7 files changed, 128 insertions, 16 deletions

diff --git a/source/Chunk.cpp b/source/Chunk.cpp
index 62d411b0c..7bff3fdc9 100644
--- a/source/Chunk.cpp
+++ b/source/Chunk.cpp
@@ -1607,6 +1607,61 @@ void cChunk::FastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockT
 
 
 
+void cChunk::SetServerBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta)
+{
+	ASSERT(!((a_RelX < 0) || (a_RelX >= Width) || (a_RelY < 0) || (a_RelY >= Height) || (a_RelZ < 0) || (a_RelZ >= Width)));
+
+	ASSERT(IsValid());
+	
+	const int index = MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ);
+	const BLOCKTYPE OldBlockType = cChunkDef::GetBlock(m_BlockTypes, index);
+	const BLOCKTYPE OldBlockMeta = GetNibble(m_BlockMeta, index);
+	if ((OldBlockType == a_BlockType) && (OldBlockMeta == a_BlockMeta))
+	{
+		return;
+	}
+
+	MarkDirty();
+	
+	m_BlockTypes[index] = a_BlockType;
+
+	SetNibble(m_BlockMeta, index, a_BlockMeta);
+
+	// ONLY recalculate lighting if it's necessary!
+	if(
+		(g_BlockLightValue[OldBlockType ]        != g_BlockLightValue[a_BlockType]) ||
+		(g_BlockSpreadLightFalloff[OldBlockType] != g_BlockSpreadLightFalloff[a_BlockType]) ||
+		(g_BlockTransparent[OldBlockType]        != g_BlockTransparent[a_BlockType])
+	)
+	{
+		m_IsLightValid = false;
+	}
+
+	// Update heightmap, if needed:
+	if (a_RelY >= m_HeightMap[a_RelX + a_RelZ * Width])
+	{
+		if (a_BlockType != E_BLOCK_AIR)
+		{
+			m_HeightMap[a_RelX + a_RelZ * Width] = (unsigned char)a_RelY;
+		}
+		else
+		{
+			for (int y = a_RelY - 1; y > 0; --y)
+			{
+				if (m_BlockTypes[MakeIndexNoCheck(a_RelX, y, a_RelZ)] != E_BLOCK_AIR)
+				{
+					m_HeightMap[a_RelX + a_RelZ * Width] = (unsigned char)y;
+					break;
+				}
+			}  // for y - column in m_BlockData
+		}
+	}
+}
+
+
+
+
+
 void cChunk::SendBlockTo(int a_RelX, int a_RelY, int a_RelZ, cClientHandle * a_Client)
 {
 	// The coords must be valid, because the upper level already does chunk lookup. No need to check them again.
diff --git a/source/Chunk.h b/source/Chunk.h
index c4eeab6ae..61f11d6d5 100644
--- a/source/Chunk.h
+++ b/source/Chunk.h
@@ -148,6 +148,8 @@ public:
 	void      GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta);
 	void      GetBlockInfo    (int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight);
 	
+	void SetServerBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta );
+
 	/** Returns the chunk into which the specified block belongs, by walking the neighbors.
 	Will return self if appropriate. Returns NULL if not reachable through neighbors.
 	*/
diff --git a/source/ChunkMap.cpp b/source/ChunkMap.cpp
index 5a16495e6..4180ae327 100644
--- a/source/ChunkMap.cpp
+++ b/source/ChunkMap.cpp
@@ -1171,6 +1171,24 @@ void cChunkMap::SetBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_B
 
 
 
+void cChunkMap::SetServerBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta)
+{
+	int ChunkX, ChunkZ, X = a_BlockX, Y = a_BlockY, Z = a_BlockZ;
+	cChunkDef::AbsoluteToRelative( X, Y, Z, ChunkX, ChunkZ );
+
+	cCSLock Lock(m_CSLayers);
+	cChunkPtr Chunk = GetChunk( ChunkX, ZERO_CHUNK_Y, ChunkZ );
+	if ((Chunk != NULL) && Chunk->IsValid())
+	{
+		Chunk->SetServerBlock(X, Y, Z, a_BlockType, a_BlockMeta );
+		m_World->GetSimulatorManager()->WakeUp(a_BlockX, a_BlockY, a_BlockZ, Chunk);
+	}
+}
+
+
+
+
+
 bool cChunkMap::GetBlockTypeMeta(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta)
 {
 	int ChunkX, ChunkZ, X = a_BlockX, Y = a_BlockY, Z = a_BlockZ;
diff --git a/source/ChunkMap.h b/source/ChunkMap.h
index 208d2824e..07ad4feaa 100644
--- a/source/ChunkMap.h
+++ b/source/ChunkMap.h
@@ -135,6 +135,7 @@ public:
 	NIBBLETYPE GetBlockBlockLight(int a_BlockX, int a_BlockY, int a_BlockZ);
 	void       SetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockMeta);
 	void       SetBlock          (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta);
+	void       SetServerBlock          (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta);
 	bool       GetBlockTypeMeta  (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta);
 	bool       GetBlockInfo      (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight);
 
diff --git a/source/Piston.cpp b/source/Piston.cpp
index 058f92a0e..4c8d56261 100644
--- a/source/Piston.cpp
+++ b/source/Piston.cpp
@@ -114,7 +114,7 @@ void cPiston::ExtendPiston( int pistx, int pisty, int pistz )
 		{
 			AddDir(pistx, pisty, pistz, pistonMeta & 7, -1) //Move one set of coords one back from breakable dropped block
 			m_World->GetBlockTypeMeta(pistx, pisty, pistz, currBlock, currBlockMeta); //Get the block
-			m_World->SetBlock( oldx, oldy, oldz, currBlock, currBlockMeta); //Set the block at the location of the original coords
+			m_World->SetServerBlock( oldx, oldy, oldz, currBlock, currBlockMeta); //Set the block at the location of the original coords
 			oldx = pistx; //Shift the selectors down a block and repeat
 			oldy = pisty;
 			oldz = pistz;
@@ -126,10 +126,19 @@ void cPiston::ExtendPiston( int pistx, int pisty, int pistz )
 	int extz = pistz;
 
 	AddDir(pistx, pisty, pistz, pistonMeta & 7, -1) //Move back one block to the piston base
-	m_World->BroadcastBlockAction(pistx, pisty, pistz, 0, pistonMeta, E_BLOCK_PISTON); //Set the base
+
+	if (pistonBlock == E_BLOCK_STICKY_PISTON)
+	{
+		m_World->BroadcastBlockAction(pistx, pisty, pistz, 0, pistonMeta, E_BLOCK_STICKY_PISTON);
+	}
+	else
+	{
+		m_World->BroadcastBlockAction(pistx, pisty, pistz, 0, pistonMeta, E_BLOCK_PISTON);
+	}
+
 	m_World->BroadcastSoundEffect("tile.piston.out", pistx * 8, pisty * 8, pistz * 8, 0.5f, 0.7f);
-	m_World->FastSetBlock( pistx, pisty, pistz, pistonBlock, pistonMeta | 0x8 );
-	m_World->SetBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, isSticky + pistonMeta); //Set the arm
+	m_World->FastSetBlock( pistx, pisty, pistz, pistonBlock, pistonMeta | 0x8 ); //Set the base
+	m_World->SetServerBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, isSticky + pistonMeta); //Set the arm
 }
 
 
@@ -146,9 +155,18 @@ void cPiston::RetractPiston( int pistx, int pisty, int pistz )
 		// Already retracted, bail out
 		return;
 	}
-	m_World->BroadcastBlockAction(pistx, pisty, pistz, 1, pistonMeta & ~(8), E_BLOCK_PISTON);
+	
+	if (pistonBlock == E_BLOCK_STICKY_PISTON)
+	{
+		m_World->BroadcastBlockAction(pistx, pisty, pistz, 1, pistonMeta & ~(8), E_BLOCK_STICKY_PISTON);
+	}
+	else
+	{
+		m_World->BroadcastBlockAction(pistx, pisty, pistz, 1, pistonMeta & ~(8), E_BLOCK_PISTON);
+	}
+
 	m_World->BroadcastSoundEffect("tile.piston.in", pistx * 8, pisty * 8, pistz * 8, 0.5f, 0.7f);
-	m_World->FastSetBlock(pistx, pisty, pistz, pistonBlock, pistonMeta & ~(8)); //Set the base
+	m_World->SetServerBlock(pistx, pisty, pistz, pistonBlock, pistonMeta & ~(8)); //Set the base
 
 	AddDir(pistx, pisty, pistz, pistonMeta & 7, 1) //Move forwards to the extension coord
 	if (m_World->GetBlock(pistx, pisty, pistz) != E_BLOCK_PISTON_EXTENSION)
@@ -173,17 +191,16 @@ void cPiston::RetractPiston( int pistx, int pisty, int pistz )
 		)
 		{
 			// These cannot be moved by the sticky piston, bail out
-			m_World->SetBlock(pistx, pisty, pistz, E_BLOCK_AIR, 0);
+			m_World->SetServerBlock(pistx, pisty, pistz, E_BLOCK_AIR, 0);
 			return;
 		}
 
-		m_World->SetBlock(pistx, pisty, pistz, tempblock, tempmeta);
-		m_World->SetBlock(tempx, tempy, tempz, E_BLOCK_AIR, 0);
+		m_World->SetServerBlock(pistx, pisty, pistz, tempblock, tempmeta);
+		m_World->SetServerBlock(tempx, tempy, tempz, E_BLOCK_AIR, 0);
 	}
 	else
 	{
-
-		m_World->SetBlock(pistx, pisty, pistz, E_BLOCK_AIR, 0);
+		m_World->SetServerBlock(pistx, pisty, pistz, E_BLOCK_AIR, 0);
 	}
 }
 
diff --git a/source/World.cpp b/source/World.cpp
index 6b82dce0f..97186fa24 100644
--- a/source/World.cpp
+++ b/source/World.cpp
@@ -1385,6 +1385,21 @@ void cWorld::FastSetBlock(int a_X, int a_Y, int a_Z, BLOCKTYPE a_BlockType, NIBB
 
 
 
+void cWorld::SetServerBlock(int a_X, int a_Y, int a_Z, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+	if (a_BlockType == E_BLOCK_AIR)
+	{
+		BlockHandler(GetBlock(a_X, a_Y, a_Z))->OnDestroyed(this, a_X, a_Y, a_Z);
+	}
+	m_ChunkMap->SetServerBlock(a_X, a_Y, a_Z, a_BlockType, a_BlockMeta);
+
+	BlockHandler(a_BlockType)->OnPlaced(this, a_X, a_Y, a_Z, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
 BLOCKTYPE cWorld::GetBlock(int a_X, int a_Y, int a_Z)
 {
 	// First check if it isn't queued in the m_FastSetBlockQueue:
@@ -2635,15 +2650,18 @@ void cWorld::TabCompleteUserName(const AString & a_Text, AStringVector & a_Resul
 	cCSLock Lock(m_CSPlayers);
 	for (cPlayerList::iterator itr = m_Players.begin(), end = m_Players.end(); itr != end; ++itr)
 	{
-		unsigned LastSpace = a_Text.find_last_of(" ");
-		std::string LastWord = a_Text.substr(LastSpace + 1, a_Text.length());
+		size_t LastSpace = a_Text.find_last_of(" "); //Find the position of the last space
+		
+		std::string LastWord = a_Text.substr(LastSpace + 1, a_Text.length()); //Find the last word
 		std::string PlayerName ((*itr)->GetName());
-		std::size_t Found = PlayerName.find(LastWord);
+		std::size_t Found = PlayerName.find(LastWord); //Try to find last word in playername
+		
 		if (Found!=0)
 		{
-			continue;
+			continue; //No match
 		}
-		a_Results.push_back((*itr)->GetName());
+		
+		a_Results.push_back((*itr)->GetName()); //Match!
 	}
 }
 
diff --git a/source/World.h b/source/World.h
index 5d3de06d0..34e350a04 100644
--- a/source/World.h
+++ b/source/World.h
@@ -313,6 +313,7 @@ public:
 	// tolua_begin
 	void       SetBlock          (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
 	void       FastSetBlock      (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+	void       SetServerBlock      (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
 	BLOCKTYPE  GetBlock          (int a_BlockX, int a_BlockY, int a_BlockZ);
 	NIBBLETYPE GetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ);
 	void       SetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_MetaData);