29 files changed, 220 insertions, 181 deletions

diff --git a/src/Bindings/Plugin.h b/src/Bindings/Plugin.h
index fb22dd33e..8cc9ff0cd 100644
--- a/src/Bindings/Plugin.h
+++ b/src/Bindings/Plugin.h
@@ -45,26 +45,26 @@ public:
 	virtual void Tick(float a_Dt) = 0;
 
 	/** Calls the specified hook with the params given. Returns the bool that the hook callback returns.*/
-	virtual bool OnBlockSpread              (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source) = 0;
-	virtual bool OnBlockToPickups           (cWorld * a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) = 0;
-	virtual bool OnChat                     (cPlayer * a_Player, AString & a_Message) = 0;
-	virtual bool OnChunkAvailable           (cWorld * a_World, int a_ChunkX, int a_ChunkZ) = 0;
-	virtual bool OnChunkGenerated           (cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) = 0;
-	virtual bool OnChunkGenerating          (cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) = 0;
-	virtual bool OnChunkUnloaded            (cWorld * a_World, int a_ChunkX, int a_ChunkZ) = 0;
-	virtual bool OnChunkUnloading           (cWorld * a_World, int a_ChunkX, int a_ChunkZ) = 0;
-	virtual bool OnCollectingPickup         (cPlayer * a_Player, cPickup * a_Pickup) = 0;
-	virtual bool OnCraftingNoRecipe         (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe) = 0;
+	virtual bool OnBlockSpread              (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source) = 0;
+	virtual bool OnBlockToPickups           (cWorld & a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) = 0;
+	virtual bool OnChat                     (cPlayer & a_Player, AString & a_Message) = 0;
+	virtual bool OnChunkAvailable           (cWorld & a_World, int a_ChunkX, int a_ChunkZ) = 0;
+	virtual bool OnChunkGenerated           (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) = 0;
+	virtual bool OnChunkGenerating          (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) = 0;
+	virtual bool OnChunkUnloaded            (cWorld & a_World, int a_ChunkX, int a_ChunkZ) = 0;
+	virtual bool OnChunkUnloading           (cWorld & a_World, int a_ChunkX, int a_ChunkZ) = 0;
+	virtual bool OnCollectingPickup         (cPlayer & a_Player, cPickup & a_Pickup) = 0;
+	virtual bool OnCraftingNoRecipe         (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe * a_Recipe) = 0;
 	virtual bool OnDisconnect               (cClientHandle & a_Client, const AString & a_Reason) = 0;
 	virtual bool OnEntityAddEffect          (cEntity & a_Entity, int a_EffectType, int a_EffectDurationTicks, int a_EffectIntensity, double a_DistanceModifier) = 0;
 	virtual bool OnExecuteCommand           (cPlayer * a_Player, const AStringVector & a_Split) = 0;
 	virtual bool OnExploded                 (cWorld & a_World, double a_ExplosionSize,   bool a_CanCauseFire,   double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData) = 0;
 	virtual bool OnExploding                (cWorld & a_World, double & a_ExplosionSize, bool & a_CanCauseFire, double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData) = 0;
-	virtual bool OnHandshake                (cClientHandle * a_Client, const AString & a_Username) = 0;
+	virtual bool OnHandshake                (cClientHandle & a_Client, const AString & a_Username) = 0;
 	virtual bool OnHopperPullingItem        (cWorld & a_World, cHopperEntity & a_Hopper, int a_DstSlotNum, cBlockEntityWithItems & a_SrcEntity, int a_SrcSlotNum) = 0;
 	virtual bool OnHopperPushingItem        (cWorld & a_World, cHopperEntity & a_Hopper, int a_SrcSlotNum, cBlockEntityWithItems & a_DstEntity, int a_DstSlotNum) = 0;
 	virtual bool OnKilling                  (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI) = 0;
-	virtual bool OnLogin                    (cClientHandle * a_Client, int a_ProtocolVersion, const AString & a_Username) = 0;
+	virtual bool OnLogin                    (cClientHandle & a_Client, int a_ProtocolVersion, const AString & a_Username) = 0;
 	virtual bool OnPlayerAnimation          (cPlayer & a_Player, int a_Animation) = 0;
 	virtual bool OnPlayerBreakingBlock      (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
 	virtual bool OnPlayerBrokenBlock        (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
@@ -89,8 +89,8 @@ public:
 	virtual bool OnPlayerUsingItem          (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) = 0;
 	virtual bool OnPluginMessage            (cClientHandle & a_Client, const AString & a_Channel, const AString & a_Message) = 0;
 	virtual bool OnPluginsLoaded            (void) = 0;
-	virtual bool OnPostCrafting             (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe) = 0;
-	virtual bool OnPreCrafting              (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe) = 0;
+	virtual bool OnPostCrafting             (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) = 0;
+	virtual bool OnPreCrafting              (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) = 0;
 	virtual bool OnProjectileHitBlock       (cProjectileEntity & a_Projectile, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_Face, const Vector3d & a_BlockHitPos) = 0;
 	virtual bool OnProjectileHitEntity      (cProjectileEntity & a_Projectile, cEntity & a_HitEntity) = 0;
 	virtual bool OnServerPing               (cClientHandle & a_ClientHandle, AString & a_ServerDescription, int & a_OnlinePlayersCount, int & a_MaxPlayersCount, AString & a_Favicon) = 0;
@@ -99,8 +99,8 @@ public:
 	virtual bool OnSpawningEntity           (cWorld & a_World, cEntity & a_Entity) = 0;
 	virtual bool OnSpawningMonster          (cWorld & a_World, cMonster & a_Monster) = 0;
 	virtual bool OnTakeDamage               (cEntity & a_Receiver, TakeDamageInfo & a_TakeDamageInfo) = 0;
-	virtual bool OnUpdatedSign              (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player) = 0;
-	virtual bool OnUpdatingSign             (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ,       AString & a_Line1,       AString & a_Line2,       AString & a_Line3,       AString & a_Line4, cPlayer * a_Player) = 0;
+	virtual bool OnUpdatedSign              (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player) = 0;
+	virtual bool OnUpdatingSign             (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ,       AString & a_Line1,       AString & a_Line2,       AString & a_Line3,       AString & a_Line4, cPlayer * a_Player) = 0;
 	virtual bool OnWeatherChanged           (cWorld & a_World) = 0;
 	virtual bool OnWeatherChanging          (cWorld & a_World, eWeather & a_NewWeather) = 0;
 	virtual bool OnWorldStarted             (cWorld & a_World) = 0;
@@ -110,7 +110,7 @@ public:
 	Command permissions have already been checked.
 	Returns true if command handled successfully
 	*/
-	virtual bool HandleCommand(const AStringVector & a_Split, cPlayer * a_Player) = 0;
+	virtual bool HandleCommand(const AStringVector & a_Split, cPlayer & a_Player) = 0;
 	
 	/** Handles the console command split into a_Split.
 	Returns true if command handled successfully. Output is to be sent to the a_Output callback.
diff --git a/src/Bindings/PluginLua.cpp b/src/Bindings/PluginLua.cpp
index 2629eb641..eec31e8a6 100644
--- a/src/Bindings/PluginLua.cpp
+++ b/src/Bindings/PluginLua.cpp
@@ -202,14 +202,14 @@ void cPluginLua::Tick(float a_Dt)
 
 
 
-bool cPluginLua::OnBlockSpread(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source)
+bool cPluginLua::OnBlockSpread(cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_BLOCK_SPREAD];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_BlockX, a_BlockY, a_BlockZ, a_Source, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_BlockX, a_BlockY, a_BlockZ, a_Source, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -222,14 +222,14 @@ bool cPluginLua::OnBlockSpread(cWorld * a_World, int a_BlockX, int a_BlockY, int
 
 
 
-bool cPluginLua::OnBlockToPickups(cWorld * a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups)
+bool cPluginLua::OnBlockToPickups(cWorld & a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_BLOCK_TO_PICKUPS];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_Digger, a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, &a_Pickups, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_Digger, a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, &a_Pickups, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -242,14 +242,14 @@ bool cPluginLua::OnBlockToPickups(cWorld * a_World, cEntity * a_Digger, int a_Bl
 
 
 
-bool cPluginLua::OnChat(cPlayer * a_Player, AString & a_Message)
+bool cPluginLua::OnChat(cPlayer & a_Player, AString & a_Message)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CHAT];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_Player, a_Message, cLuaState::Return, res, a_Message);
+		m_LuaState.Call((int)(**itr), &a_Player, a_Message, cLuaState::Return, res, a_Message);
 		if (res)
 		{
 			return true;
@@ -262,14 +262,14 @@ bool cPluginLua::OnChat(cPlayer * a_Player, AString & a_Message)
 
 
 
-bool cPluginLua::OnChunkAvailable(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+bool cPluginLua::OnChunkAvailable(cWorld & a_World, int a_ChunkX, int a_ChunkZ)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CHUNK_AVAILABLE];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_ChunkX, a_ChunkZ, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_ChunkX, a_ChunkZ, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -282,14 +282,14 @@ bool cPluginLua::OnChunkAvailable(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
 
 
 
-bool cPluginLua::OnChunkGenerated(cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
+bool cPluginLua::OnChunkGenerated(cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CHUNK_GENERATED];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_ChunkX, a_ChunkZ, a_ChunkDesc, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_ChunkX, a_ChunkZ, a_ChunkDesc, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -302,14 +302,14 @@ bool cPluginLua::OnChunkGenerated(cWorld * a_World, int a_ChunkX, int a_ChunkZ,
 
 
 
-bool cPluginLua::OnChunkGenerating(cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
+bool cPluginLua::OnChunkGenerating(cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CHUNK_GENERATING];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_ChunkX, a_ChunkZ, a_ChunkDesc, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_ChunkX, a_ChunkZ, a_ChunkDesc, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -322,14 +322,14 @@ bool cPluginLua::OnChunkGenerating(cWorld * a_World, int a_ChunkX, int a_ChunkZ,
 
 
 
-bool cPluginLua::OnChunkUnloaded(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+bool cPluginLua::OnChunkUnloaded(cWorld & a_World, int a_ChunkX, int a_ChunkZ)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CHUNK_UNLOADED];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_ChunkX, a_ChunkZ, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_ChunkX, a_ChunkZ, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -342,14 +342,14 @@ bool cPluginLua::OnChunkUnloaded(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
 
 
 
-bool cPluginLua::OnChunkUnloading(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+bool cPluginLua::OnChunkUnloading(cWorld & a_World, int a_ChunkX, int a_ChunkZ)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CHUNK_UNLOADING];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_ChunkX, a_ChunkZ, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_ChunkX, a_ChunkZ, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -362,14 +362,14 @@ bool cPluginLua::OnChunkUnloading(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
 
 
 
-bool cPluginLua::OnCollectingPickup(cPlayer * a_Player, cPickup * a_Pickup)
+bool cPluginLua::OnCollectingPickup(cPlayer & a_Player, cPickup & a_Pickup)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_COLLECTING_PICKUP];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_Player, a_Pickup, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Player, &a_Pickup, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -382,14 +382,14 @@ bool cPluginLua::OnCollectingPickup(cPlayer * a_Player, cPickup * a_Pickup)
 
 
 
-bool cPluginLua::OnCraftingNoRecipe(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+bool cPluginLua::OnCraftingNoRecipe(cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe * a_Recipe)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_CRAFTING_NO_RECIPE];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), (cPlayer *)a_Player, a_Grid, a_Recipe, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Player, &a_Grid, &a_Recipe, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -471,12 +471,12 @@ bool cPluginLua::OnExploded(cWorld & a_World, double a_ExplosionSize, bool a_Can
 	{
 		switch (a_Source)
 		{
-			case esOther:            m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, a_SourceData,               cLuaState::Return, res); break;
-			case esPrimedTNT:        m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (cTNTEntity *)a_SourceData, cLuaState::Return, res); break;
-			case esMonster:          m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (cMonster *)a_SourceData,   cLuaState::Return, res); break;
-			case esBed:              m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (Vector3i *)a_SourceData,   cLuaState::Return, res); break;
-			case esEnderCrystal:     m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (Vector3i *)a_SourceData,   cLuaState::Return, res); break;
-			case esGhastFireball:    m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, a_SourceData,               cLuaState::Return, res); break;
+			case esOther:            m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, a_SourceData,                cLuaState::Return, res); break;
+			case esPrimedTNT:        m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (cTNTEntity *)a_SourceData,  cLuaState::Return, res); break;
+			case esMonster:          m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (cMonster *)a_SourceData,    cLuaState::Return, res); break;
+			case esBed:              m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (Vector3i *)a_SourceData,    cLuaState::Return, res); break;
+			case esEnderCrystal:     m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, (Vector3i *)a_SourceData,    cLuaState::Return, res); break;
+			case esGhastFireball:    m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, a_SourceData,                cLuaState::Return, res); break;
 			case esWitherSkullBlack:
 			case esWitherSkullBlue:  m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, a_SourceData, cLuaState::Return, res); break;
 			case esWitherBirth:      m_LuaState.Call((int)(**itr), &a_World, a_ExplosionSize, a_CanCauseFire, a_X, a_Y, a_Z, a_Source, a_SourceData, cLuaState::Return, res); break;
@@ -536,14 +536,14 @@ bool cPluginLua::OnExploding(cWorld & a_World, double & a_ExplosionSize, bool &
 
 
 
-bool cPluginLua::OnHandshake(cClientHandle * a_Client, const AString & a_Username)
+bool cPluginLua::OnHandshake(cClientHandle & a_Client, const AString & a_Username)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_HANDSHAKE];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_Client, a_Username, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Client, a_Username, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -617,14 +617,14 @@ bool cPluginLua::OnKilling(cEntity & a_Victim, cEntity * a_Killer, TakeDamageInf
 
 
 
-bool cPluginLua::OnLogin(cClientHandle * a_Client, int a_ProtocolVersion, const AString & a_Username)
+bool cPluginLua::OnLogin(cClientHandle & a_Client, int a_ProtocolVersion, const AString & a_Username)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_LOGIN];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_Client, a_ProtocolVersion, a_Username, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Client, a_ProtocolVersion, a_Username, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -784,7 +784,7 @@ bool cPluginLua::OnPlayerFishing(cPlayer & a_Player, cItems & a_Reward)
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_PLAYER_FISHING];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), &a_Player, a_Reward, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Player, &a_Reward, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -1115,14 +1115,14 @@ bool cPluginLua::OnPluginsLoaded(void)
 
 
 
-bool cPluginLua::OnPostCrafting(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+bool cPluginLua::OnPostCrafting(cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_POST_CRAFTING];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_Player, a_Grid, a_Recipe, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Player, &a_Grid, &a_Recipe, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -1135,14 +1135,14 @@ bool cPluginLua::OnPostCrafting(const cPlayer * a_Player, const cCraftingGrid *
 
 
 
-bool cPluginLua::OnPreCrafting(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+bool cPluginLua::OnPreCrafting(cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_PRE_CRAFTING];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_Player, a_Grid, a_Recipe, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Player, &a_Grid, &a_Recipe, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -1316,7 +1316,7 @@ bool cPluginLua::OnTakeDamage(cEntity & a_Receiver, TakeDamageInfo & a_TDI)
 
 
 bool cPluginLua::OnUpdatedSign(
-	cWorld * a_World,
+	cWorld & a_World,
 	int a_BlockX, int a_BlockY, int a_BlockZ,
 	const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4,
 	cPlayer * a_Player
@@ -1327,7 +1327,7 @@ bool cPluginLua::OnUpdatedSign(
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_UPDATED_SIGN];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4, a_Player, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_World, a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4, a_Player, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
@@ -1341,7 +1341,7 @@ bool cPluginLua::OnUpdatedSign(
 
 
 bool cPluginLua::OnUpdatingSign(
-	cWorld * a_World,
+	cWorld & a_World,
 	int a_BlockX, int a_BlockY, int a_BlockZ,
 	AString & a_Line1, AString & a_Line2, AString & a_Line3, AString & a_Line4,
 	cPlayer * a_Player
@@ -1352,7 +1352,7 @@ bool cPluginLua::OnUpdatingSign(
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_UPDATING_SIGN];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), a_World, a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4, a_Player, cLuaState::Return, res, a_Line1, a_Line2, a_Line3, a_Line4);
+		m_LuaState.Call((int)(**itr), &a_World, a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4, a_Player, cLuaState::Return, res, a_Line1, a_Line2, a_Line3, a_Line4);
 		if (res)
 		{
 			return true;
@@ -1435,7 +1435,7 @@ bool cPluginLua::OnWorldTick(cWorld & a_World, float a_Dt, int a_LastTickDuratio
 
 
 
-bool cPluginLua::HandleCommand(const AStringVector & a_Split, cPlayer * a_Player)
+bool cPluginLua::HandleCommand(const AStringVector & a_Split, cPlayer & a_Player)
 {
 	ASSERT(!a_Split.empty());
 	CommandMap::iterator cmd = m_Commands.find(a_Split[0]);
@@ -1447,7 +1447,7 @@ bool cPluginLua::HandleCommand(const AStringVector & a_Split, cPlayer * a_Player
 	
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
-	m_LuaState.Call(cmd->second, a_Split, a_Player, cLuaState::Return, res);
+	m_LuaState.Call(cmd->second, a_Split, &a_Player, cLuaState::Return, res);
 	return res;
 }
 
diff --git a/src/Bindings/PluginLua.h b/src/Bindings/PluginLua.h
index eda65b76c..6bb134efc 100644
--- a/src/Bindings/PluginLua.h
+++ b/src/Bindings/PluginLua.h
@@ -69,26 +69,26 @@ public:
 
 	virtual void Tick(float a_Dt) override;
 
-	virtual bool OnBlockSpread              (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source) override;
-	virtual bool OnBlockToPickups           (cWorld * a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) override;
-	virtual bool OnChat                     (cPlayer * a_Player, AString & a_Message) override;
-	virtual bool OnChunkAvailable           (cWorld * a_World, int a_ChunkX, int a_ChunkZ) override;
-	virtual bool OnChunkGenerated           (cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) override;
-	virtual bool OnChunkGenerating          (cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) override;
-	virtual bool OnChunkUnloaded            (cWorld * a_World, int a_ChunkX, int a_ChunkZ) override;
-	virtual bool OnChunkUnloading           (cWorld * a_World, int a_ChunkX, int a_ChunkZ) override;
-	virtual bool OnCollectingPickup         (cPlayer * a_Player, cPickup * a_Pickup) override;
-	virtual bool OnCraftingNoRecipe         (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe) override;
+	virtual bool OnBlockSpread              (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source) override;
+	virtual bool OnBlockToPickups           (cWorld & a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) override;
+	virtual bool OnChat                     (cPlayer & a_Player, AString & a_Message) override;
+	virtual bool OnChunkAvailable           (cWorld & a_World, int a_ChunkX, int a_ChunkZ) override;
+	virtual bool OnChunkGenerated           (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) override;
+	virtual bool OnChunkGenerating          (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) override;
+	virtual bool OnChunkUnloaded            (cWorld & a_World, int a_ChunkX, int a_ChunkZ) override;
+	virtual bool OnChunkUnloading           (cWorld & a_World, int a_ChunkX, int a_ChunkZ) override;
+	virtual bool OnCollectingPickup         (cPlayer & a_Player, cPickup & a_Pickup) override;
+	virtual bool OnCraftingNoRecipe         (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe * a_Recipe) override;
 	virtual bool OnDisconnect               (cClientHandle & a_Client, const AString & a_Reason) override;
 	virtual bool OnEntityAddEffect          (cEntity & a_Entity, int a_EffectType, int a_EffectDurationTicks, int a_EffectIntensity, double a_DistanceModifier) override;
 	virtual bool OnExecuteCommand           (cPlayer * a_Player, const AStringVector & a_Split) override;
 	virtual bool OnExploded                 (cWorld & a_World, double a_ExplosionSize,   bool a_CanCauseFire,   double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData) override;
 	virtual bool OnExploding                (cWorld & a_World, double & a_ExplosionSize, bool & a_CanCauseFire, double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData) override;
-	virtual bool OnHandshake                (cClientHandle * a_Client, const AString & a_Username) override;
+	virtual bool OnHandshake                (cClientHandle & a_Client, const AString & a_Username) override;
 	virtual bool OnHopperPullingItem        (cWorld & a_World, cHopperEntity & a_Hopper, int a_DstSlotNum, cBlockEntityWithItems & a_SrcEntity, int a_SrcSlotNum) override;
 	virtual bool OnHopperPushingItem        (cWorld & a_World, cHopperEntity & a_Hopper, int a_SrcSlotNum, cBlockEntityWithItems & a_DstEntity, int a_DstSlotNum) override;
 	virtual bool OnKilling                  (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI) override;
-	virtual bool OnLogin                    (cClientHandle * a_Client, int a_ProtocolVersion, const AString & a_Username) override;
+	virtual bool OnLogin                    (cClientHandle & a_Client, int a_ProtocolVersion, const AString & a_Username) override;
 	virtual bool OnPlayerAnimation          (cPlayer & a_Player, int a_Animation) override;
 	virtual bool OnPlayerBreakingBlock      (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
 	virtual bool OnPlayerBrokenBlock        (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
@@ -113,8 +113,8 @@ public:
 	virtual bool OnPlayerUsingItem          (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override;
 	virtual bool OnPluginMessage            (cClientHandle & a_Client, const AString & a_Channel, const AString & a_Message) override;
 	virtual bool OnPluginsLoaded            (void) override;
-	virtual bool OnPostCrafting             (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe) override;
-	virtual bool OnPreCrafting              (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe) override;
+	virtual bool OnPostCrafting             (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) override;
+	virtual bool OnPreCrafting              (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) override;
 	virtual bool OnProjectileHitBlock       (cProjectileEntity & a_Projectile, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_Face, const Vector3d & a_BlockHitPos) override;
 	virtual bool OnProjectileHitEntity      (cProjectileEntity & a_Projectile, cEntity & a_HitEntity) override;
 	virtual bool OnServerPing               (cClientHandle & a_ClientHandle, AString & a_ServerDescription, int & a_OnlinePlayersCount, int & a_MaxPlayersCount, AString & a_Favicon) override;
@@ -123,14 +123,14 @@ public:
 	virtual bool OnSpawningEntity           (cWorld & a_World, cEntity & a_Entity) override;
 	virtual bool OnSpawningMonster          (cWorld & a_World, cMonster & a_Monster) override;
 	virtual bool OnTakeDamage               (cEntity & a_Receiver, TakeDamageInfo & a_TakeDamageInfo) override;
-	virtual bool OnUpdatedSign              (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player) override;
-	virtual bool OnUpdatingSign             (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ,       AString & a_Line1,       AString & a_Line2,       AString & a_Line3,       AString & a_Line4, cPlayer * a_Player) override;
+	virtual bool OnUpdatedSign              (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player) override;
+	virtual bool OnUpdatingSign             (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ,       AString & a_Line1,       AString & a_Line2,       AString & a_Line3,       AString & a_Line4, cPlayer * a_Player) override;
 	virtual bool OnWeatherChanged           (cWorld & a_World) override;
 	virtual bool OnWeatherChanging          (cWorld & a_World, eWeather & a_NewWeather) override;
 	virtual bool OnWorldStarted             (cWorld & a_World) override;
 	virtual bool OnWorldTick                (cWorld & a_World, float a_Dt, int a_LastTickDurationMSec) override;
 	
-	virtual bool HandleCommand(const AStringVector & a_Split, cPlayer * a_Player) override;
+	virtual bool HandleCommand(const AStringVector & a_Split, cPlayer & a_Player) override;
 	
 	virtual bool HandleConsoleCommand(const AStringVector & a_Split, cCommandOutputCallback & a_Output) override;
 
diff --git a/src/Bindings/PluginManager.cpp b/src/Bindings/PluginManager.cpp
index e0faa838a..43507a5fb 100644
--- a/src/Bindings/PluginManager.cpp
+++ b/src/Bindings/PluginManager.cpp
@@ -225,7 +225,7 @@ void cPluginManager::Tick(float a_Dt)
 
 
 
-bool cPluginManager::CallHookBlockSpread(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source)
+bool cPluginManager::CallHookBlockSpread(cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source)
 {
 	FIND_HOOK(HOOK_BLOCK_SPREAD);
 	VERIFY_HOOK;
@@ -245,7 +245,7 @@ bool cPluginManager::CallHookBlockSpread(cWorld * a_World, int a_BlockX, int a_B
 
 
 bool cPluginManager::CallHookBlockToPickups(
-	cWorld * a_World, cEntity * a_Digger,
+	cWorld & a_World, cEntity * a_Digger,
 	int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
 	cItems & a_Pickups
 )
@@ -267,7 +267,7 @@ bool cPluginManager::CallHookBlockToPickups(
 
 
 
-bool cPluginManager::CallHookChat(cPlayer * a_Player, AString & a_Message)
+bool cPluginManager::CallHookChat(cPlayer & a_Player, AString & a_Message)
 {
 	// Check if the message contains a command, execute it:
 	switch (HandleCommand(a_Player, a_Message, true))
@@ -288,14 +288,14 @@ bool cPluginManager::CallHookChat(cPlayer * a_Player, AString & a_Message)
 		case crError:
 		{
 			// An error in the plugin has prevented the command from executing. Report the error to the player:
-			a_Player->SendMessageFailure(Printf("Something went wrong while executing command \"%s\"", a_Message.c_str()));
+			a_Player.SendMessageFailure(Printf("Something went wrong while executing command \"%s\"", a_Message.c_str()));
 			return true;
 		}
 		
 		case crNoPermission:
 		{
 			// The player is not allowed to execute this command
-			a_Player->SendMessageFailure(Printf("Forbidden command; insufficient privileges: \"%s\"", a_Message.c_str()));
+			a_Player.SendMessageFailure(Printf("Forbidden command; insufficient privileges: \"%s\"", a_Message.c_str()));
 			return true;
 		}
 
@@ -311,8 +311,8 @@ bool cPluginManager::CallHookChat(cPlayer * a_Player, AString & a_Message)
 	{
 		AStringVector Split(StringSplit(a_Message, " "));
 		ASSERT(!Split.empty());  // This should not happen - we know there's at least one char in the message so the split needs to be at least one item long
-		a_Player->SendMessageInfo(Printf("Unknown command: \"%s\"", a_Message.c_str()));
-		LOGINFO("Player %s issued an unknown command: \"%s\"", a_Player->GetName().c_str(), a_Message.c_str());
+		a_Player.SendMessageInfo(Printf("Unknown command: \"%s\"", a_Message.c_str()));
+		LOGINFO("Player %s issued an unknown command: \"%s\"", a_Player.GetName().c_str(), a_Message.c_str());
 		return true;  // Cancel sending
 	}
 
@@ -334,7 +334,7 @@ bool cPluginManager::CallHookChat(cPlayer * a_Player, AString & a_Message)
 
 
 
-bool cPluginManager::CallHookChunkAvailable(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+bool cPluginManager::CallHookChunkAvailable(cWorld & a_World, int a_ChunkX, int a_ChunkZ)
 {
 	FIND_HOOK(HOOK_CHUNK_AVAILABLE);
 	VERIFY_HOOK;
@@ -353,7 +353,7 @@ bool cPluginManager::CallHookChunkAvailable(cWorld * a_World, int a_ChunkX, int
 
 
 
-bool cPluginManager::CallHookChunkGenerated(cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
+bool cPluginManager::CallHookChunkGenerated(cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
 {
 	FIND_HOOK(HOOK_CHUNK_GENERATED);
 	VERIFY_HOOK;
@@ -372,7 +372,7 @@ bool cPluginManager::CallHookChunkGenerated(cWorld * a_World, int a_ChunkX, int
 
 
 
-bool cPluginManager::CallHookChunkGenerating(cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
+bool cPluginManager::CallHookChunkGenerating(cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc)
 {
 	FIND_HOOK(HOOK_CHUNK_GENERATING);
 	VERIFY_HOOK;
@@ -391,7 +391,7 @@ bool cPluginManager::CallHookChunkGenerating(cWorld * a_World, int a_ChunkX, int
 
 
 
-bool cPluginManager::CallHookChunkUnloaded(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+bool cPluginManager::CallHookChunkUnloaded(cWorld & a_World, int a_ChunkX, int a_ChunkZ)
 {
 	FIND_HOOK(HOOK_CHUNK_UNLOADED);
 	VERIFY_HOOK;
@@ -410,7 +410,7 @@ bool cPluginManager::CallHookChunkUnloaded(cWorld * a_World, int a_ChunkX, int a
 
 
 
-bool cPluginManager::CallHookChunkUnloading(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+bool cPluginManager::CallHookChunkUnloading(cWorld & a_World, int a_ChunkX, int a_ChunkZ)
 {
 	FIND_HOOK(HOOK_CHUNK_UNLOADING);
 	VERIFY_HOOK;
@@ -429,14 +429,14 @@ bool cPluginManager::CallHookChunkUnloading(cWorld * a_World, int a_ChunkX, int
 
 
 
-bool cPluginManager::CallHookCollectingPickup(cPlayer * a_Player, cPickup & a_Pickup)
+bool cPluginManager::CallHookCollectingPickup(cPlayer & a_Player, cPickup & a_Pickup)
 {
 	FIND_HOOK(HOOK_COLLECTING_PICKUP);
 	VERIFY_HOOK;
 
 	for (PluginList::iterator itr = Plugins->second.begin(); itr != Plugins->second.end(); ++itr)
 	{
-		if ((*itr)->OnCollectingPickup(a_Player, &a_Pickup))
+		if ((*itr)->OnCollectingPickup(a_Player, a_Pickup))
 		{
 			return true;
 		}
@@ -448,7 +448,7 @@ bool cPluginManager::CallHookCollectingPickup(cPlayer * a_Player, cPickup & a_Pi
 
 
 
-bool cPluginManager::CallHookCraftingNoRecipe(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+bool cPluginManager::CallHookCraftingNoRecipe(cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe * a_Recipe)
 {
 	FIND_HOOK(HOOK_CRAFTING_NO_RECIPE);
 	VERIFY_HOOK;
@@ -562,7 +562,7 @@ bool cPluginManager::CallHookExploding(cWorld & a_World, double & a_ExplosionSiz
 
 
 
-bool cPluginManager::CallHookHandshake(cClientHandle * a_ClientHandle, const AString & a_Username)
+bool cPluginManager::CallHookHandshake(cClientHandle & a_ClientHandle, const AString & a_Username)
 {
 	FIND_HOOK(HOOK_HANDSHAKE);
 	VERIFY_HOOK;
@@ -638,7 +638,7 @@ bool cPluginManager::CallHookKilling(cEntity & a_Victim, cEntity * a_Killer, Tak
 
 
 
-bool cPluginManager::CallHookLogin(cClientHandle * a_Client, int a_ProtocolVersion, const AString & a_Username)
+bool cPluginManager::CallHookLogin(cClientHandle & a_Client, int a_ProtocolVersion, const AString & a_Username)
 {
 	FIND_HOOK(HOOK_LOGIN);
 	VERIFY_HOOK;
@@ -1111,7 +1111,7 @@ bool cPluginManager::CallHookPluginsLoaded(void)
 
 
 
-bool cPluginManager::CallHookPostCrafting(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+bool cPluginManager::CallHookPostCrafting(cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe)
 {
 	FIND_HOOK(HOOK_POST_CRAFTING);
 	VERIFY_HOOK;
@@ -1130,7 +1130,7 @@ bool cPluginManager::CallHookPostCrafting(const cPlayer * a_Player, const cCraft
 
 
 
-bool cPluginManager::CallHookPreCrafting(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+bool cPluginManager::CallHookPreCrafting(cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe)
 {
 	FIND_HOOK(HOOK_PRE_CRAFTING);
 	VERIFY_HOOK;
@@ -1299,7 +1299,7 @@ bool cPluginManager::CallHookTakeDamage(cEntity & a_Receiver, TakeDamageInfo & a
 
 
 
-bool cPluginManager::CallHookUpdatingSign(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, AString & a_Line1, AString & a_Line2, AString & a_Line3, AString & a_Line4, cPlayer * a_Player)
+bool cPluginManager::CallHookUpdatingSign(cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, AString & a_Line1, AString & a_Line2, AString & a_Line3, AString & a_Line4, cPlayer * a_Player)
 {
 	FIND_HOOK(HOOK_UPDATING_SIGN);
 	VERIFY_HOOK;
@@ -1318,7 +1318,7 @@ bool cPluginManager::CallHookUpdatingSign(cWorld * a_World, int a_BlockX, int a_
 
 
 
-bool cPluginManager::CallHookUpdatedSign(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player)
+bool cPluginManager::CallHookUpdatedSign(cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player)
 {
 	FIND_HOOK(HOOK_UPDATED_SIGN);
 	VERIFY_HOOK;
@@ -1413,10 +1413,8 @@ bool cPluginManager::CallHookWorldTick(cWorld & a_World, float a_Dt, int a_LastT
 
 
 
-cPluginManager::CommandResult cPluginManager::HandleCommand(cPlayer * a_Player, const AString & a_Command, bool a_ShouldCheckPermissions)
+cPluginManager::CommandResult cPluginManager::HandleCommand(cPlayer & a_Player, const AString & a_Command, bool a_ShouldCheckPermissions)
 {
-	ASSERT(a_Player != NULL);
-
 	AStringVector Split(StringSplit(a_Command, " "));
 	if (Split.empty())
 	{
@@ -1431,19 +1429,19 @@ cPluginManager::CommandResult cPluginManager::HandleCommand(cPlayer * a_Player,
 	}
 
 	// Ask plugins first if a command is okay to execute the command:
-	if (CallHookExecuteCommand(a_Player, Split))
+	if (CallHookExecuteCommand(&a_Player, Split))
 	{
-		LOGINFO("Player %s tried executing command \"%s\" that was stopped by the HOOK_EXECUTE_COMMAND hook", a_Player->GetName().c_str(), Split[0].c_str());
+		LOGINFO("Player %s tried executing command \"%s\" that was stopped by the HOOK_EXECUTE_COMMAND hook", a_Player.GetName().c_str(), Split[0].c_str());
 		return crBlocked;
 	}
 
 	if (
 		a_ShouldCheckPermissions &&
 		!cmd->second.m_Permission.empty() &&
-		!a_Player->HasPermission(cmd->second.m_Permission)
+		!a_Player.HasPermission(cmd->second.m_Permission)
 	)
 	{
-		LOGINFO("Player %s tried to execute forbidden command: \"%s\"", a_Player->GetName().c_str(), Split[0].c_str());
+		LOGINFO("Player %s tried to execute forbidden command: \"%s\"", a_Player.GetName().c_str(), Split[0].c_str());
 		return crNoPermission;
 	}
 
@@ -1652,7 +1650,7 @@ AString cPluginManager::GetCommandPermission(const AString & a_Command)
 
 
 
-cPluginManager::CommandResult cPluginManager::ExecuteCommand(cPlayer * a_Player, const AString & a_Command)
+cPluginManager::CommandResult cPluginManager::ExecuteCommand(cPlayer & a_Player, const AString & a_Command)
 {
 	return HandleCommand(a_Player, a_Command, true);
 }
@@ -1661,7 +1659,7 @@ cPluginManager::CommandResult cPluginManager::ExecuteCommand(cPlayer * a_Player,
 
 
 
-cPluginManager::CommandResult cPluginManager::ForceExecuteCommand(cPlayer * a_Player, const AString & a_Command)
+cPluginManager::CommandResult cPluginManager::ForceExecuteCommand(cPlayer & a_Player, const AString & a_Command)
 {
 	return HandleCommand(a_Player, a_Command, false);
 }
diff --git a/src/Bindings/PluginManager.h b/src/Bindings/PluginManager.h
index fff3bc323..c69850be6 100644
--- a/src/Bindings/PluginManager.h
+++ b/src/Bindings/PluginManager.h
@@ -178,26 +178,26 @@ public:
 	size_t GetNumPlugins() const;  // tolua_export
 	
 	// Calls for individual hooks. Each returns false if the action is to continue or true if the plugin wants to abort
-	bool CallHookBlockSpread              (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source);
-	bool CallHookBlockToPickups           (cWorld * a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups);
-	bool CallHookChat                     (cPlayer * a_Player, AString & a_Message);
-	bool CallHookChunkAvailable           (cWorld * a_World, int a_ChunkX, int a_ChunkZ);
-	bool CallHookChunkGenerated           (cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc);
-	bool CallHookChunkGenerating          (cWorld * a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc);
-	bool CallHookChunkUnloaded            (cWorld * a_World, int a_ChunkX, int a_ChunkZ);
-	bool CallHookChunkUnloading           (cWorld * a_World, int a_ChunkX, int a_ChunkZ);
-	bool CallHookCollectingPickup         (cPlayer * a_Player, cPickup & a_Pickup);
-	bool CallHookCraftingNoRecipe         (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe);
+	bool CallHookBlockSpread              (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source);
+	bool CallHookBlockToPickups           (cWorld & a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups);
+	bool CallHookChat                     (cPlayer & a_Player, AString & a_Message);
+	bool CallHookChunkAvailable           (cWorld & a_World, int a_ChunkX, int a_ChunkZ);
+	bool CallHookChunkGenerated           (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc);
+	bool CallHookChunkGenerating          (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc);
+	bool CallHookChunkUnloaded            (cWorld & a_World, int a_ChunkX, int a_ChunkZ);
+	bool CallHookChunkUnloading           (cWorld & a_World, int a_ChunkX, int a_ChunkZ);
+	bool CallHookCollectingPickup         (cPlayer & a_Player, cPickup & a_Pickup);
+	bool CallHookCraftingNoRecipe         (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe * a_Recipe);
 	bool CallHookDisconnect               (cClientHandle & a_Client, const AString & a_Reason);
 	bool CallHookEntityAddEffect          (cEntity & a_Entity, int a_EffectType, int a_EffectDurationTicks, int a_EffectIntensity, double a_DistanceModifier);
 	bool CallHookExecuteCommand           (cPlayer * a_Player, const AStringVector & a_Split);  // If a_Player == NULL, it is a console cmd
 	bool CallHookExploded                 (cWorld & a_World, double a_ExplosionSize,   bool a_CanCauseFire,   double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData);
 	bool CallHookExploding                (cWorld & a_World, double & a_ExplosionSize, bool & a_CanCauseFire, double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData);
-	bool CallHookHandshake                (cClientHandle * a_ClientHandle, const AString & a_Username);
+	bool CallHookHandshake                (cClientHandle & a_ClientHandle, const AString & a_Username);
 	bool CallHookHopperPullingItem        (cWorld & a_World, cHopperEntity & a_Hopper, int a_DstSlotNum, cBlockEntityWithItems & a_SrcEntity, int a_SrcSlotNum);
 	bool CallHookHopperPushingItem        (cWorld & a_World, cHopperEntity & a_Hopper, int a_SrcSlotNum, cBlockEntityWithItems & a_DstEntity, int a_DstSlotNum);
 	bool CallHookKilling                  (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI);
-	bool CallHookLogin                    (cClientHandle * a_Client, int a_ProtocolVersion, const AString & a_Username);
+	bool CallHookLogin                    (cClientHandle & a_Client, int a_ProtocolVersion, const AString & a_Username);
 	bool CallHookPlayerAnimation          (cPlayer & a_Player, int a_Animation);
 	bool CallHookPlayerBreakingBlock      (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
 	bool CallHookPlayerBrokenBlock        (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
@@ -222,8 +222,8 @@ public:
 	bool CallHookPlayerUsingItem          (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ);
 	bool CallHookPluginMessage            (cClientHandle & a_Client, const AString & a_Channel, const AString & a_Message);
 	bool CallHookPluginsLoaded            (void);
-	bool CallHookPostCrafting             (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe);
-	bool CallHookPreCrafting              (const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe);
+	bool CallHookPostCrafting             (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe);
+	bool CallHookPreCrafting              (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe);
 	bool CallHookProjectileHitBlock       (cProjectileEntity & a_Projectile, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_Face, const Vector3d & a_BlockHitPos);
 	bool CallHookProjectileHitEntity      (cProjectileEntity & a_Projectile, cEntity & a_HitEntity);
 	bool CallHookServerPing               (cClientHandle & a_ClientHandle, AString & a_ServerDescription, int & a_OnlinePlayersCount, int & a_MaxPlayersCount, AString & a_Favicon);
@@ -232,8 +232,8 @@ public:
 	bool CallHookSpawningEntity           (cWorld & a_World, cEntity & a_Entity);
 	bool CallHookSpawningMonster          (cWorld & a_World, cMonster & a_Monster);
 	bool CallHookTakeDamage               (cEntity & a_Receiver, TakeDamageInfo & a_TDI);
-	bool CallHookUpdatedSign              (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player);
-	bool CallHookUpdatingSign             (cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ,       AString & a_Line1,       AString & a_Line2,       AString & a_Line3,       AString & a_Line4, cPlayer * a_Player);
+	bool CallHookUpdatedSign              (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player);
+	bool CallHookUpdatingSign             (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ,       AString & a_Line1,       AString & a_Line2,       AString & a_Line3,       AString & a_Line4, cPlayer * a_Player);
 	bool CallHookWeatherChanged           (cWorld & a_World);
 	bool CallHookWeatherChanging          (cWorld & a_World, eWeather & a_NewWeather);
 	bool CallHookWorldStarted             (cWorld & a_World);
@@ -264,10 +264,10 @@ public:
 	AString GetCommandPermission(const AString & a_Command);  // tolua_export
 	
 	/** Executes the command, as if it was requested by a_Player. Checks permissions first. Returns crExecuted if executed. */
-	CommandResult ExecuteCommand(cPlayer * a_Player, const AString & a_Command);  // tolua_export
+	CommandResult ExecuteCommand(cPlayer & a_Player, const AString & a_Command);  // tolua_export
 	
 	/** Executes the command, as if it was requested by a_Player. Permisssions are not checked. Returns crExecuted if executed. */
-	CommandResult ForceExecuteCommand(cPlayer * a_Player, const AString & a_Command);  // tolua_export
+	CommandResult ForceExecuteCommand(cPlayer & a_Player, const AString & a_Command);  // tolua_export
 	
 	/** Removes all console command bindings that the specified plugin has made */
 	void RemovePluginConsoleCommands(cPlugin * a_Plugin);
@@ -341,7 +341,7 @@ private:
 	bool AddPlugin(cPlugin * a_Plugin);
 
 	/** Tries to match a_Command to the internal table of commands, if a match is found, the corresponding plugin is called. Returns crExecuted if the command is executed. */
-	cPluginManager::CommandResult HandleCommand(cPlayer * a_Player, const AString & a_Command, bool a_ShouldCheckPermissions);
+	CommandResult HandleCommand(cPlayer & a_Player, const AString & a_Command, bool a_ShouldCheckPermissions);
 } ;  // tolua_export
 
 
diff --git a/src/BlockInServerPluginInterface.h b/src/BlockInServerPluginInterface.h
index e82435364..70c9944a8 100644
--- a/src/BlockInServerPluginInterface.h
+++ b/src/BlockInServerPluginInterface.h
@@ -6,14 +6,30 @@
 #include "Root.h"
 #include "Bindings/PluginManager.h"
 
-class cBlockInServerPluginInterface : public cBlockPluginInterface
+
+
+
+
+class cBlockInServerPluginInterface :
+	public cBlockPluginInterface
 {
 public:
 	cBlockInServerPluginInterface(cWorld & a_World) : m_World(a_World) {}
+
+	virtual bool CallHookBlockSpread(int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source)
+	{
+		return cPluginManager::Get()->CallHookBlockSpread(m_World, a_BlockX, a_BlockY, a_BlockZ, a_Source);
+	}
+
 	virtual bool CallHookBlockToPickups(cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) override
 	{
-		return cRoot::Get()->GetPluginManager()->CallHookBlockToPickups(&m_World, a_Digger, a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, a_Pickups);
+		return cPluginManager::Get()->CallHookBlockToPickups(m_World, a_Digger, a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, a_Pickups);
 	}
+
 private:
 	cWorld & m_World;
 };
+
+
+
+
diff --git a/src/Blocks/BlockDirt.h b/src/Blocks/BlockDirt.h
index 19f889372..89dfc963d 100644
--- a/src/Blocks/BlockDirt.h
+++ b/src/Blocks/BlockDirt.h
@@ -89,7 +89,7 @@ public:
 			Chunk->GetBlockTypeMeta(BlockX, BlockY + 1, BlockZ, AboveDest, AboveMeta);
 			if (cBlockInfo::GetHandler(AboveDest)->CanDirtGrowGrass(AboveMeta))
 			{
-				if (!cRoot::Get()->GetPluginManager()->CallHookBlockSpread(Chunk->GetWorld(), Chunk->GetPosX() * cChunkDef::Width + BlockX, BlockY, Chunk->GetPosZ() * cChunkDef::Width + BlockZ, ssGrassSpread))
+				if (!cRoot::Get()->GetPluginManager()->CallHookBlockSpread(*Chunk->GetWorld(), Chunk->GetPosX() * cChunkDef::Width + BlockX, BlockY, Chunk->GetPosZ() * cChunkDef::Width + BlockZ, ssGrassSpread))
 				{
 					Chunk->FastSetBlock(BlockX, BlockY, BlockZ, E_BLOCK_GRASS, 0);
 				}
diff --git a/src/Blocks/BlockHandler.cpp b/src/Blocks/BlockHandler.cpp
index 904e0a921..b6ef5dd6f 100644
--- a/src/Blocks/BlockHandler.cpp
+++ b/src/Blocks/BlockHandler.cpp
@@ -4,6 +4,7 @@
 #include "../Item.h"
 #include "../World.h"
 #include "../Chunk.h"
+#include "BlockPluginInterface.h"
 #include "BlockAnvil.h"
 #include "BlockBed.h"
 #include "BlockBigFlower.h"
@@ -82,7 +83,6 @@
 #include "BlockWorkbench.h"
 
 
-#include "BlockPluginInterface.h"
 
 
 
diff --git a/src/Blocks/BlockPluginInterface.h b/src/Blocks/BlockPluginInterface.h
index 3a36c40b1..b769bcf3e 100644
--- a/src/Blocks/BlockPluginInterface.h
+++ b/src/Blocks/BlockPluginInterface.h
@@ -1,7 +1,11 @@
 
 #pragma once
 
-/** This interface is used to decouple block handlers from the cPluginManager dependancy through cWorld.
+
+
+
+
+/** This interface is used to decouple block handlers from the cPluginManager dependency through cWorld.
 The block handlers call this interface, which is then implemented by the specific classes that
 the caller provides.
 */
@@ -10,5 +14,10 @@ class cBlockPluginInterface
 public:
 	virtual ~cBlockPluginInterface() {}
 	
+	virtual bool CallHookBlockSpread(int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source) = 0;
 	virtual bool CallHookBlockToPickups(cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) = 0;
 };
+
+
+
+
diff --git a/src/Blocks/BlockVine.h b/src/Blocks/BlockVine.h
index 06d84f2d4..213324cc1 100644
--- a/src/Blocks/BlockVine.h
+++ b/src/Blocks/BlockVine.h
@@ -166,23 +166,31 @@ public:
 		return false;
 	}
 	
+
 	virtual void OnUpdate(cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface, cBlockPluginInterface & a_BlockPluginInterface, cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ)
 	{
 		UNUSED(a_ChunkInterface);
 		UNUSED(a_WorldInterface);
-		UNUSED(a_BlockPluginInterface);
 
+		// Vine cannot grow down if at the bottom:
+		if (a_RelY < 1)
+		{
+			return;
+		}
+
+		// Grow one block down, if possible:
 		BLOCKTYPE Block;
 		a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY - 1, a_RelZ, Block);
 		if (Block == E_BLOCK_AIR)
 		{
-			if (!cRoot::Get()->GetPluginManager()->CallHookBlockSpread((cWorld*) &a_WorldInterface, a_RelX + a_Chunk.GetPosX() * cChunkDef::Width, a_RelY - 1, a_RelZ + a_Chunk.GetPosZ() * cChunkDef::Width, ssVineSpread))
+			if (!a_BlockPluginInterface.CallHookBlockSpread(a_RelX + a_Chunk.GetPosX() * cChunkDef::Width, a_RelY - 1, a_RelZ + a_Chunk.GetPosZ() * cChunkDef::Width, ssVineSpread))
 			{
 				a_Chunk.UnboundedRelSetBlock(a_RelX, a_RelY - 1, a_RelZ, E_BLOCK_VINES, a_Chunk.GetMeta(a_RelX, a_RelY, a_RelZ));
 			}
 		}
 	}
 	
+
 	virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override
 	{
 		return ((a_Meta >> 1) | (a_Meta << 3)) & 0x0f;  // Rotate bits to the right
diff --git a/src/Chunk.cpp b/src/Chunk.cpp
index 96b8eda4e..84da1fe12 100644
--- a/src/Chunk.cpp
+++ b/src/Chunk.cpp
@@ -119,7 +119,7 @@ cChunk::cChunk(
 
 cChunk::~cChunk()
 {
-	cPluginManager::Get()->CallHookChunkUnloaded(m_World, m_PosX, m_PosZ);
+	cPluginManager::Get()->CallHookChunkUnloaded(*m_World, m_PosX, m_PosZ);
 	
 	// LOGINFO("### delete cChunk() (%i, %i) from %p, thread 0x%x ###", m_PosX, m_PosZ, this, GetCurrentThreadId());
 	
@@ -1750,11 +1750,11 @@ void cChunk::SetAreaBiome(int a_MinRelX, int a_MaxRelX, int a_MinRelZ, int a_Max
 
 
 
-void cChunk::CollectPickupsByPlayer(cPlayer * a_Player)
+void cChunk::CollectPickupsByPlayer(cPlayer & a_Player)
 {
-	double PosX = a_Player->GetPosX();
-	double PosY = a_Player->GetPosY();
-	double PosZ = a_Player->GetPosZ();
+	double PosX = a_Player.GetPosX();
+	double PosY = a_Player.GetPosY();
+	double PosZ = a_Player.GetPosZ();
 	
 	for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr)
 	{
diff --git a/src/Chunk.h b/src/Chunk.h
index bc66b6528..42ec6f209 100644
--- a/src/Chunk.h
+++ b/src/Chunk.h
@@ -218,7 +218,7 @@ public:
 	Sends the chunk to all relevant clients. */
 	void SetAreaBiome(int a_MinRelX, int a_MaxRelX, int a_MinRelZ, int a_MaxRelZ, EMCSBiome a_Biome);
 	
-	void CollectPickupsByPlayer(cPlayer * a_Player);
+	void CollectPickupsByPlayer(cPlayer & a_Player);
 	
 	/** Sets the sign text. Returns true if successful. Also sends update packets to all clients in the chunk */
 	bool SetSignLines(int a_RelX, int a_RelY, int a_RelZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4);
diff --git a/src/ChunkMap.cpp b/src/ChunkMap.cpp
index 299fe0eca..6f56b23e0 100644
--- a/src/ChunkMap.cpp
+++ b/src/ChunkMap.cpp
@@ -954,7 +954,7 @@ void cChunkMap::SetChunkData(cSetChunkData & a_SetChunkData)
 	}
 
 	// Notify plugins of the chunk becoming available
-	cPluginManager::Get()->CallHookChunkAvailable(m_World, ChunkX, ChunkZ);
+	cPluginManager::Get()->CallHookChunkAvailable(*m_World, ChunkX, ChunkZ);
 }
 
 
@@ -1145,11 +1145,11 @@ void cChunkMap::FastSetBlocks(sSetBlockList & a_BlockList)
 
 
 
-void cChunkMap::CollectPickupsByPlayer(cPlayer * a_Player)
+void cChunkMap::CollectPickupsByPlayer(cPlayer & a_Player)
 {
-	int BlockX = (int)(a_Player->GetPosX());  // Truncating doesn't matter much; we're scanning entire chunks anyway
-	int BlockY = (int)(a_Player->GetPosY());
-	int BlockZ = (int)(a_Player->GetPosZ());
+	int BlockX = (int)(a_Player.GetPosX());  // Truncating doesn't matter much; we're scanning entire chunks anyway
+	int BlockY = (int)(a_Player.GetPosY());
+	int BlockZ = (int)(a_Player.GetPosZ());
 	int ChunkX = 0, ChunkZ = 0;
 	cChunkDef::AbsoluteToRelative(BlockX, BlockY, BlockZ, ChunkX, ChunkZ);
 	int OtherChunkX = ChunkX + ((BlockX > 8) ? 1 : -1);
@@ -2973,7 +2973,7 @@ void cChunkMap::cChunkLayer::UnloadUnusedChunks(void)
 		if (
 			(m_Chunks[i] != NULL) &&   // Is valid
 			(m_Chunks[i]->CanUnload()) &&  // Can unload
-			!cPluginManager::Get()->CallHookChunkUnloading(m_Parent->GetWorld(), m_Chunks[i]->GetPosX(), m_Chunks[i]->GetPosZ())  // Plugins agree
+			!cPluginManager::Get()->CallHookChunkUnloading(*(m_Parent->GetWorld()), m_Chunks[i]->GetPosX(), m_Chunks[i]->GetPosZ())  // Plugins agree
 		)
 		{
 			// The cChunk destructor calls our GetChunk() while removing its entities
@@ -2987,6 +2987,8 @@ void cChunkMap::cChunkLayer::UnloadUnusedChunks(void)
 
 
 
+
+
 void cChunkMap::FastSetBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
 {
 	cCSLock Lock(m_CSFastSetBlock);
diff --git a/src/ChunkMap.h b/src/ChunkMap.h
index 6e92833f1..38e7f4052 100644
--- a/src/ChunkMap.h
+++ b/src/ChunkMap.h
@@ -144,7 +144,7 @@ public:
 	
 	void FastSetQueuedBlocks();
 	void      FastSetBlocks      (sSetBlockList & a_BlockList);
-	void      CollectPickupsByPlayer(cPlayer * a_Player);
+	void      CollectPickupsByPlayer(cPlayer & a_Player);
 	
 	BLOCKTYPE  GetBlock          (int a_BlockX, int a_BlockY, int a_BlockZ);
 	NIBBLETYPE GetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ);
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index b9adcc828..344b2f2c2 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -596,7 +596,7 @@ bool cClientHandle::HandleLogin(int a_ProtocolVersion, const AString & a_Usernam
 	m_Username = a_Username;
 
 	// Let the plugins know about this event, they may refuse the player:
-	if (cRoot::Get()->GetPluginManager()->CallHookLogin(this, a_ProtocolVersion, a_Username))
+	if (cRoot::Get()->GetPluginManager()->CallHookLogin(*this, a_ProtocolVersion, a_Username))
 	{
 		Destroy();
 		return false;
@@ -1715,7 +1715,7 @@ void cClientHandle::HandleKeepAlive(int a_KeepAliveID)
 
 bool cClientHandle::HandleHandshake(const AString & a_Username)
 {
-	if (!cRoot::Get()->GetPluginManager()->CallHookHandshake(this, a_Username))
+	if (!cRoot::Get()->GetPluginManager()->CallHookHandshake(*this, a_Username))
 	{
 		if (cRoot::Get()->GetServer()->GetNumPlayers() >= cRoot::Get()->GetServer()->GetMaxPlayers())
 		{
diff --git a/src/CraftingRecipes.cpp b/src/CraftingRecipes.cpp
index ed3409207..0828a6c74 100644
--- a/src/CraftingRecipes.cpp
+++ b/src/CraftingRecipes.cpp
@@ -280,10 +280,10 @@ cCraftingRecipes::~cCraftingRecipes()
 
 
 
-void cCraftingRecipes::GetRecipe(const cPlayer * a_Player, const cCraftingGrid & a_CraftingGrid, cCraftingRecipe & a_Recipe)
+void cCraftingRecipes::GetRecipe(cPlayer & a_Player, cCraftingGrid & a_CraftingGrid, cCraftingRecipe & a_Recipe)
 {
 	// Allow plugins to intercept recipes using a pre-craft hook:
-	if (cRoot::Get()->GetPluginManager()->CallHookPreCrafting(a_Player, &a_CraftingGrid, &a_Recipe))
+	if (cRoot::Get()->GetPluginManager()->CallHookPreCrafting(a_Player, a_CraftingGrid, a_Recipe))
 	{
 		return;
 	}
@@ -294,7 +294,7 @@ void cCraftingRecipes::GetRecipe(const cPlayer * a_Player, const cCraftingGrid &
 	if (Recipe.get() == NULL)
 	{
 		// Allow plugins to intercept a no-recipe-found situation:
-		cRoot::Get()->GetPluginManager()->CallHookCraftingNoRecipe(a_Player, &a_CraftingGrid, &a_Recipe);
+		cRoot::Get()->GetPluginManager()->CallHookCraftingNoRecipe(a_Player, a_CraftingGrid, &a_Recipe);
 		return;
 	}
 	for (cRecipeSlots::const_iterator itr = Recipe->m_Ingredients.begin(); itr != Recipe->m_Ingredients.end(); ++itr)
@@ -304,7 +304,7 @@ void cCraftingRecipes::GetRecipe(const cPlayer * a_Player, const cCraftingGrid &
 	a_Recipe.SetResult(Recipe->m_Result);
 	
 	// Allow plugins to intercept recipes after they are processed:
-	cRoot::Get()->GetPluginManager()->CallHookPostCrafting(a_Player, &a_CraftingGrid, &a_Recipe);
+	cRoot::Get()->GetPluginManager()->CallHookPostCrafting(a_Player, a_CraftingGrid, a_Recipe);
 }
 
 
diff --git a/src/CraftingRecipes.h b/src/CraftingRecipes.h
index fe1e15817..5ebabe098 100644
--- a/src/CraftingRecipes.h
+++ b/src/CraftingRecipes.h
@@ -115,7 +115,7 @@ public:
 	~cCraftingRecipes();
 	
 	/// Returns the recipe for current crafting grid. Doesn't modify the grid. Clears a_Recipe if no recipe found.
-	void GetRecipe(const cPlayer * a_Player, const cCraftingGrid & a_CraftingGrid, cCraftingRecipe & a_Recipe);
+	void GetRecipe(cPlayer & a_Player, cCraftingGrid & a_CraftingGrid, cCraftingRecipe & a_Recipe);
 	
 protected:
 
diff --git a/src/Entities/ArrowEntity.cpp b/src/Entities/ArrowEntity.cpp
index c265c5043..7e429c62e 100644
--- a/src/Entities/ArrowEntity.cpp
+++ b/src/Entities/ArrowEntity.cpp
@@ -149,14 +149,14 @@ void cArrowEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
 
 
 
-void cArrowEntity::CollectedBy(cPlayer * a_Dest)
+void cArrowEntity::CollectedBy(cPlayer & a_Dest)
 {
-	if (m_IsInGround && !m_bIsCollected && CanPickup(*a_Dest))
+	if (m_IsInGround && !m_bIsCollected && CanPickup(a_Dest))
 	{
 		// Do not add the arrow to the inventory when the player is in creative:
-		if (!a_Dest->IsGameModeCreative())
+		if (!a_Dest.IsGameModeCreative())
 		{
-			int NumAdded = a_Dest->GetInventory().AddItem(E_ITEM_ARROW);
+			int NumAdded = a_Dest.GetInventory().AddItem(E_ITEM_ARROW);
 			if (NumAdded == 0)
 			{
 				// No space in the inventory
@@ -164,7 +164,7 @@ void cArrowEntity::CollectedBy(cPlayer * a_Dest)
 			}
 		}
 
-		GetWorld()->BroadcastCollectEntity(*this, *a_Dest);
+		GetWorld()->BroadcastCollectEntity(*this, a_Dest);
 		GetWorld()->BroadcastSoundEffect("random.pop", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		m_bIsCollected = true;
 	}
@@ -229,3 +229,7 @@ void cArrowEntity::Tick(float a_Dt, cChunk & a_Chunk)
 		}
 	}
 }
+
+
+
+
diff --git a/src/Entities/ArrowEntity.h b/src/Entities/ArrowEntity.h
index a1e7a17e7..1e4d8eebb 100644
--- a/src/Entities/ArrowEntity.h
+++ b/src/Entities/ArrowEntity.h
@@ -97,7 +97,7 @@ 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 CollectedBy(cPlayer * a_Player) override;
+	virtual void CollectedBy(cPlayer & a_Player) override;
 	virtual void Tick(float a_Dt, cChunk & a_Chunk) override;
 	
 };  // tolua_export
diff --git a/src/Entities/Pickup.cpp b/src/Entities/Pickup.cpp
index 87b5bed07..e5e28446d 100644
--- a/src/Entities/Pickup.cpp
+++ b/src/Entities/Pickup.cpp
@@ -191,10 +191,8 @@ void cPickup::Tick(float a_Dt, cChunk & a_Chunk)
 
 
 
-bool cPickup::CollectedBy(cPlayer * a_Dest)
+bool cPickup::CollectedBy(cPlayer & a_Dest)
 {
-	ASSERT(a_Dest != NULL);
-	
 	if (m_bCollected)
 	{
 		// LOG("Pickup %d cannot be collected by \"%s\", because it has already been collected.", m_UniqueID, a_Dest->GetName().c_str());
@@ -214,21 +212,21 @@ bool cPickup::CollectedBy(cPlayer * a_Dest)
 		return false;
 	}
 
-	int NumAdded = a_Dest->GetInventory().AddItem(m_Item);
+	int NumAdded = a_Dest.GetInventory().AddItem(m_Item);
 	if (NumAdded > 0)
 	{
 		// Check achievements
 		switch (m_Item.m_ItemType)
 		{
-			case E_BLOCK_LOG:      a_Dest->AwardAchievement(achMineWood); break;
-			case E_ITEM_LEATHER:   a_Dest->AwardAchievement(achKillCow);  break;
-			case E_ITEM_DIAMOND:   a_Dest->AwardAchievement(achDiamonds); break;
-			case E_ITEM_BLAZE_ROD: a_Dest->AwardAchievement(achBlazeRod); break;
+			case E_BLOCK_LOG:      a_Dest.AwardAchievement(achMineWood); break;
+			case E_ITEM_LEATHER:   a_Dest.AwardAchievement(achKillCow);  break;
+			case E_ITEM_DIAMOND:   a_Dest.AwardAchievement(achDiamonds); break;
+			case E_ITEM_BLAZE_ROD: a_Dest.AwardAchievement(achBlazeRod); break;
 			default: break;
 		}
 
 		m_Item.m_ItemCount -= NumAdded;
-		m_World->BroadcastCollectEntity(*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", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		if (m_Item.m_ItemCount <= 0)
diff --git a/src/Entities/Pickup.h b/src/Entities/Pickup.h
index 4d5250819..b3cbeee0b 100644
--- a/src/Entities/Pickup.h
+++ b/src/Entities/Pickup.h
@@ -32,7 +32,7 @@ public:
 
 	virtual void SpawnOn(cClientHandle & a_ClientHandle) override;
 
-	bool CollectedBy(cPlayer * a_Dest);  // tolua_export
+	bool CollectedBy(cPlayer & a_Dest);  // tolua_export
 
 	virtual void Tick(float a_Dt, cChunk & a_Chunk) override;
 
diff --git a/src/Entities/Player.cpp b/src/Entities/Player.cpp
index f58a0a016..ecafe6341 100644
--- a/src/Entities/Player.cpp
+++ b/src/Entities/Player.cpp
@@ -245,7 +245,7 @@ void cPlayer::Tick(float a_Dt, cChunk & a_Chunk)
 
 	if (m_Health > 0)  // make sure player is alive
 	{
-		m_World->CollectPickupsByPlayer(this);
+		m_World->CollectPickupsByPlayer(*this);
 
 		if ((m_EatingFinishTick >= 0) && (m_EatingFinishTick <= m_World->GetWorldAge()))
 		{
diff --git a/src/Entities/ProjectileEntity.cpp b/src/Entities/ProjectileEntity.cpp
index acc9bd674..ab25ac30c 100644
--- a/src/Entities/ProjectileEntity.cpp
+++ b/src/Entities/ProjectileEntity.cpp
@@ -424,8 +424,12 @@ void cProjectileEntity::SpawnOn(cClientHandle & a_Client)
 
 
 
-void cProjectileEntity::CollectedBy(cPlayer * a_Dest)
+void cProjectileEntity::CollectedBy(cPlayer & a_Dest)
 {
 	// Overriden in arrow
 	UNUSED(a_Dest);
 }
+
+
+
+
diff --git a/src/Entities/ProjectileEntity.h b/src/Entities/ProjectileEntity.h
index 990136a32..03eda9739 100644
--- a/src/Entities/ProjectileEntity.h
+++ b/src/Entities/ProjectileEntity.h
@@ -59,7 +59,7 @@ public:
 	}
 	
 	/// Called by Chunk when the projectile is eligible for player collection
-	virtual void CollectedBy(cPlayer * a_Dest);
+	virtual void CollectedBy(cPlayer & a_Dest);
 
 	// tolua_begin
 
diff --git a/src/Server.cpp b/src/Server.cpp
index 969ffd693..62f6ba35a 100644
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -450,7 +450,7 @@ bool cServer::Start(void)
 
 bool cServer::Command(cClientHandle & a_Client, AString & a_Cmd)
 {
-	return cRoot::Get()->GetPluginManager()->CallHookChat(a_Client.GetPlayer(), a_Cmd);
+	return cRoot::Get()->GetPluginManager()->CallHookChat(*(a_Client.GetPlayer()), a_Cmd);
 }
 
 
diff --git a/src/Simulator/FireSimulator.cpp b/src/Simulator/FireSimulator.cpp
index 7ae84af7b..d3deee74a 100644
--- a/src/Simulator/FireSimulator.cpp
+++ b/src/Simulator/FireSimulator.cpp
@@ -333,7 +333,7 @@ void cFireSimulator::TrySpreadFire(cChunk * a_Chunk, int a_RelX, int a_RelY, int
 					int a_PosX = x + a_Chunk->GetPosX() * cChunkDef::Width;
 					int a_PosZ = z + a_Chunk->GetPosZ() * cChunkDef::Width;
 					
-					if (cRoot::Get()->GetPluginManager()->CallHookBlockSpread(&m_World, a_PosX, y, a_PosZ, ssFireSpread))
+					if (cRoot::Get()->GetPluginManager()->CallHookBlockSpread(m_World, a_PosX, y, a_PosZ, ssFireSpread))
 					{
 						return;
 					}
@@ -382,7 +382,7 @@ void cFireSimulator::RemoveFuelNeighbors(cChunk * a_Chunk, int a_RelX, int a_Rel
 		}
 
 		bool ShouldReplaceFuel = (m_World.GetTickRandomNumber(MAX_CHANCE_REPLACE_FUEL) < m_ReplaceFuelChance);
-		if (ShouldReplaceFuel && !cRoot::Get()->GetPluginManager()->CallHookBlockSpread(&m_World, AbsX, Y, AbsZ, ssFireSpread))
+		if (ShouldReplaceFuel && !cRoot::Get()->GetPluginManager()->CallHookBlockSpread(m_World, AbsX, Y, AbsZ, ssFireSpread))
 		{
 			Neighbour->SetBlock(X, Y, Z, E_BLOCK_FIRE, 0);
 		}
diff --git a/src/UI/SlotArea.cpp b/src/UI/SlotArea.cpp
index 999bed989..88d9f44fc 100644
--- a/src/UI/SlotArea.cpp
+++ b/src/UI/SlotArea.cpp
@@ -714,7 +714,7 @@ void cSlotAreaCrafting::UpdateRecipe(cPlayer & a_Player)
 {
 	cCraftingGrid   Grid(GetPlayerSlots(a_Player) + 1, m_GridSize, m_GridSize);
 	cCraftingRecipe & Recipe = GetRecipeForPlayer(a_Player);
-	cRoot::Get()->GetCraftingRecipes()->GetRecipe(&a_Player, Grid, Recipe);
+	cRoot::Get()->GetCraftingRecipes()->GetRecipe(a_Player, Grid, Recipe);
 	SetSlot(0, a_Player, Recipe.GetResult());
 	m_ParentWindow.SendSlot(a_Player, this, 0);
 }
@@ -736,7 +736,7 @@ cCraftingRecipe & cSlotAreaCrafting::GetRecipeForPlayer(cPlayer & a_Player)
 	// Not found. Add a new one:
 	cCraftingGrid   Grid(GetPlayerSlots(a_Player) + 1, m_GridSize, m_GridSize);
 	cCraftingRecipe Recipe(Grid);
-	cRoot::Get()->GetCraftingRecipes()->GetRecipe(&a_Player, Grid, Recipe);
+	cRoot::Get()->GetCraftingRecipes()->GetRecipe(a_Player, Grid, Recipe);
 	m_Recipes.push_back(std::make_pair(a_Player.GetUniqueID(), Recipe));
 	return m_Recipes.back().second;
 }
diff --git a/src/World.cpp b/src/World.cpp
index 96afb8cc8..1f9361386 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -2607,7 +2607,7 @@ void cWorld::QueueUnloadUnusedChunks(void)
 
 
 
-void cWorld::CollectPickupsByPlayer(cPlayer * a_Player)
+void cWorld::CollectPickupsByPlayer(cPlayer & a_Player)
 {
 	m_ChunkMap->CollectPickupsByPlayer(a_Player);
 }
@@ -2909,13 +2909,13 @@ bool cWorld::SetSignLines(int a_BlockX, int a_BlockY, int a_BlockZ, const AStrin
 	AString Line2(a_Line2);
 	AString Line3(a_Line3);
 	AString Line4(a_Line4);
-	if (cRoot::Get()->GetPluginManager()->CallHookUpdatingSign(this, a_BlockX, a_BlockY, a_BlockZ, Line1, Line2, Line3, Line4, a_Player))
+	if (cRoot::Get()->GetPluginManager()->CallHookUpdatingSign(*this, a_BlockX, a_BlockY, a_BlockZ, Line1, Line2, Line3, Line4, a_Player))
 	{
 		return false;
 	}
 	if (m_ChunkMap->SetSignLines(a_BlockX, a_BlockY, a_BlockZ, Line1, Line2, Line3, Line4))
 	{
-		cRoot::Get()->GetPluginManager()->CallHookUpdatedSign(this, a_BlockX, a_BlockY, a_BlockZ, Line1, Line2, Line3, Line4, a_Player);
+		cRoot::Get()->GetPluginManager()->CallHookUpdatedSign(*this, a_BlockX, a_BlockY, a_BlockZ, Line1, Line2, Line3, Line4, a_Player);
 		return true;
 	}
 	return false;
@@ -3640,7 +3640,7 @@ bool cWorld::cChunkGeneratorCallbacks::HasChunkAnyClients(int a_ChunkX, int a_Ch
 void cWorld::cChunkGeneratorCallbacks::CallHookChunkGenerating(cChunkDesc & a_ChunkDesc)
 {
 	cPluginManager::Get()->CallHookChunkGenerating(
-		m_World, a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ(), &a_ChunkDesc
+		*m_World, a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ(), &a_ChunkDesc
 	);
 }
 
@@ -3651,7 +3651,7 @@ void cWorld::cChunkGeneratorCallbacks::CallHookChunkGenerating(cChunkDesc & a_Ch
 void cWorld::cChunkGeneratorCallbacks::CallHookChunkGenerated (cChunkDesc & a_ChunkDesc)
 {
 	cPluginManager::Get()->CallHookChunkGenerated(
-		m_World, a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ(), &a_ChunkDesc
+		*m_World, a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ(), &a_ChunkDesc
 	);
 }
 
diff --git a/src/World.h b/src/World.h
index 640aa8bc3..bb43d7fba 100644
--- a/src/World.h
+++ b/src/World.h
@@ -298,7 +298,7 @@ public:
 	/** Queues a task to unload unused chunks onto the tick thread. The prefferred way of unloading*/
 	void QueueUnloadUnusedChunks(void);  // tolua_export
 	
-	void CollectPickupsByPlayer(cPlayer * a_Player);
+	void CollectPickupsByPlayer(cPlayer & a_Player);
 
 	/** Adds the player to the world.
 	Uses a queue to store the player object until the Tick thread processes the addition event.