1 files changed, 90 insertions, 0 deletions

diff --git a/source/RedstoneSimulator.h b/source/RedstoneSimulator.h
new file mode 100644
index 000000000..3a845bf6b
--- /dev/null
+++ b/source/RedstoneSimulator.h
@@ -0,0 +1,90 @@
+#pragma once
+
+#include "Simulator.h"
+#include "Vector3i.h"
+
+class cRedstoneSimulator : public cSimulator
+{
+	typedef cSimulator super;
+public:
+	cRedstoneSimulator( cWorld* a_World );
+	~cRedstoneSimulator();
+
+	virtual void Simulate( float a_Dt );
+	virtual bool IsAllowedBlock( char a_BlockID ) { return true; }
+
+	virtual void WakeUp( int a_X, int a_Y, int a_Z );
+
+	enum eRedstoneDirection
+	{
+		REDSTONE_NONE =  0,
+		REDSTONE_X_POS = 0x1,
+		REDSTONE_X_NEG = 0x2,
+		REDSTONE_Z_POS = 0x4,
+		REDSTONE_Z_NEG = 0x8,
+	};
+	eRedstoneDirection GetDirection( int a_X, int a_Y, int a_Z );
+	eRedstoneDirection GetDirection( const Vector3i & a_Pos ) { return GetDirection( a_Pos.x, a_Pos.y, a_Pos.z ); }
+private:
+	struct sRepeaterChange
+	{
+		Vector3i Position;
+		int Ticks;
+		bool bPowerOn;
+		bool bPowerOffNextTime;
+	};
+
+	typedef std::deque <Vector3i> BlockList;
+
+	typedef std::deque< sRepeaterChange > RepeaterList;
+	RepeaterList m_SetRepeaters;
+	void SetRepeater( const Vector3i & a_Position, int a_Ticks, bool a_bPowerOn )
+	{
+		for( RepeaterList::iterator itr = m_SetRepeaters.begin(); itr != m_SetRepeaters.end(); ++itr )
+		{
+			sRepeaterChange & Change = *itr;
+			if( Change.Position.Equals( a_Position ) )
+			{
+				if( Change.bPowerOn && a_bPowerOn == false )
+				{
+					Change.bPowerOffNextTime = true;
+				}
+				if( a_bPowerOn == true )
+				{
+					Change.bPowerOffNextTime = false;
+				}
+				Change.bPowerOn |= a_bPowerOn;
+				return;
+			}
+		}
+
+		sRepeaterChange RC;
+		RC.Position = a_Position;
+		RC.Ticks = a_Ticks;
+		RC.bPowerOn = a_bPowerOn;
+		RC.bPowerOffNextTime = false;
+		m_SetRepeaters.push_back( RC );
+	}
+
+	virtual void AddBlock(int a_X, int a_Y, int a_Z) {}
+
+	void HandleChange( const Vector3i & a_BlockPos );
+	BlockList RemoveCurrent( const Vector3i & a_BlockPos );
+
+	bool PowerBlock( const Vector3i & a_BlockPos, const Vector3i & a_FromBlock, char a_Power );
+	int UnPowerBlock( const Vector3i & a_BlockPos, const Vector3i & a_FromBlock );
+
+	bool IsPowered( const Vector3i & a_BlockPos, bool a_bOnlyByWire = false );
+	bool IsPowering( const Vector3i & a_PowerPos, const Vector3i & a_BlockPos, eRedstoneDirection a_WireDirection, bool a_bOnlyByWire );
+	
+	BlockList m_Blocks;
+	BlockList m_BlocksBuffer;
+
+	BlockList m_RefreshPistons;
+
+	BlockList m_RefreshTorchesAround;
+	
+	void RefreshTorchesAround( const Vector3i & a_BlockPos );
+
+	cCriticalSection m_CS;
+};
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