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Diffstat (limited to '')
| -rw-r--r-- | src/Entities/EntityEffect.cpp | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/src/Entities/EntityEffect.cpp b/src/Entities/EntityEffect.cpp new file mode 100644 index 000000000..fdcbe822e --- /dev/null +++ b/src/Entities/EntityEffect.cpp @@ -0,0 +1,411 @@ +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + +#include "EntityEffect.h" +#include "../Mobs/Monster.h" +#include "Player.h" + + + + + +int cEntityEffect::GetPotionColor(short a_ItemDamage) +{ + // Lowest six bits + return (a_ItemDamage & 0x3f); +} + + + + + +cEntityEffect::eType cEntityEffect::GetPotionEffectType(short a_ItemDamage) +{ + // Lowest four bits + // Potion effect bits are different from entity effect values + // For reference: http://minecraft.gamepedia.com/Data_values#.22Potion_effect.22_bits + switch (a_ItemDamage & 0x0f) + { + case 0x01: return cEntityEffect::effRegeneration; + case 0x02: return cEntityEffect::effSpeed; + case 0x03: return cEntityEffect::effFireResistance; + case 0x04: return cEntityEffect::effPoison; + case 0x05: return cEntityEffect::effInstantHealth; + case 0x06: return cEntityEffect::effNightVision; + case 0x08: return cEntityEffect::effWeakness; + case 0x09: return cEntityEffect::effStrength; + case 0x0a: return cEntityEffect::effSlowness; + case 0x0c: return cEntityEffect::effInstantDamage; + case 0x0d: return cEntityEffect::effWaterBreathing; + case 0x0e: return cEntityEffect::effInvisibility; + + // No effect potions + case 0x00: + case 0x07: + case 0x0b: // Will be potion of leaping in 1.8 + case 0x0f: + { + break; + } + } + return cEntityEffect::effNoEffect; +} + + + + + +short cEntityEffect::GetPotionEffectIntensity(short a_ItemDamage) +{ + // Level II potion if the fifth lowest bit is set + return ((a_ItemDamage & 0x20) != 0) ? 1 : 0; +} + + + + + +int cEntityEffect::GetPotionEffectDuration(short a_ItemDamage) +{ + // Base duration in ticks + int base = 0; + double TierCoeff = 1, ExtCoeff = 1, SplashCoeff = 1; + + switch (GetPotionEffectType(a_ItemDamage)) + { + case cEntityEffect::effRegeneration: + case cEntityEffect::effPoison: + { + base = 900; + break; + } + + case cEntityEffect::effSpeed: + case cEntityEffect::effFireResistance: + case cEntityEffect::effNightVision: + case cEntityEffect::effStrength: + case cEntityEffect::effWaterBreathing: + case cEntityEffect::effInvisibility: + { + base = 3600; + break; + } + + case cEntityEffect::effWeakness: + case cEntityEffect::effSlowness: + { + base = 1800; + break; + } + } + + // If potion is level II, half the duration. If not, stays the same + TierCoeff = (GetPotionEffectIntensity(a_ItemDamage) > 0) ? 0.5 : 1; + + // If potion is extended, multiply duration by 8/3. If not, stays the same + // Extended potion if sixth lowest bit is set + ExtCoeff = (a_ItemDamage & 0x40) ? (8.0 / 3.0) : 1; + + // If potion is splash potion, multiply duration by 3/4. If not, stays the same + SplashCoeff = IsPotionDrinkable(a_ItemDamage) ? 1 : 0.75; + + // Ref.: + // http://minecraft.gamepedia.com/Data_values#.22Tier.22_bit + // http://minecraft.gamepedia.com/Data_values#.22Extended_duration.22_bit + // http://minecraft.gamepedia.com/Data_values#.22Splash_potion.22_bit + + return (int)(base * TierCoeff * ExtCoeff * SplashCoeff); +} + + + + + +bool cEntityEffect::IsPotionDrinkable(short a_ItemDamage) +{ + // Drinkable potion if 13th lowest bit is set + // Ref.: http://minecraft.gamepedia.com/Potions#Data_value_table + return ((a_ItemDamage & 0x2000) != 0); +} + + + + + +cEntityEffect::cEntityEffect(): + m_Ticks(0), + m_Duration(0), + m_Intensity(0), + m_DistanceModifier(1) +{ + +} + + + + + +cEntityEffect::cEntityEffect(int a_Duration, short a_Intensity, double a_DistanceModifier): + m_Ticks(0), + m_Duration(a_Duration), + m_Intensity(a_Intensity), + m_DistanceModifier(a_DistanceModifier) +{ + +} + + + + + +cEntityEffect::cEntityEffect(const cEntityEffect & a_OtherEffect): + m_Ticks(a_OtherEffect.m_Ticks), + m_Duration(a_OtherEffect.m_Duration), + m_Intensity(a_OtherEffect.m_Intensity), + m_DistanceModifier(a_OtherEffect.m_DistanceModifier) +{ + +} + + + + + +cEntityEffect & cEntityEffect::operator=(cEntityEffect a_OtherEffect) +{ + std::swap(m_Ticks, a_OtherEffect.m_Ticks); + std::swap(m_Duration, a_OtherEffect.m_Duration); + std::swap(m_Intensity, a_OtherEffect.m_Intensity); + std::swap(m_DistanceModifier, a_OtherEffect.m_DistanceModifier); + return *this; +} + + + + + +cEntityEffect * cEntityEffect::CreateEntityEffect(cEntityEffect::eType a_EffectType, int a_Duration, short a_Intensity, double a_DistanceModifier) +{ + switch (a_EffectType) + { + case cEntityEffect::effNoEffect: return new cEntityEffect (a_Duration, a_Intensity, a_DistanceModifier); + + case cEntityEffect::effAbsorption: return new cEntityEffectAbsorption (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effBlindness: return new cEntityEffectBlindness (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effFireResistance: return new cEntityEffectFireResistance(a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effHaste: return new cEntityEffectHaste (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effHealthBoost: return new cEntityEffectHealthBoost (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effHunger: return new cEntityEffectHunger (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effInstantDamage: return new cEntityEffectInstantDamage (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effInstantHealth: return new cEntityEffectInstantHealth (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effInvisibility: return new cEntityEffectInvisibility (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effJumpBoost: return new cEntityEffectJumpBoost (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effMiningFatigue: return new cEntityEffectMiningFatigue (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effNausea: return new cEntityEffectNausea (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effNightVision: return new cEntityEffectNightVision (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effPoison: return new cEntityEffectPoison (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effRegeneration: return new cEntityEffectRegeneration (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effResistance: return new cEntityEffectResistance (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effSaturation: return new cEntityEffectSaturation (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effSlowness: return new cEntityEffectSlowness (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effSpeed: return new cEntityEffectSpeed (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effStrength: return new cEntityEffectStrength (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effWaterBreathing: return new cEntityEffectWaterBreathing(a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effWeakness: return new cEntityEffectWeakness (a_Duration, a_Intensity, a_DistanceModifier); + case cEntityEffect::effWither: return new cEntityEffectWither (a_Duration, a_Intensity, a_DistanceModifier); + } + + ASSERT(!"Unhandled entity effect type!"); + return NULL; +} + + + + + +void cEntityEffect::OnTick(cPawn & a_Target) +{ + // Reduce the effect's duration + ++m_Ticks; +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectInstantHealth: + +void cEntityEffectInstantHealth::OnActivate(cPawn & a_Target) +{ + // Base amount = 6, doubles for every increase in intensity + int amount = (int)(6 * (1 << m_Intensity) * m_DistanceModifier); + + if (a_Target.IsMob() && ((cMonster &) a_Target).IsUndead()) + { + a_Target.TakeDamage(dtPotionOfHarming, NULL, amount, 0); // TODO: Store attacker in a pointer-safe way, pass to TakeDamage + return; + } + a_Target.Heal(amount); +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectInstantDamage: + +void cEntityEffectInstantDamage::OnActivate(cPawn & a_Target) +{ + // Base amount = 6, doubles for every increase in intensity + int amount = (int)(6 * (1 << m_Intensity) * m_DistanceModifier); + + if (a_Target.IsMob() && ((cMonster &) a_Target).IsUndead()) + { + a_Target.Heal(amount); + return; + } + a_Target.TakeDamage(dtPotionOfHarming, NULL, amount, 0); // TODO: Store attacker in a pointer-safe way, pass to TakeDamage +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectRegeneration: + +void cEntityEffectRegeneration::OnTick(cPawn & a_Target) +{ + super::OnTick(a_Target); + + if (a_Target.IsMob() && ((cMonster &) a_Target).IsUndead()) + { + return; + } + + // Regen frequency = 50 ticks, divided by potion level (Regen II = 25 ticks) + int frequency = (int) std::floor(50.0 / (double)(m_Intensity + 1)); + + if ((m_Ticks % frequency) != 0) + { + return; + } + + a_Target.Heal(1); +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectHunger: + +void cEntityEffectHunger::OnTick(cPawn & a_Target) +{ + super::OnTick(a_Target); + + if (a_Target.IsPlayer()) + { + cPlayer & Target = (cPlayer &) a_Target; + Target.SetFoodExhaustionLevel(Target.GetFoodExhaustionLevel() + 0.025); // 0.5 per second = 0.025 per tick + } +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectWeakness: + +void cEntityEffectWeakness::OnTick(cPawn & a_Target) +{ + super::OnTick(a_Target); + + // Damage reduction = 0.5 damage, multiplied by potion level (Weakness II = 1 damage) + // double dmg_reduc = 0.5 * (a_Effect.GetIntensity() + 1); + + // TODO: Implement me! + // TODO: Weakened villager zombies can be turned back to villagers with the god apple +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectPoison: + +void cEntityEffectPoison::OnTick(cPawn & a_Target) +{ + super::OnTick(a_Target); + + if (a_Target.IsMob()) + { + cMonster & Target = (cMonster &) a_Target; + + // Doesn't effect undead mobs, spiders + if ( + Target.IsUndead() || + (Target.GetMobType() == cMonster::mtSpider) || + (Target.GetMobType() == cMonster::mtCaveSpider) + ) + { + return; + } + } + + // Poison frequency = 25 ticks, divided by potion level (Poison II = 12 ticks) + int frequency = (int) std::floor(25.0 / (double)(m_Intensity + 1)); + + if ((m_Ticks % frequency) == 0) + { + // Cannot take poison damage when health is at 1 + if (a_Target.GetHealth() > 1) + { + a_Target.TakeDamage(dtPoisoning, NULL, 1, 0); + } + } +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectWither: + +void cEntityEffectWither::OnTick(cPawn & a_Target) +{ + super::OnTick(a_Target); + + // Damage frequency = 40 ticks, divided by effect level (Wither II = 20 ticks) + int frequency = (int) std::floor(25.0 / (double)(m_Intensity + 1)); + + if ((m_Ticks % frequency) == 0) + { + a_Target.TakeDamage(dtWither, NULL, 1, 0); + } +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +// cEntityEffectSaturation: + +void cEntityEffectSaturation::OnTick(cPawn & a_Target) +{ + if (a_Target.IsPlayer()) + { + cPlayer & Target = (cPlayer &) a_Target; + Target.SetFoodSaturationLevel(Target.GetFoodSaturationLevel() + (1 + m_Intensity)); // Increase saturation 1 per tick, adds 1 for every increase in level + } +} + + + + |