Implemented the FireResistence potion effects.

This not only provides fire resistence, but also prevents blaze fireballs.
See #2556

Server/Plugins/APIDump/APIDesc.lua

@@ -1822,8 +1822,9 @@ a_Player:OpenWindow(Window);
 				TakeDamage = { Return = "" },
 				KilledBy = { Return = "" },
 				GetHealth = { Return = "number" },
-				AddEntityEffect = { Params = "EffectType, {{cEntityEffect}}", Return = "", Notes = "Applies an entity effect" },
-				RemoveEntityEffect = { Params = "EffectType", Return = "", Notes = "Removes a currently applied entity effect" },
+				AddEntityEffect = { Params = "{{cEntityEffect|EffectType}}, {{cEntityEffect}}", Return = "", Notes = "Applies an entity effect" },
+				RemoveEntityEffect = { Params = "{{cEntityEffect|EffectType}}", Return = "", Notes = "Removes a currently applied entity effect" },
+				HasEntityEffect = { Return = "bool", Params = "{{cEntityEffect|EffectType}}", Notes = "Returns true, if the supplied entity effect type is currently applied" }
 				ClearEntityEffects = { Return = "", Notes = "Removes all currently applied entity effects" },
 			},
 			Inherits = "cEntity",

src/Entities/Entity.cpp

@@ -1104,7 +1104,7 @@ void cEntity::TickBurning(cChunk & a_Chunk)
 		m_TicksSinceLastBurnDamage++;
 		if (m_TicksSinceLastBurnDamage >= BURN_TICKS_PER_DAMAGE)
 		{
-			if (!m_IsFireproof)
+			if (!IsFireproof())
 			{
 				TakeDamage(dtOnFire, nullptr, BURN_DAMAGE, 0);
 			}
@@ -1175,7 +1175,7 @@ void cEntity::TickBurning(cChunk & a_Chunk)
 		m_TicksSinceLastLavaDamage++;
 		if (m_TicksSinceLastLavaDamage >= LAVA_TICKS_PER_DAMAGE)
 		{
-			if (!m_IsFireproof)
+			if (!IsFireproof())
 			{
 				TakeDamage(dtLavaContact, nullptr, LAVA_DAMAGE, 0);
 			}
@@ -1196,7 +1196,7 @@ void cEntity::TickBurning(cChunk & a_Chunk)
 		m_TicksSinceLastFireDamage++;
 		if (m_TicksSinceLastFireDamage >= FIRE_TICKS_PER_DAMAGE)
 		{
-			if (!m_IsFireproof)
+			if (!IsFireproof())
 			{
 				TakeDamage(dtFireContact, nullptr, FIRE_DAMAGE, 0);
 			}

src/Entities/Entity.h

@@ -367,7 +367,7 @@ public:
 	/** Sets whether the entity is fireproof */
 	void SetIsFireproof(bool a_IsFireproof);
 	
-	bool IsFireproof(void) const { return m_IsFireproof; }
+	virtual bool IsFireproof(void) const { return m_IsFireproof; }
 	
 	/** Puts the entity on fire for the specified amount of ticks */
 	void StartBurning(int a_TicksLeftBurning);

src/Entities/FireChargeEntity.cpp

@@ -46,6 +46,9 @@ void cFireChargeEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_Hi
 	Destroy();
 	Explode(a_HitPos.Floor());
 	
-	// TODO: Some entities are immune to hits
-	a_EntityHit.StartBurning(5 * 20);  // 5 seconds of burning
+	if (!a_EntityHit.IsFireproof())
+	{
+		// TODO Damage Entity with 5 damage(from http://minecraft.gamepedia.com/Blaze#Blaze_fireball)
+		a_EntityHit.StartBurning(5 * 20);  // 5 seconds of burning
+	}
 }

src/Entities/Pawn.cpp

@@ -61,6 +61,15 @@ void cPawn::KilledBy(TakeDamageInfo & a_TDI)
 
 
 
+bool cPawn::IsFireproof(void) const
+{
+	return super::IsFireproof() || HasEntityEffect(cEntityEffect::effFireResistance);
+}
+
+
+
+
+
 void cPawn::AddEntityEffect(cEntityEffect::eType a_EffectType, int a_Duration, short a_Intensity, double a_DistanceModifier)
 {
 	// Check if the plugins allow the addition:
@@ -98,6 +107,15 @@ void cPawn::RemoveEntityEffect(cEntityEffect::eType a_EffectType)
 
 
 
+bool cPawn::HasEntityEffect(cEntityEffect::eType a_EffectType) const
+{
+	return m_EntityEffects.find(a_EffectType) != m_EntityEffects.end();
+}
+
+
+
+
+
 void cPawn::ClearEntityEffects()
 {
 	// Iterate through this entity's applied effects

src/Entities/Pawn.h

@@ -23,6 +23,8 @@ public:
 	virtual void Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk) override;
 	virtual void KilledBy(TakeDamageInfo & a_TDI) override;
 	
+	virtual bool IsFireproof(void) const override;
+	
 	// tolua_begin
 	
 	/** Applies an entity effect
@@ -39,6 +41,11 @@ public:
 	*/
 	void RemoveEntityEffect(cEntityEffect::eType a_EffectType);
 	
+	/** Returns true, if the entity effect is currently applied
+	@param a_EffectType The entity effect to check
+	*/
+	bool HasEntityEffect(cEntityEffect::eType a_EffectType) const;
+	
 	/** Removes all currently applied entity effects (used when drinking milk) */
 	void ClearEntityEffects(void);