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);
+}
+
+
+
+