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-rw-r--r--source/cFluidSimulator.cpp1376
1 files changed, 688 insertions, 688 deletions
diff --git a/source/cFluidSimulator.cpp b/source/cFluidSimulator.cpp
index 38bf55d77..1301caa8c 100644
--- a/source/cFluidSimulator.cpp
+++ b/source/cFluidSimulator.cpp
@@ -1,688 +1,688 @@
-#include "Globals.h"
-
-#include <set>
-#include <queue>
-
-#include "cFluidSimulator.h"
-#include "cWorld.h"
-#include "Vector3i.h"
-#include "BlockID.h"
-#include "Defines.h"
-#include "cItem.h"
-#include "cBlockToPickup.h"
-
-
-
-
-
-//#define DEBUG_FLUID
-#ifdef DEBUG_FLUID
-#define LOG_FLUID(...) LOGWARN( __VA_ARGS__ )
-#else
-#define LOG_FLUID(...)
-#endif
-
-
-
-
-
-class cFluidSimulator::FluidData
-{
-public:
- FluidData( cWorld* a_World, cFluidSimulator *a_Simulator )
- : m_ActiveFluid( new std::set < Vector3i >() )
- , m_Simulator (a_Simulator)
- , m_Buffer( new std::set< Vector3i >() )
- , m_World( a_World )
- {}
-
- ~FluidData()
- {
- delete m_Buffer;
- delete m_ActiveFluid;
- }
-
- void UpdateWave(Vector3i a_LeftCorner, Vector3i a_CurBlock)
- {
- Vector3i LevelPoints [] = {
- Vector3i( a_CurBlock.x-1, a_CurBlock.y, a_CurBlock.z ),
- Vector3i( a_CurBlock.x+1, a_CurBlock.y, a_CurBlock.z ),
- Vector3i( a_CurBlock.x, a_CurBlock.y, a_CurBlock.z-1 ),
- Vector3i( a_CurBlock.x, a_CurBlock.y, a_CurBlock.z+1 ),
- };
-
- for(int i=0; i<4; i++)
- {
- Vector3i cur = LevelPoints[i];
- switch(m_Relief[cur.x][cur.z])
- {
- case E_HOLE:
- {
- m_StartSide[cur.x][cur.z] = m_StartSide[a_CurBlock.x][a_CurBlock.z];
- m_CurResult|=m_StartSide[cur.x][cur.z];
- m_NearestHole = m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1;
- LOG_FLUID("Hole found: %d \t curResult: %d", int(m_StartSide[cur.x][cur.z]), int(m_CurResult) );
- LOG_FLUID("Coordinates: (%d, %d)", cur.x, cur.z);
- }break;
-
- case E_BLOCK:
- {}break;
-
- case E_PLAIN:
- {
- if (m_WayLength[cur.x][cur.z] > m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1)
- {
- m_WayLength[cur.x][cur.z] = m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1;
- m_StartSide[cur.x][cur.z] = m_StartSide[a_CurBlock.x][a_CurBlock.z];
- m_WaveQueue.push(cur);
- }
- else if(m_WayLength[cur.x][cur.z] == m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1)
- {
- m_StartSide[cur.x][cur.z] |= m_StartSide[a_CurBlock.x][a_CurBlock.z];
- }
- LOG_FLUID("Plain step: (%d, %d) from %d", cur.x, cur.z, m_StartSide[cur.x][cur.z]);
- }
- }
- }
- }
-
- std::vector< Vector3i > GetLowestPoints( int a_X, int a_Y, int a_Z )
- {
-
- std::vector< Vector3i > Points; //result
-
- Vector3i CornerGlobal(a_X - AREA_WIDTH/2, a_Y, a_Z - AREA_WIDTH/2);
-
- //TODO: rewrite without relief, get blocks directly in algorithm
- for(int x=0; x<AREA_WIDTH; x++)
- {
- for(int z=0; z<AREA_WIDTH; z++)
- {
- char UpperBlock = m_World->GetBlock( CornerGlobal.x + x, CornerGlobal.y, CornerGlobal.z + z );
- char DownBlock = m_World->GetBlock( CornerGlobal.x + x, CornerGlobal.y-1, CornerGlobal.z + z );
-
- if(m_Simulator->IsSolidBlock(UpperBlock)||(m_Simulator->IsStationaryBlock(UpperBlock)))
- {
- m_Relief[x][z] = E_BLOCK;
- }
- else if(m_Simulator->IsSolidBlock(DownBlock))
- {
- m_Relief[x][z] = E_PLAIN;
- }
- else
- {
- m_Relief[x][z] = E_HOLE;
- }
- m_WayLength[x][z] = 255;
- m_StartSide[x][z] = E_SIDE_NONE;
- }
- LOG_FLUID("%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t", m_Relief[x][0], m_Relief[x][1], m_Relief[x][2], m_Relief[x][3], m_Relief[x][4], m_Relief[x][5], m_Relief[x][6], m_Relief[x][7], m_Relief[x][8], m_Relief[x][9], m_Relief[x][10]);
- }
-
- m_NearestHole = 5;
- m_CurResult = 0;
- while(!m_WaveQueue.empty()) m_WaveQueue.pop();
-
- int left = AREA_WIDTH/2 - 1;
- int right = AREA_WIDTH/2 + 1;
- int center = AREA_WIDTH/2;
-
- Vector3i r(right, 0, center); //right block
- Vector3i l(left, 0, center); //left block
- Vector3i f(center, 0, right); //front block
- Vector3i b(center, 0, left); //back block
- Vector3i c(center, 0, center); //center block
-
- m_WayLength[c.x][c.z] = 0;
-
- Vector3i Nearest[] = {r, l, f, b};
- unsigned char Sides[] = {E_SIDE_RIGHT, E_SIDE_LEFT, E_SIDE_FRONT, E_SIDE_BACK};
-
- for(int i=0; i<4; i++)
- {
- Vector3i cur = Nearest[i];
- switch(m_Relief[cur.x][cur.z])
- {
- case E_HOLE:
- {
- m_StartSide[cur.x][cur.z] = Sides[i];
- m_CurResult |= m_StartSide[cur.x][cur.z];
- m_NearestHole = 1;
- LOG_FLUID("Hole found: %d \t curResult: %d", int(Sides[i]), int(m_CurResult) );
- }break;
-
- case E_BLOCK:
- {}break;
-
- case E_PLAIN:
- {
- m_WaveQueue.push(cur);
- m_StartSide[cur.x][cur.z] = Sides[i];
- m_WayLength[cur.x][cur.z] = 1;
- LOG_FLUID("Plain found: %d", int(Sides[i]));
- }
- }
- }
-
- Vector3i curBlock;
-
- bool bContinue = !m_WaveQueue.empty();
-
- if(!m_WaveQueue.empty())
- {
- curBlock = m_WaveQueue.front();
- bContinue = (m_WayLength[curBlock.x][curBlock.z] < m_NearestHole);
- }
-
- while(bContinue)
- {
- LOG_FLUID("while iteration" );
- curBlock = m_WaveQueue.front();
- UpdateWave(CornerGlobal, curBlock);
- m_WaveQueue.pop();
-
- bContinue = ( (!m_WaveQueue.empty()) && (m_WayLength[m_WaveQueue.front().x][m_WaveQueue.front().z] < m_NearestHole) );
- }
-
-
-
- if(m_CurResult & E_SIDE_LEFT) Points.push_back(Vector3i( a_X-1, a_Y, a_Z ));
- if(m_CurResult & E_SIDE_RIGHT) Points.push_back(Vector3i( a_X+1, a_Y, a_Z ));
- if(m_CurResult & E_SIDE_FRONT) Points.push_back(Vector3i( a_X, a_Y, a_Z+1 ));
- if(m_CurResult & E_SIDE_BACK) Points.push_back(Vector3i( a_X, a_Y, a_Z-1 ));
-
- if(Points.empty())
- {
- Vector3i LevelPoints [] = {
- Vector3i( a_X-1, a_Y, a_Z ),
- Vector3i( a_X+1, a_Y, a_Z ),
- Vector3i( a_X, a_Y, a_Z-1 ),
- Vector3i( a_X, a_Y, a_Z+1 ),
- };
- for( int i = 0; i < 4; ++i )
- {
- char Block = m_World->GetBlock( LevelPoints[i].x, a_Y, LevelPoints[i].z );
- if( m_Simulator->IsPassableForFluid(Block) )
- Points.push_back( LevelPoints[i] );
- }
- }
-
- return Points;
- }
-
- std::set< Vector3i >* m_ActiveFluid;
- std::set< Vector3i >* m_Buffer;
- cWorld* m_World;
- cFluidSimulator *m_Simulator;
-
- const static int AREA_WIDTH = 11;
-
- const static unsigned char E_SIDE_RIGHT = 0x10;
- const static unsigned char E_SIDE_LEFT = 0x20;
- const static unsigned char E_SIDE_FRONT = 0x40;
- const static unsigned char E_SIDE_BACK = 0x80;
- const static unsigned char E_SIDE_NONE = 0x00;
-
- enum eRelief {E_HOLE = 0, E_PLAIN = 1, E_BLOCK = 2};
-
- eRelief m_Relief[AREA_WIDTH][AREA_WIDTH];
- unsigned char m_WayLength[AREA_WIDTH][AREA_WIDTH];
- unsigned char m_StartSide[AREA_WIDTH][AREA_WIDTH];
-
- std::queue<Vector3i> m_WaveQueue;
-
- int m_NearestHole;
- unsigned char m_CurResult;
-};
-
-
-
-
-
-cFluidSimulator::cFluidSimulator( cWorld* a_World )
- : cSimulator(a_World)
- , m_Data(0)
-{
- m_Data = new FluidData(a_World, this);
-}
-
-
-
-
-
-cFluidSimulator::~cFluidSimulator()
-{
- delete m_Data;
-}
-
-
-
-
-
-void cFluidSimulator::AddBlock( int a_X, int a_Y, int a_Z )
-{
- char BlockType = m_World->GetBlock(a_X, a_Y, a_Z);
- if (!IsAllowedBlock(BlockType)) //This should save very much time because it doesn´t have to iterate through all blocks
- {
- return;
- }
-
- std::set< Vector3i > & ActiveFluid = *m_Data->m_ActiveFluid;
- ActiveFluid.insert( Vector3i( a_X, a_Y, a_Z ) );
-}
-
-
-
-
-
-char cFluidSimulator::GetHighestLevelAround( int a_X, int a_Y, int a_Z )
-{
- char Max = m_MaxHeight + m_FlowReduction;
-
-#define __HIGHLEVEL_CHECK__( x, y, z ) \
- if( IsAllowedBlock( m_World->GetBlock( x, y, z ) ) ) \
- { \
- char Meta; \
- if( (Meta = m_World->GetBlockMeta( x, y, z ) ) < Max ) Max = Meta; \
- else if( Meta == m_MaxHeight + m_FlowReduction ) Max = 0; \
- if( Max == 0 ) return 0; \
- }
-
- __HIGHLEVEL_CHECK__( a_X-1, a_Y, a_Z );
- __HIGHLEVEL_CHECK__( a_X+1, a_Y, a_Z );
- __HIGHLEVEL_CHECK__( a_X, a_Y, a_Z-1 );
- __HIGHLEVEL_CHECK__( a_X, a_Y, a_Z+1 );
-
- return Max;
-}
-
-
-
-
-
-void cFluidSimulator::Simulate( float a_Dt )
-{
- m_Timer += a_Dt;
-
- if (m_Data->m_ActiveFluid->empty()) //Nothing to do if there is no active fluid ;) saves very little time ;D
- {
- return;
- }
-
- std::swap( m_Data->m_ActiveFluid, m_Data->m_Buffer ); // Swap so blocks can be added to empty ActiveFluid array
- m_Data->m_ActiveFluid->clear();
-
- std::set< Vector3i > & FluidBlocks = *m_Data->m_Buffer;
- for( std::set< Vector3i >::iterator itr = FluidBlocks.begin(); itr != FluidBlocks.end(); ++itr )
- {
- const Vector3i & pos = *itr;
-
- if(UniqueSituation(pos))
- {
- continue;
- }
-
- char BlockID = m_World->GetBlock( pos.x, pos.y, pos.z );
- if( IsAllowedBlock( BlockID ) ) // only care about own fluid
- {
- bool bIsFed = false;
- char Meta = m_World->GetBlockMeta( pos.x, pos.y, pos.z );
- char Feed = Meta;
- if( BlockID == m_StationaryFluidBlock) Meta = 0;
- if( Meta == 8 ) // Falling fluid
- {
- if( IsAllowedBlock( m_World->GetBlock(pos.x, pos.y+1, pos.z) ) ) // Block above is fluid
- {
- bIsFed = true;
- Meta = 0; // Make it a full block
- }
- }
- else if( Meta < m_FlowReduction ) // It's a full block, so it's always fed
- {
- bIsFed = true;
- }
- else
- {
- if( (Feed = GetHighestLevelAround( pos.x, pos.y, pos.z )) < Meta )
- bIsFed = true;
- }
-
-
- if( bIsFed )
- {
- char DownID = m_World->GetBlock( pos.x, pos.y-1, pos.z );
- bool bWashedAwayItem = CanWashAway( DownID );
- if( (IsPassableForFluid(DownID) || bWashedAwayItem) && !IsStationaryBlock(DownID) ) // free for fluid
- {
- if( bWashedAwayItem )
- {
- cItems Drops;
- cBlockToPickup::ToPickup(DownID, m_World->GetBlockMeta(pos.x, pos.y - 1, pos.z), E_ITEM_EMPTY, Drops);
- m_World->SpawnItemPickups(Drops, pos.x, pos.y - 1, pos.z);
- }
- if (pos.y > 0)
- {
- m_World->FastSetBlock( pos.x, pos.y-1, pos.z, m_FluidBlock, 8 ); // falling
- AddBlock( pos.x, pos.y-1, pos.z );
- ApplyUniqueToNearest(pos - Vector3i(0, 1, 0));
- }
- }
- if(IsSolidBlock(DownID)||( BlockID == m_StationaryFluidBlock)) // Not falling
- {
- if( Feed + m_FlowReduction < Meta )
- {
- m_World->FastSetBlock( pos.x, pos.y, pos.z, m_FluidBlock, Feed + m_FlowReduction );
- AddBlock( pos.x, pos.y, pos.z );
- ApplyUniqueToNearest(pos);
- }
- else if(( Meta < m_MaxHeight )||( BlockID == m_StationaryFluidBlock)) // max is the lowest, so it cannot spread
- {
- std::vector< Vector3i > Points = m_Data->GetLowestPoints( pos.x, pos.y, pos.z );
- for( std::vector< Vector3i >::iterator itr = Points.begin(); itr != Points.end(); ++itr )
- {
- Vector3i & p = *itr;
- char BlockID = m_World->GetBlock( p.x, p.y, p.z );
- bool bWashedAwayItem = CanWashAway( BlockID );
-
- if (!IsPassableForFluid(BlockID)) continue;
-
- if (!IsAllowedBlock(BlockID))
- {
- if (bWashedAwayItem)
- {
- cItems Drops;
- cBlockToPickup::ToPickup(DownID, m_World->GetBlockMeta(p.x, p.y, p.z), E_ITEM_EMPTY, Drops);
- m_World->SpawnItemPickups(Drops, p.x, p.y, p.z);
- }
-
- if( p.y == pos.y )
- {
- m_World->FastSetBlock(p.x, p.y, p.z, m_FluidBlock, Meta + m_FlowReduction);
- }
- else
- {
- m_World->FastSetBlock(p.x, p.y, p.z, m_FluidBlock, 8);
- }
- AddBlock( p.x, p.y, p.z );
- ApplyUniqueToNearest(p);
- }
- else // it's fluid
- {
- char PointMeta = m_World->GetBlockMeta( p.x, p.y, p.z );
- if( PointMeta > Meta + m_FlowReduction )
- {
- AddBlock( p.x, p.y, p.z );
- ApplyUniqueToNearest(p);
- }
- }
- }
- }
- }
- }
- else// not fed
- {
- m_World->FastSetBlock( pos.x, pos.y, pos.z, E_BLOCK_AIR, 0 );
- WakeUp( pos.x, pos.y, pos.z );
- }
- }
- }
-}
-
-
-
-
-
-bool cFluidSimulator::IsPassableForFluid(char a_BlockID)
-{
- return a_BlockID == E_BLOCK_AIR
- || a_BlockID == E_BLOCK_FIRE
- || IsAllowedBlock(a_BlockID)
- || CanWashAway(a_BlockID);
-}
-
-
-
-
-
-bool cFluidSimulator::IsStationaryBlock (char a_BlockID)
-{
- return a_BlockID == m_StationaryFluidBlock;
-}
-
-
-
-
-
-bool cFluidSimulator::CanWashAway( char a_BlockID )
-{
- switch( a_BlockID )
- {
- case E_BLOCK_YELLOW_FLOWER:
- case E_BLOCK_RED_ROSE:
- case E_BLOCK_RED_MUSHROOM:
- case E_BLOCK_BROWN_MUSHROOM:
- case E_BLOCK_CACTUS:
- return true;
- default:
- return false;
- };
-}
-
-
-
-
-
-bool cFluidSimulator::IsSolidBlock( char a_BlockID )
-{
- return !(a_BlockID == E_BLOCK_AIR
- || a_BlockID == E_BLOCK_FIRE
- || IsBlockLava(a_BlockID)
- || IsBlockWater(a_BlockID)
- || CanWashAway(a_BlockID));
-}
-
-
-
-
-
-//TODO Not working very well yet :s
-Direction cFluidSimulator::GetFlowingDirection(int a_X, int a_Y, int a_Z, bool a_Over)
-{
- char BlockID = m_World->GetBlock(a_X, a_Y, a_Z);
- if(!IsAllowedBlock(BlockID)) //No Fluid -> No Flowing direction :D
- return NONE;
-
-
- /*
- Disabled because of causing problems and beeing useless atm
- char BlockBelow = m_World->GetBlock(a_X, a_Y - 1, a_Z); //If there is nothing or fluid below it -> dominating flow is down :D
- if(BlockBelow == E_BLOCK_AIR || IsAllowedBlock(BlockBelow))
- return Y_MINUS;
- */
-
- char LowestPoint = m_World->GetBlockMeta(a_X, a_Y, a_Z); //Current Block Meta so only lower points will be counted
- int X = 0, Y = 0, Z = 0; //Lowest Pos will be stored here
-
- if(IsAllowedBlock(m_World->GetBlock(a_X, a_Y + 1, a_Z)) && a_Over) //check for upper block to flow because this also affects the flowing direction
- {
- return GetFlowingDirection(a_X, a_Y + 1, a_Z, false);
- }
-
- std::vector< Vector3i * > Points;
-
- Points.reserve(4); //Already allocate 4 places :D
-
- //add blocks around the checking pos
- Points.push_back(new Vector3i(a_X - 1, a_Y, a_Z));
- Points.push_back(new Vector3i(a_X + 1, a_Y, a_Z));
- Points.push_back(new Vector3i(a_X, a_Y, a_Z + 1));
- Points.push_back(new Vector3i(a_X, a_Y, a_Z - 1));
-
- for(std::vector<Vector3i *>::iterator it = Points.begin(); it < Points.end(); it++)
- {
- Vector3i *Pos = (*it);
- char BlockID = m_World->GetBlock(Pos->x, Pos->y, Pos->z);
- if(IsAllowedBlock(BlockID))
- {
- char Meta = m_World->GetBlockMeta(Pos->x, Pos->y, Pos->z);
-
- if(Meta > LowestPoint)
- {
- LowestPoint = Meta;
- X = Pos->x;
- Y = Pos->y;
- Z = Pos->z;
- }
- }else if(BlockID == E_BLOCK_AIR)
- {
- LowestPoint = 9; //This always dominates
- X = Pos->x;
- Y = Pos->y;
- Z = Pos->z;
-
- }
- delete Pos;
- }
-
- if(LowestPoint == m_World->GetBlockMeta(a_X, a_Y, a_Z))
- return NONE;
-
- if(a_X - X > 0)
- {
- return X_MINUS;
- }
-
- if(a_X - X < 0)
- {
- return X_PLUS;
- }
-
- if(a_Z - Z > 0)
- {
- return Z_MINUS;
- }
-
- if(a_Z - Z < 0)
- {
- return Z_PLUS;
- }
-
- return NONE;
-}
-
-
-
-
-
-bool cFluidSimulator::UniqueSituation(Vector3i a_Pos)
-{
- bool result = false;
-
- char BlockId = m_World->GetBlock( a_Pos.x, a_Pos.y, a_Pos.z );
- char Meta = m_World->GetBlockMeta( a_Pos.x, a_Pos.y, a_Pos.z );
-
- if(IsBlockWater(BlockId))
- {
-
- char UpperBlock = m_World->GetBlock( a_Pos.x, a_Pos.y + 1, a_Pos.z );
- if(IsBlockLava(UpperBlock))
- {
- m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_STONE, 0);
- }
-
-
- if(BlockId != E_BLOCK_STATIONARY_WATER)
- {
- char DownBlockId = m_World->GetBlock( a_Pos.x, a_Pos.y-1, a_Pos.z );
- if(IsSolidBlock(DownBlockId))
- {
- Vector3i LevelPoints [] = {
- Vector3i( a_Pos.x-1, a_Pos.y, a_Pos.z ),
- Vector3i( a_Pos.x+1, a_Pos.y, a_Pos.z ),
- Vector3i( a_Pos.x, a_Pos.y, a_Pos.z-1 ),
- Vector3i( a_Pos.x, a_Pos.y, a_Pos.z+1 ),
- };
- int SourceBlocksCount = 0;
- for(int i=0; i<4; i++)
- {
- if (m_World->GetBlock(LevelPoints[i].x, LevelPoints[i].y, LevelPoints[i].z)==E_BLOCK_STATIONARY_WATER)
- {
- SourceBlocksCount++;
- }
- }
- if(SourceBlocksCount>=2)
- {
- m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_STATIONARY_WATER, 0);
- }
- }
-
- }
- }
-
- if(IsBlockLava(BlockId))
- {
- bool bWater = false;
-
- char UpperBlock = m_World->GetBlock( a_Pos.x, a_Pos.y + 1, a_Pos.z );
- if (IsBlockWater(UpperBlock))
- {
- bWater = true;
- }
- else
- {
- Vector3i LevelPoints [] = {
- Vector3i( a_Pos.x-1, a_Pos.y, a_Pos.z ),
- Vector3i( a_Pos.x+1, a_Pos.y, a_Pos.z ),
- Vector3i( a_Pos.x, a_Pos.y, a_Pos.z-1 ),
- Vector3i( a_Pos.x, a_Pos.y, a_Pos.z+1 ),
- };
-
- for(int i=0; i<4; i++)
- {
- if (IsBlockWater(m_World->GetBlock(LevelPoints[i].x, LevelPoints[i].y, LevelPoints[i].z)))
- {
- bWater = true;
- }
- }
- }
-
-
- if(bWater)
- {
- if(BlockId == E_BLOCK_STATIONARY_LAVA)
- {
- m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_OBSIDIAN, 0);
- }
- else if (Meta<m_MaxHeight)
- {
- m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_COBBLESTONE, 0);
- }
- }
- }
-
- return result;
-}
-
-
-
-
-
-void cFluidSimulator::ApplyUniqueToNearest(Vector3i a_Pos)
-{
- Vector3i NearPoints [] = {
- Vector3i( a_Pos.x-1, a_Pos.y, a_Pos.z ),
- Vector3i( a_Pos.x+1, a_Pos.y, a_Pos.z ),
- Vector3i( a_Pos.x, a_Pos.y, a_Pos.z-1 ),
- Vector3i( a_Pos.x, a_Pos.y, a_Pos.z+1 ),
- Vector3i( a_Pos.x, a_Pos.y-1, a_Pos.z )
- };
-
- for(int i=0; i<5; i++)
- {
- UniqueSituation(NearPoints[i]);
- }
-}
-
-
-
-
+#include "Globals.h"
+
+#include <set>
+#include <queue>
+
+#include "cFluidSimulator.h"
+#include "cWorld.h"
+#include "Vector3i.h"
+#include "BlockID.h"
+#include "Defines.h"
+#include "cItem.h"
+#include "cBlockToPickup.h"
+
+
+
+
+
+//#define DEBUG_FLUID
+#ifdef DEBUG_FLUID
+#define LOG_FLUID(...) LOGWARN( __VA_ARGS__ )
+#else
+#define LOG_FLUID(...)
+#endif
+
+
+
+
+
+class cFluidSimulator::FluidData
+{
+public:
+ FluidData( cWorld* a_World, cFluidSimulator *a_Simulator )
+ : m_ActiveFluid( new std::set < Vector3i >() )
+ , m_Simulator (a_Simulator)
+ , m_Buffer( new std::set< Vector3i >() )
+ , m_World( a_World )
+ {}
+
+ ~FluidData()
+ {
+ delete m_Buffer;
+ delete m_ActiveFluid;
+ }
+
+ void UpdateWave(Vector3i a_LeftCorner, Vector3i a_CurBlock)
+ {
+ Vector3i LevelPoints [] = {
+ Vector3i( a_CurBlock.x-1, a_CurBlock.y, a_CurBlock.z ),
+ Vector3i( a_CurBlock.x+1, a_CurBlock.y, a_CurBlock.z ),
+ Vector3i( a_CurBlock.x, a_CurBlock.y, a_CurBlock.z-1 ),
+ Vector3i( a_CurBlock.x, a_CurBlock.y, a_CurBlock.z+1 ),
+ };
+
+ for(int i=0; i<4; i++)
+ {
+ Vector3i cur = LevelPoints[i];
+ switch(m_Relief[cur.x][cur.z])
+ {
+ case E_HOLE:
+ {
+ m_StartSide[cur.x][cur.z] = m_StartSide[a_CurBlock.x][a_CurBlock.z];
+ m_CurResult|=m_StartSide[cur.x][cur.z];
+ m_NearestHole = m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1;
+ LOG_FLUID("Hole found: %d \t curResult: %d", int(m_StartSide[cur.x][cur.z]), int(m_CurResult) );
+ LOG_FLUID("Coordinates: (%d, %d)", cur.x, cur.z);
+ }break;
+
+ case E_BLOCK:
+ {}break;
+
+ case E_PLAIN:
+ {
+ if (m_WayLength[cur.x][cur.z] > m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1)
+ {
+ m_WayLength[cur.x][cur.z] = m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1;
+ m_StartSide[cur.x][cur.z] = m_StartSide[a_CurBlock.x][a_CurBlock.z];
+ m_WaveQueue.push(cur);
+ }
+ else if(m_WayLength[cur.x][cur.z] == m_WayLength[a_CurBlock.x][a_CurBlock.z] + 1)
+ {
+ m_StartSide[cur.x][cur.z] |= m_StartSide[a_CurBlock.x][a_CurBlock.z];
+ }
+ LOG_FLUID("Plain step: (%d, %d) from %d", cur.x, cur.z, m_StartSide[cur.x][cur.z]);
+ }
+ }
+ }
+ }
+
+ std::vector< Vector3i > GetLowestPoints( int a_X, int a_Y, int a_Z )
+ {
+
+ std::vector< Vector3i > Points; //result
+
+ Vector3i CornerGlobal(a_X - AREA_WIDTH/2, a_Y, a_Z - AREA_WIDTH/2);
+
+ //TODO: rewrite without relief, get blocks directly in algorithm
+ for(int x=0; x<AREA_WIDTH; x++)
+ {
+ for(int z=0; z<AREA_WIDTH; z++)
+ {
+ char UpperBlock = m_World->GetBlock( CornerGlobal.x + x, CornerGlobal.y, CornerGlobal.z + z );
+ char DownBlock = m_World->GetBlock( CornerGlobal.x + x, CornerGlobal.y-1, CornerGlobal.z + z );
+
+ if(m_Simulator->IsSolidBlock(UpperBlock)||(m_Simulator->IsStationaryBlock(UpperBlock)))
+ {
+ m_Relief[x][z] = E_BLOCK;
+ }
+ else if(m_Simulator->IsSolidBlock(DownBlock))
+ {
+ m_Relief[x][z] = E_PLAIN;
+ }
+ else
+ {
+ m_Relief[x][z] = E_HOLE;
+ }
+ m_WayLength[x][z] = 255;
+ m_StartSide[x][z] = E_SIDE_NONE;
+ }
+ LOG_FLUID("%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t", m_Relief[x][0], m_Relief[x][1], m_Relief[x][2], m_Relief[x][3], m_Relief[x][4], m_Relief[x][5], m_Relief[x][6], m_Relief[x][7], m_Relief[x][8], m_Relief[x][9], m_Relief[x][10]);
+ }
+
+ m_NearestHole = 5;
+ m_CurResult = 0;
+ while(!m_WaveQueue.empty()) m_WaveQueue.pop();
+
+ int left = AREA_WIDTH/2 - 1;
+ int right = AREA_WIDTH/2 + 1;
+ int center = AREA_WIDTH/2;
+
+ Vector3i r(right, 0, center); //right block
+ Vector3i l(left, 0, center); //left block
+ Vector3i f(center, 0, right); //front block
+ Vector3i b(center, 0, left); //back block
+ Vector3i c(center, 0, center); //center block
+
+ m_WayLength[c.x][c.z] = 0;
+
+ Vector3i Nearest[] = {r, l, f, b};
+ unsigned char Sides[] = {E_SIDE_RIGHT, E_SIDE_LEFT, E_SIDE_FRONT, E_SIDE_BACK};
+
+ for(int i=0; i<4; i++)
+ {
+ Vector3i cur = Nearest[i];
+ switch(m_Relief[cur.x][cur.z])
+ {
+ case E_HOLE:
+ {
+ m_StartSide[cur.x][cur.z] = Sides[i];
+ m_CurResult |= m_StartSide[cur.x][cur.z];
+ m_NearestHole = 1;
+ LOG_FLUID("Hole found: %d \t curResult: %d", int(Sides[i]), int(m_CurResult) );
+ }break;
+
+ case E_BLOCK:
+ {}break;
+
+ case E_PLAIN:
+ {
+ m_WaveQueue.push(cur);
+ m_StartSide[cur.x][cur.z] = Sides[i];
+ m_WayLength[cur.x][cur.z] = 1;
+ LOG_FLUID("Plain found: %d", int(Sides[i]));
+ }
+ }
+ }
+
+ Vector3i curBlock;
+
+ bool bContinue = !m_WaveQueue.empty();
+
+ if(!m_WaveQueue.empty())
+ {
+ curBlock = m_WaveQueue.front();
+ bContinue = (m_WayLength[curBlock.x][curBlock.z] < m_NearestHole);
+ }
+
+ while(bContinue)
+ {
+ LOG_FLUID("while iteration" );
+ curBlock = m_WaveQueue.front();
+ UpdateWave(CornerGlobal, curBlock);
+ m_WaveQueue.pop();
+
+ bContinue = ( (!m_WaveQueue.empty()) && (m_WayLength[m_WaveQueue.front().x][m_WaveQueue.front().z] < m_NearestHole) );
+ }
+
+
+
+ if(m_CurResult & E_SIDE_LEFT) Points.push_back(Vector3i( a_X-1, a_Y, a_Z ));
+ if(m_CurResult & E_SIDE_RIGHT) Points.push_back(Vector3i( a_X+1, a_Y, a_Z ));
+ if(m_CurResult & E_SIDE_FRONT) Points.push_back(Vector3i( a_X, a_Y, a_Z+1 ));
+ if(m_CurResult & E_SIDE_BACK) Points.push_back(Vector3i( a_X, a_Y, a_Z-1 ));
+
+ if(Points.empty())
+ {
+ Vector3i LevelPoints [] = {
+ Vector3i( a_X-1, a_Y, a_Z ),
+ Vector3i( a_X+1, a_Y, a_Z ),
+ Vector3i( a_X, a_Y, a_Z-1 ),
+ Vector3i( a_X, a_Y, a_Z+1 ),
+ };
+ for( int i = 0; i < 4; ++i )
+ {
+ char Block = m_World->GetBlock( LevelPoints[i].x, a_Y, LevelPoints[i].z );
+ if( m_Simulator->IsPassableForFluid(Block) )
+ Points.push_back( LevelPoints[i] );
+ }
+ }
+
+ return Points;
+ }
+
+ std::set< Vector3i >* m_ActiveFluid;
+ std::set< Vector3i >* m_Buffer;
+ cWorld* m_World;
+ cFluidSimulator *m_Simulator;
+
+ const static int AREA_WIDTH = 11;
+
+ const static unsigned char E_SIDE_RIGHT = 0x10;
+ const static unsigned char E_SIDE_LEFT = 0x20;
+ const static unsigned char E_SIDE_FRONT = 0x40;
+ const static unsigned char E_SIDE_BACK = 0x80;
+ const static unsigned char E_SIDE_NONE = 0x00;
+
+ enum eRelief {E_HOLE = 0, E_PLAIN = 1, E_BLOCK = 2};
+
+ eRelief m_Relief[AREA_WIDTH][AREA_WIDTH];
+ unsigned char m_WayLength[AREA_WIDTH][AREA_WIDTH];
+ unsigned char m_StartSide[AREA_WIDTH][AREA_WIDTH];
+
+ std::queue<Vector3i> m_WaveQueue;
+
+ int m_NearestHole;
+ unsigned char m_CurResult;
+};
+
+
+
+
+
+cFluidSimulator::cFluidSimulator( cWorld* a_World )
+ : cSimulator(a_World)
+ , m_Data(0)
+{
+ m_Data = new FluidData(a_World, this);
+}
+
+
+
+
+
+cFluidSimulator::~cFluidSimulator()
+{
+ delete m_Data;
+}
+
+
+
+
+
+void cFluidSimulator::AddBlock( int a_X, int a_Y, int a_Z )
+{
+ char BlockType = m_World->GetBlock(a_X, a_Y, a_Z);
+ if (!IsAllowedBlock(BlockType)) //This should save very much time because it doesn´t have to iterate through all blocks
+ {
+ return;
+ }
+
+ std::set< Vector3i > & ActiveFluid = *m_Data->m_ActiveFluid;
+ ActiveFluid.insert( Vector3i( a_X, a_Y, a_Z ) );
+}
+
+
+
+
+
+char cFluidSimulator::GetHighestLevelAround( int a_X, int a_Y, int a_Z )
+{
+ char Max = m_MaxHeight + m_FlowReduction;
+
+#define __HIGHLEVEL_CHECK__( x, y, z ) \
+ if( IsAllowedBlock( m_World->GetBlock( x, y, z ) ) ) \
+ { \
+ char Meta; \
+ if( (Meta = m_World->GetBlockMeta( x, y, z ) ) < Max ) Max = Meta; \
+ else if( Meta == m_MaxHeight + m_FlowReduction ) Max = 0; \
+ if( Max == 0 ) return 0; \
+ }
+
+ __HIGHLEVEL_CHECK__( a_X-1, a_Y, a_Z );
+ __HIGHLEVEL_CHECK__( a_X+1, a_Y, a_Z );
+ __HIGHLEVEL_CHECK__( a_X, a_Y, a_Z-1 );
+ __HIGHLEVEL_CHECK__( a_X, a_Y, a_Z+1 );
+
+ return Max;
+}
+
+
+
+
+
+void cFluidSimulator::Simulate( float a_Dt )
+{
+ m_Timer += a_Dt;
+
+ if (m_Data->m_ActiveFluid->empty()) //Nothing to do if there is no active fluid ;) saves very little time ;D
+ {
+ return;
+ }
+
+ std::swap( m_Data->m_ActiveFluid, m_Data->m_Buffer ); // Swap so blocks can be added to empty ActiveFluid array
+ m_Data->m_ActiveFluid->clear();
+
+ std::set< Vector3i > & FluidBlocks = *m_Data->m_Buffer;
+ for( std::set< Vector3i >::iterator itr = FluidBlocks.begin(); itr != FluidBlocks.end(); ++itr )
+ {
+ const Vector3i & pos = *itr;
+
+ if(UniqueSituation(pos))
+ {
+ continue;
+ }
+
+ char BlockID = m_World->GetBlock( pos.x, pos.y, pos.z );
+ if( IsAllowedBlock( BlockID ) ) // only care about own fluid
+ {
+ bool bIsFed = false;
+ char Meta = m_World->GetBlockMeta( pos.x, pos.y, pos.z );
+ char Feed = Meta;
+ if( BlockID == m_StationaryFluidBlock) Meta = 0;
+ if( Meta == 8 ) // Falling fluid
+ {
+ if( IsAllowedBlock( m_World->GetBlock(pos.x, pos.y+1, pos.z) ) ) // Block above is fluid
+ {
+ bIsFed = true;
+ Meta = 0; // Make it a full block
+ }
+ }
+ else if( Meta < m_FlowReduction ) // It's a full block, so it's always fed
+ {
+ bIsFed = true;
+ }
+ else
+ {
+ if( (Feed = GetHighestLevelAround( pos.x, pos.y, pos.z )) < Meta )
+ bIsFed = true;
+ }
+
+
+ if( bIsFed )
+ {
+ char DownID = m_World->GetBlock( pos.x, pos.y-1, pos.z );
+ bool bWashedAwayItem = CanWashAway( DownID );
+ if( (IsPassableForFluid(DownID) || bWashedAwayItem) && !IsStationaryBlock(DownID) ) // free for fluid
+ {
+ if( bWashedAwayItem )
+ {
+ cItems Drops;
+ cBlockToPickup::ToPickup(DownID, m_World->GetBlockMeta(pos.x, pos.y - 1, pos.z), E_ITEM_EMPTY, Drops);
+ m_World->SpawnItemPickups(Drops, pos.x, pos.y - 1, pos.z);
+ }
+ if (pos.y > 0)
+ {
+ m_World->FastSetBlock( pos.x, pos.y-1, pos.z, m_FluidBlock, 8 ); // falling
+ AddBlock( pos.x, pos.y-1, pos.z );
+ ApplyUniqueToNearest(pos - Vector3i(0, 1, 0));
+ }
+ }
+ if(IsSolidBlock(DownID)||( BlockID == m_StationaryFluidBlock)) // Not falling
+ {
+ if( Feed + m_FlowReduction < Meta )
+ {
+ m_World->FastSetBlock( pos.x, pos.y, pos.z, m_FluidBlock, Feed + m_FlowReduction );
+ AddBlock( pos.x, pos.y, pos.z );
+ ApplyUniqueToNearest(pos);
+ }
+ else if(( Meta < m_MaxHeight )||( BlockID == m_StationaryFluidBlock)) // max is the lowest, so it cannot spread
+ {
+ std::vector< Vector3i > Points = m_Data->GetLowestPoints( pos.x, pos.y, pos.z );
+ for( std::vector< Vector3i >::iterator itr = Points.begin(); itr != Points.end(); ++itr )
+ {
+ Vector3i & p = *itr;
+ char BlockID = m_World->GetBlock( p.x, p.y, p.z );
+ bool bWashedAwayItem = CanWashAway( BlockID );
+
+ if (!IsPassableForFluid(BlockID)) continue;
+
+ if (!IsAllowedBlock(BlockID))
+ {
+ if (bWashedAwayItem)
+ {
+ cItems Drops;
+ cBlockToPickup::ToPickup(DownID, m_World->GetBlockMeta(p.x, p.y, p.z), E_ITEM_EMPTY, Drops);
+ m_World->SpawnItemPickups(Drops, p.x, p.y, p.z);
+ }
+
+ if( p.y == pos.y )
+ {
+ m_World->FastSetBlock(p.x, p.y, p.z, m_FluidBlock, Meta + m_FlowReduction);
+ }
+ else
+ {
+ m_World->FastSetBlock(p.x, p.y, p.z, m_FluidBlock, 8);
+ }
+ AddBlock( p.x, p.y, p.z );
+ ApplyUniqueToNearest(p);
+ }
+ else // it's fluid
+ {
+ char PointMeta = m_World->GetBlockMeta( p.x, p.y, p.z );
+ if( PointMeta > Meta + m_FlowReduction )
+ {
+ AddBlock( p.x, p.y, p.z );
+ ApplyUniqueToNearest(p);
+ }
+ }
+ }
+ }
+ }
+ }
+ else// not fed
+ {
+ m_World->FastSetBlock( pos.x, pos.y, pos.z, E_BLOCK_AIR, 0 );
+ WakeUp( pos.x, pos.y, pos.z );
+ }
+ }
+ }
+}
+
+
+
+
+
+bool cFluidSimulator::IsPassableForFluid(char a_BlockID)
+{
+ return a_BlockID == E_BLOCK_AIR
+ || a_BlockID == E_BLOCK_FIRE
+ || IsAllowedBlock(a_BlockID)
+ || CanWashAway(a_BlockID);
+}
+
+
+
+
+
+bool cFluidSimulator::IsStationaryBlock (char a_BlockID)
+{
+ return a_BlockID == m_StationaryFluidBlock;
+}
+
+
+
+
+
+bool cFluidSimulator::CanWashAway( char a_BlockID )
+{
+ switch( a_BlockID )
+ {
+ case E_BLOCK_YELLOW_FLOWER:
+ case E_BLOCK_RED_ROSE:
+ case E_BLOCK_RED_MUSHROOM:
+ case E_BLOCK_BROWN_MUSHROOM:
+ case E_BLOCK_CACTUS:
+ return true;
+ default:
+ return false;
+ };
+}
+
+
+
+
+
+bool cFluidSimulator::IsSolidBlock( char a_BlockID )
+{
+ return !(a_BlockID == E_BLOCK_AIR
+ || a_BlockID == E_BLOCK_FIRE
+ || IsBlockLava(a_BlockID)
+ || IsBlockWater(a_BlockID)
+ || CanWashAway(a_BlockID));
+}
+
+
+
+
+
+//TODO Not working very well yet :s
+Direction cFluidSimulator::GetFlowingDirection(int a_X, int a_Y, int a_Z, bool a_Over)
+{
+ char BlockID = m_World->GetBlock(a_X, a_Y, a_Z);
+ if(!IsAllowedBlock(BlockID)) //No Fluid -> No Flowing direction :D
+ return NONE;
+
+
+ /*
+ Disabled because of causing problems and beeing useless atm
+ char BlockBelow = m_World->GetBlock(a_X, a_Y - 1, a_Z); //If there is nothing or fluid below it -> dominating flow is down :D
+ if(BlockBelow == E_BLOCK_AIR || IsAllowedBlock(BlockBelow))
+ return Y_MINUS;
+ */
+
+ char LowestPoint = m_World->GetBlockMeta(a_X, a_Y, a_Z); //Current Block Meta so only lower points will be counted
+ int X = 0, Y = 0, Z = 0; //Lowest Pos will be stored here
+
+ if(IsAllowedBlock(m_World->GetBlock(a_X, a_Y + 1, a_Z)) && a_Over) //check for upper block to flow because this also affects the flowing direction
+ {
+ return GetFlowingDirection(a_X, a_Y + 1, a_Z, false);
+ }
+
+ std::vector< Vector3i * > Points;
+
+ Points.reserve(4); //Already allocate 4 places :D
+
+ //add blocks around the checking pos
+ Points.push_back(new Vector3i(a_X - 1, a_Y, a_Z));
+ Points.push_back(new Vector3i(a_X + 1, a_Y, a_Z));
+ Points.push_back(new Vector3i(a_X, a_Y, a_Z + 1));
+ Points.push_back(new Vector3i(a_X, a_Y, a_Z - 1));
+
+ for(std::vector<Vector3i *>::iterator it = Points.begin(); it < Points.end(); it++)
+ {
+ Vector3i *Pos = (*it);
+ char BlockID = m_World->GetBlock(Pos->x, Pos->y, Pos->z);
+ if(IsAllowedBlock(BlockID))
+ {
+ char Meta = m_World->GetBlockMeta(Pos->x, Pos->y, Pos->z);
+
+ if(Meta > LowestPoint)
+ {
+ LowestPoint = Meta;
+ X = Pos->x;
+ Y = Pos->y;
+ Z = Pos->z;
+ }
+ }else if(BlockID == E_BLOCK_AIR)
+ {
+ LowestPoint = 9; //This always dominates
+ X = Pos->x;
+ Y = Pos->y;
+ Z = Pos->z;
+
+ }
+ delete Pos;
+ }
+
+ if(LowestPoint == m_World->GetBlockMeta(a_X, a_Y, a_Z))
+ return NONE;
+
+ if(a_X - X > 0)
+ {
+ return X_MINUS;
+ }
+
+ if(a_X - X < 0)
+ {
+ return X_PLUS;
+ }
+
+ if(a_Z - Z > 0)
+ {
+ return Z_MINUS;
+ }
+
+ if(a_Z - Z < 0)
+ {
+ return Z_PLUS;
+ }
+
+ return NONE;
+}
+
+
+
+
+
+bool cFluidSimulator::UniqueSituation(Vector3i a_Pos)
+{
+ bool result = false;
+
+ char BlockId = m_World->GetBlock( a_Pos.x, a_Pos.y, a_Pos.z );
+ char Meta = m_World->GetBlockMeta( a_Pos.x, a_Pos.y, a_Pos.z );
+
+ if(IsBlockWater(BlockId))
+ {
+
+ char UpperBlock = m_World->GetBlock( a_Pos.x, a_Pos.y + 1, a_Pos.z );
+ if(IsBlockLava(UpperBlock))
+ {
+ m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_STONE, 0);
+ }
+
+
+ if(BlockId != E_BLOCK_STATIONARY_WATER)
+ {
+ char DownBlockId = m_World->GetBlock( a_Pos.x, a_Pos.y-1, a_Pos.z );
+ if(IsSolidBlock(DownBlockId))
+ {
+ Vector3i LevelPoints [] = {
+ Vector3i( a_Pos.x-1, a_Pos.y, a_Pos.z ),
+ Vector3i( a_Pos.x+1, a_Pos.y, a_Pos.z ),
+ Vector3i( a_Pos.x, a_Pos.y, a_Pos.z-1 ),
+ Vector3i( a_Pos.x, a_Pos.y, a_Pos.z+1 ),
+ };
+ int SourceBlocksCount = 0;
+ for(int i=0; i<4; i++)
+ {
+ if (m_World->GetBlock(LevelPoints[i].x, LevelPoints[i].y, LevelPoints[i].z)==E_BLOCK_STATIONARY_WATER)
+ {
+ SourceBlocksCount++;
+ }
+ }
+ if(SourceBlocksCount>=2)
+ {
+ m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_STATIONARY_WATER, 0);
+ }
+ }
+
+ }
+ }
+
+ if(IsBlockLava(BlockId))
+ {
+ bool bWater = false;
+
+ char UpperBlock = m_World->GetBlock( a_Pos.x, a_Pos.y + 1, a_Pos.z );
+ if (IsBlockWater(UpperBlock))
+ {
+ bWater = true;
+ }
+ else
+ {
+ Vector3i LevelPoints [] = {
+ Vector3i( a_Pos.x-1, a_Pos.y, a_Pos.z ),
+ Vector3i( a_Pos.x+1, a_Pos.y, a_Pos.z ),
+ Vector3i( a_Pos.x, a_Pos.y, a_Pos.z-1 ),
+ Vector3i( a_Pos.x, a_Pos.y, a_Pos.z+1 ),
+ };
+
+ for(int i=0; i<4; i++)
+ {
+ if (IsBlockWater(m_World->GetBlock(LevelPoints[i].x, LevelPoints[i].y, LevelPoints[i].z)))
+ {
+ bWater = true;
+ }
+ }
+ }
+
+
+ if(bWater)
+ {
+ if(BlockId == E_BLOCK_STATIONARY_LAVA)
+ {
+ m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_OBSIDIAN, 0);
+ }
+ else if (Meta<m_MaxHeight)
+ {
+ m_World->SetBlock(a_Pos.x, a_Pos.y, a_Pos.z, E_BLOCK_COBBLESTONE, 0);
+ }
+ }
+ }
+
+ return result;
+}
+
+
+
+
+
+void cFluidSimulator::ApplyUniqueToNearest(Vector3i a_Pos)
+{
+ Vector3i NearPoints [] = {
+ Vector3i( a_Pos.x-1, a_Pos.y, a_Pos.z ),
+ Vector3i( a_Pos.x+1, a_Pos.y, a_Pos.z ),
+ Vector3i( a_Pos.x, a_Pos.y, a_Pos.z-1 ),
+ Vector3i( a_Pos.x, a_Pos.y, a_Pos.z+1 ),
+ Vector3i( a_Pos.x, a_Pos.y-1, a_Pos.z )
+ };
+
+ for(int i=0; i<5; i++)
+ {
+ UniqueSituation(NearPoints[i]);
+ }
+}
+
+
+
+