1 files changed, 52 insertions, 10 deletions

diff --git a/src/Chunk.cpp b/src/Chunk.cpp
index cd7dc698c..116c0f3a0 100644
--- a/src/Chunk.cpp
+++ b/src/Chunk.cpp
@@ -1,3 +1,4 @@
+
 #include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
 
 #ifndef _WIN32
@@ -579,7 +580,7 @@ void cChunk::Tick(float a_Dt)
 	}
 	
 	for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end();)
-	{		
+	{
 		if (!((*itr)->IsMob()))  // Mobs are ticked inside cWorld::TickMobs() (as we don't have to tick them if they are far away from players)
 		{
 			// Tick all entities in this chunk (except mobs):
@@ -594,17 +595,19 @@ void cChunk::Tick(float a_Dt)
 			itr = m_Entities.erase(itr);
 			delete ToDelete;
 		}
-		else if ((*itr)->IsWorldTravellingFrom(m_World))  // Remove all entities that are travelling to another world:
+		else if ((*itr)->IsWorldTravellingFrom(m_World))
 		{
+			// Remove all entities that are travelling to another world
 			MarkDirty();
 			(*itr)->SetWorldTravellingFrom(NULL);
 			itr = m_Entities.erase(itr);
 		}
-		else if (  // If any entity moved out of the chunk, move it to the neighbor:
+		else if (
 			((*itr)->GetChunkX() != m_PosX) ||
 			((*itr)->GetChunkZ() != m_PosZ)
 		)
 		{
+			// The entity moved out of the chunk, move it to the neighbor
 			MarkDirty();
 			MoveEntityToNewChunk(*itr);
 			itr = m_Entities.erase(itr);
@@ -885,14 +888,14 @@ void cChunk::ApplyWeatherToTop()
 				SetBlock(X, Height, Z, E_BLOCK_ICE, 0);
 			}
 			else if (
-					(m_World->IsDeepSnowEnabled()) &&
-					(
-						(TopBlock == E_BLOCK_RED_ROSE) ||
-						(TopBlock == E_BLOCK_YELLOW_FLOWER) ||
-						(TopBlock == E_BLOCK_RED_MUSHROOM) ||
-						(TopBlock == E_BLOCK_BROWN_MUSHROOM)
-					)
+				(m_World->IsDeepSnowEnabled()) &&
+				(
+					(TopBlock == E_BLOCK_RED_ROSE) ||
+					(TopBlock == E_BLOCK_YELLOW_FLOWER) ||
+					(TopBlock == E_BLOCK_RED_MUSHROOM) ||
+					(TopBlock == E_BLOCK_BROWN_MUSHROOM)
 				)
+			)
 			{
 				SetBlock(X, Height, Z, E_BLOCK_SNOW, 0);
 			}
@@ -2127,6 +2130,45 @@ bool cChunk::DoWithBlockEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ, cBloc
 
 
 
+bool cChunk::DoWithRedstonePoweredEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ, cRedstonePoweredCallback & a_Callback)
+{
+	// The blockentity list is locked by the parent chunkmap's CS
+	for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2)
+	{
+		++itr2;
+		if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ))
+		{
+			continue;
+		}
+		switch ((*itr)->GetBlockType())
+		{
+			case E_BLOCK_DROPPER:
+			case E_BLOCK_DISPENSER:
+			case E_BLOCK_NOTE_BLOCK:
+			{
+				break;
+			}
+			default:
+			{
+				// There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out
+				return false;
+			}
+		}
+		
+		if (a_Callback.Item((cRedstonePoweredEntity *)*itr))
+		{
+			return false;
+		}
+		return true;
+	}  // for itr - m_BlockEntitites[]
+	
+	// Not found:
+	return false;
+}
+
+
+
+
 bool cChunk::DoWithBeaconAt(int a_BlockX, int a_BlockY, int a_BlockZ, cBeaconCallback & a_Callback)
 {
 	// The blockentity list is locked by the parent chunkmap's CS