | START_N_SET,
41 READY_MAP = HEIGHT_SET | WIDTH_SET
46 /* What MapObjDef and MapObjAct structs have in common at their top. Use this to
47 * allow same functions run over structs of both types.
52 struct EntryHead * next;
57 /* Interpret "token0" and "token1" as data to write into the MapObjAct /
60 * Individual MapObjDef / MapObjAct DB entries are put together line by line
61 * before being written. Writing only happens after all necessary members of an
62 * entry have been assembled, and when additionally a) a new entry is started by
63 * a "token0" of "ACTION" or "OBJECT"; or b) "token0" is NULL.
65 * Also check against the line parse_file() read tokens from having more tokens.
67 static void tokens_into_entries(char * token0, char * token1);
69 /* Start reading a new DB entry of "size" from tokens if "token0" matches
70 * "comparand". Set EDIT_STARTED in "flags" to mark beginning of new entry
71 * reading. Check that "token1" id of new entry has not already been used in DB
72 * starting at "entry_cmp".
74 static uint8_t start_entry(char * token0, char * token1, char * comparand,
75 uint8_t * flags, size_t size,
76 struct EntryHead ** entry,
77 struct EntryHead * entry_cmp);
79 /* Start reading map definition if "token0" matches "comparand". Set "map_flags"
80 * to EDIT_STARTED to mark beginning of map definition reading.
82 static uint8_t start_map(char * token0, char * comparand, uint8_t * map_flags);
84 /* Write DB entry pointed to by "entry" to its appropriate location. */
85 static void write_if_entry(struct EntryHead ** entry,
86 struct EntryHead *** entry_p_p_p);
88 /* Ensure that all .corpse_id members in the MapObjDef DB fit .id members of
89 * MapObjDef DB entries.
91 static void test_corpse_ids();
93 /* set_members() helper specifically for editing world.map members. */
94 static uint8_t set_map_members(char * token0,char * token1,uint8_t * map_flags);
96 /* If "token0" matches "comparand", set world.enemy_fov to "token1". */
97 static uint8_t set_enemy_fov(char * token0, char * comparand, char * token1);
99 /* If "token0" matches "comparand", set world.player_type to int in "token1". */
100 static uint8_t set_player_type(char * token0, char * comparand, char * token1);
102 /* Try to read tokens as members for the definition currently edited, which may
103 * be "mod" or "moa" or that of world.map. What member of which of the three is
104 * set depends on which of the flags has EDIT_STARTED set and on the key name in
105 * "token0". Return 1 if interpretation succeeds, else 0.
107 * Note that MapObjAct entries' .name also determines their .func.
109 static uint8_t set_members(char * token0, char * token1, uint8_t * object_flags,
110 uint8_t * action_flags, uint8_t * map_flags,
111 struct MapObjDef * mod, struct MapObjAct * moa);
113 /* If "name" fits "moa"->name, set "moa"->func to "func". (Derives MapObjAct
114 * .func from .name for set_members().
116 static uint8_t try_func_name(struct MapObjAct * moa,
117 char * name, void (* func) (struct MapObj *));
121 static void tokens_into_entries(char * token0, char * token1)
123 char * str_act = "ACTION";
124 char * str_obj = "OBJECT";
125 char * str_map = "MAP_TYPE";
126 char * str_player = "PLAYER_TYPE";
127 char * str_enemyfov = "ENEMY_FOV";
128 static struct MapObjAct ** moa_p_p = &world.map_obj_acts;
129 static struct MapObjDef ** mod_p_p = &world.map_obj_defs;
130 static uint8_t action_flags = READY_ACT;
131 static uint8_t object_flags = READY_OBJ;
132 static uint8_t map_flags = READY_MAP;
133 static struct EntryHead * moa = NULL;
134 static struct EntryHead * mod = NULL;
135 if (!token0 || !strcmp(token0, str_act) || !strcmp(token0, str_obj)
136 || !strcmp(token0, str_map) || !strcmp(token0, str_player)
137 || !strcmp(token0, str_enemyfov))
139 parse_and_reduce_to_readyflag(&action_flags, READY_ACT);
140 parse_and_reduce_to_readyflag(&object_flags, READY_OBJ);
141 parse_and_reduce_to_readyflag(&map_flags, READY_MAP);
142 write_if_entry(&moa, (struct EntryHead ***) &moa_p_p);
143 write_if_entry(&mod, (struct EntryHead ***) &mod_p_p);
147 parsetest_too_many_values();
148 if (start_entry(token0, token1, str_act, &action_flags,
149 sizeof(struct MapObjAct), (struct EntryHead**) &moa,
150 (struct EntryHead *) world.map_obj_acts))
152 err_line(0 == atoi(token1), "Value must not be 0.");
154 else if (!( start_entry(token0, token1, str_obj, &object_flags,
155 sizeof(struct MapObjDef),
156 (struct EntryHead**) &mod,
157 (struct EntryHead *) world.map_obj_defs)
158 || start_map(token0, str_map, &map_flags)
159 || set_player_type(token0, str_player, token1)
160 || set_enemy_fov(token0, str_enemyfov, token1)
161 || set_members(token0, token1, &object_flags, &action_flags,
162 &map_flags, (struct MapObjDef *)mod,
163 (struct MapObjAct *) moa)))
172 static uint8_t start_entry(char * token0, char * token1, char * comparand,
173 uint8_t * flags, size_t size,
174 struct EntryHead ** entry,
175 struct EntryHead * entry_cmp)
177 if (strcmp(token0, comparand))
181 *entry = (struct EntryHead *) parse_init_entry(flags, size);
182 parsetest_int(token1, '8');
183 (*entry)-> id = atoi(token1);
184 for (; NULL != entry_cmp; entry_cmp = entry_cmp->next)
186 parse_id_uniq((*entry)->id == entry_cmp->id);
193 static uint8_t start_map(char * token0, char * comparand, uint8_t * map_flags)
195 if (strcmp(token0, comparand))
199 *map_flags = EDIT_STARTED;
205 static void write_if_entry(struct EntryHead ** entry,
206 struct EntryHead *** entry_p_p_p)
210 (*entry)->next = NULL;
211 **entry_p_p_p = *entry;
212 *entry_p_p_p = &((*entry)->next);
213 *entry = NULL; /* So later runs of this don't re-append same entry. */
219 static void test_corpse_ids()
221 char * f_name = "test_corpse_ids()";
222 char * prefix = "In the object definitions DB, one object corpse ID does "
223 "not reference any known object in the DB. ID of "
224 "responsible object: ";
225 size_t size = strlen(prefix) + 3 + 1; /* 3: uint8_t representation strlen */
226 char * err_corpse = try_malloc(size, f_name);
227 struct MapObjDef * test_entry_0 = world.map_obj_defs;
228 for (; test_entry_0; test_entry_0 = test_entry_0->next)
230 uint8_t corpse_id_found = 0;
231 struct MapObjDef * test_entry_1 = world.map_obj_defs;
232 for (; test_entry_1; test_entry_1 = test_entry_1->next)
234 if (test_entry_0->corpse_id == test_entry_1->id)
239 int test = snprintf(err_corpse, size, "%s%d", prefix, test_entry_0->id);
240 exit_trouble(test < 0, f_name, "snprintf()");
241 exit_err(!corpse_id_found, err_corpse);
248 static uint8_t set_map_members(char * token0, char * token1,uint8_t * map_flags)
250 if ( parse_val(token0, token1, "HEIGHT", map_flags,
251 HEIGHT_SET, 'i', (char *) &world.map.size.y)
252 || parse_val(token0, token1, "WIDTH", map_flags,
253 WIDTH_SET, 'i', (char *) &world.map.size.x))
255 int test = atoi(token1) > 256 || atoi(token1) < 1;
256 err_line(test, "Value must be >= 1 and <= 256.");
264 static uint8_t set_enemy_fov(char * token0, char * comparand, char * token1)
266 if (strcmp(token0, comparand))
270 parsetest_int(token1, '8');
271 int test = atoi(token1) > 1;
272 err_line(test, "Value must be 0 or 1.");
273 world.enemy_fov = atoi(token1);
279 static uint8_t set_player_type(char * token0, char * comparand, char * token1)
281 if (strcmp(token0, comparand))
285 parsetest_int(token1, '8');
286 world.player_type = atoi(token1);
292 static uint8_t set_members(char * token0, char * token1, uint8_t * object_flags,
293 uint8_t * action_flags, uint8_t * map_flags,
294 struct MapObjDef * mod, struct MapObjAct * moa)
296 if ( *action_flags & EDIT_STARTED
297 && parse_val(token0, token1, "NAME", action_flags,
298 NAME_SET, 's', (char *) &moa->name))
300 if (!( try_func_name(moa, "move", actor_move)
301 || try_func_name(moa, "pick_up", actor_pick)
302 || try_func_name(moa, "drop", actor_drop)
303 || try_func_name(moa, "use", actor_use)))
305 moa->func = actor_wait;
307 *action_flags = *action_flags | NAME_SET;
310 else if ( set_map_members(token0, token1, map_flags)
311 || parse_val(token0, token1, "NAME", object_flags,
312 NAME_SET, 's', (char *) &mod->name)
313 || parse_val(token0, token1, "SYMBOL", object_flags,
314 SYMBOL_SET, 'c', (char *) &mod->char_on_map)
315 || parse_val(token0, token1, "EFFORT", action_flags,
316 EFFORT_SET, '8', (char *) &moa->effort)
317 || parse_val(token0, token1, "START_NUMBER", object_flags,
318 START_N_SET, '8', (char *) &mod->start_n)
319 || parse_val(token0, token1, "LIFEPOINTS", object_flags,
320 LIFEPOINTS_SET, '8', (char *) &mod->lifepoints)
321 || parse_val(token0, token1, "CONSUMABLE", object_flags,
322 CONSUMABLE_SET, '8', (char *) &mod->consumable)
323 || parse_val(token0, token1, "CORPSE_ID", object_flags,
324 CORPSE_ID_SET, '8', (char *) &mod->corpse_id))
333 static uint8_t try_func_name(struct MapObjAct * moa, char * name,
334 void (* func) (struct MapObj *))
336 if (0 == strcmp(moa->name, name))
346 extern void read_config_file()
348 parse_file(world.path_config, tokens_into_entries);
349 exit_err(!world.map.size.y, "Map not defined in config file.");
350 uint8_t player_type_is_valid = 0;
351 struct MapObjDef * mod;
352 for (mod = world.map_obj_defs; NULL != mod; mod = mod->next)
354 if (world.player_type == mod->id)
356 player_type_is_valid = 1;
360 exit_err(!player_type_is_valid, "No valid map object type set for player.");
361 set_cleanup_flag(CLEANUP_MAP_OBJECT_ACTS | CLEANUP_MAP_OBJECT_DEFS);