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-rw-r--r--src/Entities/SplashPotionEntity.cpp134
1 files changed, 134 insertions, 0 deletions
diff --git a/src/Entities/SplashPotionEntity.cpp b/src/Entities/SplashPotionEntity.cpp
new file mode 100644
index 000000000..fd1a0179b
--- /dev/null
+++ b/src/Entities/SplashPotionEntity.cpp
@@ -0,0 +1,134 @@
+#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#include "SplashPotionEntity.h"
+#include "Pawn.h"
+#include "../ClientHandle.h"
+
+
+
+
+
+/// Converts an angle in radians into a byte representation used by the network protocol
+#define ANGLE_TO_PROTO(X) (Byte)(X * 255 / 360)
+
+////////////////////////////////////////////////////////////////////////////////
+// cSplashPotionEntityCallback:
+
+/** Used to distribute the splashed potion effect among nearby entities */
+class cSplashPotionCallback :
+ public cEntityCallback
+{
+public:
+ /** Creates the callback.
+ @param a_HitPos The position where the splash potion has splashed
+ @param a_EntityEffectType The effect type of the potion
+ @param a_EntityEffect The effect description */
+ cSplashPotionCallback(const Vector3d & a_HitPos, cEntityEffect::eType a_EntityEffectType, const cEntityEffect & a_EntityEffect) :
+ m_HitPos(a_HitPos),
+ m_EntityEffectType(a_EntityEffectType),
+ m_EntityEffect(a_EntityEffect)
+ {
+ }
+
+ /** Called by cWorld::ForEachEntity(), adds the stored entity effect to the entity, if it is close enough. */
+ virtual bool Item(cEntity * a_Entity) override
+ {
+ if (!a_Entity->IsPawn())
+ {
+ // Not an entity that can take effects
+ return false;
+ }
+
+ double SplashDistance = (a_Entity->GetPosition() - m_HitPos).Length();
+ if (SplashDistance >= 20)
+ {
+ // Too far away
+ return false;
+ }
+
+ // y = -0.25x + 1, where x is the distance from the player. Approximation for potion splash.
+ // TODO: better equation
+ double Reduction = -0.25 * SplashDistance + 1.0;
+ Reduction = std::max(Reduction, 0.0);
+
+ ((cPawn *) a_Entity)->AddEntityEffect(m_EntityEffectType, m_EntityEffect.GetDuration(), m_EntityEffect.GetIntensity(), Reduction);
+ return false;
+ }
+
+private:
+ const Vector3d & m_HitPos;
+ cEntityEffect::eType m_EntityEffectType;
+ const cEntityEffect & m_EntityEffect;
+};
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cSplashPotionEntity:
+
+cSplashPotionEntity::cSplashPotionEntity(
+ cEntity * a_Creator,
+ double a_X, double a_Y, double a_Z,
+ const Vector3d & a_Speed,
+ const cItem & a_Item
+) :
+ super(pkSplashPotion, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25),
+ m_DestroyTimer(-1)
+{
+ SetSpeed(a_Speed);
+ m_EntityEffectType = cEntityEffect::GetPotionEffectType(a_Item.m_ItemDamage);
+ m_EntityEffect = cEntityEffect(
+ cEntityEffect::GetPotionEffectDuration(a_Item.m_ItemDamage),
+ cEntityEffect::GetPotionEffectIntensity(a_Item.m_ItemDamage)
+ );
+ m_PotionColor = cEntityEffect::GetPotionColor(a_Item.m_ItemDamage);
+}
+
+
+
+
+
+void cSplashPotionEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace)
+{
+ Splash(a_HitPos);
+ m_DestroyTimer = 2;
+}
+
+
+
+
+
+void cSplashPotionEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
+{
+ a_EntityHit.TakeDamage(dtRangedAttack, this, 0, 1);
+ Splash(a_HitPos);
+ m_DestroyTimer = 5;
+}
+
+
+
+
+
+void cSplashPotionEntity::Splash(const Vector3d & a_HitPos)
+{
+ cSplashPotionCallback Callback(a_HitPos, m_EntityEffectType, m_EntityEffect);
+ m_World->ForEachEntity(Callback);
+
+ m_World->BroadcastSoundParticleEffect(2002, (int)floor(a_HitPos.x), (int)floor(a_HitPos.y), (int)floor(a_HitPos.z), m_PotionColor);
+}
+
+
+
+
+
+void cSplashPotionEntity::SpawnOn(cClientHandle & a_Client)
+{
+ a_Client.SendSpawnObject(*this, 73, m_PotionColor, ANGLE_TO_PROTO(GetYaw()), ANGLE_TO_PROTO(GetPitch()));
+ a_Client.SendEntityMetadata(*this);
+}
+
+
+
+