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, set_val(), test_for_int(),
9 * err_line(), parse_file(),token_from_line()
11 #include "../common/rexit.h" /* exit_err(), exit_trouble() */
12 #include "../common/try_malloc.h" /* try_malloc() */
13 #include "cleanup.h" /* set_cleanup_flag(), CLEANUP_MAP_OBJ_DEFS,
14 * CLEANUP_MAP_OBJ_ACTS
16 #include "map_object_actions.h" /* struct MapObjAct */
17 #include "map_objects.h" /* struct MapObj, struct MapObjDef */
18 #include "world.h" /* world global */
22 /* Flags defining state of object and action entry reading ((un-)finished /
23 * ready for starting the reading of a new definition etc.)
31 LIFEPOINTS_SET = 0x10,
32 CONSUMABLE_SET = 0x20,
33 READY_ACT = NAME_SET | EFFORT_SET,
34 READY_OBJ = NAME_SET | CORPSE_ID_SET | SYMBOL_SET | LIFEPOINTS_SET
40 /* What MapObjDef and MapObjAct structs have in common at their top. Use this to
41 * allow same functions run over structs of both types.
46 struct EntryHead * next;
51 /* Interpret "token0" and "token1" as data to write into the MapObjAct /
54 * Individual MapObjDef / MapObjAct DB entries are put together line by line
55 * before being written. Writing only happens after all necessary members of an
56 * entry have been assembled, and when additionally a) a new entry is started by
57 * a "token0" of "ACTION" or "OBJECT"; or b) "token0" is NULL.
59 * Also check against the line parse_file() read tokens from having more tokens.
61 static void tokens_into_entries(char * token0, char * token1);
63 /* Start reading a new DB entry of "size" from tokens if "token0" matches
64 * "comparand". Set EDIT_STARTED in "flags" to mark beginning of new entry
65 * reading. Check that "token1" id of new entry has not already been used in DB
66 * starting at "entry_cmp".
68 static uint8_t new_entry(char * token0, char * token1, char * comparand,
69 uint8_t * flags, size_t size,
70 struct EntryHead ** entry,
71 struct EntryHead * entry_cmp);
73 /* Write DB entry pointed to by "entry" to its appropriate location. */
74 static void write_if_entry(struct EntryHead ** entry,
75 struct EntryHead *** entry_p_p_p);
77 /* Ensure that all .corpse_id members in the MapObjDef DB fit .id members of
78 * MapObjDef DB entries.
80 static void test_corpse_ids();
82 /* Try to read tokens as members for the entry currently edited, which must be
83 * either "mod" or "moa". What member of which of the two is set depends on
84 * which of "object_flags" and "action_flags" has EDIT_STARTED set and on the
85 * key name in "token0". Return 1 if interpretation succeeds, else 0.
87 * Note that MapObjAct entries' .name also determines their .func.
89 static uint8_t set_members(char * token0, char * token1, uint8_t * object_flags,
90 uint8_t * action_flags, struct MapObjDef * mod,
91 struct MapObjAct * moa);
93 /* If "name" fits "moa"->name, set "moa"->func to "func". (Derives MapObjAct
94 * .func from .name for set_members().
96 static uint8_t try_func_name(struct MapObjAct * moa,
97 char * name, void (* func) (struct MapObj *));
101 static void tokens_into_entries(char * token0, char * token1)
103 char * str_act = "ACTION";
104 char * str_obj = "OBJECT";
105 static struct MapObjAct ** moa_p_p = &world.map_obj_acts;
106 static struct MapObjDef ** mod_p_p = &world.map_obj_defs;
107 static uint8_t action_flags = READY_ACT;
108 static uint8_t object_flags = READY_OBJ;
109 static struct EntryHead * moa = NULL;
110 static struct EntryHead * mod = NULL;
111 if (!token0 || !strcmp(token0,str_act) || !strcmp(token0,str_obj))
113 err_line( ((action_flags & READY_ACT) ^ READY_ACT)
114 || ((object_flags & READY_OBJ) ^ READY_OBJ),
115 "Last definitino block not finished yet.");
116 write_if_entry(&moa, (struct EntryHead ***) &moa_p_p);
117 write_if_entry(&mod, (struct EntryHead ***) &mod_p_p);
118 action_flags = READY_ACT;
119 object_flags = READY_OBJ;
121 err_line(token0 && NULL != token_from_line(NULL), "Too many values.");
123 && !( new_entry(token0, token1, str_act, &action_flags,
124 sizeof(struct MapObjAct), (struct EntryHead**) &moa,
125 (struct EntryHead *) world.map_obj_acts)
126 || new_entry(token0, token1, str_obj, &object_flags,
127 sizeof(struct MapObjDef), (struct EntryHead**) &mod,
128 (struct EntryHead *) world.map_obj_defs)
129 || set_members(token0, token1, &object_flags, &action_flags,
130 (struct MapObjDef *) mod, (struct MapObjAct *) moa)))
132 err_line(1, "Unknown argument.");
138 static uint8_t new_entry(char * token0, char * token1, char * comparand,
139 uint8_t * flags, size_t size,
140 struct EntryHead ** entry,struct EntryHead * entry_cmp)
142 char * f_name = "new_entry()";
143 if (!strcmp(token0, comparand))
145 char * err_uniq = "Declaration of ID already used.";
146 * flags = EDIT_STARTED;
147 * entry = try_malloc(size, f_name);
148 test_for_int(token1, '8');
149 (*entry)-> id = atoi(token1);
150 for (; NULL != entry_cmp; entry_cmp = entry_cmp->next)
152 err_line((*entry)->id == entry_cmp->id, err_uniq);
161 static void write_if_entry(struct EntryHead ** entry,
162 struct EntryHead *** entry_p_p_p)
166 (*entry)->next = NULL;
167 **entry_p_p_p = *entry;
168 *entry_p_p_p = &((*entry)->next);
169 *entry = NULL; /* So later runs of this don't re-append same entry. */
175 static void test_corpse_ids()
177 char * f_name = "test_corpse_ids()";
178 char * prefix = "In the object definitions DB, one object corpse ID does "
179 "not reference any known object in the DB. ID of "
180 "responsible object: ";
181 size_t size = strlen(prefix) + 3 + 1; /* 3: uint8_t representation strlen */
182 char * err_corpse = try_malloc(size, f_name);
183 struct MapObjDef * test_entry_0 = world.map_obj_defs;
184 for (; test_entry_0; test_entry_0 = test_entry_0->next)
186 uint8_t corpse_id_found = 0;
187 struct MapObjDef * test_entry_1 = world.map_obj_defs;
188 for (; test_entry_1; test_entry_1 = test_entry_1->next)
190 if (test_entry_0->corpse_id == test_entry_1->id)
195 int test = snprintf(err_corpse, size, "%s%d", prefix, test_entry_0->id);
196 exit_trouble(test < 0, f_name, "snprintf()");
197 exit_err(!corpse_id_found, err_corpse);
204 static uint8_t set_members(char * token0, char * token1, uint8_t * object_flags,
205 uint8_t * action_flags, struct MapObjDef * mod,
206 struct MapObjAct * moa)
208 if ( *action_flags & EDIT_STARTED
209 && set_val(token0, token1, "NAME", action_flags,
210 NAME_SET, 's', (char *) &moa->name))
212 if (!( try_func_name(moa, "move", actor_move)
213 || try_func_name(moa, "pick_up", actor_pick)
214 || try_func_name(moa, "drop", actor_drop)
215 || try_func_name(moa, "use", actor_use)))
217 moa->func = actor_wait;
219 *action_flags = *action_flags | NAME_SET;
222 else if ( set_val(token0, token1, "NAME", object_flags,
223 NAME_SET, 's', (char *) &mod->name)
224 || set_val(token0, token1, "SYMBOL", object_flags,
225 SYMBOL_SET, 'c', (char *) &mod->char_on_map)
226 || set_val(token0, token1, "EFFORT", action_flags,
227 EFFORT_SET, '8', (char *) &moa->effort)
228 || set_val(token0, token1, "LIFEPOINTS", object_flags,
229 LIFEPOINTS_SET, '8', (char *) &mod->lifepoints)
230 || set_val(token0, token1, "CONSUMABLE", object_flags,
231 CONSUMABLE_SET, '8', (char *) &mod->consumable)
232 || set_val(token0, token1, "CORPSE_ID", object_flags,
233 CORPSE_ID_SET, '8', (char *) &mod->corpse_id))
242 static uint8_t try_func_name(struct MapObjAct * moa, char * name,
243 void (* func) (struct MapObj *))
245 if (0 == strcmp(moa->name, name))
255 extern void read_config_file()
257 parse_file(world.path_config, tokens_into_entries);
258 set_cleanup_flag(CLEANUP_MAP_OBJECT_ACTS | CLEANUP_MAP_OBJECT_DEFS);