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-rw-r--r--src/Entities/EntityEffect.cpp411
1 files changed, 411 insertions, 0 deletions
diff --git a/src/Entities/EntityEffect.cpp b/src/Entities/EntityEffect.cpp
new file mode 100644
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+++ b/src/Entities/EntityEffect.cpp
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+#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
+ }
+}
+
+
+
+