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Fixed drop rate bonuses (#3986)

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Fixes #2613

Co-authored-by: aleos <aleos89@users.noreply.github.com>
Co-authored-by: Lemongrass3110 <lemongrass@kstp.at>
Co-authored-by: Atemo <Atemo@users.noreply.github.com>
This commit is contained in:
SeravySensei
2021-08-27 23:00:41 +02:00
committed by GitHub
parent 21cb9e87a2
commit 72aafdadea
8 changed files with 105 additions and 77 deletions
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142
src/map/mob.cpp
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@@ -2471,6 +2471,83 @@ void mob_damage(struct mob_data *md, struct block_list *src, int damage)
#endif
}
/**
* Get modified drop rate
* @param src: Source object
* @param mob: Monster data
* @param base_rate: Base drop rate
* @param drop_modifier: RENEWAL_DROP level modifier
* @return Modified drop rate
*/
int mob_getdroprate(struct block_list *src, std::shared_ptr<s_mob_db> mob, int base_rate, int drop_modifier)
{
int drop_rate = base_rate;
if (battle_config.mob_size_influence) { // Change drops depending on monsters size [Valaris]
if (mob->status.size == SZ_MEDIUM && drop_rate >= 2)
drop_rate /= 2; // SZ_MEDIUM actually is small size modification... this is not a bug!
else if (mob->status.size == SZ_BIG)
drop_rate *= 2;
}
if (src) {
if (battle_config.drops_by_luk) // Drops affected by luk as a fixed increase [Valaris]
drop_rate += status_get_luk(src) * battle_config.drops_by_luk / 100;
if (battle_config.drops_by_luk2) // Drops affected by luk as a % increase [Skotlex]
drop_rate += (int)(0.5 + drop_rate * status_get_luk(src) * battle_config.drops_by_luk2 / 10000.);
if (src->type == BL_PC) { // Player specific drop rate adjustments
struct map_session_data *sd = (struct map_session_data*)src;
int drop_rate_bonus = 100;
// In PK mode players get an additional drop chance bonus of 25% if there is a 20 level difference
if( battle_config.pk_mode && (int)(mob->lv - sd->status.base_level) >= 20 ){
drop_rate_bonus += 25;
}
// Add class and race specific bonuses
drop_rate_bonus += sd->indexed_bonus.dropaddclass[mob->status.class_] + sd->indexed_bonus.dropaddclass[CLASS_ALL];
drop_rate_bonus += sd->indexed_bonus.dropaddrace[mob->status.race] + sd->indexed_bonus.dropaddrace[RC_ALL];
if (sd->sc.data[SC_ITEMBOOST])
drop_rate_bonus += sd->sc.data[SC_ITEMBOOST]->val1;
int cap;
if (pc_isvip(sd)) { // Increase item drop rate for VIP.
// Unsure how the VIP and other bonuses should stack, this is additive.
drop_rate_bonus += battle_config.vip_drop_increase;
cap = battle_config.drop_rate_cap_vip;
} else
cap = battle_config.drop_rate_cap;
drop_rate = (int)( 0.5 + drop_rate * drop_rate_bonus / 100. );
// Now limit the drop rate to never be exceed the cap (default: 90%), unless it is originally above it already.
if( drop_rate > cap && base_rate < cap ){
drop_rate = cap;
}
}
}
#ifdef RENEWAL_DROP
drop_rate = apply_rate( drop_rate, drop_modifier );
#endif
// Cap it to 100%
drop_rate = min( drop_rate, 10000 );
// If the monster's drop rate can become 0
if( battle_config.drop_rate0item ){
drop_rate = max( drop_rate, 0 );
}else{
// If not - cap to 0.01% drop rate - as on official servers
drop_rate = max( drop_rate, 1 );
}
return drop_rate;
}
/*==========================================
* Signals death of mob.
* type&1 -> no drops, type&2 -> no exp
@@ -2732,9 +2809,10 @@ int mob_dead(struct mob_data *md, struct block_list *src, int type)
struct item_drop_list *dlist = ers_alloc(item_drop_list_ers, struct item_drop_list);
struct item_drop *ditem;
struct item_data* it = NULL;
int drop_rate;
int drop_rate, drop_modifier = 100;
#ifdef RENEWAL_DROP
int drop_modifier = pc_level_penalty_mod( mvp_sd != nullptr ? mvp_sd : second_sd != nullptr ? second_sd : third_sd, PENALTY_DROP, nullptr, md );
drop_modifier = pc_level_penalty_mod( mvp_sd != nullptr ? mvp_sd : second_sd != nullptr ? second_sd : third_sd, PENALTY_DROP, nullptr, md );
#endif
dlist->m = md->bl.m;
dlist->x = md->bl.x;
@@ -2749,63 +2827,9 @@ int mob_dead(struct mob_data *md, struct block_list *src, int type)
continue;
if ( !(it = itemdb_exists(md->db->dropitem[i].nameid)) )
continue;
drop_rate = md->db->dropitem[i].rate;
if (drop_rate <= 0) {
if (battle_config.drop_rate0item)
continue;
drop_rate = 1;
}
drop_rate = mob_getdroprate(src, md->db, md->db->dropitem[i].rate, drop_modifier);
// change drops depending on monsters size [Valaris]
if (battle_config.mob_size_influence) {
if (md->special_state.size == SZ_MEDIUM && drop_rate >= 2)
drop_rate /= 2;
else if( md->special_state.size == SZ_BIG)
drop_rate *= 2;
}
if (src) {
//Drops affected by luk as a fixed increase [Valaris]
if (battle_config.drops_by_luk)
drop_rate += status_get_luk(src)*battle_config.drops_by_luk/100;
//Drops affected by luk as a % increase [Skotlex]
if (battle_config.drops_by_luk2)
drop_rate += (int)(0.5+drop_rate*status_get_luk(src)*battle_config.drops_by_luk2/10000.);
}
// Player specific drop rate adjustments
if( sd ){
int drop_rate_bonus = 0;
// pk_mode increase drops if 20 level difference [Valaris]
if( battle_config.pk_mode && (int)(md->level - sd->status.base_level) >= 20 )
drop_rate = (int)(drop_rate*1.25);
// Add class and race specific bonuses
drop_rate_bonus += sd->indexed_bonus.dropaddclass[md->status.class_] + sd->indexed_bonus.dropaddclass[CLASS_ALL];
drop_rate_bonus += sd->indexed_bonus.dropaddrace[md->status.race] + sd->indexed_bonus.dropaddrace[RC_ALL];
// Increase drop rate if user has SC_ITEMBOOST
if (sd->sc.data[SC_ITEMBOOST])
drop_rate_bonus += sd->sc.data[SC_ITEMBOOST]->val1;
drop_rate_bonus = (int)(0.5 + drop_rate * drop_rate_bonus / 100.);
// Now rig the drop rate to never be over 90% unless it is originally >90%.
drop_rate = i32max(drop_rate, cap_value(drop_rate_bonus, 0, 9000));
if (pc_isvip(sd)) { // Increase item drop rate for VIP.
drop_rate += (int)(0.5 + drop_rate * battle_config.vip_drop_increase / 100.);
drop_rate = min(drop_rate,10000); //cap it to 100%
}
}
#ifdef RENEWAL_DROP
if( drop_modifier != 100 ) {
drop_rate = apply_rate(drop_rate, drop_modifier);
if( drop_rate < 1 )
drop_rate = 1;
}
#endif
// attempt to drop the item
if (rnd() % 10000 >= drop_rate)
continue;
@@ -2818,7 +2842,7 @@ int mob_dead(struct mob_data *md, struct block_list *src, int type)
ditem = mob_setdropitem(&md->db->dropitem[i], 1, md->mob_id);
//A Rare Drop Global Announce by Lupus
if( mvp_sd && drop_rate <= battle_config.rare_drop_announce ) {
if( mvp_sd && md->db->dropitem[i].rate <= battle_config.rare_drop_announce ) {
char message[128];
sprintf (message, msg_txt(NULL,541), mvp_sd->status.name, md->name, it->ename.c_str(), (float)drop_rate/100);
//MSG: "'%s' won %s's %s (chance: %0.02f%%)"