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-rw-r--r--src/map/mob.c79
1 files changed, 78 insertions, 1 deletions
diff --git a/src/map/mob.c b/src/map/mob.c
index 123ae1c7f..f25c9ba8a 100644
--- a/src/map/mob.c
+++ b/src/map/mob.c
@@ -64,6 +64,14 @@ struct mob_db *mob_db(int index) { if (index < 0 || index > MAX_MOB_DB || mob_db
struct mob_chat *mob_chat_db[MAX_MOB_CHAT+1];
struct mob_chat *mob_chat(short id) { if(id<=0 || id>MAX_MOB_CHAT || mob_chat_db[id]==NULL) return (struct mob_chat*)NULL; return mob_chat_db[id]; }
+//Dynamic item drop ratio database for per-item drop ratio modifiers overriding global drop ratios.
+#define MAX_ITEMRATIO_MOBS 10
+struct item_drop_ratio {
+ int drop_ratio;
+ int mob_id[MAX_ITEMRATIO_MOBS];
+};
+static struct item_drop_ratio *item_drop_ratio_db[MAX_ITEMDB];
+
static struct eri *item_drop_ers; //For loot drops delay structures.
static struct eri *item_drop_list_ers;
@@ -3441,6 +3449,27 @@ static unsigned int mob_drop_adjust(int baserate, int rate_adjust, unsigned shor
return (unsigned int)cap_value(rate,rate_min,rate_max);
}
+/**
+ * Check if global item drop rate is overriden for given item
+ * in db/mob_item_ratio.txt
+ * @param nameid ID of the item
+ * @param mob_id ID of the monster
+ * @param rate_adjust pointer to store ratio if found
+ */
+static void item_dropratio_adjust(int nameid, int mob_id, int *rate_adjust)
+{
+ int i;
+ if( item_drop_ratio_db[nameid] ) {
+ if( item_drop_ratio_db[nameid]->mob_id[0] ) { // only for listed mobs
+ ARR_FIND(0, MAX_ITEMRATIO_MOBS, i, item_drop_ratio_db[nameid]->mob_id[i] == mob_id);
+ if(i < MAX_ITEMRATIO_MOBS) // found
+ *rate_adjust = item_drop_ratio_db[nameid]->drop_ratio;
+ }
+ else // for all mobs
+ *rate_adjust = item_drop_ratio_db[nameid]->drop_ratio;
+ }
+}
+
/*==========================================
* processes one mobdb entry
*------------------------------------------*/
@@ -3583,12 +3612,14 @@ static bool mob_parse_dbrow(char** str)
// MVP Drops: MVP1id,MVP1per,MVP2id,MVP2per,MVP3id,MVP3per
for(i = 0; i < 3; i++) {
struct item_data *id;
+ int rate_adjust = battle_config.item_rate_mvp;;
db->mvpitem[i].nameid = atoi(str[32+i*2]);
if (!db->mvpitem[i].nameid) {
db->mvpitem[i].p = 0; //No item....
continue;
}
- db->mvpitem[i].p = mob_drop_adjust(atoi(str[33+i*2]), battle_config.item_rate_mvp, battle_config.item_drop_mvp_min, battle_config.item_drop_mvp_max);
+ item_dropratio_adjust(db->mvpitem[i].nameid, class_, &rate_adjust);
+ db->mvpitem[i].p = mob_drop_adjust(atoi(str[33+i*2]), rate_adjust, battle_config.item_drop_mvp_min, battle_config.item_drop_mvp_max);
//calculate and store Max available drop chance of the MVP item
if (db->mvpitem[i].p) {
@@ -3650,6 +3681,7 @@ static bool mob_parse_dbrow(char** str)
ratemax = battle_config.item_drop_common_max;
break;
}
+ item_dropratio_adjust(id->nameid, class_, &rate_adjust);
db->dropitem[i].p = mob_drop_adjust(rate, rate_adjust, ratemin, ratemax);
//calculate and store Max available drop chance of the item
@@ -4385,10 +4417,39 @@ static bool mob_readdb_race2(char* fields[], int columns, int current)
}
/**
+ * Read mob_item_ratio.txt
+ */
+static bool mob_readdb_itemratio(char* str[], int columns, int current)
+{
+ int nameid, ratio, i;
+ struct item_data *id;
+
+ nameid = atoi(str[0]);
+
+ if( ( id = itemdb_exists(nameid) ) == NULL )
+ {
+ ShowWarning("itemdb_read_itemratio: Invalid item id %d.\n", nameid);
+ return false;
+ }
+
+ ratio = atoi(str[1]);
+
+ if(item_drop_ratio_db[nameid] == NULL)
+ item_drop_ratio_db[nameid] = (struct item_drop_ratio*)aCalloc(1, sizeof(struct item_drop_ratio));
+
+ item_drop_ratio_db[nameid]->drop_ratio = ratio;
+ for(i = 0; i < columns-2; i++)
+ item_drop_ratio_db[nameid]->mob_id[i] = atoi(str[i+2]);
+
+ return true;
+}
+
+/**
* read all mob-related databases
*/
static void mob_load(void)
{
+ sv_readdb(db_path, "mob_item_ratio.txt", ',', 2, 2+MAX_ITEMRATIO_MOBS, -1, &mob_readdb_itemratio); // must be read before mobdb
if (db_use_sqldbs)
{
mob_read_sqldb();
@@ -4417,6 +4478,14 @@ void mob_reload(void)
mob_db_data[i]->maxskill=0;
}
+ // Clear item_drop_ratio_db
+ for (i = 0; i < MAX_ITEMDB; i++) {
+ if (item_drop_ratio_db[i]) {
+ aFree(item_drop_ratio_db[i]);
+ item_drop_ratio_db[i] = NULL;
+ }
+ }
+
mob_load();
}
@@ -4481,6 +4550,14 @@ int do_final_mob(void)
mob_chat_db[i] = NULL;
}
}
+ for (i = 0; i <= MAX_ITEMDB; i++)
+ {
+ if (item_drop_ratio_db[i] != NULL)
+ {
+ aFree(item_drop_ratio_db[i]);
+ item_drop_ratio_db[i] = NULL;
+ }
+ }
ers_destroy(item_drop_ers);
ers_destroy(item_drop_list_ers);
return 0;