1 files changed, 89 insertions, 0 deletions
diff --git a/Minecraft.World/BaseRailTile.h b/Minecraft.World/BaseRailTile.h
new file mode 100644
index 00000000..105ddfde
--- /dev/null
+++ b/Minecraft.World/BaseRailTile.h
@@ -0,0 +1,89 @@
+#pragma once
+#include "Tile.h"
+#include "TilePos.h"
+#include "Definitions.h"
+
+class Random;
+class HitResult;
+class ChunkRebuildData;
+
+using namespace std;
+
+class BaseRailTile : public Tile
+{
+	friend class Tile;
+	friend class ChunkRebuildData;
+public:
+	static const int DIR_FLAT_Z = 0;
+	static const int DIR_FLAT_X = 1;
+	// the data bit is used by boosters and detectors, so they can't turn
+	static const int RAIL_DATA_BIT = 8;
+	static const int RAIL_DIRECTION_MASK = 7;
+
+private:
+	Icon *iconTurn;
+
+protected:
+	bool usesDataBit;
+
+	class Rail
+	{
+		friend class BaseRailTile;
+		friend class RailTile;
+	private:
+		Level *level;
+		int x, y, z;
+		bool usesDataBit;
+		vector<TilePos *> connections;
+		bool m_bValidRail; // 4J added
+
+	public:
+		Rail(Level *level, int x, int y, int z);
+		~Rail();
+	private:
+		void updateConnections(int direction);
+		void removeSoftConnections();
+		bool hasRail(int x, int y, int z);
+		Rail *getRail(TilePos *p);
+		bool connectsTo(Rail *rail);
+		bool hasConnection(int x, int y, int z);
+
+	protected:
+		int countPotentialConnections();
+
+	private:
+		bool canConnectTo(Rail *rail);
+		void connectTo(Rail *rail);
+		bool hasNeighborRail(int x, int y, int z);
+	public:
+		void place(bool hasSignal, bool first);
+	};
+public:
+	static bool isRail(Level *level, int x, int y, int z);
+	static bool isRail(int id);
+protected:
+	BaseRailTile(int id, bool usesDataBit);
+public:
+	using Tile::getResourceCount;
+
+	bool isUsesDataBit();
+	virtual AABB *getAABB(Level *level, int x, int y, int z);
+	virtual bool blocksLight();
+	virtual bool isSolidRender(bool isServerLevel = false);
+	virtual HitResult *clip(Level *level, int xt, int yt, int zt, Vec3 *a, Vec3 *b);
+	virtual void updateShape(LevelSource *level, int x, int y, int z, int forceData = -1, shared_ptr<TileEntity> forceEntity = shared_ptr<TileEntity>());	// 4J added forceData, forceEntity param
+	virtual bool isCubeShaped();
+	virtual int getRenderShape();
+	virtual int getResourceCount(Random random);
+	virtual bool mayPlace(Level *level, int x, int y, int z);
+	virtual void onPlace(Level *level, int x, int y, int z);
+	virtual void neighborChanged(Level *level, int x, int y, int z, int type);
+
+protected:
+	virtual void updateState(Level *level, int x, int y, int z, int data, int dir, int type);
+	virtual void updateDir(Level *level, int x, int y, int z, bool first);
+
+public:
+	int getPistonPushReaction();
+	void onRemove(Level *level, int x, int y, int z, int id, int data);
+};