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.player_type to int in "token1". */
97 static uint8_t set_player_type(char * token0, char * comparand, char * token1);
99 /* Try to read tokens as members for the definition currently edited, which may
100 * be "mod" or "moa" or that of world.map. What member of which of the three is
101 * set depends on which of the flags has EDIT_STARTED set and on the key name in
102 * "token0". Return 1 if interpretation succeeds, else 0.
104 * Note that MapObjAct entries' .name also determines their .func.
106 static uint8_t set_members(char * token0, char * token1, uint8_t * object_flags,
107 uint8_t * action_flags, uint8_t * map_flags,
108 struct MapObjDef * mod, struct MapObjAct * moa);
110 /* If "name" fits "moa"->name, set "moa"->func to "func". (Derives MapObjAct
111 * .func from .name for set_members().
113 static uint8_t try_func_name(struct MapObjAct * moa,
114 char * name, void (* func) (struct MapObj *));
118 static void tokens_into_entries(char * token0, char * token1)
120 char * str_act = "ACTION";
121 char * str_obj = "OBJECT";
122 char * str_map = "MAP_TYPE";
123 char * str_player = "PLAYER_TYPE";
124 static struct MapObjAct ** moa_p_p = &world.map_obj_acts;
125 static struct MapObjDef ** mod_p_p = &world.map_obj_defs;
126 static uint8_t action_flags = READY_ACT;
127 static uint8_t object_flags = READY_OBJ;
128 static uint8_t map_flags = READY_MAP;
129 static struct EntryHead * moa = NULL;
130 static struct EntryHead * mod = NULL;
131 if (!token0 || !strcmp(token0, str_act) || !strcmp(token0, str_obj)
132 || !strcmp(token0, str_map) || !strcmp(token0, str_player))
134 parse_and_reduce_to_readyflag(&action_flags, READY_ACT);
135 parse_and_reduce_to_readyflag(&object_flags, READY_OBJ);
136 parse_and_reduce_to_readyflag(&map_flags, READY_MAP);
137 write_if_entry(&moa, (struct EntryHead ***) &moa_p_p);
138 write_if_entry(&mod, (struct EntryHead ***) &mod_p_p);
142 parsetest_too_many_values();
143 if (start_entry(token0, token1, str_act, &action_flags,
144 sizeof(struct MapObjAct), (struct EntryHead**) &moa,
145 (struct EntryHead *) world.map_obj_acts))
147 err_line(0 == atoi(token1), "Value must not be 0.");
149 else if (!( start_entry(token0, token1, str_obj, &object_flags,
150 sizeof(struct MapObjDef),
151 (struct EntryHead**) &mod,
152 (struct EntryHead *) world.map_obj_defs)
153 || start_map(token0, str_map, &map_flags)
154 || set_player_type(token0, str_player, token1)
155 || set_members(token0, token1, &object_flags, &action_flags,
156 &map_flags, (struct MapObjDef *)mod,
157 (struct MapObjAct *) moa)))
166 static uint8_t start_entry(char * token0, char * token1, char * comparand,
167 uint8_t * flags, size_t size,
168 struct EntryHead ** entry,
169 struct EntryHead * entry_cmp)
171 if (strcmp(token0, comparand))
175 *entry = (struct EntryHead *) parse_init_entry(flags, size);
176 parsetest_int(token1, '8');
177 (*entry)-> id = atoi(token1);
178 for (; NULL != entry_cmp; entry_cmp = entry_cmp->next)
180 parse_id_uniq((*entry)->id == entry_cmp->id);
187 static uint8_t start_map(char * token0, char * comparand, uint8_t * map_flags)
189 if (strcmp(token0, comparand))
193 *map_flags = EDIT_STARTED;
199 static void write_if_entry(struct EntryHead ** entry,
200 struct EntryHead *** entry_p_p_p)
204 (*entry)->next = NULL;
205 **entry_p_p_p = *entry;
206 *entry_p_p_p = &((*entry)->next);
207 *entry = NULL; /* So later runs of this don't re-append same entry. */
213 static void test_corpse_ids()
215 char * f_name = "test_corpse_ids()";
216 char * prefix = "In the object definitions DB, one object corpse ID does "
217 "not reference any known object in the DB. ID of "
218 "responsible object: ";
219 size_t size = strlen(prefix) + 3 + 1; /* 3: uint8_t representation strlen */
220 char * err_corpse = try_malloc(size, f_name);
221 struct MapObjDef * test_entry_0 = world.map_obj_defs;
222 for (; test_entry_0; test_entry_0 = test_entry_0->next)
224 uint8_t corpse_id_found = 0;
225 struct MapObjDef * test_entry_1 = world.map_obj_defs;
226 for (; test_entry_1; test_entry_1 = test_entry_1->next)
228 if (test_entry_0->corpse_id == test_entry_1->id)
233 int test = snprintf(err_corpse, size, "%s%d", prefix, test_entry_0->id);
234 exit_trouble(test < 0, f_name, "snprintf()");
235 exit_err(!corpse_id_found, err_corpse);
242 static uint8_t set_map_members(char * token0, char * token1,uint8_t * map_flags)
244 if ( parse_val(token0, token1, "HEIGHT", map_flags,
245 HEIGHT_SET, 'i', (char *) &world.map.size.y)
246 || parse_val(token0, token1, "WIDTH", map_flags,
247 WIDTH_SET, 'i', (char *) &world.map.size.x))
249 int test = atoi(token1) > 256 || atoi(token1) < 1;
250 err_line(test, "Value must be >= 1 and <= 256.");
258 static uint8_t set_player_type(char * token0, char * comparand, char * token1)
260 if (strcmp(token0, comparand))
264 parsetest_int(token1, '8');
265 world.player_type = atoi(token1);
271 static uint8_t set_members(char * token0, char * token1, uint8_t * object_flags,
272 uint8_t * action_flags, uint8_t * map_flags,
273 struct MapObjDef * mod, struct MapObjAct * moa)
275 if ( *action_flags & EDIT_STARTED
276 && parse_val(token0, token1, "NAME", action_flags,
277 NAME_SET, 's', (char *) &moa->name))
279 if (!( try_func_name(moa, "move", actor_move)
280 || try_func_name(moa, "pick_up", actor_pick)
281 || try_func_name(moa, "drop", actor_drop)
282 || try_func_name(moa, "use", actor_use)))
284 moa->func = actor_wait;
286 *action_flags = *action_flags | NAME_SET;
289 else if ( set_map_members(token0, token1, map_flags)
290 || parse_val(token0, token1, "NAME", object_flags,
291 NAME_SET, 's', (char *) &mod->name)
292 || parse_val(token0, token1, "SYMBOL", object_flags,
293 SYMBOL_SET, 'c', (char *) &mod->char_on_map)
294 || parse_val(token0, token1, "EFFORT", action_flags,
295 EFFORT_SET, '8', (char *) &moa->effort)
296 || parse_val(token0, token1, "START_NUMBER", object_flags,
297 START_N_SET, '8', (char *) &mod->start_n)
298 || parse_val(token0, token1, "LIFEPOINTS", object_flags,
299 LIFEPOINTS_SET, '8', (char *) &mod->lifepoints)
300 || parse_val(token0, token1, "CONSUMABLE", object_flags,
301 CONSUMABLE_SET, '8', (char *) &mod->consumable)
302 || parse_val(token0, token1, "CORPSE_ID", object_flags,
303 CORPSE_ID_SET, '8', (char *) &mod->corpse_id))
312 static uint8_t try_func_name(struct MapObjAct * moa, char * name,
313 void (* func) (struct MapObj *))
315 if (0 == strcmp(moa->name, name))
325 extern void read_config_file()
327 parse_file(world.path_config, tokens_into_entries);
328 exit_err(!world.map.size.y, "Map not defined in config file.");
329 uint8_t player_type_is_valid = 0;
330 struct MapObjDef * mod;
331 for (mod = world.map_obj_defs; NULL != mod; mod = mod->next)
333 if (world.player_type == mod->id)
335 player_type_is_valid = 1;
339 exit_err(!player_type_is_valid, "No valid map object type set for player.");
340 set_cleanup_flag(CLEANUP_MAP_OBJECT_ACTS | CLEANUP_MAP_OBJECT_DEFS);