/// <summary>
/// Calculates the damage for a spell projectile
/// Used by war magic, void magic, and life magic projectiles
/// </summary>
public double?CalculateDamage(WorldObject source, WorldObject caster, Creature target, ref bool criticalHit, ref bool critDefended, ref bool overpower)
{
var sourcePlayer = source as Player;
var targetPlayer = target as Player;
if (source == null || targetPlayer != null && targetPlayer.Invincible == true)
{
return(null);
}
// target already dead?
if (target.Health.Current <= 0)
{
return(-1);
}
// check lifestone protection
if (targetPlayer != null && targetPlayer.UnderLifestoneProtection)
{
if (sourcePlayer != null)
{
sourcePlayer.Session.Network.EnqueueSend(new GameMessageSystemChat($"The Lifestone's magic protects {targetPlayer.Name} from the attack!", ChatMessageType.Magic));
}
targetPlayer.HandleLifestoneProtection();
return(null);
}
double damageBonus = 0.0f, warSkillBonus = 0.0f, finalDamage = 0.0f;
var resistanceType = Creature.GetResistanceType(Spell.DamageType);
var sourceCreature = source as Creature;
if (sourceCreature?.Overpower != null)
{
overpower = Creature.GetOverpower(sourceCreature, target);
}
var resisted = source.TryResistSpell(target, Spell, caster, true);
if (resisted && !overpower)
{
return(null);
}
CreatureSkill attackSkill = null;
if (sourceCreature != null)
{
attackSkill = sourceCreature.GetCreatureSkill(Spell.School);
}
// critical hit
var critical = GetWeaponMagicCritFrequency(sourceCreature, attackSkill, target);
if (ThreadSafeRandom.Next(0.0f, 1.0f) < critical)
{
if (targetPlayer != null && targetPlayer.AugmentationCriticalDefense > 0)
{
var criticalDefenseMod = sourcePlayer != null ? 0.05f : 0.25f;
var criticalDefenseChance = targetPlayer.AugmentationCriticalDefense * criticalDefenseMod;
if (criticalDefenseChance > ThreadSafeRandom.Next(0.0f, 1.0f))
{
critDefended = true;
}
}
if (!critDefended)
{
criticalHit = true;
}
}
var absorbMod = GetAbsorbMod(target);
bool isPVP = sourcePlayer != null && targetPlayer != null;
if (isPVP && Spell.IsHarmful)
{
Player.UpdatePKTimers(sourcePlayer, targetPlayer);
}
var elementalDmgBonus = GetCasterElementalDamageModifier(sourceCreature, target, Spell.DamageType);
// Possible 2x + damage bonus for the slayer property
var slayerBonus = GetWeaponCreatureSlayerModifier(sourceCreature, target);
// life magic projectiles: ie., martyr's hecatomb
if (Spell.School == MagicSchool.LifeMagic)
{
var lifeMagicDamage = LifeProjectileDamage * Spell.DamageRatio;
// could life magic projectiles crit?
// if so, did they use the same 1.5x formula as war magic, instead of 2.0x?
if (criticalHit)
{
damageBonus = lifeMagicDamage * 0.5f * GetWeaponCritDamageMod(sourceCreature, attackSkill, target);
}
var weaponResistanceMod = GetWeaponResistanceModifier(sourceCreature, attackSkill, Spell.DamageType);
// if attacker/weapon has IgnoreMagicResist directly, do not transfer to spell projectile
// only pass if SpellProjectile has it directly, such as 2637 - Invoking Aun Tanua
var resistanceMod = Math.Max(0.0f, target.GetResistanceMod(resistanceType, this, null, weaponResistanceMod));
finalDamage = (lifeMagicDamage + damageBonus) * elementalDmgBonus * slayerBonus * resistanceMod * absorbMod;
return(finalDamage);
}
// war/void magic projectiles
else
{
if (criticalHit)
{
// Original:
// http://acpedia.org/wiki/Announcements_-_2002/08_-_Atonement#Letter_to_the_Players
// Critical Strikes: In addition to the skill-based damage bonus, each projectile spell has a 2% chance of causing a critical hit on the target and doing increased damage.
// A magical critical hit is similar in some respects to melee critical hits (although the damage calculation is handled differently).
// While a melee critical hit automatically does twice the maximum damage of the weapon, a magical critical hit will do an additional half the minimum damage of the spell.
// For instance, a magical critical hit from a level 7 spell, which does 110-180 points of damage, would add an additional 55 points of damage to the spell.
// Later updated for PvE only:
// http://acpedia.org/wiki/Announcements_-_2004/07_-_Treaties_in_Stone#Letter_to_the_Players
// Currently when a War Magic spell scores a critical hit, it adds a multiple of the base damage of the spell to a normal damage roll.
// Starting in July, War Magic critical hits will instead add a multiple of the maximum damage of the spell.
// No more crits that do less damage than non-crits!
if (isPVP) // PvP: 50% of the MIN damage added to normal damage roll
{
damageBonus = Spell.MinDamage * 0.5f;
}
else // PvE: 50% of the MAX damage added to normal damage roll
{
damageBonus = Spell.MaxDamage * 0.5f;
}
var critDamageMod = GetWeaponCritDamageMod(sourceCreature, attackSkill, target);
damageBonus *= critDamageMod;
}
/* War Magic skill-based damage bonus
* http://acpedia.org/wiki/Announcements_-_2002/08_-_Atonement#Letter_to_the_Players
*/
if (sourcePlayer != null)
{
// per retail stats, level 8 difficulty is capped to 350 instead of 400
// without this, level 7s have the potential to deal more damage than level 8s
var difficulty = Math.Min(Spell.Power, 350);
var magicSkill = sourcePlayer.GetCreatureSkill(Spell.School).Current;
if (magicSkill > difficulty)
{
// Bonus clamped to a maximum of 50%
//var percentageBonus = Math.Clamp((magicSkill - Spell.Power) / 100.0f, 0.0f, 0.5f);
var percentageBonus = (magicSkill - difficulty) / 1000.0f;
warSkillBonus = Spell.MinDamage * percentageBonus;
}
}
var baseDamage = ThreadSafeRandom.Next(Spell.MinDamage, Spell.MaxDamage);
var weaponResistanceMod = GetWeaponResistanceModifier(sourceCreature, attackSkill, Spell.DamageType);
// if attacker/weapon has IgnoreMagicResist directly, do not transfer to spell projectile
// only pass if SpellProjectile has it directly, such as 2637 - Invoking Aun Tanua
var resistanceMod = Math.Max(0.0f, target.GetResistanceMod(resistanceType, this, null, weaponResistanceMod));
finalDamage = baseDamage + damageBonus + warSkillBonus;
finalDamage *= resistanceMod * elementalDmgBonus * slayerBonus * absorbMod;
return(finalDamage);
}
}
/// <summary>
/// Calculates the damage for a spell projectile
/// Used by war magic, void magic, and life magic projectiles
/// </summary>
public double?CalculateDamage(WorldObject source, Creature target, ref bool criticalHit, ref bool critDefended)
{
var sourcePlayer = source as Player;
var targetPlayer = target as Player;
if (source == null || targetPlayer != null && targetPlayer.Invincible == true)
{
return(null);
}
// target already dead?
if (target.Health.Current <= 0)
{
return(-1);
}
// check lifestone protection
if (targetPlayer != null && targetPlayer.UnderLifestoneProtection)
{
if (sourcePlayer != null)
{
sourcePlayer.Session.Network.EnqueueSend(new GameMessageSystemChat($"The Lifestone's magic protects {targetPlayer.Name} from the attack!", ChatMessageType.Magic));
}
targetPlayer.HandleLifestoneProtection();
return(null);
}
double damageBonus = 0.0f, warSkillBonus = 0.0f, finalDamage = 0.0f;
var resistanceType = Creature.GetResistanceType(Spell.DamageType);
var resisted = source.ResistSpell(target, Spell);
if (resisted != null && resisted == true)
{
return(null);
}
CreatureSkill attackSkill = null;
var sourceCreature = source as Creature;
if (sourceCreature != null)
{
attackSkill = sourceCreature.GetCreatureSkill(Spell.School);
}
// critical hit
var critical = GetWeaponMagicCritFrequencyModifier(sourceCreature, attackSkill, target);
if (ThreadSafeRandom.Next(0.0f, 1.0f) < critical)
{
if (targetPlayer != null && targetPlayer.AugmentationCriticalDefense > 0)
{
var criticalDefenseMod = sourcePlayer != null ? 0.05f : 0.25f;
var criticalDefenseChance = targetPlayer.AugmentationCriticalDefense * criticalDefenseMod;
if (criticalDefenseChance > ThreadSafeRandom.Next(0.0f, 1.0f))
{
critDefended = true;
}
}
if (!critDefended)
{
criticalHit = true;
}
}
var shieldMod = GetShieldMod(target);
bool isPVP = sourcePlayer != null && targetPlayer != null;
if (isPVP && Spell.IsHarmful)
{
Player.UpdatePKTimers(sourcePlayer, targetPlayer);
}
var elementalDmgBonus = GetCasterElementalDamageModifier(sourceCreature, target, Spell.DamageType);
// Possible 2x + damage bonus for the slayer property
var slayerBonus = GetWeaponCreatureSlayerModifier(sourceCreature, target);
// life magic projectiles: ie., martyr's hecatomb
if (Spell.School == MagicSchool.LifeMagic)
{
var lifeMagicDamage = LifeProjectileDamage * Spell.DamageRatio;
// could life magic projectiles crit?
// if so, did they use the same 1.5x formula as war magic, instead of 2.0x?
if (criticalHit)
{
damageBonus = lifeMagicDamage * 0.5f * GetWeaponCritDamageMod(sourceCreature, attackSkill, target);
}
finalDamage = (lifeMagicDamage + damageBonus) * elementalDmgBonus * slayerBonus * shieldMod;
return(finalDamage);
}
// war/void magic projectiles
else
{
if (criticalHit)
{
if (isPVP) // PvP: 50% of the MIN damage added to normal damage roll
{
damageBonus = Spell.MinDamage * 0.5f;
}
else // PvE: 50% of the MAX damage added to normal damage roll
{
damageBonus = Spell.MaxDamage * 0.5f;
}
var critDamageMod = GetWeaponCritDamageMod(sourceCreature, attackSkill, target);
damageBonus *= critDamageMod;
}
/* War Magic skill-based damage bonus
* http://acpedia.org/wiki/Announcements_-_2002/08_-_Atonement#Letter_to_the_Players
*/
if (sourcePlayer != null)
{
// per retail stats, level 8 difficulty is capped to 350 instead of 400
// without this, level 7s have the potential to deal more damage than level 8s
var difficulty = Math.Min(Spell.Power, 350);
var magicSkill = sourcePlayer.GetCreatureSkill(Spell.School).Current;
if (magicSkill > difficulty)
{
// Bonus clamped to a maximum of 50%
//var percentageBonus = Math.Clamp((magicSkill - Spell.Power) / 100.0f, 0.0f, 0.5f);
var percentageBonus = (magicSkill - difficulty) / 1000.0f;
warSkillBonus = Spell.MinDamage * percentageBonus;
}
}
var baseDamage = ThreadSafeRandom.Next(Spell.MinDamage, Spell.MaxDamage);
var weaponResistanceMod = GetWeaponResistanceModifier(sourceCreature, attackSkill, Spell.DamageType);
finalDamage = baseDamage + damageBonus + warSkillBonus;
finalDamage *= target.GetResistanceMod(resistanceType, null, weaponResistanceMod)
* elementalDmgBonus * slayerBonus * shieldMod;
return(finalDamage);
}
}
/// <summary>
/// Calculates the damage for a spell projectile
/// Used by war magic, void magic, and life magic projectiles
/// </summary>
public double?CalculateDamage(WorldObject _source, Creature target, ref bool criticalHit)
{
var source = _source as Creature;
var sourcePlayer = source as Player;
var targetPlayer = target as Player;
if (source == null || targetPlayer != null && targetPlayer.Invincible == true)
{
return(null);
}
// target already dead?
if (target.Health.Current <= 0)
{
return(-1);
}
// check lifestone protection
if (targetPlayer != null && targetPlayer.UnderLifestoneProtection)
{
targetPlayer.HandleLifestoneProtection();
return(null);
}
double damageBonus = 0.0f, warSkillBonus = 0.0f, finalDamage = 0.0f;
var resistanceType = Creature.GetResistanceType(Spell.DamageType);
var resisted = source.ResistSpell(target, Spell);
if (resisted != null && resisted == true)
{
return(null);
}
CreatureSkill attackSkill = null;
var sourceCreature = source as Creature;
if (sourceCreature != null)
{
attackSkill = sourceCreature.GetCreatureSkill(Spell.School);
}
// critical hit
var critical = GetWeaponMagicCritFrequencyModifier(source, attackSkill, target);
if (ThreadSafeRandom.Next(0.0f, 1.0f) < critical)
{
var criticalDefended = false;
if (targetPlayer != null && targetPlayer.AugmentationCriticalDefense > 0)
{
var criticalDefenseMod = sourcePlayer != null ? 0.05f : 0.25f;
var criticalDefenseChance = targetPlayer.AugmentationCriticalDefense * criticalDefenseMod;
if (criticalDefenseChance > ThreadSafeRandom.Next(0.0f, 1.0f))
{
criticalDefended = true;
}
}
if (!criticalDefended)
{
criticalHit = true;
}
}
var shieldMod = GetShieldMod(target);
bool isPVP = sourcePlayer != null && targetPlayer != null;
var elementalDmgBonus = GetCasterElementalDamageModifier(source, target, Spell.DamageType);
// Possible 2x + damage bonus for the slayer property
var slayerBonus = GetWeaponCreatureSlayerModifier(source, target);
// life magic projectiles: ie., martyr's hecatomb
if (Spell.School == MagicSchool.LifeMagic)
{
var lifeMagicDamage = LifeProjectileDamage * Spell.DamageRatio;
// could life magic projectiles crit?
// if so, did they use the same 1.5x formula as war magic, instead of 2.0x?
if (criticalHit)
{
damageBonus = lifeMagicDamage * 0.5f * GetWeaponCritDamageMod(source, attackSkill, target);
}
finalDamage = (lifeMagicDamage + damageBonus) * elementalDmgBonus * slayerBonus * shieldMod;
return(finalDamage);
}
// war magic projectiles (and void currently)
else
{
if (criticalHit)
{
if (isPVP) // PvP: 50% of the MIN damage added to normal damage roll
{
damageBonus = Spell.MinDamage * 0.5f;
}
else // PvE: 50% of the MAX damage added to normal damage roll
{
damageBonus = Spell.MaxDamage * 0.5f;
}
var critDamageMod = GetWeaponCritDamageMod(source, attackSkill, target);
damageBonus *= critDamageMod;
}
/* War Magic skill-based damage bonus
* http://acpedia.org/wiki/Announcements_-_2002/08_-_Atonement#Letter_to_the_Players
*/
if (sourcePlayer != null && Spell.School == MagicSchool.WarMagic)
{
var warSkill = source.GetCreatureSkill(Spell.School).Current;
if (warSkill > Spell.Power)
{
// Bonus clamped to a maximum of 50%
var percentageBonus = Math.Clamp((warSkill - Spell.Power) / 100.0f, 0.0f, 0.5f);
warSkillBonus = Spell.MinDamage * percentageBonus;
}
}
var baseDamage = ThreadSafeRandom.Next(Spell.MinDamage, Spell.MaxDamage);
var weaponResistanceMod = GetWeaponResistanceModifier(source, attackSkill, Spell.DamageType);
finalDamage = baseDamage + damageBonus + warSkillBonus;
finalDamage *= target.GetResistanceMod(resistanceType, source, weaponResistanceMod)
* elementalDmgBonus * slayerBonus * shieldMod;
return(finalDamage);
}
}
/// <summary>
/// Calculates the damage for a spell projectile
/// Used by war magic, void magic, and life magic projectiles
/// </summary>
public float?CalculateDamage(WorldObject source, WorldObject caster, Creature target, ref bool criticalHit, ref bool critDefended, ref bool overpower)
{
var sourcePlayer = source as Player;
var targetPlayer = target as Player;
if (source == null || !target.IsAlive || targetPlayer != null && targetPlayer.Invincible)
{
return(null);
}
// check lifestone protection
if (targetPlayer != null && targetPlayer.UnderLifestoneProtection)
{
if (sourcePlayer != null)
{
sourcePlayer.Session.Network.EnqueueSend(new GameMessageSystemChat($"The Lifestone's magic protects {targetPlayer.Name} from the attack!", ChatMessageType.Magic));
}
targetPlayer.HandleLifestoneProtection();
return(null);
}
var critDamageBonus = 0.0f;
var weaponCritDamageMod = 1.0f;
var weaponResistanceMod = 1.0f;
var resistanceMod = 1.0f;
// life magic
var lifeMagicDamage = 0.0f;
// war/void magic
var baseDamage = 0;
var skillBonus = 0.0f;
var finalDamage = 0.0f;
var resistanceType = Creature.GetResistanceType(Spell.DamageType);
var sourceCreature = source as Creature;
if (sourceCreature?.Overpower != null)
{
overpower = Creature.GetOverpower(sourceCreature, target);
}
var resisted = source.TryResistSpell(target, Spell, caster, true);
if (resisted && !overpower)
{
return(null);
}
CreatureSkill attackSkill = null;
if (sourceCreature != null)
{
attackSkill = sourceCreature.GetCreatureSkill(Spell.School);
}
// critical hit
var criticalChance = GetWeaponMagicCritFrequency(sourceCreature, attackSkill, target);
if (ThreadSafeRandom.Next(0.0f, 1.0f) < criticalChance)
{
if (targetPlayer != null && targetPlayer.AugmentationCriticalDefense > 0)
{
var criticalDefenseMod = sourcePlayer != null ? 0.05f : 0.25f;
var criticalDefenseChance = targetPlayer.AugmentationCriticalDefense * criticalDefenseMod;
if (criticalDefenseChance > ThreadSafeRandom.Next(0.0f, 1.0f))
{
critDefended = true;
}
}
if (!critDefended)
{
criticalHit = true;
}
}
var absorbMod = GetAbsorbMod(target);
bool isPVP = sourcePlayer != null && targetPlayer != null;
//http://acpedia.org/wiki/Announcements_-_2014/01_-_Forces_of_Nature - Aegis is 72% effective in PvP
if (isPVP && (target.CombatMode == CombatMode.Melee || target.CombatMode == CombatMode.Missile))
{
absorbMod = 1 - absorbMod;
absorbMod *= 0.72f;
absorbMod = 1 - absorbMod;
}
if (isPVP && Spell.IsHarmful)
{
Player.UpdatePKTimers(sourcePlayer, targetPlayer);
}
var elementalDamageMod = GetCasterElementalDamageModifier(sourceCreature, target, Spell.DamageType);
// Possible 2x + damage bonus for the slayer property
var slayerMod = GetWeaponCreatureSlayerModifier(sourceCreature, target);
// life magic projectiles: ie., martyr's hecatomb
if (Spell.MetaSpellType == ACE.Entity.Enum.SpellType.LifeProjectile)
{
lifeMagicDamage = LifeProjectileDamage * Spell.DamageRatio;
// could life magic projectiles crit?
// if so, did they use the same 1.5x formula as war magic, instead of 2.0x?
if (criticalHit)
{
weaponCritDamageMod = GetWeaponCritDamageMod(sourceCreature, attackSkill, target);
critDamageBonus = lifeMagicDamage * 0.5f * weaponCritDamageMod;
}
weaponResistanceMod = GetWeaponResistanceModifier(sourceCreature, attackSkill, Spell.DamageType);
// if attacker/weapon has IgnoreMagicResist directly, do not transfer to spell projectile
// only pass if SpellProjectile has it directly, such as 2637 - Invoking Aun Tanua
resistanceMod = (float)Math.Max(0.0f, target.GetResistanceMod(resistanceType, this, null, weaponResistanceMod));
finalDamage = (lifeMagicDamage + critDamageBonus) * elementalDamageMod * slayerMod * resistanceMod * absorbMod;
}
// war/void magic projectiles
else
{
if (criticalHit)
{
// Original:
// http://acpedia.org/wiki/Announcements_-_2002/08_-_Atonement#Letter_to_the_Players
// Critical Strikes: In addition to the skill-based damage bonus, each projectile spell has a 2% chance of causing a critical hit on the target and doing increased damage.
// A magical critical hit is similar in some respects to melee critical hits (although the damage calculation is handled differently).
// While a melee critical hit automatically does twice the maximum damage of the weapon, a magical critical hit will do an additional half the minimum damage of the spell.
// For instance, a magical critical hit from a level 7 spell, which does 110-180 points of damage, would add an additional 55 points of damage to the spell.
// Later updated for PvE only:
// http://acpedia.org/wiki/Announcements_-_2004/07_-_Treaties_in_Stone#Letter_to_the_Players
// Currently when a War Magic spell scores a critical hit, it adds a multiple of the base damage of the spell to a normal damage roll.
// Starting in July, War Magic critical hits will instead add a multiple of the maximum damage of the spell.
// No more crits that do less damage than non-crits!
if (isPVP) // PvP: 50% of the MIN damage added to normal damage roll
{
critDamageBonus = Spell.MinDamage * 0.5f;
}
else // PvE: 50% of the MAX damage added to normal damage roll
{
critDamageBonus = Spell.MaxDamage * 0.5f;
}
weaponCritDamageMod = GetWeaponCritDamageMod(sourceCreature, attackSkill, target);
critDamageBonus *= weaponCritDamageMod;
}
/* War Magic skill-based damage bonus
* http://acpedia.org/wiki/Announcements_-_2002/08_-_Atonement#Letter_to_the_Players
*/
if (sourcePlayer != null)
{
// per retail stats, level 8 difficulty is capped to 350 instead of 400
// without this, level 7s have the potential to deal more damage than level 8s
var difficulty = Math.Min(Spell.Power, 350); // was skillMod possibility capped to 1.3x for level 7 spells in retail, instead of level 8 difficulty cap?
var magicSkill = sourcePlayer.GetCreatureSkill(Spell.School).Current;
if (magicSkill > difficulty)
{
// Bonus clamped to a maximum of 50%
//var percentageBonus = Math.Clamp((magicSkill - Spell.Power) / 100.0f, 0.0f, 0.5f);
var percentageBonus = (magicSkill - difficulty) / 1000.0f;
skillBonus = Spell.MinDamage * percentageBonus;
}
}
baseDamage = ThreadSafeRandom.Next(Spell.MinDamage, Spell.MaxDamage);
weaponResistanceMod = GetWeaponResistanceModifier(sourceCreature, attackSkill, Spell.DamageType);
// if attacker/weapon has IgnoreMagicResist directly, do not transfer to spell projectile
// only pass if SpellProjectile has it directly, such as 2637 - Invoking Aun Tanua
resistanceMod = (float)Math.Max(0.0f, target.GetResistanceMod(resistanceType, this, null, weaponResistanceMod));
if (sourcePlayer != null && targetPlayer != null && Spell.DamageType == DamageType.Nether)
{
// for direct damage from void spells in pvp,
// apply void_pvp_modifier *on top of* the player's natural resistance to nether
// this supposedly brings the direct damage from void spells in pvp closer to retail
resistanceMod *= (float)PropertyManager.GetDouble("void_pvp_modifier").Item;
}
finalDamage = baseDamage + critDamageBonus + skillBonus;
finalDamage *= elementalDamageMod * slayerMod * resistanceMod * absorbMod;
}
// show debug info
if (sourceCreature != null && sourceCreature.DebugDamage.HasFlag(Creature.DebugDamageType.Attacker))
{
ShowInfo(sourceCreature, Spell, attackSkill, criticalChance, criticalHit, critDefended, overpower, weaponCritDamageMod, skillBonus, baseDamage, critDamageBonus, elementalDamageMod, slayerMod, weaponResistanceMod, resistanceMod, absorbMod, LifeProjectileDamage, lifeMagicDamage, finalDamage);
}
if (target.DebugDamage.HasFlag(Creature.DebugDamageType.Defender))
{
ShowInfo(target, Spell, attackSkill, criticalChance, criticalHit, critDefended, overpower, weaponCritDamageMod, skillBonus, baseDamage, critDamageBonus, elementalDamageMod, slayerMod, weaponResistanceMod, resistanceMod, absorbMod, LifeProjectileDamage, lifeMagicDamage, finalDamage);
}
return(finalDamage);
}
