first commit

Minecraft.World/RailTile.h

@@ -0,0 +1,84 @@
+#pragma once
+#include "Tile.h"
+#include "TilePos.h"
+#include "Definitions.h"
+
+class Random;
+class HitResult;
+class ChunkRebuildData;
+
+using namespace std;
+
+class RailTile : 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;
+
+	bool usesDataBit;
+
+     class Rail
+	 {
+		 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);
+		int countPotentialConnections();
+		bool canConnectTo(Rail *rail);
+	 private:
+		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:
+	RailTile(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 Icon *getTexture(int face, int data);
+	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);
+private:
+	void updateDir(Level *level, int x, int y, int z, bool first);
+    bool findGoldenRailSignal(Level *level, int x, int y, int z, int data, bool forward, int searchDepth);
+    bool isGoldenRailWithPower(Level *level, int x, int y, int z, bool forward, int searchDepth, int dir);
+public:
+	virtual int getPistonPushReaction();
+	void registerIcons(IconRegister *iconRegister);
+};