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author | Andrei Karas <akaras@inbox.ru> | 2016-08-31 23:50:14 +0300 |
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committer | Andrei Karas <akaras@inbox.ru> | 2016-08-31 23:50:14 +0300 |
commit | a3158d2110a2a846d39a5ddc364adb40c212241d (patch) | |
tree | 4c057530f67be9855e1b8d270992f689bf22d3ed /src/emap/battle.c | |
parent | d8603c474f62f62d3759b03ea317836383ba463c (diff) | |
download | evol-hercules-a3158d2110a2a846d39a5ddc364adb40c212241d.tar.gz evol-hercules-a3158d2110a2a846d39a5ddc364adb40c212241d.tar.bz2 evol-hercules-a3158d2110a2a846d39a5ddc364adb40c212241d.tar.xz evol-hercules-a3158d2110a2a846d39a5ddc364adb40c212241d.zip |
Add into mob_db weapot type attacks modifier.
New group in mob_db: WeaponAttacks
Example:
WeaponAttacks: {
Bows: 5000 // mean bow attack do 50% of normal attack
}
Default value is 10000 mean 100%
Diffstat (limited to 'src/emap/battle.c')
-rw-r--r-- | src/emap/battle.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/emap/battle.c b/src/emap/battle.c index 5b16244..161da3d 100644 --- a/src/emap/battle.c +++ b/src/emap/battle.c @@ -8,12 +8,42 @@ #include <string.h> #include "common/HPMi.h" +#include "common/nullpo.h" +#include "common/utils.h" #include "map/itemdb.h" +#include "map/mob.h" #include "map/pc.h" #include "emap/data/itemd.h" +#include "emap/data/mobd.h" #include "emap/struct/itemdext.h" +#include "emap/struct/mobdext.h" + +// copy from common/utils.c +/** + * Applies a percentual rate modifier. + * + * @param value The base value. + * @param rate The rate modifier to apply. + * @param stdrate The rate modifier's divider (rate == stdrate => 100%). + * @return The modified value. + */ +int64 apply_percentrate64(int64 value, int rate, int stdrate) +{ + Assert_ret(stdrate > 0); + Assert_ret(rate >= 0); + if (rate == stdrate) + return value; + if (rate == 0) + return 0; + if (INT64_MAX / rate < value) + { + // Give up some precision to prevent overflows + return value / stdrate * rate; + } + return value * rate / stdrate; +} bool ebattle_check_arrows_post(bool retVal, struct map_session_data *sd) @@ -52,3 +82,32 @@ bool ebattle_check_arrows_post(bool retVal, } return false; } + +struct Damage ebattle_calc_weapon_attack_post(struct Damage retVal, + struct block_list *src, + struct block_list *target __attribute__ ((unused)), + uint16 skill_id __attribute__ ((unused)), + uint16 skill_lv __attribute__ ((unused)), + int wflag __attribute__ ((unused))) +{ + if (src == NULL) + return retVal; + + struct map_session_data *sd = BL_CAST(BL_PC, src); + if (sd == NULL) + return retVal; + + struct mob_data *md = BL_CAST(BL_MOB, target); + if (md == NULL) + return retVal; + + struct MobdExt *data = mobd_get_by_mob(md); + if (data == NULL) + return retVal; + + const int mod = data->weaponAttacks[sd->weapontype1]; + retVal.damage = apply_percentrate64(retVal.damage, mod, 10000); + retVal.damage2 = apply_percentrate64(retVal.damage2, mod, 10000); + + return retVal; +} |