15 files changed, 382 insertions, 191 deletions

diff --git a/src/Entities/ArrowEntity.cpp b/src/Entities/ArrowEntity.cpp
index 4727f67a9..d59088e72 100644
--- a/src/Entities/ArrowEntity.cpp
+++ b/src/Entities/ArrowEntity.cpp
@@ -72,26 +72,24 @@ bool cArrowEntity::CanPickup(const cPlayer & a_Player) const
 
 
 void cArrowEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace)
-{
-	if (a_HitFace == BLOCK_FACE_NONE) { return; }
-	
-	super::OnHitSolidBlock(a_HitPos, a_HitFace);
-	int a_X = (int)a_HitPos.x, a_Y = (int)a_HitPos.y, a_Z = (int)a_HitPos.z;
-	
-	switch (a_HitFace)
+{	
+	if (GetSpeed().EqualsEps(Vector3d(0, 0, 0), 0.0000001))
 	{
-		case BLOCK_FACE_XM: // Strangely, bounding boxes / block tracers return the actual block for these two directions, so AddFace not needed
-		case BLOCK_FACE_YM:
-		{
-			break;
-		}
-		default: AddFaceDirection(a_X, a_Y, a_Z, a_HitFace, true);
+		SetSpeed(GetLookVector().NormalizeCopy() * 0.1); // Ensure that no division by zero happens later
 	}
-	
-	m_HitBlockPos = Vector3i(a_X, a_Y, a_Z);
+
+	Vector3d Hit = a_HitPos;
+	Vector3d SinkMovement = (GetSpeed() / 800);
+	Hit += (SinkMovement * 0.01) / SinkMovement.Length(); // Make arrow sink into block a centimetre so it lodges (but not to far so it goes black clientside)
+
+	super::OnHitSolidBlock(Hit, a_HitFace);
+	Vector3i BlockHit = Hit.Floor();
+
+	int X = BlockHit.x, Y = BlockHit.y, Z = BlockHit.z;
+	m_HitBlockPos = Vector3i(X, Y, Z);
 	
 	// Broadcast arrow hit sound
-	m_World->BroadcastSoundEffect("random.bowhit", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+	m_World->BroadcastSoundEffect("random.bowhit", X * 8, Y * 8, Z * 8, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 }
 
 
@@ -99,13 +97,7 @@ void cArrowEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFa
 
 
 void cArrowEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
-{
-	if (!a_EntityHit.IsMob() && !a_EntityHit.IsMinecart() && !a_EntityHit.IsPlayer() && !a_EntityHit.IsBoat())
-	{
-		// Not an entity that interacts with an arrow
-		return;
-	}
-	
+{	
 	int Damage = (int)(GetSpeed().Length() / 20 * m_DamageCoeff + 0.5);
 	if (m_IsCritical)
 	{
@@ -114,14 +106,7 @@ void cArrowEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
 	a_EntityHit.TakeDamage(dtRangedAttack, this, Damage, 1);
 	
 	// Broadcast successful hit sound
-	m_World->BroadcastSoundEffect(
-		"random.successful_hit",
-		(int)std::floor(GetPosX() * 8.0),
-		(int)std::floor(GetPosY() * 8.0),
-		(int)std::floor(GetPosZ() * 8.0),
-		0.5f,
-		0.75f + ((float)((GetUniqueID() * 23) % 32)) / 64.0f
-	);
+	GetWorld()->BroadcastSoundEffect("random.successful_hit", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 	
 	Destroy();
 }
@@ -144,21 +129,10 @@ void cArrowEntity::CollectedBy(cPlayer * a_Dest)
 				return;
 			}
 		}
-		
-		// TODO: BroadcastCollectPickup needs a cPickup, which we don't have
-		// m_World->BroadcastCollectPickup(*this, *a_Dest);
 
+		GetWorld()->BroadcastCollectEntity(*this, *a_Dest);
+		GetWorld()->BroadcastSoundEffect("random.pop", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		m_bIsCollected = true;
-
-		cFastRandom Random;
-		m_World->BroadcastSoundEffect(
-			"random.pop",
-			(int)std::floor(GetPosX() * 8.0),
-			(int)std::floor(GetPosY() * 8),
-			(int)std::floor(GetPosZ() * 8),
-			0.2F,
-			((Random.NextFloat(1.0F) - Random.NextFloat(1.0F)) * 0.7F + 1.0F) * 2.0F
-		);
 	}
 }
 
@@ -194,7 +168,7 @@ void cArrowEntity::Tick(float a_Dt, cChunk & a_Chunk)
 		
 		if (!m_HasTeleported) // Sent a teleport already, don't do again
 		{
-			if (m_HitGroundTimer > 1000.f) // Send after a second, could be less, but just in case
+			if (m_HitGroundTimer > 500.f) // Send after half a second, could be less, but just in case
 			{
 				m_World->BroadcastTeleportEntity(*this);
 				m_HasTeleported = true;
diff --git a/src/Entities/ArrowEntity.h b/src/Entities/ArrowEntity.h
index 1fe3032ee..76cb24449 100644
--- a/src/Entities/ArrowEntity.h
+++ b/src/Entities/ArrowEntity.h
@@ -58,8 +58,14 @@ public:
 	
 	/// Sets the IsCritical flag
 	void SetIsCritical(bool a_IsCritical) { m_IsCritical = a_IsCritical; }
+
+	/** Gets the block arrow is in */
+	Vector3i GetBlockHit(void) const { return m_HitBlockPos; }
 	
 	// tolua_end
+
+	/** Sets the block arrow is in. To be used by the MCA loader only! */
+	void SetBlockHit(const Vector3i & a_BlockHit) { m_HitBlockPos = a_BlockHit; }
 	
 protected:
 	
diff --git a/src/Entities/Entity.cpp b/src/Entities/Entity.cpp
index 2b256e766..26823924f 100644
--- a/src/Entities/Entity.cpp
+++ b/src/Entities/Entity.cpp
@@ -1479,8 +1479,7 @@ void cEntity::SetWidth(double a_Width)
 
 void cEntity::AddPosX(double a_AddPosX)
 {
-	m_Pos.x += a_AddPosX;
-	
+	m_Pos.x += a_AddPosX;	
 }
 
 
@@ -1488,8 +1487,7 @@ void cEntity::AddPosX(double a_AddPosX)
 
 void cEntity::AddPosY(double a_AddPosY)
 {
-	m_Pos.y += a_AddPosY;
-	
+	m_Pos.y += a_AddPosY;	
 }
 
 
@@ -1497,8 +1495,7 @@ void cEntity::AddPosY(double a_AddPosY)
 
 void cEntity::AddPosZ(double a_AddPosZ)
 {
-	m_Pos.z += a_AddPosZ;
-	
+	m_Pos.z += a_AddPosZ;	
 }
 
 
@@ -1508,8 +1505,7 @@ void cEntity::AddPosition(double a_AddPosX, double a_AddPosY, double a_AddPosZ)
 {
 	m_Pos.x += a_AddPosX;
 	m_Pos.y += a_AddPosY;
-	m_Pos.z += a_AddPosZ;
-	
+	m_Pos.z += a_AddPosZ;	
 }
 
 
diff --git a/src/Entities/Entity.h b/src/Entities/Entity.h
index 2df66e353..f4080f8aa 100644
--- a/src/Entities/Entity.h
+++ b/src/Entities/Entity.h
@@ -237,9 +237,9 @@ public:
 	void AddPosY    (double a_AddPosY);
 	void AddPosZ    (double a_AddPosZ);
 	void AddPosition(double a_AddPosX, double a_AddPosY, double a_AddPosZ);
-	void AddPosition(const Vector3d & a_AddPos) { AddPosition(a_AddPos.x,a_AddPos.y,a_AddPos.z);}
+	void AddPosition(const Vector3d & a_AddPos) { AddPosition(a_AddPos.x, a_AddPos.y, a_AddPos.z); }
 	void AddSpeed   (double a_AddSpeedX, double a_AddSpeedY, double a_AddSpeedZ);
-	void AddSpeed   (const Vector3d & a_AddSpeed) { AddSpeed(a_AddSpeed.x,a_AddSpeed.y,a_AddSpeed.z);}
+	void AddSpeed   (const Vector3d & a_AddSpeed) { AddSpeed(a_AddSpeed.x, a_AddSpeed.y, a_AddSpeed.z); }
 	void AddSpeedX  (double a_AddSpeedX);
 	void AddSpeedY  (double a_AddSpeedY);
 	void AddSpeedZ  (double a_AddSpeedZ);
diff --git a/src/Entities/Pickup.cpp b/src/Entities/Pickup.cpp
index 10b6bbd5c..24fa591da 100644
--- a/src/Entities/Pickup.cpp
+++ b/src/Entities/Pickup.cpp
@@ -224,7 +224,7 @@ bool cPickup::CollectedBy(cPlayer * a_Dest)
 		}
 
 		m_Item.m_ItemCount -= NumAdded;
-		m_World->BroadcastCollectPickup(*this, *a_Dest);
+		m_World->BroadcastCollectEntity(*this, *a_Dest);
 		// Also send the "pop" sound effect with a somewhat random pitch (fast-random using EntityID ;)
 		m_World->BroadcastSoundEffect("random.pop",(int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		if (m_Item.m_ItemCount <= 0)
diff --git a/src/Entities/Player.cpp b/src/Entities/Player.cpp
index dbb8cd26c..944ed643e 100644
--- a/src/Entities/Player.cpp
+++ b/src/Entities/Player.cpp
@@ -34,52 +34,48 @@
 
 
 
-cPlayer::cPlayer(cClientHandle* a_Client, const AString & a_PlayerName)
-	: super(etPlayer, 0.6, 1.8)
-	, m_bVisible(true)
-	, m_FoodLevel(MAX_FOOD_LEVEL)
-	, m_FoodSaturationLevel(5.0)
-	, m_FoodTickTimer(0)
-	, m_FoodExhaustionLevel(0.0)
-	, m_FoodPoisonedTicksRemaining(0)
-	, m_LastJumpHeight(0)
-	, m_LastGroundHeight(0)
-	, m_bTouchGround(false)
-	, m_Stance(0.0)
-	, m_Inventory(*this)
-	, m_EnderChestContents(9, 3)
-	, m_CurrentWindow(NULL)
-	, m_InventoryWindow(NULL)
-	, m_Color('-')
-	, m_GameMode(eGameMode_NotSet)
-	, m_IP("")
-	, m_ClientHandle(a_Client)
-	, m_NormalMaxSpeed(1.0)
-	, m_SprintingMaxSpeed(1.3)
-	, m_FlyingMaxSpeed(1.0)
-	, m_IsCrouched(false)
-	, m_IsSprinting(false)
-	, m_IsFlying(false)
-	, m_IsSwimming(false)
-	, m_IsSubmerged(false)
-	, m_IsFishing(false)
-	, m_CanFly(false)
-	, m_EatingFinishTick(-1)
-	, m_LifetimeTotalXp(0)
-	, m_CurrentXp(0)
-	, m_bDirtyExperience(false)
-	, m_IsChargingBow(false)
-	, m_BowCharge(0)
-	, m_FloaterID(-1)
-	, m_Team(NULL)
-	, m_TicksUntilNextSave(PLAYER_INVENTORY_SAVE_INTERVAL)
-	, m_bIsTeleporting(false)
-{
-	LOGD("Created a player object for \"%s\" @ \"%s\" at %p, ID %d", 
-		a_PlayerName.c_str(), a_Client->GetIPString().c_str(),
-		this, GetUniqueID()
-	);
-	
+cPlayer::cPlayer(cClientHandle* a_Client, const AString & a_PlayerName) :
+	super(etPlayer, 0.6, 1.8),
+	m_bVisible(true),
+	m_FoodLevel(MAX_FOOD_LEVEL),
+	m_FoodSaturationLevel(5.0),
+	m_FoodTickTimer(0),
+	m_FoodExhaustionLevel(0.0),
+	m_FoodPoisonedTicksRemaining(0),
+	m_LastJumpHeight(0),
+	m_LastGroundHeight(0),
+	m_bTouchGround(false),
+	m_Stance(0.0),
+	m_Inventory(*this),
+	m_EnderChestContents(9, 3),
+	m_CurrentWindow(NULL),
+	m_InventoryWindow(NULL),
+	m_Color('-'),
+	m_GameMode(eGameMode_NotSet),
+	m_IP(""),
+	m_ClientHandle(a_Client),
+	m_NormalMaxSpeed(1.0),
+	m_SprintingMaxSpeed(1.3),
+	m_FlyingMaxSpeed(1.0),
+	m_IsCrouched(false),
+	m_IsSprinting(false),
+	m_IsFlying(false),
+	m_IsSwimming(false),
+	m_IsSubmerged(false),
+	m_IsFishing(false),
+	m_CanFly(false),
+	m_EatingFinishTick(-1),
+	m_LifetimeTotalXp(0),
+	m_CurrentXp(0),
+	m_bDirtyExperience(false),
+	m_IsChargingBow(false),
+	m_BowCharge(0),
+	m_FloaterID(-1),
+	m_Team(NULL),
+	m_TicksUntilNextSave(PLAYER_INVENTORY_SAVE_INTERVAL),
+	m_bIsTeleporting(false),
+	m_UUID((a_Client != NULL) ? a_Client->GetUUID() : "")
+{
 	m_InventoryWindow = new cInventoryWindow(*this);
 	m_CurrentWindow = m_InventoryWindow;
 	m_InventoryWindow->OpenedByPlayer(*this);
@@ -1690,53 +1686,98 @@ void cPlayer::LoadPermissionsFromDisk()
 
 
 
-bool cPlayer::LoadFromDisk()
+
+bool cPlayer::LoadFromDisk(void)
 {
 	LoadPermissionsFromDisk();
 
-	AString SourceFile;
-	Printf(SourceFile, "players/%s.json", GetName().c_str() );
+	// Load from the UUID file:
+	if (LoadFromFile(GetUUIDFileName(m_UUID)))
+	{
+		return true;
+	}
+	
+	// Load from the offline UUID file, if allowed:
+	AString OfflineUUID = cClientHandle::GenerateOfflineUUID(GetName());
+	if (cRoot::Get()->GetServer()->ShouldLoadOfflinePlayerData())
+	{
+		if (LoadFromFile(GetUUIDFileName(OfflineUUID)))
+		{
+			return true;
+		}
+	}
+	
+	// Load from the old-style name-based file, if allowed:
+	if (cRoot::Get()->GetServer()->ShouldLoadNamedPlayerData())
+	{
+		AString OldStyleFileName = Printf("players/%s.json", GetName().c_str());
+		if (LoadFromFile(OldStyleFileName))
+		{
+			// Save in new format and remove the old file
+			if (SaveToDisk())
+			{
+				cFile::Delete(OldStyleFileName);
+			}
+			return true;
+		}
+	}
+	
+	// None of the files loaded successfully
+	LOG("Player data file not found for %s (%s, offline %s), will be reset to defaults.",
+		GetName().c_str(), m_UUID.c_str(), OfflineUUID.c_str()
+	);
+	return false;
+}
+
+
+
+
 
+bool cPlayer::LoadFromFile(const AString & a_FileName)
+{
+	// Load the data from the file:
 	cFile f;
-	if (!f.Open(SourceFile, cFile::fmRead))
+	if (!f.Open(a_FileName, cFile::fmRead))
 	{
 		// This is a new player whom we haven't seen yet, bail out, let them have the defaults
 		return false;
 	}
-
 	AString buffer;
 	if (f.ReadRestOfFile(buffer) != f.GetSize())
 	{
-		LOGWARNING("Cannot read player data from file \"%s\"", SourceFile.c_str()); 
+		LOGWARNING("Cannot read player data from file \"%s\"", a_FileName.c_str());
 		return false;
 	}
-	f.Close(); //cool kids play nice
+	f.Close();
 
+	// Parse the JSON format:
 	Json::Value root;
 	Json::Reader reader;
 	if (!reader.parse(buffer, root, false))
 	{
-		LOGWARNING("Cannot parse player data in file \"%s\", player will be reset", SourceFile.c_str());
+		LOGWARNING("Cannot parse player data in file \"%s\"", a_FileName.c_str());
+		return false;
 	}
 
+	// Load the player data:
 	Json::Value & JSON_PlayerPosition = root["position"];
 	if (JSON_PlayerPosition.size() == 3)
 	{
-		SetPosX(JSON_PlayerPosition[(unsigned int)0].asDouble());
-		SetPosY(JSON_PlayerPosition[(unsigned int)1].asDouble());
-		SetPosZ(JSON_PlayerPosition[(unsigned int)2].asDouble());
+		SetPosX(JSON_PlayerPosition[(unsigned)0].asDouble());
+		SetPosY(JSON_PlayerPosition[(unsigned)1].asDouble());
+		SetPosZ(JSON_PlayerPosition[(unsigned)2].asDouble());
 		m_LastPos = GetPosition();
 	}
 
 	Json::Value & JSON_PlayerRotation = root["rotation"];
 	if (JSON_PlayerRotation.size() == 3)
 	{
-		SetYaw      ((float)JSON_PlayerRotation[(unsigned int)0].asDouble());
-		SetPitch    ((float)JSON_PlayerRotation[(unsigned int)1].asDouble());
-		SetRoll     ((float)JSON_PlayerRotation[(unsigned int)2].asDouble());
+		SetYaw      ((float)JSON_PlayerRotation[(unsigned)0].asDouble());
+		SetPitch    ((float)JSON_PlayerRotation[(unsigned)1].asDouble());
+		SetRoll     ((float)JSON_PlayerRotation[(unsigned)2].asDouble());
 	}
 
-	m_Health              = root.get("health", 0).asInt();
+	m_Health              = root.get("health",         0).asInt();
 	m_AirLevel            = root.get("air",            MAX_AIR_LEVEL).asInt();
 	m_FoodLevel           = root.get("food",           MAX_FOOD_LEVEL).asInt();
 	m_FoodSaturationLevel = root.get("foodSaturation", MAX_FOOD_LEVEL).asDouble();
@@ -1763,8 +1804,8 @@ bool cPlayer::LoadFromDisk()
 	cStatSerializer StatSerializer(cRoot::Get()->GetDefaultWorld()->GetName(), GetName(), &m_Stats);
 	StatSerializer.Load();
 	
-	LOGD("Player \"%s\" was read from file, spawning at {%.2f, %.2f, %.2f} in world \"%s\"",
-		GetName().c_str(), GetPosX(), GetPosY(), GetPosZ(), m_LoadedWorldName.c_str()
+	LOGD("Player \"%s\" was read from file \"%s\", spawning at {%.2f, %.2f, %.2f} in world \"%s\"",
+		GetName().c_str(), a_FileName.c_str(), GetPosX(), GetPosY(), GetPosZ(), m_LoadedWorldName.c_str()
 	);
 	
 	return true;
@@ -1777,6 +1818,7 @@ bool cPlayer::LoadFromDisk()
 bool cPlayer::SaveToDisk()
 {
 	cFile::CreateFolder(FILE_IO_PREFIX + AString("players"));
+	cFile::CreateFolder(FILE_IO_PREFIX + AString("players/") + m_UUID.substr(0, 2));
 
 	// create the JSON data
 	Json::Value JSON_PlayerPosition;
@@ -1808,33 +1850,45 @@ bool cPlayer::SaveToDisk()
 	root["foodSaturation"]      = m_FoodSaturationLevel;
 	root["foodTickTimer"]       = m_FoodTickTimer;
 	root["foodExhaustion"]      = m_FoodExhaustionLevel;
-	root["world"]               = GetWorld()->GetName();
 	root["isflying"]            = IsFlying();
-
-	if (m_GameMode == GetWorld()->GetGameMode())
+	root["lastknownname"]       = GetName();
+	if (m_World != NULL)
 	{
-		root["gamemode"] = (int) eGameMode_NotSet;
+		root["world"] = m_World->GetName();
+		if (m_GameMode == m_World->GetGameMode())
+		{
+			root["gamemode"] = (int) eGameMode_NotSet;
+		}
+		else
+		{
+			root["gamemode"] = (int) m_GameMode;
+		}
 	}
 	else
 	{
-		root["gamemode"] = (int) m_GameMode;
+		// This happens if the player is saved to new format after loading from the old format
+		root["world"]    = m_LoadedWorldName;
+		root["gamemode"] = (int) eGameMode_NotSet;
 	}
 
 	Json::StyledWriter writer;
 	std::string JsonData = writer.write(root);
 
-	AString SourceFile;
-	Printf(SourceFile, "players/%s.json", GetName().c_str() );
+	AString SourceFile = GetUUIDFileName(m_UUID);
 
 	cFile f;
 	if (!f.Open(SourceFile, cFile::fmWrite))
 	{
-		LOGERROR("ERROR WRITING PLAYER \"%s\" TO FILE \"%s\" - cannot open file", GetName().c_str(), SourceFile.c_str());
+		LOGWARNING("Error writing player \"%s\" to file \"%s\" - cannot open file. Player will lose their progress.",
+			GetName().c_str(), SourceFile.c_str()
+		);
 		return false;
 	}
 	if (f.Write(JsonData.c_str(), JsonData.size()) != (int)JsonData.size())
 	{
-		LOGERROR("ERROR WRITING PLAYER JSON TO FILE \"%s\"", SourceFile.c_str()); 
+		LOGWARNING("Error writing player \"%s\" to file \"%s\" - cannot save data. Player will lose their progress. ",
+			GetName().c_str(), SourceFile.c_str()
+		); 
 		return false;
 	}
 
@@ -1843,7 +1897,7 @@ bool cPlayer::SaveToDisk()
 	cStatSerializer StatSerializer(cRoot::Get()->GetDefaultWorld()->GetName(), GetName(), &m_Stats);
 	if (!StatSerializer.Save())
 	{
-		LOGERROR("Could not save stats for player %s", GetName().c_str());
+		LOGWARNING("Could not save stats for player %s", GetName().c_str());
 		return false;
 	}
 
@@ -2156,3 +2210,19 @@ void cPlayer::Detach()
 
 
 
+
+AString cPlayer::GetUUIDFileName(const AString & a_UUID)
+{
+	ASSERT(a_UUID.size() == 36);
+	
+	AString res("players/");
+	res.append(a_UUID, 0, 2);
+	res.push_back('/');
+	res.append(a_UUID, 2, AString::npos);
+	res.append(".json");
+	return res;
+}
+
+
+
+
diff --git a/src/Entities/Player.h b/src/Entities/Player.h
index f247ac2f9..8f9b46e0f 100644
--- a/src/Entities/Player.h
+++ b/src/Entities/Player.h
@@ -41,6 +41,7 @@ public:
 	
 
 	cPlayer(cClientHandle * a_Client, const AString & a_PlayerName);
+	
 	virtual ~cPlayer();
 
 	virtual void SpawnOn(cClientHandle & a_Client) override;
@@ -337,7 +338,15 @@ public:
 	bool MoveToWorld(const char * a_WorldName);  // tolua_export
 
 	bool SaveToDisk(void);
+	
+	/** Loads the player data from the disk file.
+	Returns true on success, false on failure. */
 	bool LoadFromDisk(void);
+	
+	/** Loads the player data from the specified file.
+	Returns true on success, false on failure. */
+	bool LoadFromFile(const AString & a_FileName);
+	
 	void LoadPermissionsFromDisk(void);											// tolua_export
 
 	const AString & GetLoadedWorldName() { return m_LoadedWorldName; }
@@ -519,6 +528,24 @@ protected:
 
 	cStatManager m_Stats;
 
+	/** Flag representing whether the player is currently in a bed
+	Set by a right click on unoccupied bed, unset by a time fast forward or teleport */
+	bool m_bIsInBed;
+
+	/** How long till the player's inventory will be saved
+	Default save interval is #defined in PLAYER_INVENTORY_SAVE_INTERVAL */
+	unsigned int m_TicksUntilNextSave;
+
+	/** Flag used by food handling system to determine whether a teleport has just happened
+	Will not apply food penalties if found to be true; will set to false after processing
+	*/
+	bool m_bIsTeleporting;
+	
+	/** The UUID of the player, as read from the ClientHandle.
+	If no ClientHandle is given, the UUID is initialized to empty. */
+	AString m_UUID;
+
+
 	/** Sets the speed and sends it to the client, so that they are forced to move so. */
 	virtual void DoSetSpeed(double a_SpeedX, double a_SpeedY, double a_SpeedZ) override;
 
@@ -545,19 +572,9 @@ protected:
 	/** Adds food exhaustion based on the difference between Pos and LastPos, sprinting status and swimming (in water block) */
 	void ApplyFoodExhaustionFromMovement();
 
-	/** Flag representing whether the player is currently in a bed
-	Set by a right click on unoccupied bed, unset by a time fast forward or teleport */
-	bool m_bIsInBed;
-
-	/** How long till the player's inventory will be saved
-	Default save interval is #defined in PLAYER_INVENTORY_SAVE_INTERVAL */
-	unsigned int m_TicksUntilNextSave;
-
-	/** Flag used by food handling system to determine whether a teleport has just happened
-	Will not apply food penalties if found to be true; will set to false after processing
-	*/
-	bool m_bIsTeleporting;
-
+	/** Returns the filename for the player data based on the UUID given.
+	This can be used both for online and offline UUIDs. */
+	AString GetUUIDFileName(const AString & a_UUID);
 } ; // tolua_export
 
 
diff --git a/src/Entities/ProjectileEntity.cpp b/src/Entities/ProjectileEntity.cpp
index 95c494569..0bb34019e 100644
--- a/src/Entities/ProjectileEntity.cpp
+++ b/src/Entities/ProjectileEntity.cpp
@@ -21,6 +21,7 @@
 #include "FireChargeEntity.h"
 #include "FireworkEntity.h"
 #include "GhastFireballEntity.h"
+#include "Player.h"
 
 
 
@@ -67,16 +68,17 @@ protected:
 		
 		if (cBlockInfo::IsSolid(a_BlockType))
 		{
-			// The projectile hit a solid block
-			// Calculate the exact hit coords:
-			cBoundingBox bb(a_BlockX, a_BlockX + 1, a_BlockY, a_BlockY + 1, a_BlockZ, a_BlockZ + 1);
-			Vector3d Line1 = m_Projectile->GetPosition();
-			Vector3d Line2 = Line1 + m_Projectile->GetSpeed();
-			double LineCoeff = 0;
-			eBlockFace Face;
-			if (bb.CalcLineIntersection(Line1, Line2, LineCoeff, Face))
+			// The projectile hit a solid block, calculate the exact hit coords:
+			cBoundingBox bb(a_BlockX, a_BlockX + 1, a_BlockY, a_BlockY + 1, a_BlockZ, a_BlockZ + 1);  // Bounding box of the block hit
+			const Vector3d LineStart = m_Projectile->GetPosition();  // Start point for the imaginary line that goes through the block hit
+			const Vector3d LineEnd = LineStart + m_Projectile->GetSpeed();  // End point for the imaginary line that goes through the block hit
+			double LineCoeff = 0;  // Used to calculate where along the line an intersection with the bounding box occurs
+			eBlockFace Face;  // Face hit
+
+			if (bb.CalcLineIntersection(LineStart, LineEnd, LineCoeff, Face))
 			{
-				Vector3d Intersection = Line1 + m_Projectile->GetSpeed() * LineCoeff;
+				Vector3d Intersection = LineStart + m_Projectile->GetSpeed() * LineCoeff;  // Point where projectile goes into the hit block
+
 				if (cPluginManager::Get()->CallHookProjectileHitBlock(*m_Projectile, a_BlockX, a_BlockY, a_BlockZ, Face, &Intersection))
 				{
 					return false;
@@ -140,7 +142,7 @@ public:
 	{
 		if (
 			(a_Entity == m_Projectile) ||          // Do not check collisions with self
-			(a_Entity == m_Projectile->GetCreator())  // Do not check whoever shot the projectile
+			(a_Entity->GetUniqueID() == m_Projectile->GetCreatorUniqueID())  // Do not check whoever shot the projectile
 		)
 		{
 			// TODO: Don't check creator only for the first 5 ticks
@@ -161,7 +163,12 @@ public:
 			return false;
 		}
 
-		// TODO: Some entities don't interact with the projectiles (pickups, falling blocks)
+		if (!a_Entity->IsMob() && !a_Entity->IsMinecart() && !a_Entity->IsPlayer() && !a_Entity->IsBoat())
+		{
+			// Not an entity that interacts with a projectile
+			return false;
+		}
+
 		if (cPluginManager::Get()->CallHookProjectileHitEntity(*m_Projectile, *a_Entity))
 		{
 			// A plugin disagreed.
@@ -209,7 +216,10 @@ protected:
 cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, double a_Width, double a_Height) :
 	super(etProjectile, a_X, a_Y, a_Z, a_Width, a_Height),
 	m_ProjectileKind(a_Kind),
-	m_Creator(a_Creator),
+	m_CreatorData(
+		((a_Creator != NULL) ? a_Creator->GetUniqueID() : -1),
+		((a_Creator != NULL) ? (a_Creator->IsPlayer() ? ((cPlayer *)a_Creator)->GetName() : "") : "")
+	),
 	m_IsInGround(false)
 {
 }
@@ -221,7 +231,7 @@ cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a
 cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Vector3d & a_Pos, const Vector3d & a_Speed, double a_Width, double a_Height) :
 	super(etProjectile, a_Pos.x, a_Pos.y, a_Pos.z, a_Width, a_Height),
 	m_ProjectileKind(a_Kind),
-	m_Creator(a_Creator),
+	m_CreatorData(a_Creator->GetUniqueID(), a_Creator->IsPlayer() ? ((cPlayer *)a_Creator)->GetName() : ""),
 	m_IsInGround(false)
 {
 	SetSpeed(a_Speed);
@@ -298,7 +308,7 @@ AString cProjectileEntity::GetMCAClassName(void) const
 		case pkEgg:           return "Egg";
 		case pkGhastFireball: return "Fireball";
 		case pkFireCharge:    return "SmallFireball";
-		case pkEnderPearl:    return "ThrownEnderPearl";
+		case pkEnderPearl:    return "ThrownEnderpearl";
 		case pkExpBottle:     return "ThrownExpBottle";
 		case pkSplashPotion:  return "ThrownPotion";
 		case pkWitherSkull:   return "WitherSkull";
@@ -316,8 +326,9 @@ AString cProjectileEntity::GetMCAClassName(void) const
 void cProjectileEntity::Tick(float a_Dt, cChunk & a_Chunk)
 {
 	super::Tick(a_Dt, a_Chunk);
-
-	if (GetProjectileKind() != pkArrow) // See cArrow::Tick
+	
+	// TODO: see BroadcastMovementUpdate; RelativeMove packet jerkiness affects projectiles too (cause of sympton described in cArrowEntity::Tick())
+	if (GetProjectileKind() != pkArrow)
 	{
 		BroadcastMovementUpdate();
 	}
@@ -335,19 +346,10 @@ void cProjectileEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
 		return;
 	}
 	
-	Vector3d PerTickSpeed = GetSpeed() / 20;
-	Vector3d Pos = GetPosition();
-	
-	// Trace the tick's worth of movement as a line:
-	Vector3d NextPos = Pos + PerTickSpeed;
-	cProjectileTracerCallback TracerCallback(this);
-	if (!cLineBlockTracer::Trace(*m_World, TracerCallback, Pos, NextPos))
-	{
-		// Something has been hit, abort all other processing
-		return;
-	}
-	// The tracer also checks the blocks for slowdown blocks - water and lava - and stores it for later in its SlowdownCoeff
-	
+	const Vector3d PerTickSpeed = GetSpeed() / 20;
+	const Vector3d Pos = GetPosition();
+	const Vector3d NextPos = Pos + PerTickSpeed;
+
 	// Test for entity collisions:
 	cProjectileEntityCollisionCallback EntityCollisionCallback(this, Pos, NextPos);
 	a_Chunk.ForEachEntity(EntityCollisionCallback);
@@ -364,10 +366,19 @@ void cProjectileEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
 			HitPos.x, HitPos.y, HitPos.z,
 			EntityCollisionCallback.GetMinCoeff()
 		);
-		
+
 		OnHitEntity(*(EntityCollisionCallback.GetHitEntity()), HitPos);
 	}
 	// TODO: Test the entities in the neighboring chunks, too
+	
+	// Trace the tick's worth of movement as a line:
+	cProjectileTracerCallback TracerCallback(this);
+	if (!cLineBlockTracer::Trace(*m_World, TracerCallback, Pos, NextPos))
+	{
+		// Something has been hit, abort all other processing
+		return;
+	}
+	// The tracer also checks the blocks for slowdown blocks - water and lava - and stores it for later in its SlowdownCoeff
 
 	// Update the position:
 	SetPosition(NextPos);
diff --git a/src/Entities/ProjectileEntity.h b/src/Entities/ProjectileEntity.h
index ae06b072f..7b38169e2 100644
--- a/src/Entities/ProjectileEntity.h
+++ b/src/Entities/ProjectileEntity.h
@@ -66,8 +66,15 @@ public:
 	/// Returns the kind of the projectile (fast class identification)
 	eKind GetProjectileKind(void) const { return m_ProjectileKind; }
 	
-	/// Returns the entity who created this projectile; may be NULL
-	cEntity * GetCreator(void) { return m_Creator; }
+	/** Returns the unique ID of the entity who created this projectile
+	May return an ID <0
+	*/
+	int GetCreatorUniqueID(void) { return m_CreatorData.m_UniqueID; }
+
+	/** Returns the name of the player that created the projectile
+	Will be empty for non-player creators
+	*/
+	AString GetCreatorName(void) const { return m_CreatorData.m_Name; }
 	
 	/// Returns the string that is used as the entity type (class name) in MCA files
 	AString GetMCAClassName(void) const;
@@ -81,10 +88,29 @@ public:
 	void SetIsInGround(bool a_IsInGround) { m_IsInGround = a_IsInGround; }
 	
 protected:
+
+	/** A structure that stores the Entity ID and Playername of the projectile's creator 
+	Used to migitate invalid pointers caused by the creator being destroyed
+	*/
+	struct CreatorData
+	{
+		CreatorData(int a_UniqueID, const AString & a_Name) :
+			m_UniqueID(a_UniqueID),
+			m_Name(a_Name)
+		{
+		}
+
+		const int m_UniqueID;
+		AString m_Name;
+	};
+
+	/** The type of projectile I am */
 	eKind m_ProjectileKind;
 	
-	/// The entity who has created this projectile; may be NULL (e. g. for dispensers)
-	cEntity * m_Creator;
+	/** The structure for containing the entity ID and name who has created this projectile
+	The ID and/or name may be NULL (e.g. for dispensers/mobs)
+	*/
+	CreatorData m_CreatorData;
 	
 	/// True if the projectile has hit the ground and is stuck there
 	bool m_IsInGround;
diff --git a/src/Entities/ThrownEggEntity.cpp b/src/Entities/ThrownEggEntity.cpp
index 224019091..456083108 100644
--- a/src/Entities/ThrownEggEntity.cpp
+++ b/src/Entities/ThrownEggEntity.cpp
@@ -8,7 +8,8 @@
 
 
 cThrownEggEntity::cThrownEggEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed) :
-	super(pkEgg, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25)
+	super(pkEgg, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25),
+	m_DestroyTimer(-1)
 {
 	SetSpeed(a_Speed);
 }
@@ -21,7 +22,7 @@ void cThrownEggEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_H
 {
 	TrySpawnChicken(a_HitPos);
 	
-	Destroy();
+	m_DestroyTimer = 2;
 }
 
 
@@ -36,7 +37,7 @@ void cThrownEggEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_Hit
 	TrySpawnChicken(a_HitPos);
 	a_EntityHit.TakeDamage(dtRangedAttack, this, TotalDamage, 1);
 	
-	Destroy(true);
+	m_DestroyTimer = 5;
 }
 
 
diff --git a/src/Entities/ThrownEggEntity.h b/src/Entities/ThrownEggEntity.h
index 5ba8f051b..dc72c279f 100644
--- a/src/Entities/ThrownEggEntity.h
+++ b/src/Entities/ThrownEggEntity.h
@@ -30,8 +30,29 @@ protected:
 	// cProjectileEntity overrides:
 	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace) override;
 	virtual void OnHitEntity    (cEntity & a_EntityHit, const Vector3d & a_HitPos) override;
+	virtual void Tick           (float a_Dt, cChunk & a_Chunk) override
+	{
+		if (m_DestroyTimer > 0)
+		{
+			m_DestroyTimer--;
+			if (m_DestroyTimer == 0)
+			{
+				Destroy();
+				return;
+			}
+		}
+		else
+		{
+			super::Tick(a_Dt, a_Chunk);
+		}
+	}
 	
 	// Randomly decides whether to spawn a chicken where the egg lands.
 	void TrySpawnChicken(const Vector3d & a_HitPos);
+
+private:
+
+	/** Time in ticks to wait for the hit animation to begin before destroying */
+	int m_DestroyTimer;
 	
 } ; // tolua_export
diff --git a/src/Entities/ThrownEnderPearlEntity.cpp b/src/Entities/ThrownEnderPearlEntity.cpp
index c37161145..c7407e6ae 100644
--- a/src/Entities/ThrownEnderPearlEntity.cpp
+++ b/src/Entities/ThrownEnderPearlEntity.cpp
@@ -1,13 +1,15 @@
 #include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
 
 #include "ThrownEnderPearlEntity.h"
+#include "Player.h"
 
 
 
 
 
 cThrownEnderPearlEntity::cThrownEnderPearlEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed) :
-	super(pkEnderPearl, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25)
+	super(pkEnderPearl, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25),
+	m_DestroyTimer(-1)
 {
 	SetSpeed(a_Speed);
 }
@@ -21,7 +23,7 @@ void cThrownEnderPearlEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockF
 	// TODO: Tweak a_HitPos based on block face.
 	TeleportCreator(a_HitPos);
 	
-	Destroy();
+	m_DestroyTimer = 2;
 }
 
 
@@ -36,7 +38,7 @@ void cThrownEnderPearlEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d
 	TeleportCreator(a_HitPos);
 	a_EntityHit.TakeDamage(dtRangedAttack, this, TotalDamage, 1);
 	
-	Destroy(true);
+	m_DestroyTimer = 5;
 }
 
 
@@ -45,10 +47,34 @@ void cThrownEnderPearlEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d
 
 void cThrownEnderPearlEntity::TeleportCreator(const Vector3d & a_HitPos)
 {
-	// Teleport the creator here, make them take 5 damage:
-	if (m_Creator != NULL)
+	if (m_CreatorData.m_Name.empty())
 	{
-		m_Creator->TeleportToCoords(a_HitPos.x + 0.5, a_HitPos.y + 1.7, a_HitPos.z + 0.5);
-		m_Creator->TakeDamage(dtEnderPearl, this, 5, 0);
+		return;
 	}
+
+	class cProjectileCreatorCallbackForPlayers : public cPlayerListCallback
+	{
+	public:
+		cProjectileCreatorCallbackForPlayers(cEntity * a_Attacker, Vector3i a_HitPos) :
+			m_Attacker(a_Attacker),
+			m_HitPos(a_HitPos)
+		{
+		}
+
+		virtual bool Item(cPlayer * a_Entity) override
+		{
+			// Teleport the creator here, make them take 5 damage:
+			a_Entity->TeleportToCoords(m_HitPos.x, m_HitPos.y + 0.2, m_HitPos.z);
+			a_Entity->TakeDamage(dtEnderPearl, m_Attacker, 5, 0);
+			return true;
+		}
+
+	private:
+
+		cEntity * m_Attacker;
+		Vector3i m_HitPos;
+	};
+
+	cProjectileCreatorCallbackForPlayers PCCFP(this, a_HitPos);
+	GetWorld()->FindAndDoWithPlayer(m_CreatorData.m_Name, PCCFP);
 }
diff --git a/src/Entities/ThrownEnderPearlEntity.h b/src/Entities/ThrownEnderPearlEntity.h
index ddee5babe..1cea5f7d9 100644
--- a/src/Entities/ThrownEnderPearlEntity.h
+++ b/src/Entities/ThrownEnderPearlEntity.h
@@ -30,8 +30,29 @@ protected:
 	// cProjectileEntity overrides:
 	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace) override;
 	virtual void OnHitEntity    (cEntity & a_EntityHit, const Vector3d & a_HitPos) override;
-	
-	// Teleports the creator where the ender pearl lands.
+	virtual void Tick           (float a_Dt, cChunk & a_Chunk) override
+	{
+		if (m_DestroyTimer > 0)
+		{
+			m_DestroyTimer--;
+			if (m_DestroyTimer == 0)
+			{
+				Destroy();
+				return;
+			}
+		}
+		else
+		{
+			super::Tick(a_Dt, a_Chunk);
+		}
+	}
+	
+	/** Teleports the creator where the ender pearl lands */
 	void TeleportCreator(const Vector3d & a_HitPos);
+
+private:
+
+	/** Time in ticks to wait for the hit animation to begin before destroying */
+	int m_DestroyTimer;
 	
 } ; // tolua_export
diff --git a/src/Entities/ThrownSnowballEntity.cpp b/src/Entities/ThrownSnowballEntity.cpp
index cefc3433c..d94e75898 100644
--- a/src/Entities/ThrownSnowballEntity.cpp
+++ b/src/Entities/ThrownSnowballEntity.cpp
@@ -8,7 +8,8 @@
 
 
 cThrownSnowballEntity::cThrownSnowballEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed) :
-	super(pkSnowball, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25)
+	super(pkSnowball, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25),
+	m_DestroyTimer(-1)
 {
 	SetSpeed(a_Speed);
 }
@@ -19,7 +20,7 @@ cThrownSnowballEntity::cThrownSnowballEntity(cEntity * a_Creator, double a_X, do
 
 void cThrownSnowballEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace)
 {
-	Destroy();
+	m_DestroyTimer = 2;
 }
 
 
@@ -40,5 +41,5 @@ void cThrownSnowballEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d &
 	// TODO: If entity is Ender Crystal, destroy it
 	a_EntityHit.TakeDamage(dtRangedAttack, this, TotalDamage, 1);
 	
-	Destroy(true);
+	m_DestroyTimer = 5;
 }
diff --git a/src/Entities/ThrownSnowballEntity.h b/src/Entities/ThrownSnowballEntity.h
index a09512e37..9a8770379 100644
--- a/src/Entities/ThrownSnowballEntity.h
+++ b/src/Entities/ThrownSnowballEntity.h
@@ -30,5 +30,26 @@ protected:
 	// cProjectileEntity overrides:
 	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace) override;
 	virtual void OnHitEntity    (cEntity & a_EntityHit, const Vector3d & a_HitPos) override;
+	virtual void Tick           (float a_Dt, cChunk & a_Chunk) override
+	{
+		if (m_DestroyTimer > 0)
+		{
+			m_DestroyTimer--;
+			if (m_DestroyTimer == 0)
+			{
+				Destroy();
+				return;
+			}
+		}
+		else
+		{
+			super::Tick(a_Dt, a_Chunk);
+		}
+	}
+
+private:
+
+	/** Time in ticks to wait for the hit animation to begin before destroying */
+	int m_DestroyTimer;
 	
 } ; // tolua_export