2 files changed, 149 insertions, 180 deletions

diff --git a/src/Simulator/IncrementalRedstoneSimulator.cpp b/src/Simulator/IncrementalRedstoneSimulator.cpp
index 50cac8d7e..e0640a409 100644
--- a/src/Simulator/IncrementalRedstoneSimulator.cpp
+++ b/src/Simulator/IncrementalRedstoneSimulator.cpp
@@ -69,18 +69,19 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 	// Checking only when a block is changed, as opposed to every tick, also improves performance
 
 	PoweredBlocksList * PoweredBlocks = a_Chunk->GetRedstoneSimulatorPoweredBlocksList();
-	for (PoweredBlocksList::iterator itr = PoweredBlocks->begin(); itr != PoweredBlocks->end(); ++itr)
+	for (PoweredBlocksList::iterator itr = PoweredBlocks->begin(); itr != PoweredBlocks->end();)
 	{
 		if (!itr->a_SourcePos.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ)))
 		{
+			++itr;
 			continue;
 		}
 
 		if (!IsPotentialSource(Block))
 		{
 			LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from powered blocks list as it no longer connected to a source", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
-			PoweredBlocks->erase(itr);
-			break;
+			itr = PoweredBlocks->erase(itr);
+			continue;
 		}
 		else if (
 			// Changeable sources
@@ -93,9 +94,10 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 			)
 		{
 			LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from powered blocks list due to present/past metadata mismatch", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
-			PoweredBlocks->erase(itr);
-			break;
+			itr = PoweredBlocks->erase(itr);
+			continue;
 		}
+		++itr;
 	}
 
 	LinkedBlocksList * LinkedPoweredBlocks = a_Chunk->GetRedstoneSimulatorLinkedBlocksList();
@@ -532,128 +534,95 @@ void cIncrementalRedstoneSimulator::HandleRedstoneWire(int a_BlockX, int a_Block
 	};
 
 	// Check to see if directly beside a power source
-	if (IsWirePowered(a_BlockX, a_BlockY, a_BlockZ))
+	unsigned char MyPower;
+	if (!IsWirePowered(a_BlockX, a_BlockY, a_BlockZ, MyPower))
 	{
-		m_World.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, 15); // Maximum power
+		m_World.SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, 0);
+		return;
 	}
-	else
+	
+	m_World.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, MyPower); // Maximum power
+
+	if (MyPower < 2)
 	{
-		NIBBLETYPE MyMeta = m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ);
-		NIBBLETYPE MetaToSet = MyMeta;
-		int TimesMetaSmaller = 0, TimesFoundAWire = 0;
+		return;
+	}
+
+	MyPower--;
 
-		for (size_t i = 0; i < ARRAYCOUNT(gCrossCoords); i++) // Loop through all directions to transfer or receive power
+	for (size_t i = 0; i < ARRAYCOUNT(gCrossCoords); i++) // Loop through all directions to transfer or receive power
+	{
+		if ((i >= 4) && (i <= 7)) // If we are currently checking for wire surrounding ourself one block above...
 		{
-			if ((i >= 4) && (i <= 7)) // If we are currently checking for wire surrounding ourself one block above...
+			if (cBlockInfo::IsSolid(m_World.GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ))) // If there is something solid above us (wire cut off)...
 			{
-				if (cBlockInfo::IsSolid(m_World.GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ))) // If there is something solid above us (wire cut off)...
-				{
-					continue; // We don't receive power from that wire
-				}
+				continue; // We don't receive power from that wire
 			}
-			else if ((i >= 8) && (i <= 11)) // See above, but this is for wire below us
+		}
+		else if ((i >= 8) && (i <= 11)) // See above, but this is for wire below us
+		{
+			if (cBlockInfo::IsSolid(m_World.GetBlock(a_BlockX, a_BlockY - 1, a_BlockZ)))
 			{
-				if (cBlockInfo::IsSolid(m_World.GetBlock(a_BlockX + gCrossCoords[i].x, a_BlockY + gCrossCoords[i].y + 1, a_BlockZ + gCrossCoords[i].z)))
-				{
-					continue;
-				}
+				continue;
 			}
-
-			BLOCKTYPE SurroundType;
-			NIBBLETYPE SurroundMeta;
-			m_World.GetBlockTypeMeta(a_BlockX + gCrossCoords[i].x, a_BlockY + gCrossCoords[i].y, a_BlockZ + gCrossCoords[i].z, SurroundType, SurroundMeta);
-
-			if (SurroundType == E_BLOCK_REDSTONE_WIRE)
-			{
-				TimesFoundAWire++;
-
-				if (SurroundMeta > 1) // Wires of power 1 or 0 cannot transfer power TO ME, don't bother checking
-				{
-					// Does surrounding wire have a higher power level than the highest so far (MetaToSet)?
-					// >= to fix a bug where wires bordering each other with the same power level will appear (in terms of meta) to power each other, when they aren't actually in the powered list
-					if (SurroundMeta >= MetaToSet)
-					{
-						MetaToSet = SurroundMeta - 1; // To improve performance
-					}
-				}
-				
-				if (SurroundMeta < MyMeta) // Go through all surroundings to see if self power is larger than everyone else's
-				{
-					TimesMetaSmaller++;
-				}
-			}			
 		}
 
-		if ((TimesMetaSmaller == TimesFoundAWire) && (MyMeta != 0))
-		{
-			// All surrounding metas were smaller - self must have been a wire that was
-			// transferring power to other wires around.
-			// However, self not directly powered anymore, so source must have been removed,
-			// therefore, self must be set to meta zero
-			m_World.SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, 0); // SetMeta & WakeUpSims doesn't seem to work here, so SetBlock
-			return; // No need to process block power sets because self not powered
-		}
-		else if (MyMeta != MetaToSet)
+		if (m_World.GetBlock(a_BlockX + gCrossCoords[i].x, a_BlockY + gCrossCoords[i].y, a_BlockZ + gCrossCoords[i].z) == E_BLOCK_REDSTONE_WIRE)
 		{
-			m_World.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, MetaToSet);
+			SetBlockPowered(a_BlockX + gCrossCoords[i].x, a_BlockY + gCrossCoords[i].y, a_BlockZ + gCrossCoords[i].z, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
 		}
 	}
 
-	if (m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) != 0) // A powered wire
+	for (size_t i = 0; i < ARRAYCOUNT(gSideCoords); i++) // Look for repeaters immediately surrounding self and try to power them
 	{
-		for (size_t i = 0; i < ARRAYCOUNT(gSideCoords); i++) // Look for repeaters immediately surrounding self and try to power them
+		if (m_World.GetBlock(a_BlockX + gSideCoords[i].x, a_BlockY + gSideCoords[i].y, a_BlockZ + gSideCoords[i].z) == E_BLOCK_REDSTONE_REPEATER_OFF)
 		{
-			if (m_World.GetBlock(a_BlockX + gSideCoords[i].x, a_BlockY + gSideCoords[i].y, a_BlockZ + gSideCoords[i].z) == E_BLOCK_REDSTONE_REPEATER_OFF)
-			{
-				SetBlockPowered(a_BlockX + gSideCoords[i].x, a_BlockY + gSideCoords[i].y, a_BlockZ + gSideCoords[i].z, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-			}
+			SetBlockPowered(a_BlockX + gSideCoords[i].x, a_BlockY + gSideCoords[i].y, a_BlockZ + gSideCoords[i].z, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
 		}
+	}
 
-		// Wire still powered, power blocks beneath
-		SetBlockPowered(a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-		SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_YM, E_BLOCK_REDSTONE_WIRE);
+	// Wire still powered, power blocks beneath
+	SetBlockPowered(a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+	SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_YM, E_BLOCK_REDSTONE_WIRE, MyPower);
 
-		switch (GetWireDirection(a_BlockX, a_BlockY, a_BlockZ))
+	switch (GetWireDirection(a_BlockX, a_BlockY, a_BlockZ))
+	{
+		case REDSTONE_NONE:
 		{
-			case REDSTONE_NONE:
-			{
-				SetBlockPowered(a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetBlockPowered(a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetBlockPowered(a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XM, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XP, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_YM, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZM, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZP, E_BLOCK_REDSTONE_WIRE);
-				break;
-			}
-			case REDSTONE_X_POS:
-			{
-				SetBlockPowered(a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XP, E_BLOCK_REDSTONE_WIRE);
-				break;
-			}
-			case REDSTONE_X_NEG:
-			{
-				SetBlockPowered(a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XM, E_BLOCK_REDSTONE_WIRE);
-				break;
-			}
-			case REDSTONE_Z_POS:
-			{
-				SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZP, E_BLOCK_REDSTONE_WIRE);
-				break;
-			}
-			case REDSTONE_Z_NEG:
-			{
-				SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE);
-				SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZM, E_BLOCK_REDSTONE_WIRE);
-				break;
-			}
+			SetBlockPowered(a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetBlockPowered(a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XM, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XP, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZM, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZP, E_BLOCK_REDSTONE_WIRE, MyPower);
+			break;
+		}
+		case REDSTONE_X_POS:
+		{
+			SetBlockPowered(a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XP, E_BLOCK_REDSTONE_WIRE, MyPower);
+			break;
+		}
+		case REDSTONE_X_NEG:
+		{
+			SetBlockPowered(a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_XM, E_BLOCK_REDSTONE_WIRE, MyPower);
+			break;
+		}
+		case REDSTONE_Z_POS:
+		{
+			SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZP, E_BLOCK_REDSTONE_WIRE, MyPower);
+			break;
+		}
+		case REDSTONE_Z_NEG:
+		{
+			SetBlockPowered(a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_REDSTONE_WIRE, MyPower);
+			SetDirectionLinkedPowered(a_BlockX, a_BlockY, a_BlockZ, BLOCK_FACE_ZM, E_BLOCK_REDSTONE_WIRE, MyPower);
+			break;
 		}
 	}
 }
@@ -1323,28 +1292,23 @@ bool cIncrementalRedstoneSimulator::IsPistonPowered(int a_BlockX, int a_BlockY,
 
 
 
-bool cIncrementalRedstoneSimulator::IsWirePowered(int a_BlockX, int a_BlockY, int a_BlockZ)
+bool cIncrementalRedstoneSimulator::IsWirePowered(int a_BlockX, int a_BlockY, int a_BlockZ, unsigned char & a_PowerLevel)
 {
-	for (PoweredBlocksList::const_iterator itr = m_PoweredBlocks->begin(); itr != m_PoweredBlocks->end(); ++itr)
+	a_PowerLevel = 0;
+
+	for (auto itr = m_PoweredBlocks->cbegin(); itr != m_PoweredBlocks->cend(); ++itr) // Check powered list
 	{
 		if (!itr->a_BlockPos.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ))) { continue; }
-
-		if (m_World.GetBlock(itr->a_SourcePos) != E_BLOCK_REDSTONE_WIRE)
-		{
-			return true;
-		}
+		a_PowerLevel = std::max(a_PowerLevel, itr->a_PowerLevel);
 	}
 
-	for (LinkedBlocksList::const_iterator itr = m_LinkedPoweredBlocks->begin(); itr != m_LinkedPoweredBlocks->end(); ++itr)
+	for (auto itr = m_LinkedPoweredBlocks->cbegin(); itr != m_LinkedPoweredBlocks->cend(); ++itr) // Check linked powered list
 	{
 		if (!itr->a_BlockPos.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ))) { continue; }
-
-		if (m_World.GetBlock(itr->a_SourcePos) != E_BLOCK_REDSTONE_WIRE)
-		{
-			return true;
-		}
+		a_PowerLevel = std::max(a_PowerLevel, itr->a_PowerLevel);
 	}
-	return false; // Source was in front of the piston's front face
+
+	return (a_PowerLevel != 0); // Source was in front of the piston's front face
 }
 
 
@@ -1374,7 +1338,7 @@ bool cIncrementalRedstoneSimulator::AreCoordsSimulated(int a_BlockX, int a_Block
 
 
 
-void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Direction, BLOCKTYPE a_SourceType)
+void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Direction, BLOCKTYPE a_SourceType, unsigned char a_PowerLevel)
 {
 	switch (a_Direction)
 	{
@@ -1382,11 +1346,11 @@ void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int
 		{
 			BLOCKTYPE MiddleBlock = m_World.GetBlock(a_BlockX - 1, a_BlockY, a_BlockZ);
 
-			SetBlockLinkedPowered(a_BlockX - 2, a_BlockY, a_BlockZ, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY + 1, a_BlockZ, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY - 1, a_BlockZ, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ + 1, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ - 1, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
+			SetBlockLinkedPowered(a_BlockX - 2, a_BlockY, a_BlockZ, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY + 1, a_BlockZ, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY - 1, a_BlockZ, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ + 1, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ - 1, a_BlockX - 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
 
 			break;
 		}
@@ -1394,11 +1358,11 @@ void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int
 		{
 			BLOCKTYPE MiddleBlock = m_World.GetBlock(a_BlockX + 1, a_BlockY, a_BlockZ);
 
-			SetBlockLinkedPowered(a_BlockX + 2, a_BlockY, a_BlockZ, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY + 1, a_BlockZ, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY - 1, a_BlockZ, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ + 1, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ - 1, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
+			SetBlockLinkedPowered(a_BlockX + 2, a_BlockY, a_BlockZ, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY + 1, a_BlockZ, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY - 1, a_BlockZ, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ + 1, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ - 1, a_BlockX + 1, a_BlockY, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
 
 			break;
 		}
@@ -1406,11 +1370,11 @@ void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int
 		{
 			BLOCKTYPE MiddleBlock = m_World.GetBlock(a_BlockX, a_BlockY - 1, a_BlockZ);
 
-			SetBlockLinkedPowered(a_BlockX, a_BlockY - 2, a_BlockZ, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ + 1, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ - 1, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY - 2, a_BlockZ, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ + 1, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ - 1, a_BlockX, a_BlockY - 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
 
 			break;
 		}
@@ -1418,11 +1382,11 @@ void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int
 		{
 			BLOCKTYPE MiddleBlock = m_World.GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ);
 
-			SetBlockLinkedPowered(a_BlockX, a_BlockY + 2, a_BlockZ, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ + 1, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ - 1, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY + 2, a_BlockZ, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ + 1, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ - 1, a_BlockX, a_BlockY + 1, a_BlockZ, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
 
 			break;
 		}
@@ -1430,11 +1394,11 @@ void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int
 		{
 			BLOCKTYPE MiddleBlock = m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ - 1);
 						
-			SetBlockLinkedPowered(a_BlockX, a_BlockY, a_BlockZ - 2, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY, a_BlockZ - 2, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ - 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
 
 			break;
 		}
@@ -1442,11 +1406,11 @@ void cIncrementalRedstoneSimulator::SetDirectionLinkedPowered(int a_BlockX, int
 		{
 			BLOCKTYPE MiddleBlock = m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ + 1);
 			
-			SetBlockLinkedPowered(a_BlockX, a_BlockY, a_BlockZ + 2, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
-			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY, a_BlockZ + 2, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX + 1, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX - 1, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY + 1, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
+			SetBlockLinkedPowered(a_BlockX, a_BlockY - 1, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ + 1, a_BlockX, a_BlockY, a_BlockZ, a_SourceType, MiddleBlock, a_PowerLevel);
 
 			break;
 		}
@@ -1487,7 +1451,7 @@ void cIncrementalRedstoneSimulator::SetAllDirsAsPowered(int a_BlockX, int a_Bloc
 
 
 
-void cIncrementalRedstoneSimulator::SetBlockPowered(int a_BlockX, int a_BlockY, int a_BlockZ, int a_SourceX, int a_SourceY, int a_SourceZ, BLOCKTYPE a_SourceBlock)
+void cIncrementalRedstoneSimulator::SetBlockPowered(int a_BlockX, int a_BlockY, int a_BlockZ, int a_SourceX, int a_SourceY, int a_SourceZ, BLOCKTYPE a_SourceBlock, unsigned char a_PowerLevel)
 {
 	BLOCKTYPE Block = m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ);
 	if (Block == E_BLOCK_AIR)
@@ -1497,7 +1461,6 @@ void cIncrementalRedstoneSimulator::SetBlockPowered(int a_BlockX, int a_BlockY,
 	}
 
 	PoweredBlocksList * Powered = m_Chunk->GetNeighborChunk(a_BlockX, a_BlockZ)->GetRedstoneSimulatorPoweredBlocksList();
-
 	for (PoweredBlocksList::const_iterator itr = Powered->begin(); itr != Powered->end(); ++itr) // Check powered list
 	{
 		if (
@@ -1510,9 +1473,23 @@ void cIncrementalRedstoneSimulator::SetBlockPowered(int a_BlockX, int a_BlockY,
 		}
 	}
 
+	PoweredBlocksList * OtherPowered = m_Chunk->GetNeighborChunk(a_SourceX, a_SourceZ)->GetRedstoneSimulatorPoweredBlocksList();
+	for (PoweredBlocksList::const_iterator itr = OtherPowered->begin(); itr != OtherPowered->end(); ++itr) // Check powered list
+	{
+		if (
+			itr->a_BlockPos.Equals(Vector3i(a_SourceX, a_SourceY, a_SourceZ)) &&
+			itr->a_SourcePos.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ))
+			)
+		{
+			// Powered wires try to power their source - don't let them!
+			return;
+		}
+	}
+
 	sPoweredBlocks RC;
 	RC.a_BlockPos = Vector3i(a_BlockX, a_BlockY, a_BlockZ);
 	RC.a_SourcePos = Vector3i(a_SourceX, a_SourceY, a_SourceZ);
+	RC.a_PowerLevel = a_PowerLevel;
 	Powered->push_back(RC);
 }
 
@@ -1524,7 +1501,7 @@ void cIncrementalRedstoneSimulator::SetBlockLinkedPowered(
 	int a_BlockX,  int a_BlockY,  int a_BlockZ,
 	int a_MiddleX, int a_MiddleY, int a_MiddleZ,
 	int a_SourceX, int a_SourceY, int a_SourceZ,
-	BLOCKTYPE a_SourceBlock, BLOCKTYPE a_MiddleBlock
+	BLOCKTYPE a_SourceBlock, BLOCKTYPE a_MiddleBlock, unsigned char a_PowerLevel
 )
 {
 	BLOCKTYPE DestBlock = m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ);
@@ -1539,7 +1516,6 @@ void cIncrementalRedstoneSimulator::SetBlockLinkedPowered(
 	}
 
 	LinkedBlocksList * Linked = m_Chunk->GetNeighborChunk(a_BlockX, a_BlockZ)->GetRedstoneSimulatorLinkedBlocksList();
-
 	for (LinkedBlocksList::const_iterator itr = Linked->begin(); itr != Linked->end(); ++itr) // Check linked powered list
 	{
 		if (
@@ -1557,6 +1533,7 @@ void cIncrementalRedstoneSimulator::SetBlockLinkedPowered(
 	RC.a_BlockPos = Vector3i(a_BlockX, a_BlockY, a_BlockZ);
 	RC.a_MiddlePos = Vector3i(a_MiddleX, a_MiddleY, a_MiddleZ);
 	RC.a_SourcePos = Vector3i(a_SourceX, a_SourceY, a_SourceZ);
+	RC.a_PowerLevel = a_PowerLevel;
 	Linked->push_back(RC);
 }
 
@@ -1621,7 +1598,7 @@ void cIncrementalRedstoneSimulator::QueueRepeaterPowerChange(int a_BlockX, int a
 	RC.a_BlockPos = Vector3i(a_BlockX, a_BlockY, a_BlockZ);
 	
 	// Gets the top two bits (delay time), shifts them into the lower two bits, and adds one (meta 0 = 1 tick; 1 = 2 etc.)
-	// * 2 because apparently, MCS ticks are way faster than vanilla ticks, so repeater aren't noticeably delayed
+	// * 2 because in MCS, 1 redstone tick = 1 world tick, but in Vanilla, 1 redstone tick = 2 world ticks, and we need to maintain compatibility
 	RC.a_DelayTicks = (((a_Meta & 0xC) >> 0x2) + 1) * 2;
 
 	RC.a_ElapsedTicks = 0;
@@ -1697,12 +1674,3 @@ bool cIncrementalRedstoneSimulator::IsLeverOn(NIBBLETYPE a_BlockMeta)
 
 
 
-
-bool cIncrementalRedstoneSimulator::IsButtonOn(NIBBLETYPE a_BlockMeta)
-{
-	return IsLeverOn(a_BlockMeta);
-}
-
-
-
-
diff --git a/src/Simulator/IncrementalRedstoneSimulator.h b/src/Simulator/IncrementalRedstoneSimulator.h
index f93f86898..21bf11887 100644
--- a/src/Simulator/IncrementalRedstoneSimulator.h
+++ b/src/Simulator/IncrementalRedstoneSimulator.h
@@ -40,27 +40,29 @@ private:
 	{
 		Vector3i a_BlockPos; // Position of powered block
 		Vector3i a_SourcePos; // Position of source powering the block at a_BlockPos
+		unsigned char a_PowerLevel;
 	};
 
 	struct sLinkedPoweredBlocks // Define structure of the indirectly powered blocks list (i.e. repeaters powering through a block to the block at the other side)
 	{
 		Vector3i a_BlockPos;
-		Vector3i a_MiddlePos;
+		Vector3i a_MiddlePos; // Position of block that is betwixt a source and the destination
 		Vector3i a_SourcePos;
+		unsigned char a_PowerLevel;
 	};
 
-	struct sSimulatedPlayerToggleableList
+	struct sSimulatedPlayerToggleableList // Define structure of the list containing simulate-on-update blocks (such as trapdoors that respond once to a block update, and can be toggled by a player)
 	{
 		Vector3i a_BlockPos;
-		bool WasLastStatePowered;
+		bool WasLastStatePowered; // Was the last state powered or not? Determines whether a source update has happened and if I should resimulate
 	};
 
-	struct sRepeatersDelayList
+	struct sRepeatersDelayList // Define structure of list containing repeaters' delay states
 	{
 		Vector3i a_BlockPos;
-		unsigned char a_DelayTicks;
-		unsigned char a_ElapsedTicks;
-		bool ShouldPowerOn;
+		unsigned char a_DelayTicks; // For how many ticks should the repeater delay
+		unsigned char a_ElapsedTicks; // How much of the previous has been elapsed?
+		bool ShouldPowerOn; // What happens when the delay time is fulfilled?
 	};
 
 public:
@@ -132,13 +134,13 @@ private:
 
 	/* ====== Helper functions ====== */
 	/** Marks a block as powered */
-	void SetBlockPowered(int a_BlockX, int a_BlockY, int a_BlockZ, int a_SourceX, int a_SourceY, int a_SourceZ, BLOCKTYPE a_SourceBlock);
+	void SetBlockPowered(int a_BlockX, int a_BlockY, int a_BlockZ, int a_SourceX, int a_SourceY, int a_SourceZ, BLOCKTYPE a_SourceBlock, unsigned char a_PowerLevel = 15);
 	/** Marks a block as being powered through another block */
-	void SetBlockLinkedPowered(int a_BlockX, int a_BlockY, int a_BlockZ, int a_MiddleX, int a_MiddleY, int a_MiddleZ, int a_SourceX, int a_SourceY, int a_SourceZ, BLOCKTYPE a_SourceBlock, BLOCKTYPE a_MiddeBlock);
+	void SetBlockLinkedPowered(int a_BlockX, int a_BlockY, int a_BlockZ, int a_MiddleX, int a_MiddleY, int a_MiddleZ, int a_SourceX, int a_SourceY, int a_SourceZ, BLOCKTYPE a_SourceBlock, BLOCKTYPE a_MiddeBlock, unsigned char a_PowerLevel = 15);
 	/** Marks a block as simulated, who should not be simulated further unless their power state changes, to accomodate a player manually toggling the block without triggering the simulator toggling it back */
 	void SetPlayerToggleableBlockAsSimulated(int a_BlockX, int a_BlockY, int a_BlockZ, bool WasLastStatePowered);
 	/** Marks the second block in a direction as linked powered */
-	void SetDirectionLinkedPowered(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Direction, BLOCKTYPE a_SourceBlock);
+	void SetDirectionLinkedPowered(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Direction, BLOCKTYPE a_SourceBlock, unsigned char a_PowerLevel = 15);
 	/** Marks all blocks immediately surrounding a coordinate as powered */
 	void SetAllDirsAsPowered(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_SourceBlock);
 	/** Queues a repeater to be powered or unpowered */
@@ -159,15 +161,14 @@ private:
 	/** Returns if a piston is powered */
 	bool IsPistonPowered(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_Meta);
 	/** Returns if a wire is powered
-		The only diffence between this and a normal AreCoordsPowered is that this function checks for a wire powering another wire
-	*/
-	bool IsWirePowered(int a_BlockX, int a_BlockY, int a_BlockZ);
+	The only diffence between this and a normal AreCoordsPowered is that this function checks for a wire powering another wire */
+	bool IsWirePowered(int a_BlockX, int a_BlockY, int a_BlockZ, unsigned char & a_PowerLevel);
 
 
 	/** Returns if lever metadata marks it as emitting power */
-	bool IsLeverOn(NIBBLETYPE a_BlockMeta);
+	inline bool IsLeverOn(NIBBLETYPE a_BlockMeta);
 	/** Returns if button metadata marks it as emitting power */
-	bool IsButtonOn(NIBBLETYPE a_BlockMeta);
+	inline bool IsButtonOn(NIBBLETYPE a_BlockMeta) { return IsLeverOn(a_BlockMeta); }
 	/* ============================== */
 
 	/* ====== Misc Functions ====== */