9 files changed, 64 insertions, 119 deletions

diff --git a/src/Mobs/Blaze.cpp b/src/Mobs/Blaze.cpp
index d002e14e7..1fcf086d5 100644
--- a/src/Mobs/Blaze.cpp
+++ b/src/Mobs/Blaze.cpp
@@ -39,17 +39,11 @@ bool cBlaze::Attack(std::chrono::milliseconds a_Dt)
 		// Setting this higher gives us more wiggle room for attackrate
 		Vector3d Speed = GetLookVector() * 20;
 		Speed.y = Speed.y + 1;
-		cFireChargeEntity * FireCharge = new cFireChargeEntity(this, GetPosX(), GetPosY() + 1, GetPosZ(), Speed);
-		if (FireCharge == nullptr)
+		auto FireCharge = cpp14::make_unique<cFireChargeEntity>(this, GetPosX(), GetPosY() + 1, GetPosZ(), Speed);
+		if (!FireCharge->Initialize(std::move(FireCharge), *m_World))
 		{
 			return false;
 		}
-		if (!FireCharge->Initialize(*m_World))
-		{
-			delete FireCharge;
-			FireCharge = nullptr;
-			return false;
-		}
 		ResetAttackCooldown();
 		// ToDo: Shoot 3 fireballs instead of 1.
 		return true;
diff --git a/src/Mobs/Ghast.cpp b/src/Mobs/Ghast.cpp
index 0544255df..d40545b1d 100644
--- a/src/Mobs/Ghast.cpp
+++ b/src/Mobs/Ghast.cpp
@@ -39,17 +39,11 @@ bool cGhast::Attack(std::chrono::milliseconds a_Dt)
 		// Setting this higher gives us more wiggle room for attackrate
 		Vector3d Speed = GetLookVector() * 20;
 		Speed.y = Speed.y + 1;
-		cGhastFireballEntity * GhastBall = new cGhastFireballEntity(this, GetPosX(), GetPosY() + 1, GetPosZ(), Speed);
-		if (GhastBall == nullptr)
+		auto GhastBall = cpp14::make_unique<cGhastFireballEntity>(this, GetPosX(), GetPosY() + 1, GetPosZ(), Speed);
+		if (!GhastBall->Initialize(std::move(GhastBall), *m_World))
 		{
 			return false;
 		}
-		if (!GhastBall->Initialize(*m_World))
-		{
-			delete GhastBall;
-			GhastBall = nullptr;
-			return false;
-		}
 		ResetAttackCooldown();
 		return true;
 	}
diff --git a/src/Mobs/Monster.cpp b/src/Mobs/Monster.cpp
index 3b0fdd36c..738e5b983 100644
--- a/src/Mobs/Monster.cpp
+++ b/src/Mobs/Monster.cpp
@@ -123,7 +123,7 @@ cMonster::~cMonster()
 
 void cMonster::Destroyed()
 {
-	SetTarget(nullptr);  // Tell them we're no longer targeting them.
+	SetTarget(nullptr);
 	super::Destroyed();
 }
 
@@ -912,47 +912,26 @@ int cMonster::GetSpawnDelay(cMonster::eFamily a_MobFamily)
 
 
 
-
-/** Sets the target. */
-void cMonster::SetTarget (cPawn * a_NewTarget)
+void cMonster::SetTarget(cPawn * a_NewTarget)
 {
-	ASSERT((a_NewTarget == nullptr) || (IsTicking()));
-	if (m_Target == a_NewTarget)
-	{
-		return;
-	}
-	cPawn * OldTarget = m_Target;
-	m_Target = a_NewTarget;
+	ASSERT((a_NewTarget == nullptr) || IsTicking());
 
-	if (OldTarget != nullptr)
+	if (a_NewTarget == nullptr)
 	{
-		// Notify the old target that we are no longer targeting it.
-		OldTarget->NoLongerTargetingMe(this);
-	}
-
-	if (a_NewTarget != nullptr)
-	{
-		ASSERT(a_NewTarget->IsTicking());
-		// Notify the new target that we are now targeting it.
-		m_Target->TargetingMe(this);
+		m_Target = nullptr;
+		return;
 	}
 
+	ASSERT(a_NewTarget->IsTicking());
+	m_Target = a_NewTarget;
+	ASSERT(GetTarget() != nullptr);
 }
 
 
 
 
 
-void cMonster::UnsafeUnsetTarget()
-{
-	m_Target = nullptr;
-}
-
-
-
-
-
-cPawn * cMonster::GetTarget ()
+cPawn * cMonster::GetTarget()
 {
 	return m_Target;
 }
@@ -961,29 +940,25 @@ cPawn * cMonster::GetTarget ()
 
 
 
-cMonster * cMonster::NewMonsterFromType(eMonsterType a_MobType)
+std::unique_ptr<cMonster> cMonster::NewMonsterFromType(eMonsterType a_MobType)
 {
 	cFastRandom Random;
-	cMonster * toReturn = nullptr;
 
 	// Create the mob entity
 	switch (a_MobType)
 	{
 		case mtMagmaCube:
 		{
-			toReturn = new cMagmaCube(1 << Random.NextInt(3));  // Size 1, 2 or 4
-			break;
+			return cpp14::make_unique<cMagmaCube>(1 << Random.NextInt(3));  // Size 1, 2 or 4
 		}
 		case mtSlime:
 		{
-			toReturn = new cSlime(1 << Random.NextInt(3));  // Size 1, 2 or 4
-			break;
+			return cpp14::make_unique<cSlime>(1 << Random.NextInt(3));  // Size 1, 2 or 4
 		}
 		case mtSkeleton:
 		{
 			// TODO: Actual detection of spawning in Nether
-			toReturn = new cSkeleton((Random.NextInt(1) == 0) ? false : true);
-			break;
+			return cpp14::make_unique<cSkeleton>((Random.NextInt(1) == 0) ? false : true);
 		}
 		case mtVillager:
 		{
@@ -994,8 +969,7 @@ cMonster * cMonster::NewMonsterFromType(eMonsterType a_MobType)
 				VillagerType = 0;
 			}
 
-			toReturn = new cVillager(static_cast<cVillager::eVillagerType>(VillagerType));
-			break;
+			return cpp14::make_unique<cVillager>(static_cast<cVillager::eVillagerType>(VillagerType));
 		}
 		case mtHorse:
 		{
@@ -1011,42 +985,41 @@ cMonster * cMonster::NewMonsterFromType(eMonsterType a_MobType)
 				HorseType = 0;
 			}
 
-			toReturn = new cHorse(HorseType, HorseColor, HorseStyle, HorseTameTimes);
-			break;
+			return cpp14::make_unique<cHorse>(HorseType, HorseColor, HorseStyle, HorseTameTimes);
 		}
 
-		case mtBat:           toReturn = new cBat();                      break;
-		case mtBlaze:         toReturn = new cBlaze();                    break;
-		case mtCaveSpider:    toReturn = new cCaveSpider();               break;
-		case mtChicken:       toReturn = new cChicken();                  break;
-		case mtCow:           toReturn = new cCow();                      break;
-		case mtCreeper:       toReturn = new cCreeper();                  break;
-		case mtEnderDragon:   toReturn = new cEnderDragon();              break;
-		case mtEnderman:      toReturn = new cEnderman();                 break;
-		case mtGhast:         toReturn = new cGhast();                    break;
-		case mtGiant:         toReturn = new cGiant();                    break;
-		case mtGuardian:      toReturn = new cGuardian();                 break;
-		case mtIronGolem:     toReturn = new cIronGolem();                break;
-		case mtMooshroom:     toReturn = new cMooshroom();                break;
-		case mtOcelot:        toReturn = new cOcelot();                   break;
-		case mtPig:           toReturn = new cPig();                      break;
-		case mtRabbit:        toReturn = new cRabbit();                   break;
-		case mtSheep:         toReturn = new cSheep();                    break;
-		case mtSilverfish:    toReturn = new cSilverfish();               break;
-		case mtSnowGolem:     toReturn = new cSnowGolem();                break;
-		case mtSpider:        toReturn = new cSpider();                   break;
-		case mtSquid:         toReturn = new cSquid();                    break;
-		case mtWitch:         toReturn = new cWitch();                    break;
-		case mtWither:	      toReturn = new cWither();                   break;
-		case mtWolf:          toReturn = new cWolf();                     break;
-		case mtZombie:        toReturn = new cZombie(false);              break;  // TODO: Infected zombie parameter
-		case mtZombiePigman:  toReturn = new cZombiePigman();             break;
+		case mtBat:           return cpp14::make_unique<cBat>();
+		case mtBlaze:         return cpp14::make_unique<cBlaze>();
+		case mtCaveSpider:    return cpp14::make_unique<cCaveSpider>();
+		case mtChicken:       return cpp14::make_unique<cChicken>();
+		case mtCow:           return cpp14::make_unique<cCow>();
+		case mtCreeper:       return cpp14::make_unique < cCreeper>();
+		case mtEnderDragon:   return cpp14::make_unique<cEnderDragon>();
+		case mtEnderman:      return cpp14::make_unique<cEnderman>();
+		case mtGhast:         return cpp14::make_unique<cGhast>();
+		case mtGiant:         return cpp14::make_unique<cGiant>();
+		case mtGuardian:      return cpp14::make_unique<cGuardian>();
+		case mtIronGolem:     return cpp14::make_unique<cIronGolem>();
+		case mtMooshroom:     return cpp14::make_unique<cMooshroom>();
+		case mtOcelot:        return cpp14::make_unique<cOcelot>();
+		case mtPig:           return cpp14::make_unique<cPig>();
+		case mtRabbit:        return cpp14::make_unique<cRabbit>();
+		case mtSheep:         return cpp14::make_unique<cSheep>();
+		case mtSilverfish:    return cpp14::make_unique<cSilverfish>();
+		case mtSnowGolem:     return cpp14::make_unique<cSnowGolem>();
+		case mtSpider:        return cpp14::make_unique<cSpider>();
+		case mtSquid:         return cpp14::make_unique<cSquid>();
+		case mtWitch:         return cpp14::make_unique<cWitch>();
+		case mtWither:	      return cpp14::make_unique<cWither>();
+		case mtWolf:          return cpp14::make_unique<cWolf>();
+		case mtZombie:        return cpp14::make_unique<cZombie>(false);  // TODO: Infected zombie parameter
+		case mtZombiePigman:  return cpp14::make_unique<cZombiePigman>();
 		default:
 		{
 			ASSERT(!"Unhandled mob type whilst trying to spawn mob!");
+			return nullptr;
 		}
 	}
-	return toReturn;
 }
 
 
diff --git a/src/Mobs/Monster.h b/src/Mobs/Monster.h
index 2155a4a7c..62c2a3564 100644
--- a/src/Mobs/Monster.h
+++ b/src/Mobs/Monster.h
@@ -161,20 +161,16 @@ public:
 	// tolua_end
 
 	/** Sets the target that this mob will chase. Pass a nullptr to unset. */
-	void SetTarget (cPawn * a_NewTarget);
-
-	/** Unset the target without notifying the target entity. Do not use this, use SetTarget(nullptr) instead.
-	This is only used by cPawn internally. */
-	void UnsafeUnsetTarget();
+	void SetTarget(cPawn * a_NewTarget);
 
 	/** Returns the current target. */
-	cPawn * GetTarget ();
+	cPawn * GetTarget();
 
 	/** Creates a new object of the specified mob.
 	a_MobType is the type of the mob to be created
 	Asserts and returns null if mob type is not specified
 	*/
-	static cMonster * NewMonsterFromType(eMonsterType a_MobType);
+	static std::unique_ptr<cMonster> NewMonsterFromType(eMonsterType a_MobType);
 
 protected:
 
@@ -200,7 +196,11 @@ protected:
 	bool ReachedFinalDestination(void) { return ((m_FinalDestination - GetPosition()).SqrLength() < WAYPOINT_RADIUS * WAYPOINT_RADIUS); }
 
 	/** Returns whether or not the target is close enough for attack. */
-	bool TargetIsInRange(void) { ASSERT(m_Target != nullptr); return ((m_Target->GetPosition() - GetPosition()).SqrLength() < (m_AttackRange * m_AttackRange)); }
+	bool TargetIsInRange(void)
+	{
+		ASSERT(GetTarget() != nullptr);
+		return ((GetTarget()->GetPosition() - GetPosition()).SqrLength() < (m_AttackRange * m_AttackRange));
+	}
 
 	/** Returns if a monster can reach a given height by jumping. */
 	inline bool DoesPosYRequireJump(int a_PosY)
@@ -267,7 +267,9 @@ protected:
 	void AddRandomWeaponDropItem(cItems & a_Drops, unsigned int a_LootingLevel);
 
 private:
-	/** A pointer to the entity this mobile is aiming to reach */
+	/** A pointer to the entity this mobile is aiming to reach.
+	The validity of this pointer SHALL be guaranteed by the pointee;
+	it MUST be reset when the pointee changes worlds or is destroyed. */
 	cPawn * m_Target;
 
 } ;  // tolua_export
diff --git a/src/Mobs/Skeleton.cpp b/src/Mobs/Skeleton.cpp
index 7697f1279..01a4c54fb 100644
--- a/src/Mobs/Skeleton.cpp
+++ b/src/Mobs/Skeleton.cpp
@@ -57,17 +57,11 @@ bool cSkeleton::Attack(std::chrono::milliseconds a_Dt)
 		Vector3d Inaccuracy = Vector3d(Random.NextFloat(0.5) - 0.25, Random.NextFloat(0.5) - 0.25, Random.NextFloat(0.5) - 0.25);
 		Vector3d Speed = (GetTarget()->GetPosition() + Inaccuracy - GetPosition()) * 5;
 		Speed.y = Speed.y - 1 + Random.NextInt(3);
-		cArrowEntity * Arrow = new cArrowEntity(this, GetPosX(), GetPosY() + 1, GetPosZ(), Speed);
-		if (Arrow == nullptr)
+		auto Arrow = cpp14::make_unique<cArrowEntity>(this, GetPosX(), GetPosY() + 1, GetPosZ(), Speed);
+		if (!Arrow->Initialize(std::move(Arrow), *m_World))
 		{
 			return false;
 		}
-		if (!Arrow->Initialize(*m_World))
-		{
-			delete Arrow;
-			Arrow = nullptr;
-			return false;
-		}
 		ResetAttackCooldown();
 
 		return true;
diff --git a/src/Mobs/Slime.cpp b/src/Mobs/Slime.cpp
index 316f68523..e4ef069ec 100644
--- a/src/Mobs/Slime.cpp
+++ b/src/Mobs/Slime.cpp
@@ -78,10 +78,10 @@ void cSlime::KilledBy(TakeDamageInfo & a_TDI)
 			double AddX = (i % 2 - 0.5) * m_Size / 4.0;
 			double AddZ = (i / 2 - 0.5) * m_Size / 4.0;
 
-			cSlime * NewSlime = new cSlime(m_Size / 2);
+			auto NewSlime = cpp14::make_unique<cSlime>(m_Size / 2);
 			NewSlime->SetPosition(GetPosX() + AddX, GetPosY() + 0.5, GetPosZ() + AddZ);
 			NewSlime->SetYaw(Random.NextFloat(1.0f) * 360.0f);
-			m_World->SpawnMobFinalize(NewSlime);
+			m_World->SpawnMobFinalize(std::move(NewSlime));
 		}
 	}
 	super::KilledBy(a_TDI);
diff --git a/src/Mobs/Wither.cpp b/src/Mobs/Wither.cpp
index 6ef81ce1b..fa9cb56f4 100644
--- a/src/Mobs/Wither.cpp
+++ b/src/Mobs/Wither.cpp
@@ -15,6 +15,7 @@ cWither::cWither(void) :
 	m_WitherInvulnerableTicks(220)
 {
 	SetMaxHealth(300);
+	SetHealth(GetMaxHealth() / 3);
 }
 
 
@@ -30,18 +31,6 @@ bool cWither::IsArmored(void) const
 
 
 
-bool cWither::Initialize(cWorld & a_World)
-{
-	// Set health before BroadcastSpawnEntity()
-	SetHealth(GetMaxHealth() / 3);
-
-	return super::Initialize(a_World);
-}
-
-
-
-
-
 bool cWither::DoTakeDamage(TakeDamageInfo & a_TDI)
 {
 	if (a_TDI.DamageType == dtDrowning)
diff --git a/src/Mobs/Wither.h b/src/Mobs/Wither.h
index b430588c9..5f6ec607c 100644
--- a/src/Mobs/Wither.h
+++ b/src/Mobs/Wither.h
@@ -25,7 +25,6 @@ public:
 	bool IsArmored(void) const;
 
 	// cEntity overrides
-	virtual bool Initialize(cWorld & a_World) override;
 	virtual void GetDrops(cItems & a_Drops, cEntity * a_Killer = nullptr) override;
 	virtual bool DoTakeDamage(TakeDamageInfo & a_TDI) override;
 	virtual void Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk) override;
diff --git a/src/Mobs/Wolf.cpp b/src/Mobs/Wolf.cpp
index da21468ca..ceaa41cfe 100644
--- a/src/Mobs/Wolf.cpp
+++ b/src/Mobs/Wolf.cpp
@@ -361,7 +361,7 @@ void cWolf::TickFollowPlayer()
 			if (!Callback.OwnerFlying)
 			{
 				Callback.OwnerPos.y = FindFirstNonAirBlockPosition(Callback.OwnerPos.x, Callback.OwnerPos.z);
-				TeleportToCoords(Callback.OwnerPos.x, Callback.OwnerPos.y, Callback.OwnerPos.z);
+				TeleportToCoords(Callback.OwnerPos);
 				SetTarget(nullptr);
 			}
 		}