New redstone simulator. Should work without crashes!

git-svn-id: http://mc-server.googlecode.com/svn/trunk@345 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/cRedstoneSimulator.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include "cSimulator.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:
+	typedef std::deque <Vector3i> BlockList;
+
+	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 );
+
+	bool IsPowered( const Vector3i & a_BlockPos, bool a_bOnlyByWire = false );
+	
+	BlockList m_Blocks;
+	BlockList m_BlocksBuffer;
+
+	BlockList m_RefreshPistons;
+
+	BlockList m_RefreshTorchesAround;
+	void RefreshTorchesAround( const Vector3i & a_BlockPos );
+
+	cCriticalSection m_CS;
+};