private float DoCalculateDamage(Creature attacker, Creature defender, WorldObject damageSource)
{
var playerAttacker = attacker as Player;
var playerDefender = defender as Player;
Attacker = attacker;
Defender = defender;
CombatType = attacker.GetCombatType();
DamageSource = damageSource;
Weapon = attacker.GetEquippedWeapon();
AttackType = attacker.GetAttackType(Weapon, CombatManeuver);
AttackHeight = attacker.AttackHeight ?? AttackHeight.Medium;
// check lifestone protection
if (playerDefender != null && playerDefender.UnderLifestoneProtection)
{
LifestoneProtection = true;
playerDefender.HandleLifestoneProtection();
return(0.0f);
}
if (defender.Invincible ?? false)
{
return(0.0f);
}
// evasion chance
EvasionChance = GetEvadeChance(attacker, defender);
if (EvasionChance > ThreadSafeRandom.Next(0.0f, 1.0f))
{
Evaded = true;
return(0.0f);
}
// get base damage
if (playerAttacker != null)
{
GetBaseDamage(playerAttacker, CombatManeuver);
}
else
{
GetBaseDamage(attacker, CombatManeuver);
}
if (GeneralFailure)
{
return(0.0f);
}
// get damage modifiers
PowerMod = attacker.GetPowerMod(Weapon);
AttributeMod = attacker.GetAttributeMod(Weapon);
SlayerMod = WorldObject.GetWeaponCreatureSlayerModifier(attacker, defender);
// additive?
ElementalDamageBonus = WorldObject.GetMissileElementalDamageModifier(attacker, defender, DamageType);
// ratings
DamageRatingBaseMod = Creature.GetPositiveRating(attacker.GetProperty(PropertyInt.DamageRating) ?? 0);
RecklessnessMod = Creature.GetRecklessnessMod(attacker, defender);
SneakAttackMod = attacker.GetSneakAttackMod(defender);
HeritageMod = attacker.GetHeritageBonus(Weapon) ? 1.05f : 1.0f;
DamageRatingMod = Creature.AdditiveCombine(DamageRatingBaseMod, RecklessnessMod, SneakAttackMod, HeritageMod, Creature.GetRatingMod(attacker.EnchantmentManager.GetDamageRating()));
// damage before mitigation
DamageBeforeMitigation = BaseDamage * AttributeMod * PowerMod * SlayerMod * DamageRatingMod + ElementalDamageBonus; // additives on the end?
// critical hit?
var attackSkill = attacker.GetCreatureSkill(attacker.GetCurrentWeaponSkill());
CriticalChance = WorldObject.GetWeaponCritChanceModifier(attacker, attackSkill);
if (CriticalChance > ThreadSafeRandom.Next(0.0f, 1.0f))
{
IsCritical = true;
CriticalDamageMod = 1.0f + WorldObject.GetWeaponCritDamageMod(attacker, attackSkill);
// recklessness excluded from crits
RecklessnessMod = 1.0f;
DamageRatingMod = Creature.AdditiveCombine(DamageRatingBaseMod, SneakAttackMod, HeritageMod, Creature.GetRatingMod(attacker.EnchantmentManager.GetDamageRating()));
DamageBeforeMitigation = BaseDamageRange.Max * AttributeMod * PowerMod * SlayerMod * DamageRatingMod * CriticalDamageMod + ElementalDamageBonus;
}
// get armor rending mod here?
var armorRendingMod = 1.0f;
if (Weapon != null && Weapon.HasImbuedEffect(ImbuedEffectType.ArmorRending))
{
armorRendingMod = WorldObject.GetArmorRendingMod(attackSkill);
}
// get body part / armor pieces / armor modifier
if (playerDefender != null)
{
// select random body part @ current attack height
GetBodyPart(AttackHeight);
// get armor pieces
Armor = attacker.GetArmorLayers(BodyPart); // this uses attacker.AttackTarget
// get armor modifiers
ArmorMod = attacker.GetArmorMod(DamageType, Armor, DamageSource, armorRendingMod);
}
else
{
// select random body part @ current attack height
GetBodyPart(AttackHeight, defender);
if (Evaded)
{
return(0.0f);
}
Armor = CreaturePart.GetArmorLayers((CombatBodyPart)BiotaPropertiesBodyPart.Key);
// get target armor
ArmorMod = CreaturePart.GetArmorMod(DamageType, Armor, DamageSource, armorRendingMod);
}
// get resistance modifiers
WeaponResistanceMod = WorldObject.GetWeaponResistanceModifier(attacker, attackSkill, DamageType);
if (playerDefender != null)
{
ResistanceMod = playerDefender.GetResistanceMod(DamageType, DamageSource, WeaponResistanceMod);
}
else
{
// todo: move out of creature part, not part-related?
ResistanceMod = CreaturePart.GetResistanceMod(DamageType, DamageSource, WeaponResistanceMod);
}
// damage resistance rating
DamageResistanceRatingMod = Creature.GetNegativeRatingMod(defender.EnchantmentManager.GetDamageResistRating());
// get shield modifier
ShieldMod = defender.GetShieldMod(attacker, DamageType);
// calculate final output damage
Damage = DamageBeforeMitigation * ArmorMod * ShieldMod * ResistanceMod * DamageResistanceRatingMod;
DamageMitigated = DamageBeforeMitigation - Damage;
HandleLogging(playerAttacker, playerDefender);
return(Damage);
}
