1 files changed, 64 insertions, 24 deletions

diff --git a/src/Chunk.h b/src/Chunk.h
index 7eee3999c..bc66b6528 100644
--- a/src/Chunk.h
+++ b/src/Chunk.h
@@ -9,7 +9,9 @@
 #include "Simulator/SandSimulator.h"
 #include "Simulator/IncrementalRedstoneSimulator.h"
 
+#include "Blocks/GetHandlerCompileTimeTemplate.h"
 
+#include "ChunkMap.h"
 
 
 
@@ -28,7 +30,11 @@ class cServer;
 class MTRand;
 class cPlayer;
 class cChunkMap;
+class cBeaconEntity;
+class cBoundingBox;
 class cChestEntity;
+class cCHunkDataCallback;
+class cCommandBlockEntity;
 class cDispenserEntity;
 class cFurnaceEntity;
 class cNoteEntity;
@@ -42,9 +48,12 @@ class cBlockArea;
 class cFluidSimulatorData;
 class cMobCensus;
 class cMobSpawner;
+class cRedstonePoweredEntity;
+class cSetChunkData;
 
 typedef std::list<cClientHandle *>         cClientHandleList;
 typedef cItemCallback<cEntity>             cEntityCallback;
+typedef cItemCallback<cBeaconEntity>       cBeaconCallback;
 typedef cItemCallback<cChestEntity>        cChestCallback;
 typedef cItemCallback<cDispenserEntity>    cDispenserCallback;
 typedef cItemCallback<cFurnaceEntity>      cFurnaceCallback;
@@ -52,6 +61,7 @@ typedef cItemCallback<cNoteEntity>         cNoteBlockCallback;
 typedef cItemCallback<cCommandBlockEntity> cCommandBlockCallback;
 typedef cItemCallback<cMobHeadEntity>      cMobHeadCallback;
 typedef cItemCallback<cFlowerPotEntity>    cFlowerPotCallback;
+typedef cItemCallback<cRedstonePoweredEntity> cRedstonePoweredCallback;
 
 
 
@@ -62,8 +72,16 @@ class cChunk :
 	public cChunkDef  // The inheritance is "misused" here only to inherit the functions and constants defined in cChunkDef
 {
 public:
+	/** Represents the presence state of the chunk */
+	enum ePresence
+	{
+		cpInvalid,  /**< The chunk is not present at all and is not queued in the loader / generator */
+		cpQueued,   /**< The chunk is not present, but is queued for loading / generation */
+		cpPresent,  /**< The chunk is present */
+	};
+
 	cChunk(
-		int a_ChunkX, int a_ChunkY, int a_ChunkZ,   // Chunk coords
+		int a_ChunkX, int a_ChunkZ,   // Chunk coords
 		cChunkMap * a_ChunkMap, cWorld * a_World,   // Parent objects
 		cChunk * a_NeighborXM, cChunk * a_NeighborXP, cChunk * a_NeighborZM, cChunk * a_NeighborZP,  // Neighbor chunks
 		cAllocationPool<cChunkData::sChunkSection> & a_Pool
@@ -71,11 +89,25 @@ public:
 	cChunk(cChunk & other);
 	~cChunk();
 
-	bool IsValid(void) const {return m_IsValid; }  // Returns true if the chunk block data is valid (loaded / generated)
-	void SetValid(void);                           // Also wakes up any calls to cChunkMap::GetHeight()
-	void MarkRegenerating(void);                   // Marks all clients attached to this chunk as wanting this chunk
-	bool IsDirty(void) const {return m_IsDirty; }  // Returns true if the chunk has changed since it was last saved
-	bool HasLoadFailed(void) const {return m_HasLoadFailed; }  // Returns true if the chunk failed to load and hasn't been generated since then
+	/** Returns true iff the chunk block data is valid (loaded / generated) */
+	bool IsValid(void) const {return (m_Presence == cpPresent); }
+
+	/** Returns true iff the chunk is in the queue for loading / generating */
+	bool IsQueued(void) const {return (m_Presence == cpQueued); }
+
+	/** Sets the chunk's presence.
+	Wakes up any calls to cChunkMap::GetHeight() when setting to cpPresent. */
+	void SetPresence(ePresence a_Presence);
+
+	/** Called to indicate whether the chunk should be queued in the generator if it fails to load. Set by cChunkMap::GetChunk(). */
+	void SetShouldGenerateIfLoadFailed(bool a_ShouldGenerateIfLoadFailed);
+
+	/** Marks all clients attached to this chunk as wanting this chunk. Also sets presence to cpQueued. */
+	void MarkRegenerating(void);
+
+	/** Returns true iff the chunk has changed since it was last saved. */
+	bool IsDirty(void) const {return m_IsDirty; }
+
 	bool CanUnload(void);
 	
 	bool IsLightValid(void) const {return m_IsLightValid; }
@@ -90,7 +122,10 @@ public:
 	void MarkSaving(void);  // Marks the chunk as being saved.
 	void MarkSaved(void);  // Marks the chunk as saved, if it didn't change from the last call to MarkSaving()
 	void MarkLoaded(void);  // Marks the chunk as freshly loaded. Fails if the chunk is already valid
-	void MarkLoadFailed(void);  // Marks the chunk as failed to load. Ignored is the chunk is already valid
+
+	/** Marks the chunk as failed to load.
+	If m_ShouldGenerateIfLoadFailed is set, queues the chunk for generating. */
+	void MarkLoadFailed(void);
 	
 	/** Gets all chunk data, calls the a_Callback's methods for each data type */
 	void GetAllData(cChunkDataCallback & a_Callback);
@@ -131,7 +166,6 @@ public:
 	void TickBlock(int a_RelX, int a_RelY, int a_RelZ);
 
 	int GetPosX(void) const { return m_PosX; }
-	int GetPosY(void) const { return m_PosY; }
 	int GetPosZ(void) const { return m_PosZ; }
 	
 	cWorld * GetWorld(void) const { return m_World; }
@@ -151,7 +185,7 @@ public:
 
 	void FastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta, bool a_SendToClients = true);  // Doesn't force block updates on neighbors, use for simple changes such as grass growing etc.
 	BLOCKTYPE GetBlock(int a_RelX, int a_RelY, int a_RelZ) const;
-	BLOCKTYPE GetBlock(Vector3i a_cords) const { return GetBlock(a_cords.x, a_cords.y, a_cords.z);}
+	BLOCKTYPE GetBlock(const Vector3i & a_RelCoords) const { return GetBlock(a_RelCoords.x, a_RelCoords.y, a_RelCoords.z); }
 	void      GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta);
 	void      GetBlockInfo    (int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight);
 	
@@ -212,6 +246,10 @@ public:
 	/** Calls the callback for each entity; returns true if all entities processed, false if the callback aborted by returning true */
 	bool ForEachEntity(cEntityCallback & a_Callback);  // Lua-accessible
 
+	/** Calls the callback for each entity that has a nonempty intersection with the specified boundingbox.
+	Returns true if all entities processed, false if the callback aborted by returning true. */
+	bool ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback);  // Lua-accessible
+
 	/** Calls the callback if the entity with the specified ID is found, with the entity object as the callback param. Returns true if entity found. */
 	bool DoWithEntityByID(int a_EntityID, cEntityCallback & a_Callback, bool & a_CallbackResult);  // Lua-accessible
 
@@ -235,6 +273,11 @@ public:
 	
 	/** Calls the callback for the block entity at the specified coords; returns false if there's no block entity at those coords, true if found */
 	bool DoWithBlockEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ, cBlockEntityCallback & a_Callback);  // Lua-acessible
+	
+	/** Calls the callback for the redstone powered entity at the specified coords; returns false if there's no redstone powered entity at those coords, true if found */
+	bool DoWithRedstonePoweredEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ, cRedstonePoweredCallback & a_Callback);
+	/** Calls the callback for the beacon at the specified coords; returns false if there's no beacon at those coords, true if found */
+	bool DoWithBeaconAt(int a_BlockX, int a_BlockY, int a_BlockZ, cBeaconCallback & a_Callback);  // Lua-acessible
 
 	/** Calls the callback for the chest at the specified coords; returns false if there's no chest at those coords, true if found */
 	bool DoWithChestAt(int a_BlockX, int a_BlockY, int a_BlockZ, cChestCallback & a_Callback);  // Lua-acessible
@@ -289,7 +332,7 @@ public:
 	void BroadcastEntityStatus       (const cEntity & a_Entity, char a_Status, const cClientHandle * a_Exclude = NULL);
 	void BroadcastEntityVelocity     (const cEntity & a_Entity, const cClientHandle * a_Exclude = NULL);
 	void BroadcastEntityAnimation    (const cEntity & a_Entity, char a_Animation, const cClientHandle * a_Exclude = NULL);
-	void BroadcastParticleEffect     (const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmmount, cClientHandle * a_Exclude = NULL);
+	void BroadcastParticleEffect     (const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmount, cClientHandle * a_Exclude = NULL);
 	void BroadcastRemoveEntityEffect (const cEntity & a_Entity, int a_EffectID, const cClientHandle * a_Exclude = NULL);
 	void BroadcastSoundEffect        (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);
 	void BroadcastSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data, const cClientHandle * a_Exclude = NULL);
@@ -377,12 +420,8 @@ public:
 	cFluidSimulatorData *     GetLavaSimulatorData (void) { return m_LavaSimulatorData; }
 	cSandSimulatorChunkData & GetSandSimulatorData (void) { return m_SandSimulatorData; }
 
-	cRedstoneSimulatorChunkData * GetRedstoneSimulatorData(void) { return &m_RedstoneSimulatorData; }
-	cRedstoneSimulatorChunkData * GetRedstoneSimulatorQueuedData(void) { return &m_RedstoneSimulatorQueuedData; }
-	cIncrementalRedstoneSimulator::PoweredBlocksList * GetRedstoneSimulatorPoweredBlocksList(void) { return &m_RedstoneSimulatorPoweredBlocksList; }
-	cIncrementalRedstoneSimulator::LinkedBlocksList * GetRedstoneSimulatorLinkedBlocksList(void) { return &m_RedstoneSimulatorLinkedBlocksList; }
-	cIncrementalRedstoneSimulator::SimulatedPlayerToggleableList * GetRedstoneSimulatorSimulatedPlayerToggleableList(void) { return &m_RedstoneSimulatorSimulatedPlayerToggleableList; }
-	cIncrementalRedstoneSimulator::RepeatersDelayList * GetRedstoneSimulatorRepeatersDelayList(void) { return &m_RedstoneSimulatorRepeatersDelayList; }
+	cRedstoneSimulatorChunkData * GetRedstoneSimulatorData(void) { return m_RedstoneSimulatorData; }
+	void SetRedstoneSimulatorData(cRedstoneSimulatorChunkData * a_Data) { m_RedstoneSimulatorData = a_Data; }
 	bool IsRedstoneDirty(void) const { return m_IsRedstoneDirty; }
 	void SetIsRedstoneDirty(bool a_Flag) { m_IsRedstoneDirty = a_Flag; }
 
@@ -421,7 +460,12 @@ private:
 	typedef std::vector<sSetBlockQueueItem> sSetBlockQueueVector;
 	
 
-	bool m_IsValid;        // True if the chunk is loaded / generated
+	/** Holds the presence status of the chunk - if it is present, or in the loader / generator queue, or unloaded */
+	ePresence m_Presence;
+
+	/** If the chunk fails to load, should it be queued in the generator or reset back to invalid? */
+	bool m_ShouldGenerateIfLoadFailed;
+
 	bool m_IsLightValid;   // True if the blocklight and skylight are calculated
 	bool m_IsDirty;        // True if the chunk has changed since it was last saved
 	bool m_IsSaving;       // True if the chunk is being saved
@@ -440,7 +484,7 @@ private:
 	/** Number of times the chunk has been requested to stay (by various cChunkStay objects); if zero, the chunk can be unloaded */
 	int m_StayCount;
 
-	int m_PosX, m_PosY, m_PosZ;
+	int m_PosX, m_PosZ;
 	cWorld *    m_World;
 	cChunkMap * m_ChunkMap;
 
@@ -462,12 +506,8 @@ private:
 	cFluidSimulatorData *   m_LavaSimulatorData;
 	cSandSimulatorChunkData m_SandSimulatorData;
 
-	cRedstoneSimulatorChunkData m_RedstoneSimulatorData;
-	cRedstoneSimulatorChunkData m_RedstoneSimulatorQueuedData;
-	cIncrementalRedstoneSimulator::PoweredBlocksList m_RedstoneSimulatorPoweredBlocksList;
-	cIncrementalRedstoneSimulator::LinkedBlocksList m_RedstoneSimulatorLinkedBlocksList;
-	cIncrementalRedstoneSimulator::SimulatedPlayerToggleableList m_RedstoneSimulatorSimulatedPlayerToggleableList;
-	cIncrementalRedstoneSimulator::RepeatersDelayList m_RedstoneSimulatorRepeatersDelayList;
+	cRedstoneSimulatorChunkData * m_RedstoneSimulatorData;
+
 
 	/** Indicates if simulate-once blocks should be updated by the redstone simulator */
 	bool m_IsRedstoneDirty;