1 files changed, 158 insertions, 0 deletions

diff --git a/src/Simulator/DelayedFluidSimulator.cpp b/src/Simulator/DelayedFluidSimulator.cpp
new file mode 100644
index 000000000..a4645ca09
--- /dev/null
+++ b/src/Simulator/DelayedFluidSimulator.cpp
@@ -0,0 +1,158 @@
+
+// DelayedFluidSimulator.cpp
+
+// 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.
+
+#include "Globals.h"
+
+#include "DelayedFluidSimulator.h"
+#include "../World.h"
+#include "../Chunk.h"
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cDelayedFluidSimulatorChunkData::cSlot
+
+bool cDelayedFluidSimulatorChunkData::cSlot::Add(int a_RelX, int a_RelY, int a_RelZ)
+{
+	ASSERT(a_RelZ >= 0);
+	ASSERT(a_RelZ < ARRAYCOUNT(m_Blocks));
+	
+	cCoordWithIntVector & Blocks = m_Blocks[a_RelZ];
+	int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ);
+	for (cCoordWithIntVector::const_iterator itr = Blocks.begin(), end = Blocks.end(); itr != end; ++itr)
+	{
+		if (itr->Data == Index)
+		{
+			// Already present
+			return false;
+		}
+	}  // for itr - Blocks[]
+	Blocks.push_back(cCoordWithInt(a_RelX, a_RelY, a_RelZ, Index));
+	return true;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cDelayedFluidSimulatorChunkData:
+
+cDelayedFluidSimulatorChunkData::cDelayedFluidSimulatorChunkData(int a_TickDelay) :
+	m_Slots(new cSlot[a_TickDelay])
+{
+}
+
+
+
+
+
+cDelayedFluidSimulatorChunkData::~cDelayedFluidSimulatorChunkData()
+{
+	delete[] m_Slots;
+	m_Slots = NULL;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cDelayedFluidSimulator:
+
+cDelayedFluidSimulator::cDelayedFluidSimulator(cWorld & a_World, BLOCKTYPE a_Fluid, BLOCKTYPE a_StationaryFluid, int a_TickDelay) :
+	super(a_World, a_Fluid, a_StationaryFluid),
+	m_TickDelay(a_TickDelay),
+	m_AddSlotNum(a_TickDelay - 1),
+	m_SimSlotNum(0),
+	m_TotalBlocks(0)
+{
+}
+
+
+
+
+
+void cDelayedFluidSimulator::AddBlock(int a_BlockX, int a_BlockY, int a_BlockZ, cChunk * a_Chunk)
+{
+	if ((a_BlockY < 0) || (a_BlockY >= cChunkDef::Height))
+	{
+		// Not inside the world (may happen when rclk with a full bucket - the client sends Y = -1)
+		return;
+	}
+	
+	if ((a_Chunk == NULL) || !a_Chunk->IsValid())
+	{
+		return;
+	}
+	
+	int RelX = a_BlockX - a_Chunk->GetPosX() * cChunkDef::Width;
+	int RelZ = a_BlockZ - a_Chunk->GetPosZ() * cChunkDef::Width;
+	BLOCKTYPE BlockType = a_Chunk->GetBlock(RelX, a_BlockY, RelZ);
+	if (BlockType != m_FluidBlock)
+	{
+		return;
+	}
+
+	void * ChunkDataRaw = (m_FluidBlock == E_BLOCK_WATER) ? a_Chunk->GetWaterSimulatorData() : a_Chunk->GetLavaSimulatorData();
+	cDelayedFluidSimulatorChunkData * ChunkData = (cDelayedFluidSimulatorChunkData *)ChunkDataRaw;
+	cDelayedFluidSimulatorChunkData::cSlot & Slot = ChunkData->m_Slots[m_AddSlotNum];
+	
+	// Add, if not already present:
+	if (!Slot.Add(RelX, a_BlockY, RelZ))
+	{
+		return;
+	}
+
+	++m_TotalBlocks;
+}
+
+
+
+
+
+void cDelayedFluidSimulator::Simulate(float a_Dt)
+{
+	m_AddSlotNum = m_SimSlotNum;
+	m_SimSlotNum += 1;
+	if (m_SimSlotNum >= m_TickDelay)
+	{
+		m_SimSlotNum = 0;
+	}
+}
+
+
+
+
+
+void cDelayedFluidSimulator::SimulateChunk(float a_Dt, int a_ChunkX, int a_ChunkZ, cChunk * a_Chunk)
+{	
+	void * ChunkDataRaw = (m_FluidBlock == E_BLOCK_WATER) ? a_Chunk->GetWaterSimulatorData() : a_Chunk->GetLavaSimulatorData();
+	cDelayedFluidSimulatorChunkData * ChunkData = (cDelayedFluidSimulatorChunkData *)ChunkDataRaw;
+	cDelayedFluidSimulatorChunkData::cSlot & Slot = ChunkData->m_Slots[m_SimSlotNum];
+	
+	// Simulate all the blocks in the scheduled slot:
+	for (int i = 0; i < ARRAYCOUNT(Slot.m_Blocks); i++)
+	{
+		cCoordWithIntVector & Blocks = Slot.m_Blocks[i];
+		if (Blocks.empty())
+		{
+			continue;
+		}
+		for (cCoordWithIntVector::iterator itr = Blocks.begin(), end = Blocks.end(); itr != end; ++itr)
+		{
+			SimulateBlock(a_Chunk, itr->x, itr->y, itr->z);
+		}
+		m_TotalBlocks -= Blocks.size();
+		Blocks.clear();
+	}
+}
+
+
+
+