diff options
Diffstat (limited to 'src/Chunk.cpp')
| -rw-r--r-- | src/Chunk.cpp | 2818 |
1 files changed, 2818 insertions, 0 deletions
diff --git a/src/Chunk.cpp b/src/Chunk.cpp new file mode 100644 index 000000000..9c195fdf8 --- /dev/null +++ b/src/Chunk.cpp @@ -0,0 +1,2818 @@ +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + +#ifndef _WIN32 + #include <cstdlib> +#endif + + +#include "Chunk.h" +#include "World.h" +#include "ClientHandle.h" +#include "Server.h" +#include "zlib/zlib.h" +#include "Defines.h" +#include "BlockEntities/ChestEntity.h" +#include "BlockEntities/DispenserEntity.h" +#include "BlockEntities/DropperEntity.h" +#include "BlockEntities/FurnaceEntity.h" +#include "BlockEntities/HopperEntity.h" +#include "BlockEntities/JukeboxEntity.h" +#include "BlockEntities/NoteEntity.h" +#include "BlockEntities/SignEntity.h" +#include "Entities/Pickup.h" +#include "Item.h" +#include "Noise.h" +#include "Root.h" +#include "MersenneTwister.h" +#include "Entities/Player.h" +#include "BlockArea.h" +#include "Bindings/PluginManager.h" +#include "Blocks/BlockHandler.h" +#include "Simulator/FluidSimulator.h" +#include "MobCensus.h" +#include "MobSpawner.h" + + +#include "json/json.h" + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// sSetBlock: + +sSetBlock::sSetBlock( int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta ) // absolute block position + : x( a_BlockX ) + , y( a_BlockY ) + , z( a_BlockZ ) + , BlockType( a_BlockType ) + , BlockMeta( a_BlockMeta ) +{ + cChunkDef::AbsoluteToRelative(x, y, z, ChunkX, ChunkZ); +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cChunk: + +cChunk::cChunk( + int a_ChunkX, int a_ChunkY, int a_ChunkZ, + cChunkMap * a_ChunkMap, cWorld * a_World, + cChunk * a_NeighborXM, cChunk * a_NeighborXP, cChunk * a_NeighborZM, cChunk * a_NeighborZP +) + : m_PosX( a_ChunkX ) + , m_PosY( a_ChunkY ) + , m_PosZ( a_ChunkZ ) + , m_BlockTickX( 0 ) + , m_BlockTickY( 0 ) + , m_BlockTickZ( 0 ) + , m_World( a_World ) + , m_ChunkMap(a_ChunkMap) + , m_IsValid(false) + , m_IsLightValid(false) + , m_IsDirty(false) + , m_IsSaving(false) + , m_StayCount(0) + , m_NeighborXM(a_NeighborXM) + , m_NeighborXP(a_NeighborXP) + , m_NeighborZM(a_NeighborZM) + , m_NeighborZP(a_NeighborZP) + , m_WaterSimulatorData(a_World->GetWaterSimulator()->CreateChunkData()) + , m_LavaSimulatorData (a_World->GetLavaSimulator ()->CreateChunkData()) +{ + if (a_NeighborXM != NULL) + { + a_NeighborXM->m_NeighborXP = this; + } + if (a_NeighborXP != NULL) + { + a_NeighborXP->m_NeighborXM = this; + } + if (a_NeighborZM != NULL) + { + a_NeighborZM->m_NeighborZP = this; + } + if (a_NeighborZP != NULL) + { + a_NeighborZP->m_NeighborZM = this; + } +} + + + + + +cChunk::~cChunk() +{ + cPluginManager::Get()->CallHookChunkUnloaded(m_World, m_PosX, m_PosZ); + + // LOGINFO("### delete cChunk() (%i, %i) from %p, thread 0x%x ###", m_PosX, m_PosZ, this, GetCurrentThreadId() ); + + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + delete *itr; + } + m_BlockEntities.clear(); + + // Remove and destroy all entities that are not players: + cEntityList Entities; + std::swap(Entities, m_Entities); // Need another list because cEntity destructors check if they've been removed from chunk + for (cEntityList::const_iterator itr = Entities.begin(); itr != Entities.end(); ++itr) + { + if (!(*itr)->IsPlayer()) + { + (*itr)->Destroy(false); + delete *itr; + } + } + + if (m_NeighborXM != NULL) + { + m_NeighborXM->m_NeighborXP = NULL; + } + if (m_NeighborXP != NULL) + { + m_NeighborXP->m_NeighborXM = NULL; + } + if (m_NeighborZM != NULL) + { + m_NeighborZM->m_NeighborZP = NULL; + } + if (m_NeighborZP != NULL) + { + m_NeighborZP->m_NeighborZM = NULL; + } + delete m_WaterSimulatorData; + delete m_LavaSimulatorData; +} + + + + + +void cChunk::SetValid(void) +{ + m_IsValid = true; + + m_World->GetChunkMap()->ChunkValidated(); +} + + + + + +void cChunk::MarkRegenerating(void) +{ + // Tell all clients attached to this chunk that they want this chunk: + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr) + { + (*itr)->AddWantedChunk(m_PosX, m_PosZ); + } // for itr - m_LoadedByClient[] +} + + + + + +bool cChunk::CanUnload(void) +{ + return m_LoadedByClient.empty() && !m_IsDirty && (m_StayCount == 0); +} + + + + + +void cChunk::MarkSaving(void) +{ + m_IsSaving = true; +} + + + + + +void cChunk::MarkSaved(void) +{ + if (!m_IsSaving) + { + return; + } + m_IsDirty = false; +} + + + + + +void cChunk::MarkLoaded(void) +{ + m_IsDirty = false; + SetValid(); +} + + + + + +void cChunk::MarkLoadFailed(void) +{ + if (m_IsValid) + { + return; + } + + m_HasLoadFailed = true; +} + + + + + +void cChunk::GetAllData(cChunkDataCallback & a_Callback) +{ + a_Callback.HeightMap (&m_HeightMap); + a_Callback.BiomeData (&m_BiomeMap); + a_Callback.BlockTypes (m_BlockTypes); + a_Callback.BlockMeta (m_BlockMeta); + a_Callback.LightIsValid (m_IsLightValid); + a_Callback.BlockLight (m_BlockLight); + a_Callback.BlockSkyLight(m_BlockSkyLight); + + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr) + { + a_Callback.Entity(*itr); + } + + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + a_Callback.BlockEntity(*itr); + } +} + + + + + +void cChunk::SetAllData( + const BLOCKTYPE * a_BlockTypes, + const NIBBLETYPE * a_BlockMeta, + const NIBBLETYPE * a_BlockLight, + const NIBBLETYPE * a_BlockSkyLight, + const HeightMap * a_HeightMap, + const BiomeMap & a_BiomeMap, + cBlockEntityList & a_BlockEntities +) +{ + memcpy(m_BiomeMap, a_BiomeMap, sizeof(m_BiomeMap)); + + if (a_HeightMap != NULL) + { + memcpy(m_HeightMap, a_HeightMap, sizeof(m_HeightMap)); + } + + memcpy(m_BlockTypes, a_BlockTypes, sizeof(m_BlockTypes)); + memcpy(m_BlockMeta, a_BlockMeta, sizeof(m_BlockMeta)); + if (a_BlockLight != NULL) + { + memcpy(m_BlockLight, a_BlockLight, sizeof(m_BlockLight)); + } + if (a_BlockSkyLight != NULL) + { + memcpy(m_BlockSkyLight, a_BlockSkyLight, sizeof(m_BlockSkyLight)); + } + + m_IsLightValid = (a_BlockLight != NULL) && (a_BlockSkyLight != NULL); + + if (a_HeightMap == NULL) + { + CalculateHeightmap(); + } + + // Clear the block entities present - either the loader / saver has better, or we'll create empty ones: + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + delete *itr; + } + std::swap(a_BlockEntities, m_BlockEntities); + + // Set all block entities' World variable: + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + (*itr)->SetWorld(m_World); + } + + // Create block entities that the loader didn't load; fill them with defaults + CreateBlockEntities(); + + // Set the chunk data as valid. This may be needed for some simulators that perform actions upon block adding (Vaporize) + SetValid(); + + // Wake up all simulators for their respective blocks: + WakeUpSimulators(); + + m_HasLoadFailed = false; +} + + + + + +void cChunk::SetLight( + const cChunkDef::BlockNibbles & a_BlockLight, + const cChunkDef::BlockNibbles & a_SkyLight +) +{ + // TODO: We might get cases of wrong lighting when a chunk changes in the middle of a lighting calculation. + // Postponing until we see how bad it is :) + memcpy(m_BlockLight, a_BlockLight, sizeof(m_BlockLight)); + memcpy(m_BlockSkyLight, a_SkyLight, sizeof(m_BlockSkyLight)); + m_IsLightValid = true; +} + + + + + +void cChunk::GetBlockTypes(BLOCKTYPE * a_BlockTypes) +{ + memcpy(a_BlockTypes, m_BlockTypes, NumBlocks); +} + + + + + +void cChunk::WriteBlockArea(cBlockArea & a_Area, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes) +{ + if ((a_DataTypes & (cBlockArea::baTypes | cBlockArea::baMetas)) != (cBlockArea::baTypes | cBlockArea::baMetas)) + { + LOGWARNING("cChunk::WriteBlockArea(): unsupported datatype request, can write only types + metas (0x%x), requested 0x%x. Ignoring.", + (cBlockArea::baTypes | cBlockArea::baMetas), a_DataTypes & (cBlockArea::baTypes | cBlockArea::baMetas) + ); + return; + } + + // SizeX, SizeZ are the dimensions of the block data to copy to the chunk (size of the geometric union) + + int BlockStartX = std::max(a_MinBlockX, m_PosX * cChunkDef::Width); + int BlockEndX = std::min(a_MinBlockX + a_Area.GetSizeX(), (m_PosX + 1) * cChunkDef::Width); + int BlockStartZ = std::max(a_MinBlockZ, m_PosZ * cChunkDef::Width); + int BlockEndZ = std::min(a_MinBlockZ + a_Area.GetSizeZ(), (m_PosZ + 1) * cChunkDef::Width); + int SizeX = BlockEndX - BlockStartX; + int SizeZ = BlockEndZ - BlockStartZ; + int OffX = BlockStartX - m_PosX * cChunkDef::Width; + int OffZ = BlockStartZ - m_PosZ * cChunkDef::Width; + int BaseX = BlockStartX - a_MinBlockX; + int BaseZ = BlockStartZ - a_MinBlockZ; + int SizeY = a_Area.GetSizeY(); + + // TODO: Improve this by not calling FastSetBlock() and doing the processing here + // so that the heightmap is touched only once for each column. + BLOCKTYPE * AreaBlockTypes = a_Area.GetBlockTypes(); + NIBBLETYPE * AreaBlockMetas = a_Area.GetBlockMetas(); + for (int y = 0; y < SizeY; y++) + { + int ChunkY = a_MinBlockY + y; + int AreaY = y; + for (int z = 0; z < SizeZ; z++) + { + int ChunkZ = OffZ + z; + int AreaZ = BaseZ + z; + for (int x = 0; x < SizeX; x++) + { + int ChunkX = OffX + x; + int AreaX = BaseX + x; + int idx = a_Area.MakeIndex(AreaX, AreaY, AreaZ); + BLOCKTYPE BlockType = AreaBlockTypes[idx]; + NIBBLETYPE BlockMeta = AreaBlockMetas[idx]; + FastSetBlock(ChunkX, ChunkY, ChunkZ, BlockType, BlockMeta); + } // for x + } // for z + } // for y +} + + + + + +/// Returns true if there is a block entity at the coords specified +bool cChunk::HasBlockEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ) +{ + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + if ( + ((*itr)->GetPosX() == a_BlockX) && + ((*itr)->GetPosY() == a_BlockY) && + ((*itr)->GetPosZ() == a_BlockZ) + ) + { + return true; + } + } // for itr - m_BlockEntities[] + return false; +} + + + + + +/// Sets or resets the internal flag that prevents chunk from being unloaded +void cChunk::Stay(bool a_Stay) +{ + m_StayCount += (a_Stay ? 1 : -1); + ASSERT(m_StayCount >= 0); +} + + + + +void cChunk::CollectMobCensus(cMobCensus& toFill) +{ + toFill.CollectSpawnableChunk(*this); + std::list<const Vector3d*> playerPositions; + cPlayer* currentPlayer; + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(), end = m_LoadedByClient.end(); itr != end; ++itr) + { + currentPlayer = (*itr)->GetPlayer(); + playerPositions.push_back(&(currentPlayer->GetPosition())); + } + + Vector3d currentPosition; + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr) + { + //LOGD("Counting entity #%i (%s)", (*itr)->GetUniqueID(), (*itr)->GetClass()); + if ((*itr)->IsMob()) + { + cMonster& Monster = (cMonster&)(**itr); + currentPosition = Monster.GetPosition(); + for (std::list<const Vector3d*>::const_iterator itr2 = playerPositions.begin(); itr2 != playerPositions.end(); itr2 ++) + { + toFill.CollectMob(Monster,*this,(currentPosition-**itr2).SqrLength()); + } + } + } // for itr - m_Entitites[] +} + + + + +void cChunk::getThreeRandomNumber(int& a_X, int& a_Y, int& a_Z,int a_MaxX, int a_MaxY, int a_MaxZ) +{ + ASSERT(a_MaxX * a_MaxY * a_MaxZ * 8 < 0x00ffffff); + int Random = m_World->GetTickRandomNumber(0x00ffffff); + a_X = Random % (a_MaxX * 2); + a_Y = (Random / (a_MaxX * 2)) % (a_MaxY * 2); + a_Z = ((Random / (a_MaxX * 2)) / (a_MaxY * 2)) % (a_MaxZ * 2); + a_X /= 2; + a_Y /= 2; + a_Z /= 2; +} + + + + + +void cChunk::getRandomBlockCoords(int& a_X, int& a_Y, int& a_Z) +{ + // MG TODO : check if this kind of optimization (only one random call) is still needed + // MG TODO : if so propagate it + + getThreeRandomNumber(a_X, a_Y, a_Z, Width, Height-2, Width); + a_Y++; +} + + + + + +void cChunk::SpawnMobs(cMobSpawner& a_MobSpawner) +{ + int Center_X,Center_Y,Center_Z; + getRandomBlockCoords(Center_X,Center_Y,Center_Z); + + BLOCKTYPE PackCenterBlock = GetBlock(Center_X, Center_Y, Center_Z); + if (a_MobSpawner.CheckPackCenter(PackCenterBlock)) + { + a_MobSpawner.NewPack(); + int NumberOfTries = 0; + int NumberOfSuccess = 0; + int MaxNbOfSuccess = 4; // this can be changed during the process for Wolves and Ghass + while (NumberOfTries < 12 && NumberOfSuccess < MaxNbOfSuccess) + { + const int HorizontalRange = 20; // MG TODO : relocate + const int VerticalRange = 0; // MG TODO : relocate + int Try_X, Try_Y, Try_Z; + getThreeRandomNumber(Try_X, Try_Y, Try_Z, 2*HorizontalRange+1 , 2*VerticalRange+1 , 2*HorizontalRange+1); + Try_X -= HorizontalRange; + Try_Y -= VerticalRange; + Try_Z -= HorizontalRange; + Try_X += Center_X; + Try_Y += Center_Y; + Try_Z += Center_Z; + + ASSERT(Try_Y > 0); + ASSERT(Try_Y < cChunkDef::Height-1); + + EMCSBiome Biome = m_ChunkMap->GetBiomeAt (Try_X, Try_Z); + // MG TODO : + // Moon cycle (for slime) + // check player and playerspawn presence < 24 blocks + // check mobs presence on the block + + // MG TODO : check that "Level" really means Y + + NIBBLETYPE SkyLight = 0; + + NIBBLETYPE BlockLight = 0; + + if (IsLightValid()) + { + cEntity* newMob = a_MobSpawner.TryToSpawnHere(this, Try_X, Try_Y, Try_Z, Biome, MaxNbOfSuccess); + if (newMob) + { + int WorldX, WorldY, WorldZ; + PositionToWorldPosition(Try_X, Try_Y, Try_Z, WorldX, WorldY, WorldZ); + double ActualX = WorldX + 0.5; + double ActualZ = WorldZ + 0.5; + newMob->SetPosition(ActualX, WorldY, ActualZ); + LOGD("Spawning %s #%i at %d,%d,%d",newMob->GetClass(),newMob->GetUniqueID(),WorldX, WorldY, WorldZ); + NumberOfSuccess++; + } + } + + NumberOfTries++; + } + } + +} + + + + + +void cChunk::Tick(float a_Dt) +{ + BroadcastPendingBlockChanges(); + + // Unload the chunk from all clients that have queued unloading: + for (cClientHandleList::iterator itr = m_UnloadQuery.begin(), end = m_UnloadQuery.end(); itr != end; ++itr) + { + (*itr)->SendUnloadChunk(m_PosX, m_PosZ); + } + m_UnloadQuery.clear(); + + // Set all blocks that have been queued for setting later: + ProcessQueuedSetBlocks(); + + CheckBlocks(); + + // Tick simulators: + m_World->GetSimulatorManager()->SimulateChunk(a_Dt, m_PosX, m_PosZ, this); + + TickBlocks(); + + // Tick all block entities in this chunk: + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + m_IsDirty = (*itr)->Tick(a_Dt, *this) | m_IsDirty; + } + + // Tick all entities in this chunk (except mobs): + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr) + { + // Mobs are tickes inside MobTick (as we don't have to tick them if they are far away from players) + if (!((*itr)->IsMob())) + { + (*itr)->Tick(a_Dt, *this); + } + } // for itr - m_Entitites[] + + // Remove all entities that were scheduled for removal: + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end();) + { + if ((*itr)->IsDestroyed()) + { + LOGD("Destroying entity #%i (%s)", (*itr)->GetUniqueID(), (*itr)->GetClass()); + cEntity * ToDelete = *itr; + itr = m_Entities.erase(itr); + delete ToDelete; + continue; + } + itr++; + } // for itr - m_Entitites[] + + // If any entity moved out of the chunk, move it to the neighbor: + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end();) + { + if ( + ((*itr)->GetChunkX() != m_PosX) || + ((*itr)->GetChunkZ() != m_PosZ) + ) + { + MoveEntityToNewChunk(*itr); + itr = m_Entities.erase(itr); + } + else + { + ++itr; + } + } + + ApplyWeatherToTop(); +} + + + + + +void cChunk::TickBlock(int a_RelX, int a_RelY, int a_RelZ) +{ + unsigned Index = MakeIndex(a_RelX, a_RelY, a_RelZ); + if (Index == INDEX_OUT_OF_RANGE) + { + // An assert has already been made in MakeIndex() + return; + } + cBlockHandler * Handler = BlockHandler(m_BlockTypes[Index]); + ASSERT(Handler != NULL); // Happenned on server restart, FS #243 + Handler->OnUpdate(*this, a_RelX, a_RelY, a_RelZ); +} + + + + + +void cChunk::MoveEntityToNewChunk(cEntity * a_Entity) +{ + cChunk * Neighbor = GetNeighborChunk(a_Entity->GetChunkX() * cChunkDef::Width, a_Entity->GetChunkZ() * cChunkDef::Width); + if (Neighbor == NULL) + { + Neighbor = m_ChunkMap->GetChunkNoLoad(a_Entity->GetChunkX(), ZERO_CHUNK_Y, a_Entity->GetChunkZ()); + if (Neighbor == NULL) + { + // TODO: What to do with this? + LOGWARNING("%s: Failed to move entity, destination chunk unreachable. Entity lost", __FUNCTION__); + return; + } + } + + ASSERT(Neighbor != this); // Moving into the same chunk? wtf? + + Neighbor->AddEntity(a_Entity); + + class cMover : + public cClientDiffCallback + { + virtual void Removed(cClientHandle * a_Client) override + { + a_Client->SendDestroyEntity(*m_Entity); + } + + virtual void Added(cClientHandle * a_Client) override + { + m_Entity->SpawnOn(*a_Client); + } + + cEntity * m_Entity; + + public: + cMover(cEntity * a_Entity) : + m_Entity(a_Entity) + {} + } Mover(a_Entity); + + m_ChunkMap->CompareChunkClients(this, Neighbor, Mover); +} + + + + + +void cChunk::ProcessQueuedSetBlocks(void) +{ + Int64 CurrTick = m_World->GetWorldAge(); + for (sSetBlockQueueVector::iterator itr = m_SetBlockQueue.begin(); itr != m_SetBlockQueue.end();) + { + if (itr->m_Tick <= CurrTick) + { + if (itr->m_PreviousType != E_BLOCK_AIR) // PreviousType defaults to -1 if not specified + { + if (GetBlock(itr->m_RelX, itr->m_RelY, itr->m_RelZ) == itr->m_PreviousType) + { + // Current world age is bigger than/equal to target world age - delay time reached AND + // Previous block type was the same as current block type (to prevent duplication) + // Since blocktypes were the same, we just need to set the meta + SetMeta(itr->m_RelX, itr->m_RelY, itr->m_RelZ, itr->m_BlockMeta); + itr = m_SetBlockQueue.erase(itr); + LOGD("Successfully set queued block - previous and current types matched"); + } + else + { + itr = m_SetBlockQueue.erase(itr); + LOGD("Failure setting queued block - previous and current blocktypes didn't match"); + } + } + else + { + // Current world age is bigger than/equal to target world age - delay time reached + SetBlock(itr->m_RelX, itr->m_RelY, itr->m_RelZ, itr->m_BlockType, itr->m_BlockMeta); + itr = m_SetBlockQueue.erase(itr); + LOGD("Successfully set queued block - previous type ignored"); + } + } + else + { + // Not yet + ++itr; + continue; + } + } // for itr - m_SetBlockQueue[] +} + + + + + +void cChunk::BroadcastPendingBlockChanges(void) +{ + if (m_PendingSendBlocks.empty()) + { + return; + } + + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(), end = m_LoadedByClient.end(); itr != end; ++itr) + { + (*itr)->SendBlockChanges(m_PosX, m_PosZ, m_PendingSendBlocks); + } + m_PendingSendBlocks.clear(); +} + + + + + +void cChunk::CheckBlocks(void) +{ + if (m_ToTickBlocks.size() == 0) + { + return; + } + std::vector<unsigned int> ToTickBlocks; + std::swap(m_ToTickBlocks, ToTickBlocks); + + for (std::vector<unsigned int>::const_iterator itr = ToTickBlocks.begin(), end = ToTickBlocks.end(); itr != end; ++itr) + { + unsigned int index = (*itr); + Vector3i BlockPos = IndexToCoordinate(index); + + cBlockHandler * Handler = BlockHandler(GetBlock(index)); + Handler->Check(BlockPos.x, BlockPos.y, BlockPos.z, *this); + } // for itr - ToTickBlocks[] +} + + + + + +void cChunk::TickBlocks(void) +{ + // Tick dem blocks + // _X: We must limit the random number or else we get a nasty int overflow bug ( http://forum.mc-server.org/showthread.php?tid=457 ) + int RandomX = m_World->GetTickRandomNumber(0x00ffffff); + int RandomY = m_World->GetTickRandomNumber(0x00ffffff); + int RandomZ = m_World->GetTickRandomNumber(0x00ffffff); + int TickX = m_BlockTickX; + int TickY = m_BlockTickY; + int TickZ = m_BlockTickZ; + + // This for loop looks disgusting, but it actually does a simple thing - first processes m_BlockTick, then adds random to it + // This is so that SetNextBlockTick() works + for (int i = 0; i < 50; i++, + + // This weird construct (*2, then /2) is needed, + // otherwise the blocktick distribution is too biased towards even coords! + + TickX = (TickX + RandomX) % (Width * 2), + TickY = (TickY + RandomY) % (Height * 2), + TickZ = (TickZ + RandomZ) % (Width * 2), + m_BlockTickX = TickX / 2, + m_BlockTickY = TickY / 2, + m_BlockTickZ = TickZ / 2 + ) + { + + if (m_BlockTickY > cChunkDef::GetHeight(m_HeightMap, m_BlockTickX, m_BlockTickZ)) + { + continue; // It's all air up here + } + + unsigned int Index = MakeIndexNoCheck(m_BlockTickX, m_BlockTickY, m_BlockTickZ); + cBlockHandler * Handler = BlockHandler(m_BlockTypes[Index]); + ASSERT(Handler != NULL); // Happenned on server restart, FS #243 + Handler->OnUpdate(*this, m_BlockTickX, m_BlockTickY, m_BlockTickZ); + } // for i - tickblocks +} + + + + + +void cChunk::ApplyWeatherToTop() +{ + if ( + (m_World->GetTickRandomNumber(100) != 0) || + ( + (m_World->GetWeather() != eWeather_Rain) && + (m_World->GetWeather() != eWeather_ThunderStorm) + ) + ) + { + // Not the right weather, or not at this tick; bail out + return; + } + + int X = m_World->GetTickRandomNumber(15); + int Z = m_World->GetTickRandomNumber(15); + switch (GetBiomeAt(X, Z)) + { + case biTaiga: + case biFrozenOcean: + case biFrozenRiver: + case biIcePlains: + case biIceMountains: + case biTaigaHills: + { + // TODO: Check light levels, don't snow over when the BlockLight is higher than (7?) + int Height = GetHeight(X, Z); + BLOCKTYPE TopBlock = GetBlock(X, Height, Z); + NIBBLETYPE TopMeta = GetMeta (X, Height, Z); + if (m_World->IsDeepSnowEnabled() && (TopBlock == E_BLOCK_SNOW)) + { + int MaxSize = 7; + BLOCKTYPE BlockType[4]; + NIBBLETYPE BlockMeta[4]; + UnboundedRelGetBlock(X - 1, Height, Z, BlockType[0], BlockMeta[0]); + UnboundedRelGetBlock(X + 1, Height, Z, BlockType[1], BlockMeta[1]); + UnboundedRelGetBlock(X, Height, Z - 1, BlockType[2], BlockMeta[2]); + UnboundedRelGetBlock(X, Height, Z + 1, BlockType[3], BlockMeta[3]); + for (int i = 0; i < 4; i++) + { + switch (BlockType[i]) + { + case E_BLOCK_AIR: + { + MaxSize = 0; + break; + } + case E_BLOCK_SNOW: + { + MaxSize = std::min(BlockMeta[i] + 1, MaxSize); + break; + } + } + } + if (TopMeta < MaxSize) + { + FastSetBlock(X, Height, Z, E_BLOCK_SNOW, TopMeta + 1); + } + else if (TopMeta > MaxSize) + { + FastSetBlock(X, Height, Z, E_BLOCK_SNOW, TopMeta - 1); + } + } + else if (g_BlockIsSnowable[TopBlock]) + { + SetBlock(X, Height + 1, Z, E_BLOCK_SNOW, 0); + } + else if ((TopBlock == E_BLOCK_WATER) || (TopBlock == E_BLOCK_STATIONARY_WATER)) + { + SetBlock(X, Height, Z, E_BLOCK_ICE, 0); + } + else if ( + (m_World->IsDeepSnowEnabled()) && + ( + (TopBlock == E_BLOCK_RED_ROSE) || + (TopBlock == E_BLOCK_YELLOW_FLOWER) || + (TopBlock == E_BLOCK_RED_MUSHROOM) || + (TopBlock == E_BLOCK_BROWN_MUSHROOM) + ) + ) + { + SetBlock(X, Height, Z, E_BLOCK_SNOW, 0); + } + break; + } // case (snowy biomes) + // TODO: Rainy biomes should check for farmland and cauldrons + default: + { + break; + } + } // switch (biome) +} + + + + + +void cChunk::GrowMelonPumpkin(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, MTRand & a_TickRandom) +{ + // Convert the stem BlockType into produce BlockType + BLOCKTYPE ProduceType; + switch (a_BlockType) + { + case E_BLOCK_MELON_STEM: ProduceType = E_BLOCK_MELON; break; + case E_BLOCK_PUMPKIN_STEM: ProduceType = E_BLOCK_PUMPKIN; break; + default: + { + ASSERT(!"Unhandled blocktype in TickMelonPumpkin()"); + return; + } + } + + // Check if there's another melon / pumpkin around that stem, if so, abort: + bool IsValid; + BLOCKTYPE BlockType[4]; + NIBBLETYPE BlockMeta; // unused + IsValid = UnboundedRelGetBlock(a_RelX + 1, a_RelY, a_RelZ, BlockType[0], BlockMeta); + IsValid = IsValid && UnboundedRelGetBlock(a_RelX - 1, a_RelY, a_RelZ, BlockType[1], BlockMeta); + IsValid = IsValid && UnboundedRelGetBlock(a_RelX, a_RelY, a_RelZ + 1, BlockType[2], BlockMeta); + IsValid = IsValid && UnboundedRelGetBlock(a_RelX, a_RelY, a_RelZ - 1, BlockType[3], BlockMeta); + if ( + !IsValid || + (BlockType[0] == ProduceType) || + (BlockType[1] == ProduceType) || + (BlockType[2] == ProduceType) || + (BlockType[3] == ProduceType) + ) + { + // Neighbors not valid or already taken by the same produce + return; + } + + // Pick a direction in which to place the produce: + int x = 0, z = 0; + int CheckType = a_TickRandom.randInt(3); // The index to the neighbors array which should be checked for emptiness + switch (CheckType) + { + case 0: x = 1; break; + case 1: x = -1; break; + case 2: z = 1; break; + case 3: z = -1; break; + } + + // Check that the block in that direction is empty: + switch (BlockType[CheckType]) + { + case E_BLOCK_AIR: + case E_BLOCK_SNOW: + case E_BLOCK_TALL_GRASS: + case E_BLOCK_DEAD_BUSH: + { + break; + } + default: return; + } + + // Check if there's soil under the neighbor. We already know the neighbors are valid. Place produce if ok + BLOCKTYPE Soil; + UnboundedRelGetBlock(a_RelX + x, a_RelY - 1, a_RelZ + z, Soil, BlockMeta); + switch (Soil) + { + case E_BLOCK_DIRT: + case E_BLOCK_GRASS: + case E_BLOCK_FARMLAND: + { + // DEBUG: This is here to catch FS #349 - melons growing over other crops. + LOG("Growing melon/pumpkin overwriting %s, growing on %s", + ItemTypeToString(BlockType[CheckType]).c_str(), + ItemTypeToString(Soil).c_str() + ); + // Place a randomly-facing produce: + UnboundedRelFastSetBlock(a_RelX + x, a_RelY, a_RelZ + z, ProduceType, (NIBBLETYPE)(a_TickRandom.randInt(4) % 4)); + break; + } + } +} + + + + + +void cChunk::GrowSugarcane(int a_RelX, int a_RelY, int a_RelZ, int a_NumBlocks) +{ + // Check the total height of the sugarcane blocks here: + int Top = a_RelY + 1; + while ( + (Top < cChunkDef::Height) && + (GetBlock(a_RelX, Top, a_RelZ) == E_BLOCK_SUGARCANE) + ) + { + ++Top; + } + int Bottom = a_RelY - 1; + while ( + (Bottom > 0) && + (GetBlock(a_RelX, Bottom, a_RelZ) == E_BLOCK_SUGARCANE) + ) + { + --Bottom; + } + + // Grow by at most a_NumBlocks, but no more than max height: + int ToGrow = std::min(a_NumBlocks, m_World->GetMaxSugarcaneHeight() + 1 - (Top - Bottom)); + for (int i = 0; i < ToGrow; i++) + { + BLOCKTYPE BlockType; + NIBBLETYPE BlockMeta; + if (UnboundedRelGetBlock(a_RelX, Top + i, a_RelZ, BlockType, BlockMeta) && (BlockType == E_BLOCK_AIR)) + { + UnboundedRelFastSetBlock(a_RelX, Top + i, a_RelZ, E_BLOCK_SUGARCANE, 0); + } + else + { + break; + } + } // for i +} + + + + + +void cChunk::GrowCactus(int a_RelX, int a_RelY, int a_RelZ, int a_NumBlocks) +{ + // Check the total height of the sugarcane blocks here: + int Top = a_RelY + 1; + while ( + (Top < cChunkDef::Height) && + (GetBlock(a_RelX, Top, a_RelZ) == E_BLOCK_CACTUS) + ) + { + ++Top; + } + int Bottom = a_RelY - 1; + while ( + (Bottom > 0) && + (GetBlock(a_RelX, Bottom, a_RelZ) == E_BLOCK_CACTUS) + ) + { + --Bottom; + } + + // Grow by at most a_NumBlocks, but no more than max height: + int ToGrow = std::min(a_NumBlocks, m_World->GetMaxCactusHeight() + 1 - (Top - Bottom)); + for (int i = 0; i < ToGrow; i++) + { + BLOCKTYPE BlockType; + NIBBLETYPE BlockMeta; + if (UnboundedRelGetBlock(a_RelX, Top + i, a_RelZ, BlockType, BlockMeta) && (BlockType == E_BLOCK_AIR)) + { + // TODO: Check the surrounding blocks, if they aren't air, break the cactus block into pickups (and continue breaking blocks above in the next loop iterations) + UnboundedRelFastSetBlock(a_RelX, Top + i, a_RelZ, E_BLOCK_CACTUS, 0); + } + else + { + break; + } + } // for i +} + + + + + +bool cChunk::UnboundedRelGetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) const +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + LOGWARNING("%s: requesting a block with a_RelY out of range: %d", __FUNCTION__, a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + Chunk->GetBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); + return true; +} + + + + + +bool cChunk::UnboundedRelGetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType) const +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + LOGWARNING("%s: requesting a block with a_RelY out of range: %d", __FUNCTION__, a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + a_BlockType = Chunk->GetBlock(a_RelX, a_RelY, a_RelZ); + return true; +} + + + + + +bool cChunk::UnboundedRelGetBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE & a_BlockMeta) const +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + LOGWARNING("%s: requesting a block with a_RelY out of range: %d", __FUNCTION__, a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + a_BlockMeta = Chunk->GetMeta(a_RelX, a_RelY, a_RelZ); + return true; +} + + + + + +bool cChunk::UnboundedRelGetBlockBlockLight(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE & a_BlockBlockLight) const +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + LOGWARNING("%s: requesting a block with a_RelY out of range: %d", __FUNCTION__, a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + a_BlockBlockLight = Chunk->GetBlockLight(a_RelX, a_RelY, a_RelZ); + return true; +} + + + + + +bool cChunk::UnboundedRelGetBlockSkyLight(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE & a_BlockSkyLight) const +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + LOGWARNING("%s: requesting a block with a_RelY out of range: %d", __FUNCTION__, a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + a_BlockSkyLight = Chunk->GetSkyLight(a_RelX, a_RelY, a_RelZ); + return true; +} + + + + + +bool cChunk::UnboundedRelGetBlockLights(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE & a_BlockLight, NIBBLETYPE & a_SkyLight) const +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + LOGWARNING("%s: requesting a block with a_RelY out of range: %d", __FUNCTION__, a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + int idx = Chunk->MakeIndex(a_RelX, a_RelY, a_RelZ); + a_BlockLight = Chunk->GetBlockLight(idx); + a_SkyLight = Chunk->GetSkyLight(idx); + return true; +} + + + + + +bool cChunk::UnboundedRelSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) +{ + if ((a_RelY < 0) || (a_RelY > cChunkDef::Height)) + { + LOGWARNING("UnboundedRelSetBlock(): requesting a block with a_RelY out of range: %d", a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + Chunk->SetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); + return true; +} + + + + + +bool cChunk::UnboundedRelFastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) +{ + if ((a_RelY < 0) || (a_RelY > cChunkDef::Height)) + { + LOGWARNING("UnboundedRelFastSetBlock(): requesting a block with a_RelY out of range: %d", a_RelY); + return false; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk == NULL) || !Chunk->IsValid()) + { + // The chunk is not available, bail out + return false; + } + Chunk->FastSetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); + return true; +} + + + + + +void cChunk::UnboundedQueueTickBlock(int a_RelX, int a_RelY, int a_RelZ) +{ + if ((a_RelY < 0) || (a_RelY >= cChunkDef::Height)) + { + // Outside of chunkmap + return; + } + cChunk * Chunk = GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ); + if ((Chunk != NULL) && Chunk->IsValid()) + { + Chunk->QueueTickBlock(a_RelX, a_RelY, a_RelZ); + } +} + + + + + +int cChunk::GetHeight(int a_X, int a_Z) +{ + ASSERT((a_X >= 0) && (a_X < Width) && (a_Z >= 0) && (a_Z < Width)); + + if ((a_X >= 0) && (a_X < Width) && (a_Z >= 0) && (a_Z < Width)) + { + return m_HeightMap[a_X + a_Z * Width]; + } + return 0; +} + + + + + +void cChunk::CreateBlockEntities(void) +{ + for (int x = 0; x < Width; x++) + { + for (int z = 0; z < Width; z++) + { + for (int y = 0; y < Height; y++) + { + BLOCKTYPE BlockType = cChunkDef::GetBlock(m_BlockTypes, x, y, z); + switch (BlockType) + { + case E_BLOCK_CHEST: + case E_BLOCK_DISPENSER: + case E_BLOCK_DROPPER: + case E_BLOCK_ENDER_CHEST: + case E_BLOCK_LIT_FURNACE: + case E_BLOCK_FURNACE: + case E_BLOCK_HOPPER: + case E_BLOCK_SIGN_POST: + case E_BLOCK_WALLSIGN: + case E_BLOCK_NOTE_BLOCK: + case E_BLOCK_JUKEBOX: + { + if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) + { + m_BlockEntities.push_back(cBlockEntity::CreateByBlockType( + BlockType, GetMeta(x, y, z), + x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width, m_World + )); + } + break; + } + } // switch (BlockType) + } // for y + } // for z + } // for x +} + + + + + +void cChunk::WakeUpSimulators(void) +{ + cSimulator * WaterSimulator = m_World->GetWaterSimulator(); + cSimulator * LavaSimulator = m_World->GetLavaSimulator(); + int BaseX = m_PosX * cChunkDef::Width; + int BaseZ = m_PosZ * cChunkDef::Width; + for (int x = 0; x < Width; x++) + { + int BlockX = x + BaseX; + for (int z = 0; z < Width; z++) + { + int BlockZ = z + BaseZ; + for (int y = GetHeight(x, z); y >= 0; y--) + { + switch (cChunkDef::GetBlock(m_BlockTypes, x, y, z)) + { + case E_BLOCK_WATER: + { + WaterSimulator->AddBlock(BlockX, y, BlockZ, this); + break; + } + case E_BLOCK_LAVA: + { + LavaSimulator->AddBlock(BlockX, y, BlockZ, this); + break; + } + } // switch (BlockType) + } // for y + } // for z + } // for x +} + + + + + +void cChunk::CalculateHeightmap() +{ + for (int x = 0; x < Width; x++) + { + for (int z = 0; z < Width; z++) + { + for (int y = Height - 1; y > -1; y--) + { + int index = MakeIndex( x, y, z ); + if (m_BlockTypes[index] != E_BLOCK_AIR) + { + m_HeightMap[x + z * Width] = (unsigned char)y; + break; + } + } // for y + } // for z + } // for x +} + + + + + +void cChunk::SetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) +{ + FastSetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); + + const int index = MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); + + // Tick this block and its neighbors: + m_ToTickBlocks.push_back(index); + QueueTickBlockNeighbors(a_RelX, a_RelY, a_RelZ); + + // If there was a block entity, remove it: + Vector3i WorldPos = PositionToWorldPosition(a_RelX, a_RelY, a_RelZ); + cBlockEntity * BlockEntity = GetBlockEntity(WorldPos); + if (BlockEntity != NULL) + { + BlockEntity->Destroy(); + RemoveBlockEntity(BlockEntity); + delete BlockEntity; + } + + // If the new block is a block entity, create the entity object: + switch (a_BlockType) + { + case E_BLOCK_CHEST: + case E_BLOCK_DISPENSER: + case E_BLOCK_DROPPER: + case E_BLOCK_ENDER_CHEST: + case E_BLOCK_LIT_FURNACE: + case E_BLOCK_FURNACE: + case E_BLOCK_HOPPER: + case E_BLOCK_SIGN_POST: + case E_BLOCK_WALLSIGN: + case E_BLOCK_NOTE_BLOCK: + case E_BLOCK_JUKEBOX: + { + AddBlockEntity(cBlockEntity::CreateByBlockType(a_BlockType, a_BlockMeta, WorldPos.x, WorldPos.y, WorldPos.z, m_World)); + break; + } + } // switch (a_BlockType) +} + + + + + +void cChunk::QueueSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Int64 a_Tick, BLOCKTYPE a_PreviousBlockType) +{ + m_SetBlockQueue.push_back(sSetBlockQueueItem(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta, a_Tick, a_PreviousBlockType)); +} + + + + + +void cChunk::QueueTickBlock(int a_RelX, int a_RelY, int a_RelZ) +{ + ASSERT ( + (a_RelX >= 0) && (a_RelX < Width) && + (a_RelY >= 0) && (a_RelY < Height) && + (a_RelZ >= 0) && (a_RelZ < Width) + ); // Coords need to be valid + + if (!IsValid()) + { + return; + } + + m_ToTickBlocks.push_back(MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ)); +} + + + + + +void cChunk::QueueTickBlockNeighbors(int a_RelX, int a_RelY, int a_RelZ) +{ + struct + { + int x, y, z; + } + Coords[] = + { + { 1, 0, 0}, + {-1, 0, 0}, + { 0, 1, 0}, + { 0, -1, 0}, + { 0, 0, 1}, + { 0, 0, -1}, + } ; + for (int i = 0; i < ARRAYCOUNT(Coords); i++) + { + UnboundedQueueTickBlock(a_RelX + Coords[i].x, a_RelY + Coords[i].y, a_RelZ + Coords[i].z); + } // for i - Coords[] +} + + + + + +void cChunk::FastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta) +{ + ASSERT(!((a_RelX < 0) || (a_RelX >= Width) || (a_RelY < 0) || (a_RelY >= Height) || (a_RelZ < 0) || (a_RelZ >= Width))); + + ASSERT(IsValid()); + + const int index = MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); + const BLOCKTYPE OldBlockType = cChunkDef::GetBlock(m_BlockTypes, index); + const BLOCKTYPE OldBlockMeta = GetNibble(m_BlockMeta, index); + if ((OldBlockType == a_BlockType) && (OldBlockMeta == a_BlockMeta)) + { + return; + } + + MarkDirty(); + + m_BlockTypes[index] = a_BlockType; + + // The client doesn't need to distinguish between stationary and nonstationary fluids: + if ( + (OldBlockMeta != a_BlockMeta) || // Different meta always gets sent to the client + !( + ((OldBlockType == E_BLOCK_STATIONARY_WATER) && (a_BlockType == E_BLOCK_WATER)) || // Replacing stationary water with water + ((OldBlockType == E_BLOCK_WATER) && (a_BlockType == E_BLOCK_STATIONARY_WATER)) || // Replacing water with stationary water + ((OldBlockType == E_BLOCK_STATIONARY_LAVA) && (a_BlockType == E_BLOCK_LAVA)) || // Replacing stationary water with water + ((OldBlockType == E_BLOCK_LAVA) && (a_BlockType == E_BLOCK_STATIONARY_LAVA)) // Replacing water with stationary water + ) + ) + { + m_PendingSendBlocks.push_back(sSetBlock(m_PosX, m_PosZ, a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta)); + } + + SetNibble(m_BlockMeta, index, a_BlockMeta); + + // ONLY recalculate lighting if it's necessary! + if( + (g_BlockLightValue[OldBlockType ] != g_BlockLightValue[a_BlockType]) || + (g_BlockSpreadLightFalloff[OldBlockType] != g_BlockSpreadLightFalloff[a_BlockType]) || + (g_BlockTransparent[OldBlockType] != g_BlockTransparent[a_BlockType]) + ) + { + m_IsLightValid = false; + } + + // Update heightmap, if needed: + if (a_RelY >= m_HeightMap[a_RelX + a_RelZ * Width]) + { + if (a_BlockType != E_BLOCK_AIR) + { + m_HeightMap[a_RelX + a_RelZ * Width] = (unsigned char)a_RelY; + } + else + { + for (int y = a_RelY - 1; y > 0; --y) + { + if (m_BlockTypes[MakeIndexNoCheck(a_RelX, y, a_RelZ)] != E_BLOCK_AIR) + { + m_HeightMap[a_RelX + a_RelZ * Width] = (unsigned char)y; + break; + } + } // for y - column in m_BlockData + } + } +} + + + + + +void cChunk::SendBlockTo(int a_RelX, int a_RelY, int a_RelZ, cClientHandle * a_Client) +{ + // The coords must be valid, because the upper level already does chunk lookup. No need to check them again. + // There's an debug-time assert in MakeIndexNoCheck anyway + unsigned int index = MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); + + if (a_Client == NULL) + { + // Queue the block for all clients in the chunk (will be sent in Tick()) + m_PendingSendBlocks.push_back(sSetBlock(m_PosX, m_PosZ, a_RelX, a_RelY, a_RelZ, GetBlock(index), GetMeta(index))); + return; + } + + Vector3i wp = PositionToWorldPosition(a_RelX, a_RelY, a_RelZ); + a_Client->SendBlockChange(wp.x, wp.y, wp.z, GetBlock(index), GetMeta(index)); + + // FS #268 - if a BlockEntity digging is cancelled by a plugin, the entire block entity must be re-sent to the client: + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), end = m_BlockEntities.end(); itr != end; ++itr) + { + if (((*itr)->GetPosX() == wp.x) && ((*itr)->GetPosY() == wp.y) && ((*itr)->GetPosZ() == wp.z)) + { + (*itr)->SendTo(*a_Client); + } + } // for itr - m_BlockEntities +} + + + + + +void cChunk::AddBlockEntity(cBlockEntity * a_BlockEntity) +{ + MarkDirty(); + m_BlockEntities.push_back(a_BlockEntity); +} + + + + + +cBlockEntity * cChunk::GetBlockEntity(int a_BlockX, int a_BlockY, int a_BlockZ) +{ + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + if ( + ((*itr)->GetPosX() == a_BlockX) && + ((*itr)->GetPosY() == a_BlockY) && + ((*itr)->GetPosZ() == a_BlockZ) + ) + { + return *itr; + } + } // for itr - m_BlockEntities[] + + return NULL; +} + + + + + +void cChunk::UseBlockEntity(cPlayer * a_Player, int a_X, int a_Y, int a_Z) +{ + cBlockEntity * be = GetBlockEntity(a_X, a_Y, a_Z); + if (be != NULL) + { + be->UsedBy(a_Player); + } +} + + + + + +void cChunk::CollectPickupsByPlayer(cPlayer * a_Player) +{ + double PosX = a_Player->GetPosX(); + double PosY = a_Player->GetPosY(); + double PosZ = a_Player->GetPosZ(); + + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr) + { + if ((!(*itr)->IsPickup()) && (!(*itr)->IsProjectile())) + { + continue; // Only pickups and projectiles + } + float DiffX = (float)((*itr)->GetPosX() - PosX ); + float DiffY = (float)((*itr)->GetPosY() - PosY ); + float DiffZ = (float)((*itr)->GetPosZ() - PosZ ); + float SqrDist = DiffX * DiffX + DiffY * DiffY + DiffZ * DiffZ; + if (SqrDist < 1.5f * 1.5f) // 1.5 block + { + /* + LOG("Pickup %d being collected by player \"%s\", distance %f", + (*itr)->GetUniqueID(), a_Player->GetName().c_str(), SqrDist + ); + */ + MarkDirty(); + if ((*itr)->IsPickup()) + { + (reinterpret_cast<cPickup *>(*itr))->CollectedBy(a_Player); + } + else + { + (reinterpret_cast<cProjectileEntity *>(*itr))->CollectedBy(a_Player); + } + } + else if (SqrDist < 5 * 5) + { + /* + LOG("Pickup %d close to player \"%s\", but still too far to collect: %f", + (*itr)->GetUniqueID(), a_Player->GetName().c_str(), SqrDist + ); + */ + } + } +} + + + + + +bool cChunk::SetSignLines(int a_PosX, int a_PosY, int a_PosZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) +{ + // Also sends update packets to all clients in the chunk + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + if ( + ((*itr)->GetPosX() == a_PosX) && + ((*itr)->GetPosY() == a_PosY) && + ((*itr)->GetPosZ() == a_PosZ) && + ( + ((*itr)->GetBlockType() == E_BLOCK_WALLSIGN) || + ((*itr)->GetBlockType() == E_BLOCK_SIGN_POST) + ) + ) + { + MarkDirty(); + (reinterpret_cast<cSignEntity *>(*itr))->SetLines(a_Line1, a_Line2, a_Line3, a_Line4); + m_World->BroadcastBlockEntity(a_PosX, a_PosY, a_PosZ); + return true; + } + } // for itr - m_BlockEntities[] + return false; +} + + + + + +void cChunk::RemoveBlockEntity( cBlockEntity* a_BlockEntity ) +{ + MarkDirty(); + m_BlockEntities.remove(a_BlockEntity); +} + + + + + +bool cChunk::AddClient(cClientHandle* a_Client) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr) + { + if (a_Client == *itr) + { + // Already there, nothing needed + return false; + } + } + m_LoadedByClient.push_back( a_Client ); + + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr ) + { + LOGD("cChunk: Entity #%d (%s) at [%i, %i, %i] spawning for player \"%s\"", (*itr)->GetUniqueID(), (*itr)->GetClass(), m_PosX, m_PosY, m_PosZ, a_Client->GetUsername().c_str()); + (*itr)->SpawnOn(*a_Client); + } + return true; +} + + + + + +void cChunk::RemoveClient( cClientHandle* a_Client ) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr) + { + if (*itr != a_Client) + { + continue; + } + + m_LoadedByClient.erase(itr); + + if (!a_Client->IsDestroyed()) + { + for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr ) + { + LOGD("chunk [%i, %i] destroying entity #%i for player \"%s\"", m_PosX, m_PosZ, (*itr)->GetUniqueID(), a_Client->GetUsername().c_str() ); + a_Client->SendDestroyEntity(*(*itr)); + } + } + return; + } // for itr - m_LoadedByClient[] +} + + + + + +bool cChunk::HasClient( cClientHandle* a_Client ) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr) + { + if ((*itr) == a_Client) + { + return true; + } + } + return false; +} + + + + + +bool cChunk::HasAnyClients(void) +{ + return !m_LoadedByClient.empty(); +} + + + + + +void cChunk::AddEntity(cEntity * a_Entity) +{ + if (!a_Entity->IsPlayer()) + { + MarkDirty(); + } + + ASSERT(std::find(m_Entities.begin(), m_Entities.end(), a_Entity) == m_Entities.end()); // Not there already + + m_Entities.push_back(a_Entity); +} + + + + + +void cChunk::RemoveEntity(cEntity * a_Entity) +{ + size_t SizeBefore = m_Entities.size(); + m_Entities.remove(a_Entity); + size_t SizeAfter = m_Entities.size(); + + if (SizeBefore != SizeAfter) + { + // Mark as dirty if it was a server-generated entity: + if (!a_Entity->IsPlayer()) + { + MarkDirty(); + } + } +} + + + + + +bool cChunk::HasEntity(int a_EntityID) +{ + for (cEntityList::const_iterator itr = m_Entities.begin(), end = m_Entities.end(); itr != end; ++itr) + { + if ((*itr)->GetUniqueID() == a_EntityID) + { + return true; + } + } // for itr - m_Entities[] + return false; +} + + + + + +bool cChunk::ForEachEntity(cEntityCallback & a_Callback) +{ + // The entity list is locked by the parent chunkmap's CS + for (cEntityList::iterator itr = m_Entities.begin(), itr2 = itr; itr != m_Entities.end(); itr = itr2) + { + ++itr2; + if (a_Callback.Item(*itr)) + { + return false; + } + } // for itr - m_Entitites[] + return true; +} + + + + + +bool cChunk::DoWithEntityByID(int a_EntityID, cEntityCallback & a_Callback, bool & a_CallbackResult) +{ + // The entity list is locked by the parent chunkmap's CS + for (cEntityList::iterator itr = m_Entities.begin(), end = m_Entities.end(); itr != end; ++itr) + { + if ((*itr)->GetUniqueID() == a_EntityID) + { + a_CallbackResult = a_Callback.Item(*itr); + return true; + } + } // for itr - m_Entitites[] + return false; +} + + + + + +bool cChunk::ForEachBlockEntity(cBlockEntityCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (a_Callback.Item(*itr)) + { + return false; + } + } // for itr - m_BlockEntitites[] + return true; +} + + + + + +bool cChunk::ForEachChest(cChestCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if ((*itr)->GetBlockType() != E_BLOCK_CHEST) + { + continue; + } + if (a_Callback.Item((cChestEntity *)*itr)) + { + return false; + } + } // for itr - m_BlockEntitites[] + return true; +} + + + + + +bool cChunk::ForEachDispenser(cDispenserCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if ((*itr)->GetBlockType() != E_BLOCK_DISPENSER) + { + continue; + } + if (a_Callback.Item((cDispenserEntity *)*itr)) + { + return false; + } + } // for itr - m_BlockEntitites[] + return true; +} + + + + + +bool cChunk::ForEachDropper(cDropperCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if ((*itr)->GetBlockType() != E_BLOCK_DROPPER) + { + continue; + } + if (a_Callback.Item((cDropperEntity *)*itr)) + { + return false; + } + } // for itr - m_BlockEntitites[] + return true; +} + + + + + +bool cChunk::ForEachDropSpenser(cDropSpenserCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetBlockType() != E_BLOCK_DISPENSER) && ((*itr)->GetBlockType() != E_BLOCK_DROPPER)) + { + continue; + } + if (a_Callback.Item((cDropSpenserEntity *)*itr)) + { + return false; + } + } // for itr - m_BlockEntitites[] + return true; +} + + + + + +bool cChunk::ForEachFurnace(cFurnaceCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + switch ((*itr)->GetBlockType()) + { + case E_BLOCK_FURNACE: + case E_BLOCK_LIT_FURNACE: + { + break; + } + default: + { + continue; + } + } + if (a_Callback.Item((cFurnaceEntity *)*itr)) + { + return false; + } + } // for itr - m_BlockEntitites[] + return true; +} + + + + + +bool cChunk::DoWithBlockEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ, cBlockEntityCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + + if (a_Callback.Item(*itr)) + { + return false; + } + return true; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +bool cChunk::DoWithChestAt(int a_BlockX, int a_BlockY, int a_BlockZ, cChestCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + if ((*itr)->GetBlockType() != E_BLOCK_CHEST) + { + // There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out + return false; + } + + // The correct block entity is here + if (a_Callback.Item((cChestEntity *)*itr)) + { + return false; + } + return true; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +bool cChunk::DoWithDispenserAt(int a_BlockX, int a_BlockY, int a_BlockZ, cDispenserCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + if ((*itr)->GetBlockType() != E_BLOCK_DISPENSER) + { + // There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out + return false; + } + + // The correct block entity is here + if (a_Callback.Item((cDispenserEntity *)*itr)) + { + return false; + } + return true; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +bool cChunk::DoWithDropperAt(int a_BlockX, int a_BlockY, int a_BlockZ, cDropperCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + if ((*itr)->GetBlockType() != E_BLOCK_DROPPER) + { + // There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out + return false; + } + + // The correct block entity is here + if (a_Callback.Item((cDropperEntity *)*itr)) + { + return false; + } + return true; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +bool cChunk::DoWithDropSpenserAt(int a_BlockX, int a_BlockY, int a_BlockZ, cDropSpenserCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + if (((*itr)->GetBlockType() != E_BLOCK_DISPENSER) && ((*itr)->GetBlockType() != E_BLOCK_DROPPER)) + { + // There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out + return false; + } + + // The correct block entity is here + if (a_Callback.Item((cDropSpenserEntity *)*itr)) + { + return false; + } + return true; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +bool cChunk::DoWithFurnaceAt(int a_BlockX, int a_BlockY, int a_BlockZ, cFurnaceCallback & a_Callback) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), itr2 = itr; itr != m_BlockEntities.end(); itr = itr2) + { + ++itr2; + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + switch ((*itr)->GetBlockType()) + { + case E_BLOCK_FURNACE: + case E_BLOCK_LIT_FURNACE: + { + break; + } + default: + { + // There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out + return false; + } + } // switch (BlockType) + + // The correct block entity is here, + if (a_Callback.Item((cFurnaceEntity *)*itr)) + { + return false; + } + return true; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +bool cChunk::GetSignLines(int a_BlockX, int a_BlockY, int a_BlockZ, AString & a_Line1, AString & a_Line2, AString & a_Line3, AString & a_Line4) +{ + // The blockentity list is locked by the parent chunkmap's CS + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + if (((*itr)->GetPosX() != a_BlockX) || ((*itr)->GetPosY() != a_BlockY) || ((*itr)->GetPosZ() != a_BlockZ)) + { + continue; + } + switch ((*itr)->GetBlockType()) + { + case E_BLOCK_WALLSIGN: + case E_BLOCK_SIGN_POST: + { + a_Line1 = ((cSignEntity *)*itr)->GetLine(0); + a_Line2 = ((cSignEntity *)*itr)->GetLine(1); + a_Line3 = ((cSignEntity *)*itr)->GetLine(2); + a_Line4 = ((cSignEntity *)*itr)->GetLine(3); + return true; + } + } // switch (BlockType) + + // There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out + return false; + } // for itr - m_BlockEntitites[] + + // Not found: + return false; +} + + + + + +BLOCKTYPE cChunk::GetBlock(int a_RelX, int a_RelY, int a_RelZ) const +{ + if ( + (a_RelX < 0) || (a_RelX >= Width) || + (a_RelY < 0) || (a_RelY >= Height) || + (a_RelZ < 0) || (a_RelZ >= Width) + ) + { + ASSERT(!"GetBlock(x, y, z) out of bounds!"); + return 0; // Clip + } + + return m_BlockTypes[MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ)]; +} + + + + + +BLOCKTYPE cChunk::GetBlock(int a_BlockIdx) const +{ + if ((a_BlockIdx < 0) || (a_BlockIdx >= NumBlocks)) + { + ASSERT(!"GetBlock(idx) out of bounds!"); + return 0; + } + + return m_BlockTypes[ a_BlockIdx ]; +} + + + + + +void cChunk::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) +{ + int Idx = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); + a_BlockType = cChunkDef::GetBlock (m_BlockTypes, a_RelX, a_RelY, a_RelZ); + a_BlockMeta = cChunkDef::GetNibble(m_BlockMeta, a_RelX, a_RelY, a_RelZ); +} + + + + + +void cChunk::GetBlockInfo(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight) +{ + int Idx = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); + a_BlockType = cChunkDef::GetBlock (m_BlockTypes, Idx); + a_Meta = cChunkDef::GetNibble(m_BlockMeta, Idx); + a_SkyLight = cChunkDef::GetNibble(m_BlockSkyLight, Idx); + a_BlockLight = cChunkDef::GetNibble(m_BlockLight, Idx); +} + + + + + +cChunk * cChunk::GetNeighborChunk(int a_BlockX, int a_BlockZ) +{ + // Convert coords to relative, then call the relative version: + a_BlockX -= m_PosX * cChunkDef::Width; + a_BlockZ -= m_PosZ * cChunkDef::Width; + return GetRelNeighborChunk(a_BlockX, a_BlockZ); +} + + + + + +cChunk * cChunk::GetRelNeighborChunk(int a_RelX, int a_RelZ) +{ + bool ReturnThis = true; + if (a_RelX < 0) + { + if (m_NeighborXM != NULL) + { + cChunk * Candidate = m_NeighborXM->GetRelNeighborChunk(a_RelX + cChunkDef::Width, a_RelZ); + if (Candidate != NULL) + { + return Candidate; + } + } + // Going X first failed, but if the request is crossing Z as well, let's try the Z first later on. + ReturnThis = false; + } + else if (a_RelX >= cChunkDef::Width) + { + if (m_NeighborXP != NULL) + { + cChunk * Candidate = m_NeighborXP->GetRelNeighborChunk(a_RelX - cChunkDef::Width, a_RelZ); + if (Candidate != NULL) + { + return Candidate; + } + } + // Going X first failed, but if the request is crossing Z as well, let's try the Z first later on. + ReturnThis = false; + } + + if (a_RelZ < 0) + { + if (m_NeighborZM != NULL) + { + return m_NeighborZM->GetRelNeighborChunk(a_RelX, a_RelZ + cChunkDef::Width); + // For requests crossing both X and Z, the X-first way has been already tried + } + return NULL; + } + else if (a_RelZ >= cChunkDef::Width) + { + if (m_NeighborZP != NULL) + { + return m_NeighborZP->GetRelNeighborChunk(a_RelX, a_RelZ - cChunkDef::Width); + // For requests crossing both X and Z, the X-first way has been already tried + } + return NULL; + } + + return (ReturnThis ? this : NULL); +} + + + + + +cChunk * cChunk::GetRelNeighborChunkAdjustCoords(int & a_RelX, int & a_RelZ) const +{ + cChunk * ToReturn = const_cast<cChunk *>(this); + + // The most common case: inside this chunk: + if ( + (a_RelX >= 0) && (a_RelX < Width) && + (a_RelZ >= 0) && (a_RelZ < Width) + ) + { + return ToReturn; + } + + // Request for a different chunk, calculate chunk offset: + int RelX = a_RelX; // Make a local copy of the coords (faster access) + int RelZ = a_RelZ; + while ((RelX >= Width) && (ToReturn != NULL)) + { + RelX -= Width; + ToReturn = ToReturn->m_NeighborXP; + } + while ((RelX < 0) && (ToReturn != NULL)) + { + RelX += Width; + ToReturn = ToReturn->m_NeighborXM; + } + while ((RelZ >= Width) && (ToReturn != NULL)) + { + RelZ -= Width; + ToReturn = ToReturn->m_NeighborZP; + } + while ((RelZ < 0) && (ToReturn != NULL)) + { + RelZ += Width; + ToReturn = ToReturn->m_NeighborZM; + } + if (ToReturn != NULL) + { + a_RelX = RelX; + a_RelZ = RelZ; + return ToReturn; + } + + // The chunk cannot be walked through neighbors, find it through the chunkmap: + int AbsX = a_RelX + m_PosX * Width; + int AbsZ = a_RelZ + m_PosZ * Width; + int DstChunkX, DstChunkZ; + BlockToChunk(AbsX, AbsZ, DstChunkX, DstChunkZ); + ToReturn = m_ChunkMap->FindChunk(DstChunkX, DstChunkZ); + a_RelX = AbsX - DstChunkX * Width; + a_RelZ = AbsZ - DstChunkZ * Width; + return ToReturn; +} + + + + + +void cChunk::BroadcastAttachEntity(const cEntity & a_Entity, const cEntity * a_Vehicle) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + (*itr)->SendAttachEntity(a_Entity, a_Vehicle); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendBlockAction(a_BlockX, a_BlockY, a_BlockZ, a_Byte1, a_Byte2, a_BlockType); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastBlockBreakAnimation(int a_entityID, int a_blockX, int a_blockY, int a_blockZ, char a_stage, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendBlockBreakAnim(a_entityID, a_blockX, a_blockY, a_blockZ, a_stage); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastBlockEntity(int a_BlockX, int a_BlockY, int a_BlockZ, const cClientHandle * a_Exclude) +{ + // We can operate on entity pointers, we're inside the ChunkMap's CS lock which guards the list + cBlockEntity * Entity = GetBlockEntity(a_BlockX, a_BlockY, a_BlockZ); + if (Entity == NULL) + { + return; + } + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + Entity->SendTo(*(*itr)); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastChunkData(cChunkDataSerializer & a_Serializer, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendChunkData(m_PosX, m_PosZ, a_Serializer); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastCollectPickup(const cPickup & a_Pickup, const cPlayer & a_Player, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendCollectPickup(a_Pickup, a_Player); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastDestroyEntity(const cEntity & a_Entity, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendDestroyEntity(a_Entity); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityEquipment(a_Entity, a_SlotNum, a_Item); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityHeadLook(const cEntity & a_Entity, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityHeadLook(a_Entity); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityLook(const cEntity & a_Entity, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityLook(a_Entity); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityMetadata(const cEntity & a_Entity, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityMetadata(a_Entity); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityRelMove(a_Entity, a_RelX, a_RelY, a_RelZ); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityRelMoveLook(a_Entity, a_RelX, a_RelY, a_RelZ); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityStatus(const cEntity & a_Entity, char a_Status, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityStatus(a_Entity, a_Status); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityVelocity(const cEntity & a_Entity, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityVelocity(a_Entity); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastEntityAnimation(const cEntity & a_Entity, char a_Animation, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendEntityAnimation(a_Entity, a_Animation); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendSoundParticleEffect(a_EffectID, a_SrcX, a_SrcY, a_SrcZ, a_Data); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastSpawnEntity(cEntity & a_Entity, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + a_Entity.SpawnOn(*(*itr)); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ, const cClientHandle * a_Exclude) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->SendThunderbolt(a_BlockX, a_BlockY, a_BlockZ); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::BroadcastUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) +{ + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + (*itr)->SendUseBed(a_Entity, a_BlockX, a_BlockY, a_BlockZ); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::SendBlockEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cClientHandle & a_Client) +{ + cBlockEntity * Entity = GetBlockEntity(a_BlockX, a_BlockY, a_BlockZ); + if (Entity == NULL) + { + return; + } + Entity->SendTo(a_Client); +} + + + + + +void cChunk::PositionToWorldPosition(int a_RelX, int a_RelY, int a_RelZ, int & a_BlockX, int & a_BlockY, int & a_BlockZ) +{ + a_BlockY = a_RelY; + a_BlockX = m_PosX * Width + a_RelX; + a_BlockZ = m_PosZ * Width + a_RelZ; +} + + + + + +Vector3i cChunk::PositionToWorldPosition(int a_RelX, int a_RelY, int a_RelZ) +{ + return Vector3i(m_PosX * Width + a_RelX, m_PosY * Height + a_RelY, m_PosZ * Width + a_RelZ); +} + + + + + +NIBBLETYPE cChunk::GetTimeAlteredLight(NIBBLETYPE a_Skylight) const +{ + a_Skylight -= m_World->GetSkyDarkness(); + // Because NIBBLETYPE is unsigned, we clamp it to 0 .. 15 by checking for values above 15 + return (a_Skylight < 16)? a_Skylight : 0; +} + + + + + +#if !C_CHUNK_USE_INLINE +# include "cChunk.inl.h" +#endif + + + + |