1 files changed, 82 insertions, 0 deletions

diff --git a/src/Simulator/DelayedFluidSimulator.h b/src/Simulator/DelayedFluidSimulator.h
new file mode 100644
index 000000000..c81500741
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+++ b/src/Simulator/DelayedFluidSimulator.h
@@ -0,0 +1,82 @@
+
+// DelayedFluidSimulator.h
+
+// Interfaces to the cDelayedFluidSimulator class representing a fluid simulator that has a configurable delay
+// before simulating a block. Each tick it takes a consecutive delay "slot" and simulates only blocks in that slot.
+
+
+
+
+#pragma once
+
+#include "FluidSimulator.h"
+
+
+
+
+
+class cDelayedFluidSimulatorChunkData :
+	public cFluidSimulatorData
+{
+public:
+	class cSlot
+	{
+	public:
+		/// Returns true if the specified block is stored
+		bool HasBlock(int a_RelX, int a_RelY, int a_RelZ);
+		
+		/// Adds the specified block unless already present; returns true if added, false if the block was already present
+		bool Add(int a_RelX, int a_RelY, int a_RelZ);
+		
+		/** Array of block containers, each item stores blocks for one Z coord
+		Int param is the block index (for faster duplicate comparison in Add())
+		*/
+		cCoordWithIntVector m_Blocks[16];
+	} ;
+	
+	cDelayedFluidSimulatorChunkData(int a_TickDelay);
+	virtual ~cDelayedFluidSimulatorChunkData();
+	
+	/// Slots, one for each delay tick, each containing the blocks to simulate
+	cSlot * m_Slots;
+} ;
+
+
+
+
+
+class cDelayedFluidSimulator :
+	public cFluidSimulator
+{
+	typedef cFluidSimulator super;
+
+public:	
+	cDelayedFluidSimulator(cWorld & a_World, BLOCKTYPE a_Fluid, BLOCKTYPE a_StationaryFluid, int a_TickDelay);
+	
+	// cSimulator overrides:
+	virtual void AddBlock(int a_BlockX, int a_BlockY, int a_BlockZ, cChunk * a_Chunk) override;
+	virtual void Simulate(float a_Dt) override;
+	virtual void SimulateChunk(float a_Dt, int a_ChunkX, int a_ChunkZ, cChunk * a_Chunk) override;
+	virtual cFluidSimulatorData * CreateChunkData(void) override { return new cDelayedFluidSimulatorChunkData(m_TickDelay); }
+	
+protected:
+
+	int m_TickDelay;   // Count of the m_Slots array in each ChunkData
+	int m_AddSlotNum;  // Index into m_Slots[] where to add new blocks in each ChunkData
+	int m_SimSlotNum;  // Index into m_Slots[] where to simulate blocks in each ChunkData
+	
+	int m_TotalBlocks;  // Statistics only: the total number of blocks currently queued
+
+	/*
+	Slots:
+	| 0 | 1 | ... | m_AddSlotNum | m_SimSlotNum | ... | m_TickDelay - 1 |
+	        adding blocks here ^ | ^ simulating here
+	*/
+	
+	/// Called from SimulateChunk() to simulate each block in one slot of blocks. Descendants override this method to provide custom simulation.
+	virtual void SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ) = 0;
+} ;
+
+
+
+