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Diffstat (limited to 'source/Simulator/FloodyFluidSimulator.cpp')
| -rw-r--r-- | source/Simulator/FloodyFluidSimulator.cpp | 330 |
1 files changed, 0 insertions, 330 deletions
diff --git a/source/Simulator/FloodyFluidSimulator.cpp b/source/Simulator/FloodyFluidSimulator.cpp deleted file mode 100644 index d204a1f8b..000000000 --- a/source/Simulator/FloodyFluidSimulator.cpp +++ /dev/null @@ -1,330 +0,0 @@ - -// FloodyFluidSimulator.cpp - -// Interfaces to the cFloodyFluidSimulator that represents a fluid simulator that tries to flood everything :) -// http://forum.mc-server.org/showthread.php?tid=565 - -#include "Globals.h" - -#include "FloodyFluidSimulator.h" -#include "../World.h" -#include "../Chunk.h" -#include "../BlockArea.h" -#include "../Blocks/BlockHandler.h" - - - - - -// Enable or disable detailed logging -#if 0 - #define FLOG LOGD -#else - #define FLOG(...) -#endif - - - - - -cFloodyFluidSimulator::cFloodyFluidSimulator( - 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_TickDelay), - m_Falloff(a_Falloff), - m_NumNeighborsForSource(a_NumNeighborsForSource) -{ -} - - - - - -void cFloodyFluidSimulator::SimulateBlock(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ) -{ - FLOG("Simulating block {%d, %d, %d}: block %d, meta %d", - a_Chunk->GetPosX() * cChunkDef::Width + a_RelX, a_RelY, a_Chunk->GetPosZ() * cChunkDef::Width + a_RelZ, - a_Chunk->GetBlock(a_RelX, a_RelY, a_RelZ), - 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))) - { - // Can happen - if a block is scheduled for simulating and gets replaced in the meantime. - FLOG(" BadBlockType exit"); - return; - } - - if (MyMeta != 0) - { - // Source blocks aren't checked for tributaries, others are. - if (CheckTributaries(a_Chunk, a_RelX, a_RelY, a_RelZ, MyMeta)) - { - // Has no tributary, has been decreased (in CheckTributaries()), - // no more processing needed (neighbors have been scheduled by the decrease) - FLOG(" CheckTributaries exit"); - return; - } - } - - // New meta for the spreading to neighbors: - // If this is a source block or was falling, the new meta is just the falloff - // Otherwise it is the current meta plus falloff (may be larger than max height, will be checked later) - NIBBLETYPE NewMeta = ((MyMeta == 0) || ((MyMeta & 0x08) != 0)) ? m_Falloff : (MyMeta + m_Falloff); - bool SpreadFurther = true; - if (a_RelY > 0) - { - BLOCKTYPE Below = a_Chunk->GetBlock(a_RelX, a_RelY - 1, a_RelZ); - if (IsPassableForFluid(Below) || IsBlockLava(Below) || IsBlockWater(Below)) - { - // 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; - } - // If source creation is on, check for it here: - else if ( - (m_NumNeighborsForSource > 0) && // Source creation is on - (MyMeta == m_Falloff) && // Only exactly one block away from a source (fast bail-out) - !IsPassableForFluid(Below) && // Only exactly 1 block deep - CheckNeighborsForSource(a_Chunk, a_RelX, a_RelY, a_RelZ) // Did we create a source? - ) - { - // We created a source, no more spreading is to be done now - // Also has been re-scheduled for ticking in the next wave, so no marking is needed - return; - } - } - - 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); - } - - // Mark as processed: - a_Chunk->FastSetBlock(a_RelX, a_RelY, a_RelZ, m_StationaryFluidBlock, MyMeta); -} - - - - - -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: - if (a_RelY < cChunkDef::Height - 1) - { - if (IsAnyFluidBlock(a_Chunk->GetBlock(a_RelX, a_RelY + 1, a_RelZ))) - { - // This block is fed from above, no more processing needed - FLOG(" Fed from above"); - return false; - } - } - - // Not fed from above, check if there's a feed from the side (but not if it's a downward-flowing block): - if (a_MyMeta != 8) - { - 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 (int 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 (IsAllowedBlock(BlockType) && IsHigherMeta(BlockMeta, a_MyMeta)) - { - // This block is fed, no more processing needed - FLOG(" Fed from {%d, %d, %d}, type %d, meta %d", - a_Chunk->GetPosX() * cChunkDef::Width + a_RelX + Coords[i].x, - a_RelY, - a_Chunk->GetPosZ() * cChunkDef::Width + a_RelZ + Coords[i].z, - BlockType, BlockMeta - ); - return false; - } - } // for i - Coords[] - } // if not fed from above - - // Block is not fed, decrease by m_Falloff levels: - if (a_MyMeta >= 8) - { - FLOG(" Not fed and downwards, turning into non-downwards meta %d", m_Falloff); - a_Chunk->SetBlock(a_RelX, a_RelY, a_RelZ, m_StationaryFluidBlock, m_Falloff); - } - else - { - a_MyMeta += m_Falloff; - if (a_MyMeta < 8) - { - FLOG(" Not fed, decreasing from %d to %d", a_MyMeta - m_Falloff, a_MyMeta); - a_Chunk->SetBlock(a_RelX, a_RelY, a_RelZ, m_StationaryFluidBlock, a_MyMeta); - } - else - { - FLOG(" Not fed, meta %d, erasing altogether", a_MyMeta); - a_Chunk->SetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_AIR, 0); - } - } - return true; -} - - - - - -void cFloodyFluidSimulator::SpreadToNeighbor(cChunk * a_NearChunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta) -{ - ASSERT(a_NewMeta <= 8); // Invalid meta values - ASSERT(a_NewMeta > 0); // Source blocks aren't spread - - BLOCKTYPE BlockType; - NIBBLETYPE BlockMeta; - if (!a_NearChunk->UnboundedRelGetBlock(a_RelX, a_RelY, a_RelZ, BlockType, BlockMeta)) - { - // Chunk not available - return; - } - - if (IsAllowedBlock(BlockType)) - { - if ((BlockMeta == a_NewMeta) || IsHigherMeta(BlockMeta, a_NewMeta)) - { - // Don't spread there, there's already a higher or same level there - return; - } - } - - // Check water - lava interaction: - if (m_FluidBlock == E_BLOCK_LAVA) - { - if (IsBlockWater(BlockType)) - { - // Lava flowing into water, change to stone / cobblestone based on direction: - BLOCKTYPE NewBlock = (a_NewMeta == 8) ? E_BLOCK_STONE : E_BLOCK_COBBLESTONE; - FLOG(" Lava flowing into water, turning water at rel {%d, %d, %d} into stone", - a_RelX, a_RelY, a_RelZ, - ItemTypeToString(NewBlock).c_str() - ); - a_NearChunk->UnboundedRelSetBlock(a_RelX, a_RelY, a_RelZ, NewBlock, 0); - m_World.BroadcastSoundEffect("random.fizz", a_RelX * 8, a_RelY * 8, a_RelZ * 8, 0.5f, 1.5f); - return; - } - } - else if (m_FluidBlock == E_BLOCK_WATER) - { - if (IsBlockLava(BlockType)) - { - // Water flowing into lava, change to cobblestone / obsidian based on dest block: - BLOCKTYPE NewBlock = (BlockMeta == 0) ? E_BLOCK_OBSIDIAN : E_BLOCK_COBBLESTONE; - FLOG(" Water flowing into lava, turning lava at rel {%d, %d, %d} into %s", - a_RelX, a_RelY, a_RelZ, ItemTypeToString(NewBlock).c_str() - ); - a_NearChunk->UnboundedRelSetBlock(a_RelX, a_RelY, a_RelZ, NewBlock, 0); - m_World.BroadcastSoundEffect("random.fizz", a_RelX * 8, a_RelY * 8, a_RelZ * 8, 0.5f, 1.5f); - return; - } - } - else - { - ASSERT(!"Unknown fluid!"); - } - - if (!IsPassableForFluid(BlockType)) - { - // Can't spread there - return; - } - - // Wash away the block there, if possible: - if (CanWashAway(BlockType)) - { - cBlockHandler * Handler = BlockHandler(BlockType); - if (Handler->DoesDropOnUnsuitable()) - { - Handler->DropBlock( - &m_World, NULL, - a_NearChunk->GetPosX() * cChunkDef::Width + a_RelX, - a_RelY, - a_NearChunk->GetPosZ() * cChunkDef::Width + a_RelZ - ); - } - } // if (CanWashAway) - - // Spread: - FLOG(" Spreading to {%d, %d, %d} with meta %d", - a_NearChunk->GetPosX() * cChunkDef::Width + a_RelX, - a_RelY, - a_NearChunk->GetPosZ() * cChunkDef::Width + a_RelZ, - a_NewMeta - ); - a_NearChunk->UnboundedRelSetBlock(a_RelX, a_RelY, a_RelZ, m_FluidBlock, a_NewMeta); -} - - - - - -bool cFloodyFluidSimulator::CheckNeighborsForSource(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ) -{ - FLOG(" Checking neighbors for source creation"); - - static const Vector3i NeighborCoords[] = - { - Vector3i(-1, 0, 0), - Vector3i( 1, 0, 0), - Vector3i( 0, 0, -1), - Vector3i( 0, 0, 1), - } ; - - int NumNeeded = m_NumNeighborsForSource; - for (int i = 0; i < ARRAYCOUNT(NeighborCoords); i++) - { - int x = a_RelX + NeighborCoords[i].x; - int y = a_RelY + NeighborCoords[i].y; - int z = a_RelZ + NeighborCoords[i].z; - BLOCKTYPE BlockType; - NIBBLETYPE BlockMeta; - if (!a_Chunk->UnboundedRelGetBlock(x, y, z, BlockType, BlockMeta)) - { - // Neighbor not available, skip it - continue; - } - // FLOG(" Neighbor at {%d, %d, %d}: %s", x, y, z, ItemToFullString(cItem(BlockType, 1, BlockMeta)).c_str()); - if ((BlockMeta == 0) && IsAnyFluidBlock(BlockType)) - { - NumNeeded--; - // FLOG(" Found a neighbor source at {%d, %d, %d}, NumNeeded := %d", x, y, z, NumNeeded); - if (NumNeeded == 0) - { - // Found enough, turn into a source and bail out - // FLOG(" Found enough neighbor sources, turning into a source"); - a_Chunk->SetBlock(a_RelX, a_RelY, a_RelZ, m_FluidBlock, 0); - return true; - } - } - } - // FLOG(" Not enough neighbors for turning into a source, NumNeeded = %d", NumNeeded); - return false; -} - - - - |