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-rw-r--r--src/Simulator/FloodyFluidSimulator.cpp91
-rw-r--r--src/Simulator/FloodyFluidSimulator.h18
-rw-r--r--src/Simulator/VanillaFluidSimulator.cpp150
-rw-r--r--src/Simulator/VanillaFluidSimulator.h42
4 files changed, 291 insertions, 10 deletions
diff --git a/src/Simulator/FloodyFluidSimulator.cpp b/src/Simulator/FloodyFluidSimulator.cpp
index 95182345c..03e94e791 100644
--- a/src/Simulator/FloodyFluidSimulator.cpp
+++ b/src/Simulator/FloodyFluidSimulator.cpp
@@ -54,14 +54,23 @@ void cFloodyFluidSimulator::SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_Re
a_Chunk->GetMeta(a_RelX, a_RelY, a_RelZ)
);
- NIBBLETYPE MyMeta = a_Chunk->GetMeta(a_RelX, a_RelY, a_RelZ);
- if (!IsAnyFluidBlock(a_Chunk->GetBlock(a_RelX, a_RelY, a_RelZ)))
+ BLOCKTYPE MyBlock; NIBBLETYPE MyMeta;
+ a_Chunk->GetBlockTypeMeta(a_RelX, a_RelY, a_RelZ, MyBlock, MyMeta);
+
+ if (!IsAnyFluidBlock(MyBlock))
{
// Can happen - if a block is scheduled for simulating and gets replaced in the meantime.
FLOG(" BadBlockType exit");
return;
}
+ // When in contact with water, lava should harden
+ if (HardenBlock(a_Chunk, a_RelX, a_RelY, a_RelZ, MyBlock, MyMeta))
+ {
+ // Block was changed, bail out
+ return;
+ }
+
if (MyMeta != 0)
{
// Source blocks aren't checked for tributaries, others are.
@@ -86,7 +95,12 @@ void cFloodyFluidSimulator::SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_Re
{
// Spread only down, possibly washing away what's there or turning lava to stone / cobble / obsidian:
SpreadToNeighbor(a_Chunk, a_RelX, a_RelY - 1, a_RelZ, 8);
- SpreadFurther = false;
+
+ // Source blocks spread both downwards and sideways
+ if (MyMeta != 0)
+ {
+ SpreadFurther = false;
+ }
}
// If source creation is on, check for it here:
else if (
@@ -105,10 +119,7 @@ void cFloodyFluidSimulator::SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_Re
if (SpreadFurther && (NewMeta < 8))
{
// Spread to the neighbors:
- SpreadToNeighbor(a_Chunk, a_RelX - 1, a_RelY, a_RelZ, NewMeta);
- SpreadToNeighbor(a_Chunk, a_RelX + 1, a_RelY, a_RelZ, NewMeta);
- SpreadToNeighbor(a_Chunk, a_RelX, a_RelY, a_RelZ - 1, NewMeta);
- SpreadToNeighbor(a_Chunk, a_RelX, a_RelY, a_RelZ + 1, NewMeta);
+ Spread(a_Chunk, a_RelX, a_RelY, a_RelZ, NewMeta);
}
// Mark as processed:
@@ -119,6 +130,17 @@ void cFloodyFluidSimulator::SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_Re
+void cFloodyFluidSimulator::Spread(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta)
+{
+ SpreadToNeighbor(a_Chunk, a_RelX - 1, a_RelY, a_RelZ, a_NewMeta);
+ SpreadToNeighbor(a_Chunk, a_RelX + 1, a_RelY, a_RelZ, a_NewMeta);
+ SpreadToNeighbor(a_Chunk, a_RelX, a_RelY, a_RelZ - 1, a_NewMeta);
+ SpreadToNeighbor(a_Chunk, a_RelX, a_RelY, a_RelZ + 1, a_NewMeta);
+}
+
+
+
+
bool cFloodyFluidSimulator::CheckTributaries(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_MyMeta)
{
// If we have a section above, check if there's fluid above this block that would feed it:
@@ -296,6 +318,8 @@ void cFloodyFluidSimulator::SpreadToNeighbor(cChunk * a_NearChunk, int a_RelX, i
a_NewMeta
);
a_NearChunk->UnboundedRelSetBlock(a_RelX, a_RelY, a_RelZ, m_FluidBlock, a_NewMeta);
+
+ HardenBlock(a_NearChunk, a_RelX, a_RelY, a_RelZ, m_FluidBlock, a_NewMeta);
}
@@ -348,3 +372,56 @@ bool cFloodyFluidSimulator::CheckNeighborsForSource(cChunk * a_Chunk, int a_RelX
+
+bool cFloodyFluidSimulator::HardenBlock(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta)
+{
+ // Only lava blocks can harden
+ if (!IsBlockLava(a_BlockType))
+ {
+ return false;
+ }
+
+ bool ShouldHarden = false;
+
+ BLOCKTYPE BlockType;
+ NIBBLETYPE BlockMeta;
+ static const Vector3i Coords[] =
+ {
+ Vector3i( 1, 0, 0),
+ Vector3i(-1, 0, 0),
+ Vector3i( 0, 0, 1),
+ Vector3i( 0, 0, -1),
+ };
+ for (size_t i = 0; i < ARRAYCOUNT(Coords); i++)
+ {
+ if (!a_Chunk->UnboundedRelGetBlock(a_RelX + Coords[i].x, a_RelY, a_RelZ + Coords[i].z, BlockType, BlockMeta))
+ {
+ continue;
+ }
+ if (IsBlockWater(BlockType))
+ {
+ ShouldHarden = true;
+ }
+ } // for i - Coords[]
+
+ if (ShouldHarden)
+ {
+ if (a_Meta == 0)
+ {
+ // Source lava block
+ a_Chunk->UnboundedRelSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_OBSIDIAN, 0);
+ return true;
+ }
+ // Ignore last lava level
+ else if (a_Meta <= 4)
+ {
+ a_Chunk->UnboundedRelSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_COBBLESTONE, 0);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+
diff --git a/src/Simulator/FloodyFluidSimulator.h b/src/Simulator/FloodyFluidSimulator.h
index c4af2e246..632de3bb2 100644
--- a/src/Simulator/FloodyFluidSimulator.h
+++ b/src/Simulator/FloodyFluidSimulator.h
@@ -38,14 +38,26 @@ protected:
// cDelayedFluidSimulator overrides:
virtual void SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override;
- /// Checks tributaries, if not fed, decreases the block's level and returns true
+ /** Checks tributaries, if not fed, decreases the block's level and returns true. */
bool CheckTributaries(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_MyMeta);
- /// Spreads into the specified block, if the blocktype there allows. a_Area is for checking.
+ /** Spreads into the specified block, if the blocktype there allows. a_Area is for checking. */
void SpreadToNeighbor(cChunk * a_NearChunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta);
- /// Checks if there are enough neighbors to create a source at the coords specified; turns into source and returns true if so
+ /** Checks if there are enough neighbors to create a source at the coords specified; turns into source and returns true if so. */
bool CheckNeighborsForSource(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ);
+
+ /** Checks if the specified block should harden (Water/Lava interaction) and if so, converts it to a suitable block.
+ *
+ * Returns whether the block was changed or not.
+ */
+ bool HardenBlock(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta);
+
+ /** Spread water to neighbors.
+ *
+ * May be overridden to provide more sophisticated algorithms.
+ */
+ virtual void Spread(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta);
} ;
diff --git a/src/Simulator/VanillaFluidSimulator.cpp b/src/Simulator/VanillaFluidSimulator.cpp
new file mode 100644
index 000000000..78aff9d68
--- /dev/null
+++ b/src/Simulator/VanillaFluidSimulator.cpp
@@ -0,0 +1,150 @@
+
+// VanillaFluidSimulator.cpp
+
+#include "Globals.h"
+
+#include "VanillaFluidSimulator.h"
+#include "../World.h"
+#include "../Chunk.h"
+#include "../BlockArea.h"
+#include "../Blocks/BlockHandler.h"
+#include "../BlockInServerPluginInterface.h"
+
+
+
+
+
+static const int InfiniteCost = 100;
+
+
+
+
+
+cVanillaFluidSimulator::cVanillaFluidSimulator(
+ cWorld & a_World,
+ BLOCKTYPE a_Fluid,
+ BLOCKTYPE a_StationaryFluid,
+ NIBBLETYPE a_Falloff,
+ int a_TickDelay,
+ int a_NumNeighborsForSource
+) : super(a_World, a_Fluid, a_StationaryFluid, a_Falloff, a_TickDelay, a_NumNeighborsForSource)
+{
+}
+
+
+
+
+
+void cVanillaFluidSimulator::Spread(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta)
+{
+ int Cost[4];
+ Cost[0] = CalculateFlowCost(a_Chunk, a_RelX + 1, a_RelY, a_RelZ, X_PLUS);
+ Cost[1] = CalculateFlowCost(a_Chunk, a_RelX - 1, a_RelY, a_RelZ, X_MINUS);
+ Cost[2] = CalculateFlowCost(a_Chunk, a_RelX, a_RelY, a_RelZ + 1, Z_PLUS);
+ Cost[3] = CalculateFlowCost(a_Chunk, a_RelX, a_RelY, a_RelZ - 1, Z_MINUS);
+
+ int MinCost = InfiniteCost;
+ for (unsigned int i = 0; i < ARRAYCOUNT(Cost); ++i)
+ {
+ if (Cost[i] < MinCost)
+ {
+ MinCost = Cost[i];
+ }
+ }
+
+ if (Cost[0] == MinCost)
+ {
+ SpreadToNeighbor(a_Chunk, a_RelX + 1, a_RelY, a_RelZ, a_NewMeta);
+ }
+ if (Cost[1] == MinCost)
+ {
+ SpreadToNeighbor(a_Chunk, a_RelX - 1, a_RelY, a_RelZ, a_NewMeta);
+ }
+ if (Cost[2] == MinCost)
+ {
+ SpreadToNeighbor(a_Chunk, a_RelX, a_RelY, a_RelZ + 1, a_NewMeta);
+ }
+ if (Cost[3] == MinCost)
+ {
+ SpreadToNeighbor(a_Chunk, a_RelX, a_RelY, a_RelZ - 1, a_NewMeta);
+ }
+}
+
+
+
+
+
+int cVanillaFluidSimulator::CalculateFlowCost(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, Direction a_Dir, unsigned a_Iteration)
+{
+ int Cost = InfiniteCost;
+
+ BLOCKTYPE BlockType;
+ NIBBLETYPE BlockMeta;
+
+ // Check if block is passable
+ if (!a_Chunk->UnboundedRelGetBlock(a_RelX, a_RelY, a_RelZ, BlockType, BlockMeta))
+ {
+ return Cost;
+ }
+ if (!IsPassableForFluid(BlockType) && !IsBlockLiquid(BlockType))
+ {
+ return Cost;
+ }
+
+ // Check if block below is passable
+ if (!a_Chunk->UnboundedRelGetBlock(a_RelX, a_RelY - 1, a_RelZ, BlockType, BlockMeta))
+ {
+ return Cost;
+ }
+ if (IsPassableForFluid(BlockType) || IsBlockLiquid(BlockType))
+ {
+ // Path found, exit
+ return a_Iteration;
+ }
+
+ // 5 blocks away, bail out
+ if (a_Iteration > 3)
+ {
+ return Cost;
+ }
+
+ // Recurse
+ if (a_Dir != X_MINUS)
+ {
+ int NextCost = CalculateFlowCost(a_Chunk, a_RelX + 1, a_RelY, a_RelZ, X_PLUS, a_Iteration + 1);
+ if (NextCost < Cost)
+ {
+ Cost = NextCost;
+ }
+ }
+ if (a_Dir != X_PLUS)
+ {
+ int NextCost = CalculateFlowCost(a_Chunk, a_RelX - 1, a_RelY, a_RelZ, X_MINUS, a_Iteration + 1);
+ if (NextCost < Cost)
+ {
+ Cost = NextCost;
+ }
+ }
+ if (a_Dir != Z_MINUS)
+ {
+ int NextCost = CalculateFlowCost(a_Chunk, a_RelX, a_RelY, a_RelZ + 1, Z_PLUS, a_Iteration + 1);
+ if (NextCost < Cost)
+ {
+ Cost = NextCost;
+ }
+ }
+ if (a_Dir != Z_PLUS)
+ {
+ int NextCost = CalculateFlowCost(a_Chunk, a_RelX, a_RelY, a_RelZ - 1, Z_MINUS, a_Iteration + 1);
+ if (NextCost < Cost)
+ {
+ Cost = NextCost;
+ }
+ }
+
+ return Cost;
+}
+
+
+
+
diff --git a/src/Simulator/VanillaFluidSimulator.h b/src/Simulator/VanillaFluidSimulator.h
new file mode 100644
index 000000000..a9ea98b5a
--- /dev/null
+++ b/src/Simulator/VanillaFluidSimulator.h
@@ -0,0 +1,42 @@
+
+// VanillaFluidSimulator.h
+
+
+
+
+
+#pragma once
+
+#include "FloodyFluidSimulator.h"
+
+
+
+
+
+// fwd:
+class cBlockArea;
+
+
+
+
+
+class cVanillaFluidSimulator :
+ public cFloodyFluidSimulator
+{
+ typedef cFloodyFluidSimulator super;
+
+public:
+ cVanillaFluidSimulator(cWorld & a_World, BLOCKTYPE a_Fluid, BLOCKTYPE a_StationaryFluid, NIBBLETYPE a_Falloff, int a_TickDelay, int a_NumNeighborsForSource);
+
+protected:
+ // cFloodyFluidSimulator overrides:
+ virtual void Spread(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta) override;
+
+ /** Recursively calculates the minimum number of blocks needed to descend a level. */
+ int CalculateFlowCost(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, Direction a_Dir, unsigned a_Iteration = 0);
+
+} ;
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 13:09:35 +0100