From 87af95b67cb45b72bffd77f7744dc1a10cb3f25a Mon Sep 17 00:00:00 2001 From: Lane Kolbly Date: Sun, 23 Jul 2017 04:46:38 -0500 Subject: Updated armor cover calculation. (#3858) * Updated armor damage calculation. + Added lua docs, added casts from float to int. * Changed verbage in docstring and comment. --- src/Entities/Entity.cpp | 195 ++++++++++++++++++------------------------------ 1 file changed, 73 insertions(+), 122 deletions(-) (limited to 'src/Entities/Entity.cpp') diff --git a/src/Entities/Entity.cpp b/src/Entities/Entity.cpp index f2836de9b..b596bc93d 100644 --- a/src/Entities/Entity.cpp +++ b/src/Entities/Entity.cpp @@ -268,7 +268,16 @@ void cEntity::TakeDamage(cEntity & a_Attacker) void cEntity::TakeDamage(eDamageType a_DamageType, cEntity * a_Attacker, int a_RawDamage, double a_KnockbackAmount) { - int FinalDamage = a_RawDamage - GetArmorCoverAgainst(a_Attacker, a_DamageType, a_RawDamage); + int ArmorCover = GetArmorCoverAgainst(a_Attacker, a_DamageType, a_RawDamage); + int EnchantmentCover = GetEnchantmentCoverAgainst(a_Attacker, a_DamageType, a_RawDamage); + int FinalDamage = a_RawDamage - ArmorCover - EnchantmentCover; + if ((FinalDamage == 0) && (a_RawDamage > 0)) + { + // Nobody's invincible + FinalDamage = 1; + } + ApplyArmorDamage(ArmorCover); + cEntity::TakeDamage(a_DamageType, a_Attacker, a_RawDamage, FinalDamage, a_KnockbackAmount); } @@ -278,7 +287,7 @@ void cEntity::TakeDamage(eDamageType a_DamageType, cEntity * a_Attacker, int a_R void cEntity::TakeDamage(eDamageType a_DamageType, UInt32 a_AttackerID, int a_RawDamage, double a_KnockbackAmount) { - class cNotifyWolves : public cEntityCallback + class cFindEntity : public cEntityCallback { public: @@ -300,8 +309,7 @@ void cEntity::TakeDamage(eDamageType a_DamageType, UInt32 a_AttackerID, int a_Ra } - int FinalDamage = m_RawDamage - m_Entity->GetArmorCoverAgainst(Attacker, m_DamageType, m_RawDamage); - m_Entity->TakeDamage(m_DamageType, Attacker, m_RawDamage, FinalDamage, m_KnockbackAmount); + m_Entity->TakeDamage(m_DamageType, Attacker, m_RawDamage, m_KnockbackAmount); return true; } } Callback; @@ -517,118 +525,8 @@ bool cEntity::DoTakeDamage(TakeDamageInfo & a_TDI) Player->GetStatManager().AddValue(statDamageDealt, static_cast(floor(a_TDI.FinalDamage * 10 + 0.5))); } - if (IsPlayer()) - { - double TotalEPF = 0.0; - double EPFProtection = 0.00; - double EPFFireProtection = 0.00; - double EPFBlastProtection = 0.00; - double EPFProjectileProtection = 0.00; - double EPFFeatherFalling = 0.00; - - const cItem ArmorItems[] = { GetEquippedHelmet(), GetEquippedChestplate(), GetEquippedLeggings(), GetEquippedBoots() }; - for (size_t i = 0; i < ARRAYCOUNT(ArmorItems); i++) - { - const cItem & Item = ArmorItems[i]; - int Level = static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchProtection)); - if (Level > 0) - { - EPFProtection += (6 + Level * Level) * 0.75 / 3; - } - - Level = static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchFireProtection)); - if (Level > 0) - { - EPFFireProtection += (6 + Level * Level) * 1.25 / 3; - } - - Level = static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchFeatherFalling)); - if (Level > 0) - { - EPFFeatherFalling += (6 + Level * Level) * 2.5 / 3; - } - - Level = static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchBlastProtection)); - if (Level > 0) - { - EPFBlastProtection += (6 + Level * Level) * 1.5 / 3; - } - - Level = static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchProjectileProtection)); - if (Level > 0) - { - EPFProjectileProtection += (6 + Level * Level) * 1.5 / 3; - } - - } - - TotalEPF = EPFProtection + EPFFireProtection + EPFFeatherFalling + EPFBlastProtection + EPFProjectileProtection; - - EPFProtection = EPFProtection / TotalEPF; - EPFFireProtection = EPFFireProtection / TotalEPF; - EPFFeatherFalling = EPFFeatherFalling / TotalEPF; - EPFBlastProtection = EPFBlastProtection / TotalEPF; - EPFProjectileProtection = EPFProjectileProtection / TotalEPF; - - if (TotalEPF > 25) - { - TotalEPF = 25; - } - - float RandomValue = GetRandomProvider().RandReal(0.5f, 1.0f); - - TotalEPF = ceil(TotalEPF * RandomValue); - - if (TotalEPF > 20) - { - TotalEPF = 20; - } - - EPFProtection = TotalEPF * EPFProtection; - EPFFireProtection = TotalEPF * EPFFireProtection; - EPFFeatherFalling = TotalEPF * EPFFeatherFalling; - EPFBlastProtection = TotalEPF * EPFBlastProtection; - EPFProjectileProtection = TotalEPF * EPFProjectileProtection; - - int RemovedDamage = 0; - - if ((a_TDI.DamageType != dtInVoid) && (a_TDI.DamageType != dtAdmin)) - { - RemovedDamage += CeilC(EPFProtection * 0.04 * a_TDI.FinalDamage); - } - - if ((a_TDI.DamageType == dtFalling) || (a_TDI.DamageType == dtEnderPearl)) - { - RemovedDamage += CeilC(EPFFeatherFalling * 0.04 * a_TDI.FinalDamage); - } - - if (a_TDI.DamageType == dtBurning) - { - RemovedDamage += CeilC(EPFFireProtection * 0.04 * a_TDI.FinalDamage); - } - - if (a_TDI.DamageType == dtExplosion) - { - RemovedDamage += CeilC(EPFBlastProtection * 0.04 * a_TDI.FinalDamage); - } - - if (a_TDI.DamageType == dtProjectile) - { - RemovedDamage += CeilC(EPFBlastProtection * 0.04 * a_TDI.FinalDamage); - } - - if (a_TDI.FinalDamage < RemovedDamage) - { - RemovedDamage = 0; - } - - a_TDI.FinalDamage -= RemovedDamage; - } - m_Health -= static_cast(a_TDI.FinalDamage); - // TODO: Apply damage to armor - m_Health = std::max(m_Health, 0); // Add knockback: @@ -708,6 +606,15 @@ int cEntity::GetRawDamageAgainst(const cEntity & a_Receiver) +void cEntity::ApplyArmorDamage(int DamageBlocked) +{ + // cEntities don't necessarily have armor to damage. + return; +} + + + + bool cEntity::ArmorCoversAgainst(eDamageType a_DamageType) { @@ -717,6 +624,7 @@ bool cEntity::ArmorCoversAgainst(eDamageType a_DamageType) case dtOnFire: case dtSuffocating: case dtDrowning: // TODO: This one could be a special case - in various MC versions (PC vs XBox) it is and isn't armor-protected + case dtEnderPearl: case dtStarving: case dtInVoid: case dtPoisoning: @@ -734,7 +642,6 @@ bool cEntity::ArmorCoversAgainst(eDamageType a_DamageType) case dtCactusContact: case dtLavaContact: case dtFireContact: - case dtEnderPearl: case dtExplosion: { return true; @@ -750,6 +657,49 @@ bool cEntity::ArmorCoversAgainst(eDamageType a_DamageType) +int cEntity::GetEnchantmentCoverAgainst(const cEntity * a_Attacker, eDamageType a_DamageType, int a_Damage) +{ + int TotalEPF = 0.0; + + const cItem ArmorItems[] = { GetEquippedHelmet(), GetEquippedChestplate(), GetEquippedLeggings(), GetEquippedBoots() }; + for (size_t i = 0; i < ARRAYCOUNT(ArmorItems); i++) + { + const cItem & Item = ArmorItems[i]; + + if ((a_DamageType != dtInVoid) && (a_DamageType != dtAdmin) && (a_DamageType != dtStarving)) + { + TotalEPF += static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchProtection)) * 1; + } + + if ((a_DamageType == dtBurning) || (a_DamageType == dtFireContact) || (a_DamageType == dtLavaContact)) + { + TotalEPF += static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchFireProtection)) * 2; + } + + if ((a_DamageType == dtFalling) || (a_DamageType == dtEnderPearl)) + { + TotalEPF += static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchFeatherFalling)) * 3; + } + + if (a_DamageType == dtExplosion) + { + TotalEPF += static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchBlastProtection)) * 2; + } + + // Note: Also blocks against fire charges, etc. + if (a_DamageType == dtProjectile) + { + TotalEPF += static_cast(Item.m_Enchantments.GetLevel(cEnchantments::enchProjectileProtection)) * 2; + } + } + int CappedEPF = std::min(20, TotalEPF); + return static_cast(a_Damage * CappedEPF / 25.0); +} + + + + + int cEntity::GetArmorCoverAgainst(const cEntity * a_Attacker, eDamageType a_DamageType, int a_Damage) { // Returns the hitpoints out of a_RawDamage that the currently equipped armor would cover @@ -761,15 +711,16 @@ int cEntity::GetArmorCoverAgainst(const cEntity * a_Attacker, eDamageType a_Dama } // Add up all armor points: - // Ref.: http://minecraft.gamepedia.com/Armor#Defense_points as of 2012_12_20 + // Ref.: http://minecraft.gamepedia.com/Armor#Defense_points int ArmorValue = 0; + int Toughness = 0; switch (GetEquippedHelmet().m_ItemType) { case E_ITEM_LEATHER_CAP: ArmorValue += 1; break; case E_ITEM_GOLD_HELMET: ArmorValue += 2; break; case E_ITEM_CHAIN_HELMET: ArmorValue += 2; break; case E_ITEM_IRON_HELMET: ArmorValue += 2; break; - case E_ITEM_DIAMOND_HELMET: ArmorValue += 3; break; + case E_ITEM_DIAMOND_HELMET: ArmorValue += 3; Toughness += 2; break; } switch (GetEquippedChestplate().m_ItemType) { @@ -777,7 +728,7 @@ int cEntity::GetArmorCoverAgainst(const cEntity * a_Attacker, eDamageType a_Dama case E_ITEM_GOLD_CHESTPLATE: ArmorValue += 5; break; case E_ITEM_CHAIN_CHESTPLATE: ArmorValue += 5; break; case E_ITEM_IRON_CHESTPLATE: ArmorValue += 6; break; - case E_ITEM_DIAMOND_CHESTPLATE: ArmorValue += 8; break; + case E_ITEM_DIAMOND_CHESTPLATE: ArmorValue += 8; Toughness += 2; break; } switch (GetEquippedLeggings().m_ItemType) { @@ -785,7 +736,7 @@ int cEntity::GetArmorCoverAgainst(const cEntity * a_Attacker, eDamageType a_Dama case E_ITEM_GOLD_LEGGINGS: ArmorValue += 3; break; case E_ITEM_CHAIN_LEGGINGS: ArmorValue += 4; break; case E_ITEM_IRON_LEGGINGS: ArmorValue += 5; break; - case E_ITEM_DIAMOND_LEGGINGS: ArmorValue += 6; break; + case E_ITEM_DIAMOND_LEGGINGS: ArmorValue += 6; Toughness += 2; break; } switch (GetEquippedBoots().m_ItemType) { @@ -793,14 +744,14 @@ int cEntity::GetArmorCoverAgainst(const cEntity * a_Attacker, eDamageType a_Dama case E_ITEM_GOLD_BOOTS: ArmorValue += 1; break; case E_ITEM_CHAIN_BOOTS: ArmorValue += 1; break; case E_ITEM_IRON_BOOTS: ArmorValue += 2; break; - case E_ITEM_DIAMOND_BOOTS: ArmorValue += 3; break; + case E_ITEM_DIAMOND_BOOTS: ArmorValue += 3; Toughness += 2; break; } // TODO: Special armor cases, such as wool, saddles, dog's collar // Ref.: http://minecraft.gamepedia.com/Armor#Mob_armor as of 2012_12_20 - // Now ArmorValue is in [0, 20] range, which corresponds to [0, 80%] protection. Calculate the hitpoints from that: - return a_Damage * (ArmorValue * 4) / 100; + double Reduction = std::max(ArmorValue / 5.0, ArmorValue - a_Damage / (2 + Toughness / 4.0)); + return static_cast(a_Damage * std::min(20.0, Reduction) / 25.0); } -- cgit v1.2.3