From 92c59963f82f81aa3202657e7fdbb2592924ede3 Mon Sep 17 00:00:00 2001 From: "cedeel@gmail.com" Date: Thu, 14 Jun 2012 13:06:06 +0000 Subject: Attempt to bring sanity to newlines across systems. git-svn-id: http://mc-server.googlecode.com/svn/trunk@606 0a769ca7-a7f5-676a-18bf-c427514a06d6 --- source/cChunk.cpp | 3286 ++++++++++++++++++++++++++--------------------------- 1 file changed, 1643 insertions(+), 1643 deletions(-) (limited to 'source/cChunk.cpp') diff --git a/source/cChunk.cpp b/source/cChunk.cpp index 5d5a1d972..98415b572 100644 --- a/source/cChunk.cpp +++ b/source/cChunk.cpp @@ -1,1643 +1,1643 @@ - -#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules - -#ifndef _WIN32 - #include -#endif - - -#include "cChunk.h" -#include "cWorld.h" -#include "cWaterSimulator.h" -#include "cLavaSimulator.h" -#include "cClientHandle.h" -#include "cServer.h" -#include "zlib.h" -#include "Defines.h" -#include "cChestEntity.h" -#include "cFurnaceEntity.h" -#include "cSignEntity.h" -#include "cTorch.h" -#include "cLadder.h" -#include "cPickup.h" -#include "cRedstone.h" -#include "cItem.h" -#include "cNoise.h" -#include "cRoot.h" -#include "cBlockToPickup.h" -#include "MersenneTwister.h" -#include "cPlayer.h" - -#include "packets/cPacket_DestroyEntity.h" -#include "packets/cPacket_PreChunk.h" -#include "packets/cPacket_BlockChange.h" -#include "packets/cPacket_MultiBlock.h" - -#include - - - - - -extern bool g_bWaterPhysics; - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// 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) - : 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) -{ - // LOGINFO("### new cChunk (%i, %i) at %p, thread 0x%x ###", a_X, a_Z, this, GetCurrentThreadId()); -} - - - - - -cChunk::~cChunk() -{ - // 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; - for (cEntityList::const_iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr) - { - if ((*itr)->GetEntityType() != cEntity::eEntityType_Player) - { - Entities.push_back(*itr); - } - } - for (cEntityList::iterator itr = Entities.begin(); itr != Entities.end(); ++itr) - { - (*itr)->RemoveFromChunk(); - (*itr)->Destroy(); - } - m_Entities.clear(); -} - - - - - -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, - cEntityList & a_Entities, - 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(); - } - - // Append entities to current entity list: - m_Entities.splice(m_Entities.end(), a_Entities); - - // 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); - - // Create block entities that the loader didn't load; fill them with defaults - CreateBlockEntities(); - - 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::GetBlockData(BLOCKTYPE * a_BlockData) -{ - memcpy(a_BlockData, m_BlockTypes, NumBlocks); - memcpy(a_BlockData + MetaOffset, m_BlockMeta, NumBlocks / 2); - memcpy(a_BlockData + LightOffset, m_BlockLight, NumBlocks / 2); - memcpy(a_BlockData + SkyLightOffset, m_BlockSkyLight, NumBlocks / 2); -} - - - - - -/// 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::Tick(float a_Dt, MTRand & a_TickRandom) -{ - cCSLock Lock(m_CSBlockLists); - unsigned int PendingSendBlocks = m_PendingSendBlocks.size(); - if( PendingSendBlocks > 1 ) - { - cPacket_MultiBlock MultiBlock; - MultiBlock.m_ChunkX = m_PosX; - MultiBlock.m_ChunkZ = m_PosZ; - MultiBlock.m_NumBlocks = (short)PendingSendBlocks; - MultiBlock.m_Data = new cPacket_MultiBlock::sBlockChange[ PendingSendBlocks ]; - MultiBlock.m_DataSize = PendingSendBlocks * sizeof( cPacket_MultiBlock::sBlockChange ); - //LOG("Sending multiblock packet for %i blocks", PendingSendBlocks ); - for( unsigned int i = 0; i < PendingSendBlocks; i++) - { - unsigned int index = m_PendingSendBlocks[i]; - Vector3i BlockPos = IndexToCoordinate( index ); - - unsigned int Coords = BlockPos.y | (BlockPos.z << 8) | (BlockPos.x << 12); - unsigned int Blocks = GetNibble( m_BlockMeta, index ) | (m_BlockTypes[index] << 4); - MultiBlock.m_Data[i].Data = Coords << 16 | Blocks; - } - m_PendingSendBlocks.clear(); - PendingSendBlocks = m_PendingSendBlocks.size(); - Broadcast( MultiBlock ); - } - if( PendingSendBlocks > 0 ) - { - for( unsigned int i = 0; i < PendingSendBlocks; i++) - { - unsigned int index = m_PendingSendBlocks[i]; - Vector3i WorldPos = PositionToWorldPosition( IndexToCoordinate( index ) ); - - cPacket_BlockChange BlockChange; - BlockChange.m_PosX = WorldPos.x; - BlockChange.m_PosY = (unsigned char)WorldPos.y; - BlockChange.m_PosZ = WorldPos.z; - BlockChange.m_BlockType = m_BlockTypes[index]; - BlockChange.m_BlockMeta = GetNibble( m_BlockMeta, index ); - Broadcast( BlockChange ); - } - m_PendingSendBlocks.clear(); - } - Lock.Unlock(); - - while ( !m_UnloadQuery.empty() ) - { - cPacket_PreChunk UnloadPacket; - UnloadPacket.m_PosX = GetPosX(); - UnloadPacket.m_PosZ = GetPosZ(); - UnloadPacket.m_bLoad = false; // Unload - (*m_UnloadQuery.begin())->Send( UnloadPacket ); - m_UnloadQuery.remove( *m_UnloadQuery.begin() ); - } - - CheckBlocks(); - - TickBlocks(a_TickRandom); - - // Tick block entities (furnaces) - for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) - { - if ((*itr)->GetBlockType() == E_BLOCK_FURNACE) - { - m_IsDirty = ((cFurnaceEntity *)(*itr))->Tick( a_Dt ) | m_IsDirty; - } - } -} - - - - - -void cChunk::CheckBlocks(void) -{ - cCSLock Lock2(m_CSBlockLists); - unsigned int NumTickBlocks = m_ToTickBlocks.size(); - Lock2.Unlock(); - - if (NumTickBlocks == 0) - { - return; - } - - Lock2.Lock(); - std::deque< unsigned int > ToTickBlocks = m_ToTickBlocks; - m_ToTickBlocks.clear(); - Lock2.Unlock(); - - for (std::deque< unsigned int >::const_iterator itr = ToTickBlocks.begin(); itr != ToTickBlocks.end(); ++itr) - { - unsigned int index = (*itr); - Vector3i BlockPos = IndexToCoordinate(index); - - BLOCKTYPE BlockType = GetBlock(index); - NIBBLETYPE BlockMeta = GetMeta (index); - switch (BlockType) - { - // Stuff that drops when block below is destroyed: - case E_BLOCK_REDSTONE_REPEATER_OFF: - case E_BLOCK_REDSTONE_REPEATER_ON: - case E_BLOCK_REDSTONE_WIRE: - case E_BLOCK_CACTUS: - case E_BLOCK_REEDS: - case E_BLOCK_WOODEN_PRESSURE_PLATE: - case E_BLOCK_STONE_PRESSURE_PLATE: - case E_BLOCK_MINECART_TRACKS: - case E_BLOCK_SIGN_POST: - case E_BLOCK_CROPS: - case E_BLOCK_SAPLING: - case E_BLOCK_YELLOW_FLOWER: - case E_BLOCK_RED_ROSE: - case E_BLOCK_RED_MUSHROOM: - case E_BLOCK_BROWN_MUSHROOM: - case E_BLOCK_SNOW: - { - if (GetBlock(BlockPos.x, BlockPos.y - 1, BlockPos.z) == E_BLOCK_AIR) - { - SetBlock( BlockPos, E_BLOCK_AIR, 0 ); - - Vector3i WorldPos = PositionToWorldPosition( BlockPos ); - - m_World->GetSimulatorManager()->WakeUp(WorldPos.x, WorldPos.y, WorldPos.z); - - cItems Pickups; - cBlockToPickup::ToPickup(BlockType, BlockMeta, E_ITEM_EMPTY, Pickups); - m_World->SpawnItemPickups(Pickups, WorldPos.x, WorldPos.y, WorldPos.z); - } - break; - } - - case E_BLOCK_REDSTONE_TORCH_OFF: - case E_BLOCK_REDSTONE_TORCH_ON: - case E_BLOCK_TORCH: - { - char Dir = cTorch::MetaDataToDirection( GetNibble( m_BlockMeta, BlockPos ) ); - Vector3i WorldPos = PositionToWorldPosition( BlockPos ); - - Vector3i AttachedTo = WorldPos; - AddDirection( AttachedTo.x, AttachedTo.y, AttachedTo.z, Dir, true ); - if( m_World->GetBlock( AttachedTo ) == E_BLOCK_AIR ) - { - SetBlock( BlockPos, E_BLOCK_AIR, 0 ); - - m_World->GetSimulatorManager()->WakeUp(WorldPos.x, WorldPos.y, WorldPos.z); - - cItems Pickups; - cBlockToPickup::ToPickup(BlockType, BlockMeta, E_ITEM_EMPTY, Pickups); - m_World->SpawnItemPickups(Pickups, WorldPos.x, WorldPos.y, WorldPos.z); - } - break; - } - - case E_BLOCK_LADDER: - { - char Dir = cLadder::MetaDataToDirection( GetNibble( m_BlockMeta, BlockPos ) ); - Vector3i WorldPos = PositionToWorldPosition( BlockPos ); - Vector3i AttachedTo = WorldPos; - AddDirection( AttachedTo.x, AttachedTo.y, AttachedTo.z, Dir, true ); - if( m_World->GetBlock( AttachedTo ) == E_BLOCK_AIR ) - { - SetBlock( BlockPos, E_BLOCK_AIR, 0 ); - cItems Pickups; - cBlockToPickup::ToPickup(BlockType, BlockMeta, E_ITEM_EMPTY, Pickups); - m_World->SpawnItemPickups(Pickups, WorldPos.x, WorldPos.y, WorldPos.z); - } - break; - } - } // switch (BlockType) - } // for itr - ToTickBlocks[] -} - - - - - -void cChunk::TickBlocks(MTRand & a_TickRandom) -{ - // 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 = a_TickRandom.randInt(0x00ffffff); - int RandomY = a_TickRandom.randInt(0x00ffffff); - int RandomZ = a_TickRandom.randInt(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 ); - BLOCKTYPE ID = m_BlockTypes[Index]; - switch( ID ) - { - case E_BLOCK_CROPS: - { - NIBBLETYPE Meta = GetMeta(Index); - if (Meta < 7) - { - FastSetBlock(m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_CROPS, ++Meta); - } - break; - } - - case E_BLOCK_GRASS: TickGrass (m_BlockTickX, m_BlockTickY, m_BlockTickZ, a_TickRandom); break; - case E_BLOCK_PUMPKIN_STEM: - case E_BLOCK_MELON_STEM: TickMelonPumpkin(m_BlockTickX, m_BlockTickY, m_BlockTickZ, Index, ID, a_TickRandom); break; - case E_BLOCK_FARMLAND: TickFarmland (m_BlockTickX, m_BlockTickY, m_BlockTickZ); break; - case E_BLOCK_SUGARCANE: GrowSugarcane (m_BlockTickX, m_BlockTickY, m_BlockTickZ, 1); break; - case E_BLOCK_CACTUS: GrowCactus (m_BlockTickX, m_BlockTickY, m_BlockTickZ, 1); break; - - case E_BLOCK_SAPLING: - { - // Check the highest bit, if set, grow the tree, if not, set it (1-bit delay): - NIBBLETYPE Meta = GetMeta(m_BlockTickX, m_BlockTickY, m_BlockTickZ); - if ((Meta & 0x08) != 0) - { - m_World->GrowTree( m_BlockTickX + m_PosX*Width, m_BlockTickY, m_BlockTickZ + m_PosZ*Width ); - } - else - { - SetMeta(m_BlockTickX, m_BlockTickY, m_BlockTickZ, Meta | 0x08); - } - break; - } - - case E_BLOCK_LEAVES: //todo, http://www.minecraftwiki.net/wiki/Data_values#Leaves - { - break; - } - - default: - { - break; - } - } - } -} - - - - - -void cChunk::TickGrass(int a_RelX, int a_RelY, int a_RelZ, MTRand & a_TickRandom) -{ - // Grass turns into dirt if there's another block on top of it: - { - BLOCKTYPE AboveBlock = cChunkDef::GetBlock(m_BlockTypes, a_RelX, a_RelY + 1, a_RelZ); - if (!((g_BlockOneHitDig[AboveBlock]) || (g_BlockTransparent[AboveBlock]))) - { - FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0); - return; - } - } - - // Grass spreads to nearby blocks if there's enough light (TODO) and free space above that block - // Ref.: http://www.minecraftwiki.net/wiki/Grass_Block#Growth - for (int i = 0; i < 2; i++) // Pick two blocks to grow to - { - int OfsX = a_TickRandom.randInt(2) - 1; // [-1 .. 1] - int OfsY = a_TickRandom.randInt(4) - 3; // [-3 .. 1] - int OfsZ = a_TickRandom.randInt(2) - 1; // [-1 .. 1] - - BLOCKTYPE DestBlock; - NIBBLETYPE DestMeta; - if ( - !UnboundedRelGetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, DestBlock, DestMeta) || - (DestBlock != E_BLOCK_DIRT) - ) - { - continue; - } - - BLOCKTYPE AboveDest; - NIBBLETYPE AboveMeta; - if ( - UnboundedRelGetBlock(a_RelX + OfsX, a_RelY + OfsY + 1, a_RelZ + OfsZ, AboveDest, AboveMeta) && - ((g_BlockOneHitDig[AboveDest]) || (g_BlockTransparent[AboveDest])) - // TODO: Query dest light, if it's enough - ) - { - UnboundedRelFastSetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, E_BLOCK_GRASS, 0); - } - } // for i - repeat twice -} - - - - - -void cChunk::TickMelonPumpkin(int a_RelX, int a_RelY, int a_RelZ, int a_BlockIdx, BLOCKTYPE a_BlockType, MTRand & a_TickRandom) -{ - NIBBLETYPE Meta = GetMeta(a_BlockIdx); - if (Meta < 7) - { - FastSetBlock(m_BlockTickX, m_BlockTickY, m_BlockTickZ, a_BlockType, ++Meta); - return; - } - GrowMelonPumpkin(a_RelX, a_RelY, a_RelZ, a_BlockType, a_TickRandom); -} - - - - - -void cChunk::TickFarmland(int a_RelX, int a_RelY, int a_RelZ) -{ - // TODO: Rain hydrates blocks, too. Check world weather, don't search for water if raining. - - // Search for water in a close proximity: - // Ref.: http://www.minecraftwiki.net/wiki/Farmland#Hydrated_Farmland_Tiles - bool Found = false; - for (int y = a_RelY; y <= a_RelY + 1; y++) - { - for (int z = a_RelZ - 4; z <= a_RelZ + 4; z++) - { - for (int x = a_RelX - 4; x <= a_RelX + 4; x++) - { - BLOCKTYPE BlockType; - NIBBLETYPE Meta; // unused - - if (!UnboundedRelGetBlock(x, y, z, BlockType, Meta)) - { - // Too close to an unloaded chunk, we might miss a water block there, so don't tick at all - return; - } - if ( - (BlockType == E_BLOCK_WATER) || - (BlockType == E_BLOCK_STATIONARY_WATER) - ) - { - Found = true; - break; - } - } // for x - if (Found) - { - break; - } - } // for z - if (Found) - { - break; - } - } // for y - - NIBBLETYPE BlockMeta = GetMeta(a_RelX, a_RelY, a_RelZ); - - if (Found) - { - // Water was found, hydrate the block until hydration reaches 7: - if (BlockMeta < 7) - { - FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_FARMLAND, ++BlockMeta); - } - return; - } - - // Water wasn't found, de-hydrate block: - if (BlockMeta > 0) - { - FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_FARMLAND, --BlockMeta); - return; - } - - // Farmland too dry. Turn back to dirt: - FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0); - - // TODO: Uproot whatever was growing on top: -} - - - - - -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: - { - // 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) -{ - if ((a_RelY < 0) || (a_RelY > cChunkDef::Height)) - { - return false; - } - - if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) - { - int BlockIdx = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); - a_BlockType = GetBlock(BlockIdx); - a_BlockMeta = GetMeta(BlockIdx); - return true; - } - return m_ChunkMap->LockedGetBlock( - m_PosX * cChunkDef::Width + a_RelX, - ZERO_CHUNK_Y * cChunkDef::Height + a_RelY, - m_PosZ * cChunkDef::Width + a_RelZ, - a_BlockType, a_BlockMeta - ); -} - - - - - -bool cChunk::UnboundedRelSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) -{ - if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) - { - SetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); - return true; - } - return m_ChunkMap->LockedSetBlock( - m_PosX * cChunkDef::Width + a_RelX, - ZERO_CHUNK_Y * cChunkDef::Height + a_RelY, - m_PosZ * cChunkDef::Width + a_RelZ, - a_BlockType, a_BlockMeta - ); -} - - - - - -bool cChunk::UnboundedRelFastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) -{ - if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) - { - FastSetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); - return true; - } - return m_ChunkMap->LockedFastSetBlock( - m_PosX * cChunkDef::Width + a_RelX, - ZERO_CHUNK_Y * cChunkDef::Height + a_RelY, - m_PosZ * cChunkDef::Width + a_RelZ, - a_BlockType, a_BlockMeta - ); -} - - - - - -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++) - { - ENUM_BLOCK_ID BlockType = (ENUM_BLOCK_ID)m_BlockTypes[ MakeIndex( x, y, z ) ]; - switch ( BlockType ) - { - case E_BLOCK_CHEST: - { - if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) - { - m_BlockEntities.push_back( new cChestEntity( x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width, m_World) ); - } - break; - } - - case E_BLOCK_FURNACE: - { - if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) - { - m_BlockEntities.push_back( new cFurnaceEntity( x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width, m_World) ); - } - break; - } - - case E_BLOCK_SIGN_POST: - case E_BLOCK_WALLSIGN: - { - if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) - { - m_BlockEntities.push_back( new cSignEntity( BlockType, 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::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 ) -{ - if (a_RelX < 0 || a_RelX >= Width || a_RelY < 0 || a_RelY >= Height || a_RelZ < 0 || a_RelZ >= Width) - { - return; // Clip - } - - ASSERT(IsValid()); // Is this chunk loaded / generated? - - int index = MakeIndexNoCheck( a_RelX, a_RelY, a_RelZ ); - BLOCKTYPE OldBlockMeta = GetNibble( m_BlockMeta, index ); - BLOCKTYPE OldBlockType = m_BlockTypes[index]; - m_BlockTypes[index] = a_BlockType; - - SetNibble( m_BlockMeta, index, a_BlockMeta ); - - if ((OldBlockType == a_BlockType) && (OldBlockMeta == a_BlockMeta)) - { - return; - } - - MarkDirty(); - - { - cCSLock Lock(m_CSBlockLists); - m_PendingSendBlocks.push_back( index ); - } - - // 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) - { - SetHeight(m_HeightMap, a_RelX, a_RelZ, a_RelY); - } - else - { - for (int y = a_RelY - 1; y > 0; --y) - { - if (cChunkDef::GetBlock(m_BlockTypes, a_RelX, y, a_RelZ) != E_BLOCK_AIR) - { - SetHeight(m_HeightMap, a_RelX, a_RelZ, y); - break; - } - } // for y - column in m_BlockData - } - } - - m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY, a_RelZ ) ); - m_ToTickBlocks.push_back( MakeIndex( a_RelX + 1, a_RelY, a_RelZ ) ); - m_ToTickBlocks.push_back( MakeIndex( a_RelX - 1, a_RelY, a_RelZ ) ); - m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY + 1, a_RelZ ) ); - m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY - 1, a_RelZ ) ); - m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY, a_RelZ + 1 ) ); - m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY, a_RelZ - 1 ) ); - - Vector3i WorldPos = PositionToWorldPosition( a_RelX, a_RelY, a_RelZ ); - cBlockEntity* BlockEntity = GetBlockEntity( WorldPos ); - if( BlockEntity ) - { - BlockEntity->Destroy(); - RemoveBlockEntity( BlockEntity ); - delete BlockEntity; - } - switch( a_BlockType ) - { - case E_BLOCK_CHEST: - { - AddBlockEntity( new cChestEntity( WorldPos.x, WorldPos.y, WorldPos.z, m_World) ); - break; - } - case E_BLOCK_FURNACE: - { - AddBlockEntity( new cFurnaceEntity( WorldPos.x, WorldPos.y, WorldPos.z, m_World) ); - break; - } - case E_BLOCK_SIGN_POST: - case E_BLOCK_WALLSIGN: - { - AddBlockEntity( new cSignEntity( (ENUM_BLOCK_ID)a_BlockType, WorldPos.x, WorldPos.y, WorldPos.z, m_World) ); - break; - } - } // switch (a_BlockType) -} - - - - - -void cChunk::FastSetBlock( int a_X, int a_Y, int a_Z, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta) -{ - ASSERT(!((a_X < 0 || a_X >= Width || a_Y < 0 || a_Y >= Height || a_Z < 0 || a_Z >= Width))); - - ASSERT(IsValid()); - - const int index = MakeIndexNoCheck( a_X, a_Y, a_Z ); - const BLOCKTYPE OldBlock = m_BlockTypes[index]; - const BLOCKTYPE OldBlockMeta = GetNibble( m_BlockMeta, index ); - if ((OldBlock == a_BlockType) && (OldBlockMeta == a_BlockMeta)) - { - return; - } - - MarkDirty(); - - m_BlockTypes[index] = a_BlockType; - - { - cCSLock Lock(m_CSBlockLists); - m_PendingSendBlocks.push_back( index ); - } - - SetNibble( m_BlockMeta, index, a_BlockMeta ); - - // ONLY recalculate lighting if it's necessary! - if( - (g_BlockLightValue[ OldBlock ] != g_BlockLightValue[ a_BlockType ]) || - (g_BlockSpreadLightFalloff[ OldBlock ] != g_BlockSpreadLightFalloff[ a_BlockType ]) || - (g_BlockTransparent[ OldBlock ] != g_BlockTransparent[ a_BlockType ] ) - ) - { - m_IsLightValid = false; - } - - // Update heightmap, if needed: - if (a_Y >= m_HeightMap[a_X + a_Z * Width]) - { - if (a_BlockType != E_BLOCK_AIR) - { - m_HeightMap[a_X + a_Z * Width] = (unsigned char)a_Y; - } - else - { - for (int y = a_Y - 1; y > 0; --y) - { - if (m_BlockTypes[MakeIndexNoCheck(a_X, y, a_Z)] != E_BLOCK_AIR) - { - m_HeightMap[a_X + a_Z * Width] = (unsigned char)y; - break; - } - } // for y - column in m_BlockData - } - } -} - - - - - -void cChunk::SendBlockTo( int a_X, int a_Y, int a_Z, cClientHandle* a_Client ) -{ - if( a_Client == 0 ) - { - cCSLock Lock(m_CSBlockLists); - unsigned int index = MakeIndex( a_X, a_Y, a_Z ); - if( index != INDEX_OUT_OF_RANGE ) - { - m_PendingSendBlocks.push_back( index ); - } - else - { - LOGWARN("cChunk::SendBlockTo Index out of range!"); - } - return; - } - - for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) - { - if ( *itr == a_Client ) - { - unsigned int index = MakeIndex( a_X, a_Y, a_Z ); - Vector3i WorldPos = PositionToWorldPosition( a_X, a_Y, a_Z ); - cPacket_BlockChange BlockChange; - BlockChange.m_PosX = WorldPos.x; - BlockChange.m_PosY = (unsigned char)WorldPos.y; - BlockChange.m_PosZ = WorldPos.z; - if( index != INDEX_OUT_OF_RANGE ) - { - BlockChange.m_BlockType = m_BlockTypes[ index ]; - BlockChange.m_BlockMeta = GetNibble( m_BlockMeta, index ); - } // else it's both 0 - a_Client->Send( BlockChange ); - break; - } - } -} - - - - - -void cChunk::AddBlockEntity( cBlockEntity* a_BlockEntity ) -{ - cCSLock Lock(m_CSBlockLists); - m_BlockEntities.push_back( a_BlockEntity ); -} - - - - - -cBlockEntity * cChunk::GetBlockEntity(int a_X, int a_Y, int a_Z) -{ - // Assumes that the m_CSBlockList is already locked, we're being called from SetBlock() - for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) - { - if ( - ((*itr)->GetPosX() == a_X) && - ((*itr)->GetPosY() == a_Y) && - ((*itr)->GetPosZ() == a_Z) - ) - { - 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)->GetEntityType() != cEntity::eEntityType_Pickup ) - { - continue; // Only pickups - } - 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 - { - MarkDirty(); - (reinterpret_cast(*itr))->CollectedBy( a_Player ); - } - } -} - - - - - -void cChunk::UpdateSign(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(*itr))->SetLines(a_Line1, a_Line2, a_Line3, a_Line4); - (*itr)->SendTo(NULL); - } - } // for itr - m_BlockEntities[] -} - - - - - -void cChunk::RemoveBlockEntity( cBlockEntity* a_BlockEntity ) -{ - cCSLock Lock(m_CSBlockLists); - 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() ); - cPacket_DestroyEntity DestroyEntity( *itr ); - a_Client->Send( DestroyEntity ); - } - } - 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->GetEntityType() != cEntity::eEntityType_Player) - { - MarkDirty(); - } - 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->GetEntityType() != cEntity::eEntityType_Player) - { - MarkDirty(); - } - } -} - - - - - -BLOCKTYPE cChunk::GetBlock( int a_X, int a_Y, int a_Z ) -{ - if ((a_X < 0) || (a_X >= Width) || (a_Y < 0) || (a_Y >= Height) || (a_Z < 0) || (a_Z >= Width)) return 0; // Clip - - return m_BlockTypes[ MakeIndexNoCheck( a_X, a_Y, a_Z ) ]; -} - - - - - -BLOCKTYPE cChunk::GetBlock( int a_BlockIdx ) -{ - if( a_BlockIdx < 0 || a_BlockIdx >= NumBlocks ) 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); -} - - - - - -/* -// _X 2012_02_23: Loading in old format not supported anymore -/// Loads the chunk from the old-format disk file, erases the file afterwards. Returns true if successful -bool cChunk::LoadFromDisk() -{ - AString SourceFile; - Printf(SourceFile, "world/X%i_Y%i_Z%i.bin", m_PosX, m_PosY, m_PosZ ); - - cFile f; - if (!f.Open(SourceFile, cFile::fmRead)) - { - return false; - } - - if (f.Read(m_BlockData, sizeof(m_BlockData)) != sizeof(m_BlockData)) - { - LOGERROR("ERROR READING FROM FILE %s", SourceFile.c_str()); - return false; - } - - // Now load Block Entities: - ENUM_BLOCK_ID BlockType; - while (f.Read(&BlockType, sizeof(ENUM_BLOCK_ID)) == sizeof(ENUM_BLOCK_ID)) - { - switch (BlockType) - { - case E_BLOCK_CHEST: - { - cChestEntity * ChestEntity = new cChestEntity( 0, 0, 0, m_World ); - if (!ChestEntity->LoadFromFile(f)) - { - LOGERROR("ERROR READING CHEST FROM FILE %s", SourceFile.c_str()); - delete ChestEntity; - return false; - } - m_BlockEntities.push_back( ChestEntity ); - break; - } - - case E_BLOCK_FURNACE: - { - cFurnaceEntity* FurnaceEntity = new cFurnaceEntity( 0, 0, 0, m_World ); - if (!FurnaceEntity->LoadFromFile(f)) - { - LOGERROR("ERROR READING FURNACE FROM FILE %s", SourceFile.c_str()); - delete FurnaceEntity; - return false; - } - m_BlockEntities.push_back( FurnaceEntity ); - break; - } - - case E_BLOCK_SIGN_POST: - case E_BLOCK_WALLSIGN: - { - cSignEntity * SignEntity = new cSignEntity(BlockType, 0, 0, 0, m_World ); - if (!SignEntity->LoadFromFile( f ) ) - { - LOGERROR("ERROR READING SIGN FROM FILE %s", SourceFile.c_str()); - delete SignEntity; - return false; - } - m_BlockEntities.push_back( SignEntity ); - break; - } - - default: - { - ASSERT(!"Unhandled block entity in file"); - break; - } - } - } - f.Close(); - - // Delete old format file - if (std::remove(SourceFile.c_str()) != 0) - { - LOGERROR("Could not delete file %s", SourceFile.c_str()); - } - else - { - LOGINFO("Successfully deleted old format file \"%s\"", SourceFile.c_str()); - } - m_IsDirty = false; - return true; -} -*/ - - - - - -void cChunk::Broadcast( const cPacket * a_Packet, cClientHandle* a_Exclude) -{ - for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) - { - if (*itr == a_Exclude) - { - continue; - } - (*itr)->Send(*a_Packet); - } // for itr - LoadedByClient[] -} - - - - - -void cChunk::PositionToWorldPosition(int a_ChunkX, int a_ChunkY, int a_ChunkZ, int & a_X, int & a_Y, int & a_Z) -{ - a_Y = a_ChunkY; - a_X = m_PosX * Width + a_ChunkX; - a_Z = m_PosZ * Width + a_ChunkZ; -} - - - - - -Vector3i cChunk::PositionToWorldPosition( int a_ChunkX, int a_ChunkY, int a_ChunkZ ) -{ - return Vector3i( m_PosX * Width + a_ChunkX, m_PosY * Height + a_ChunkY, m_PosZ * Width + a_ChunkZ ); -} - - - - - -#if !C_CHUNK_USE_INLINE -# include "cChunk.inl.h" -#endif - - - - + +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + +#ifndef _WIN32 + #include +#endif + + +#include "cChunk.h" +#include "cWorld.h" +#include "cWaterSimulator.h" +#include "cLavaSimulator.h" +#include "cClientHandle.h" +#include "cServer.h" +#include "zlib.h" +#include "Defines.h" +#include "cChestEntity.h" +#include "cFurnaceEntity.h" +#include "cSignEntity.h" +#include "cTorch.h" +#include "cLadder.h" +#include "cPickup.h" +#include "cRedstone.h" +#include "cItem.h" +#include "cNoise.h" +#include "cRoot.h" +#include "cBlockToPickup.h" +#include "MersenneTwister.h" +#include "cPlayer.h" + +#include "packets/cPacket_DestroyEntity.h" +#include "packets/cPacket_PreChunk.h" +#include "packets/cPacket_BlockChange.h" +#include "packets/cPacket_MultiBlock.h" + +#include + + + + + +extern bool g_bWaterPhysics; + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// 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) + : 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) +{ + // LOGINFO("### new cChunk (%i, %i) at %p, thread 0x%x ###", a_X, a_Z, this, GetCurrentThreadId()); +} + + + + + +cChunk::~cChunk() +{ + // 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; + for (cEntityList::const_iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr) + { + if ((*itr)->GetEntityType() != cEntity::eEntityType_Player) + { + Entities.push_back(*itr); + } + } + for (cEntityList::iterator itr = Entities.begin(); itr != Entities.end(); ++itr) + { + (*itr)->RemoveFromChunk(); + (*itr)->Destroy(); + } + m_Entities.clear(); +} + + + + + +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, + cEntityList & a_Entities, + 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(); + } + + // Append entities to current entity list: + m_Entities.splice(m_Entities.end(), a_Entities); + + // 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); + + // Create block entities that the loader didn't load; fill them with defaults + CreateBlockEntities(); + + 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::GetBlockData(BLOCKTYPE * a_BlockData) +{ + memcpy(a_BlockData, m_BlockTypes, NumBlocks); + memcpy(a_BlockData + MetaOffset, m_BlockMeta, NumBlocks / 2); + memcpy(a_BlockData + LightOffset, m_BlockLight, NumBlocks / 2); + memcpy(a_BlockData + SkyLightOffset, m_BlockSkyLight, NumBlocks / 2); +} + + + + + +/// 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::Tick(float a_Dt, MTRand & a_TickRandom) +{ + cCSLock Lock(m_CSBlockLists); + unsigned int PendingSendBlocks = m_PendingSendBlocks.size(); + if( PendingSendBlocks > 1 ) + { + cPacket_MultiBlock MultiBlock; + MultiBlock.m_ChunkX = m_PosX; + MultiBlock.m_ChunkZ = m_PosZ; + MultiBlock.m_NumBlocks = (short)PendingSendBlocks; + MultiBlock.m_Data = new cPacket_MultiBlock::sBlockChange[ PendingSendBlocks ]; + MultiBlock.m_DataSize = PendingSendBlocks * sizeof( cPacket_MultiBlock::sBlockChange ); + //LOG("Sending multiblock packet for %i blocks", PendingSendBlocks ); + for( unsigned int i = 0; i < PendingSendBlocks; i++) + { + unsigned int index = m_PendingSendBlocks[i]; + Vector3i BlockPos = IndexToCoordinate( index ); + + unsigned int Coords = BlockPos.y | (BlockPos.z << 8) | (BlockPos.x << 12); + unsigned int Blocks = GetNibble( m_BlockMeta, index ) | (m_BlockTypes[index] << 4); + MultiBlock.m_Data[i].Data = Coords << 16 | Blocks; + } + m_PendingSendBlocks.clear(); + PendingSendBlocks = m_PendingSendBlocks.size(); + Broadcast( MultiBlock ); + } + if( PendingSendBlocks > 0 ) + { + for( unsigned int i = 0; i < PendingSendBlocks; i++) + { + unsigned int index = m_PendingSendBlocks[i]; + Vector3i WorldPos = PositionToWorldPosition( IndexToCoordinate( index ) ); + + cPacket_BlockChange BlockChange; + BlockChange.m_PosX = WorldPos.x; + BlockChange.m_PosY = (unsigned char)WorldPos.y; + BlockChange.m_PosZ = WorldPos.z; + BlockChange.m_BlockType = m_BlockTypes[index]; + BlockChange.m_BlockMeta = GetNibble( m_BlockMeta, index ); + Broadcast( BlockChange ); + } + m_PendingSendBlocks.clear(); + } + Lock.Unlock(); + + while ( !m_UnloadQuery.empty() ) + { + cPacket_PreChunk UnloadPacket; + UnloadPacket.m_PosX = GetPosX(); + UnloadPacket.m_PosZ = GetPosZ(); + UnloadPacket.m_bLoad = false; // Unload + (*m_UnloadQuery.begin())->Send( UnloadPacket ); + m_UnloadQuery.remove( *m_UnloadQuery.begin() ); + } + + CheckBlocks(); + + TickBlocks(a_TickRandom); + + // Tick block entities (furnaces) + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + if ((*itr)->GetBlockType() == E_BLOCK_FURNACE) + { + m_IsDirty = ((cFurnaceEntity *)(*itr))->Tick( a_Dt ) | m_IsDirty; + } + } +} + + + + + +void cChunk::CheckBlocks(void) +{ + cCSLock Lock2(m_CSBlockLists); + unsigned int NumTickBlocks = m_ToTickBlocks.size(); + Lock2.Unlock(); + + if (NumTickBlocks == 0) + { + return; + } + + Lock2.Lock(); + std::deque< unsigned int > ToTickBlocks = m_ToTickBlocks; + m_ToTickBlocks.clear(); + Lock2.Unlock(); + + for (std::deque< unsigned int >::const_iterator itr = ToTickBlocks.begin(); itr != ToTickBlocks.end(); ++itr) + { + unsigned int index = (*itr); + Vector3i BlockPos = IndexToCoordinate(index); + + BLOCKTYPE BlockType = GetBlock(index); + NIBBLETYPE BlockMeta = GetMeta (index); + switch (BlockType) + { + // Stuff that drops when block below is destroyed: + case E_BLOCK_REDSTONE_REPEATER_OFF: + case E_BLOCK_REDSTONE_REPEATER_ON: + case E_BLOCK_REDSTONE_WIRE: + case E_BLOCK_CACTUS: + case E_BLOCK_REEDS: + case E_BLOCK_WOODEN_PRESSURE_PLATE: + case E_BLOCK_STONE_PRESSURE_PLATE: + case E_BLOCK_MINECART_TRACKS: + case E_BLOCK_SIGN_POST: + case E_BLOCK_CROPS: + case E_BLOCK_SAPLING: + case E_BLOCK_YELLOW_FLOWER: + case E_BLOCK_RED_ROSE: + case E_BLOCK_RED_MUSHROOM: + case E_BLOCK_BROWN_MUSHROOM: + case E_BLOCK_SNOW: + { + if (GetBlock(BlockPos.x, BlockPos.y - 1, BlockPos.z) == E_BLOCK_AIR) + { + SetBlock( BlockPos, E_BLOCK_AIR, 0 ); + + Vector3i WorldPos = PositionToWorldPosition( BlockPos ); + + m_World->GetSimulatorManager()->WakeUp(WorldPos.x, WorldPos.y, WorldPos.z); + + cItems Pickups; + cBlockToPickup::ToPickup(BlockType, BlockMeta, E_ITEM_EMPTY, Pickups); + m_World->SpawnItemPickups(Pickups, WorldPos.x, WorldPos.y, WorldPos.z); + } + break; + } + + case E_BLOCK_REDSTONE_TORCH_OFF: + case E_BLOCK_REDSTONE_TORCH_ON: + case E_BLOCK_TORCH: + { + char Dir = cTorch::MetaDataToDirection( GetNibble( m_BlockMeta, BlockPos ) ); + Vector3i WorldPos = PositionToWorldPosition( BlockPos ); + + Vector3i AttachedTo = WorldPos; + AddDirection( AttachedTo.x, AttachedTo.y, AttachedTo.z, Dir, true ); + if( m_World->GetBlock( AttachedTo ) == E_BLOCK_AIR ) + { + SetBlock( BlockPos, E_BLOCK_AIR, 0 ); + + m_World->GetSimulatorManager()->WakeUp(WorldPos.x, WorldPos.y, WorldPos.z); + + cItems Pickups; + cBlockToPickup::ToPickup(BlockType, BlockMeta, E_ITEM_EMPTY, Pickups); + m_World->SpawnItemPickups(Pickups, WorldPos.x, WorldPos.y, WorldPos.z); + } + break; + } + + case E_BLOCK_LADDER: + { + char Dir = cLadder::MetaDataToDirection( GetNibble( m_BlockMeta, BlockPos ) ); + Vector3i WorldPos = PositionToWorldPosition( BlockPos ); + Vector3i AttachedTo = WorldPos; + AddDirection( AttachedTo.x, AttachedTo.y, AttachedTo.z, Dir, true ); + if( m_World->GetBlock( AttachedTo ) == E_BLOCK_AIR ) + { + SetBlock( BlockPos, E_BLOCK_AIR, 0 ); + cItems Pickups; + cBlockToPickup::ToPickup(BlockType, BlockMeta, E_ITEM_EMPTY, Pickups); + m_World->SpawnItemPickups(Pickups, WorldPos.x, WorldPos.y, WorldPos.z); + } + break; + } + } // switch (BlockType) + } // for itr - ToTickBlocks[] +} + + + + + +void cChunk::TickBlocks(MTRand & a_TickRandom) +{ + // 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 = a_TickRandom.randInt(0x00ffffff); + int RandomY = a_TickRandom.randInt(0x00ffffff); + int RandomZ = a_TickRandom.randInt(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 ); + BLOCKTYPE ID = m_BlockTypes[Index]; + switch( ID ) + { + case E_BLOCK_CROPS: + { + NIBBLETYPE Meta = GetMeta(Index); + if (Meta < 7) + { + FastSetBlock(m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_CROPS, ++Meta); + } + break; + } + + case E_BLOCK_GRASS: TickGrass (m_BlockTickX, m_BlockTickY, m_BlockTickZ, a_TickRandom); break; + case E_BLOCK_PUMPKIN_STEM: + case E_BLOCK_MELON_STEM: TickMelonPumpkin(m_BlockTickX, m_BlockTickY, m_BlockTickZ, Index, ID, a_TickRandom); break; + case E_BLOCK_FARMLAND: TickFarmland (m_BlockTickX, m_BlockTickY, m_BlockTickZ); break; + case E_BLOCK_SUGARCANE: GrowSugarcane (m_BlockTickX, m_BlockTickY, m_BlockTickZ, 1); break; + case E_BLOCK_CACTUS: GrowCactus (m_BlockTickX, m_BlockTickY, m_BlockTickZ, 1); break; + + case E_BLOCK_SAPLING: + { + // Check the highest bit, if set, grow the tree, if not, set it (1-bit delay): + NIBBLETYPE Meta = GetMeta(m_BlockTickX, m_BlockTickY, m_BlockTickZ); + if ((Meta & 0x08) != 0) + { + m_World->GrowTree( m_BlockTickX + m_PosX*Width, m_BlockTickY, m_BlockTickZ + m_PosZ*Width ); + } + else + { + SetMeta(m_BlockTickX, m_BlockTickY, m_BlockTickZ, Meta | 0x08); + } + break; + } + + case E_BLOCK_LEAVES: //todo, http://www.minecraftwiki.net/wiki/Data_values#Leaves + { + break; + } + + default: + { + break; + } + } + } +} + + + + + +void cChunk::TickGrass(int a_RelX, int a_RelY, int a_RelZ, MTRand & a_TickRandom) +{ + // Grass turns into dirt if there's another block on top of it: + { + BLOCKTYPE AboveBlock = cChunkDef::GetBlock(m_BlockTypes, a_RelX, a_RelY + 1, a_RelZ); + if (!((g_BlockOneHitDig[AboveBlock]) || (g_BlockTransparent[AboveBlock]))) + { + FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0); + return; + } + } + + // Grass spreads to nearby blocks if there's enough light (TODO) and free space above that block + // Ref.: http://www.minecraftwiki.net/wiki/Grass_Block#Growth + for (int i = 0; i < 2; i++) // Pick two blocks to grow to + { + int OfsX = a_TickRandom.randInt(2) - 1; // [-1 .. 1] + int OfsY = a_TickRandom.randInt(4) - 3; // [-3 .. 1] + int OfsZ = a_TickRandom.randInt(2) - 1; // [-1 .. 1] + + BLOCKTYPE DestBlock; + NIBBLETYPE DestMeta; + if ( + !UnboundedRelGetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, DestBlock, DestMeta) || + (DestBlock != E_BLOCK_DIRT) + ) + { + continue; + } + + BLOCKTYPE AboveDest; + NIBBLETYPE AboveMeta; + if ( + UnboundedRelGetBlock(a_RelX + OfsX, a_RelY + OfsY + 1, a_RelZ + OfsZ, AboveDest, AboveMeta) && + ((g_BlockOneHitDig[AboveDest]) || (g_BlockTransparent[AboveDest])) + // TODO: Query dest light, if it's enough + ) + { + UnboundedRelFastSetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, E_BLOCK_GRASS, 0); + } + } // for i - repeat twice +} + + + + + +void cChunk::TickMelonPumpkin(int a_RelX, int a_RelY, int a_RelZ, int a_BlockIdx, BLOCKTYPE a_BlockType, MTRand & a_TickRandom) +{ + NIBBLETYPE Meta = GetMeta(a_BlockIdx); + if (Meta < 7) + { + FastSetBlock(m_BlockTickX, m_BlockTickY, m_BlockTickZ, a_BlockType, ++Meta); + return; + } + GrowMelonPumpkin(a_RelX, a_RelY, a_RelZ, a_BlockType, a_TickRandom); +} + + + + + +void cChunk::TickFarmland(int a_RelX, int a_RelY, int a_RelZ) +{ + // TODO: Rain hydrates blocks, too. Check world weather, don't search for water if raining. + + // Search for water in a close proximity: + // Ref.: http://www.minecraftwiki.net/wiki/Farmland#Hydrated_Farmland_Tiles + bool Found = false; + for (int y = a_RelY; y <= a_RelY + 1; y++) + { + for (int z = a_RelZ - 4; z <= a_RelZ + 4; z++) + { + for (int x = a_RelX - 4; x <= a_RelX + 4; x++) + { + BLOCKTYPE BlockType; + NIBBLETYPE Meta; // unused + + if (!UnboundedRelGetBlock(x, y, z, BlockType, Meta)) + { + // Too close to an unloaded chunk, we might miss a water block there, so don't tick at all + return; + } + if ( + (BlockType == E_BLOCK_WATER) || + (BlockType == E_BLOCK_STATIONARY_WATER) + ) + { + Found = true; + break; + } + } // for x + if (Found) + { + break; + } + } // for z + if (Found) + { + break; + } + } // for y + + NIBBLETYPE BlockMeta = GetMeta(a_RelX, a_RelY, a_RelZ); + + if (Found) + { + // Water was found, hydrate the block until hydration reaches 7: + if (BlockMeta < 7) + { + FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_FARMLAND, ++BlockMeta); + } + return; + } + + // Water wasn't found, de-hydrate block: + if (BlockMeta > 0) + { + FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_FARMLAND, --BlockMeta); + return; + } + + // Farmland too dry. Turn back to dirt: + FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0); + + // TODO: Uproot whatever was growing on top: +} + + + + + +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: + { + // 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) +{ + if ((a_RelY < 0) || (a_RelY > cChunkDef::Height)) + { + return false; + } + + if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) + { + int BlockIdx = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); + a_BlockType = GetBlock(BlockIdx); + a_BlockMeta = GetMeta(BlockIdx); + return true; + } + return m_ChunkMap->LockedGetBlock( + m_PosX * cChunkDef::Width + a_RelX, + ZERO_CHUNK_Y * cChunkDef::Height + a_RelY, + m_PosZ * cChunkDef::Width + a_RelZ, + a_BlockType, a_BlockMeta + ); +} + + + + + +bool cChunk::UnboundedRelSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) +{ + if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) + { + SetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); + return true; + } + return m_ChunkMap->LockedSetBlock( + m_PosX * cChunkDef::Width + a_RelX, + ZERO_CHUNK_Y * cChunkDef::Height + a_RelY, + m_PosZ * cChunkDef::Width + a_RelZ, + a_BlockType, a_BlockMeta + ); +} + + + + + +bool cChunk::UnboundedRelFastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) +{ + if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) + { + FastSetBlock(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta); + return true; + } + return m_ChunkMap->LockedFastSetBlock( + m_PosX * cChunkDef::Width + a_RelX, + ZERO_CHUNK_Y * cChunkDef::Height + a_RelY, + m_PosZ * cChunkDef::Width + a_RelZ, + a_BlockType, a_BlockMeta + ); +} + + + + + +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++) + { + ENUM_BLOCK_ID BlockType = (ENUM_BLOCK_ID)m_BlockTypes[ MakeIndex( x, y, z ) ]; + switch ( BlockType ) + { + case E_BLOCK_CHEST: + { + if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) + { + m_BlockEntities.push_back( new cChestEntity( x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width, m_World) ); + } + break; + } + + case E_BLOCK_FURNACE: + { + if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) + { + m_BlockEntities.push_back( new cFurnaceEntity( x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width, m_World) ); + } + break; + } + + case E_BLOCK_SIGN_POST: + case E_BLOCK_WALLSIGN: + { + if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width)) + { + m_BlockEntities.push_back( new cSignEntity( BlockType, 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::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 ) +{ + if (a_RelX < 0 || a_RelX >= Width || a_RelY < 0 || a_RelY >= Height || a_RelZ < 0 || a_RelZ >= Width) + { + return; // Clip + } + + ASSERT(IsValid()); // Is this chunk loaded / generated? + + int index = MakeIndexNoCheck( a_RelX, a_RelY, a_RelZ ); + BLOCKTYPE OldBlockMeta = GetNibble( m_BlockMeta, index ); + BLOCKTYPE OldBlockType = m_BlockTypes[index]; + m_BlockTypes[index] = a_BlockType; + + SetNibble( m_BlockMeta, index, a_BlockMeta ); + + if ((OldBlockType == a_BlockType) && (OldBlockMeta == a_BlockMeta)) + { + return; + } + + MarkDirty(); + + { + cCSLock Lock(m_CSBlockLists); + m_PendingSendBlocks.push_back( index ); + } + + // 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) + { + SetHeight(m_HeightMap, a_RelX, a_RelZ, a_RelY); + } + else + { + for (int y = a_RelY - 1; y > 0; --y) + { + if (cChunkDef::GetBlock(m_BlockTypes, a_RelX, y, a_RelZ) != E_BLOCK_AIR) + { + SetHeight(m_HeightMap, a_RelX, a_RelZ, y); + break; + } + } // for y - column in m_BlockData + } + } + + m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY, a_RelZ ) ); + m_ToTickBlocks.push_back( MakeIndex( a_RelX + 1, a_RelY, a_RelZ ) ); + m_ToTickBlocks.push_back( MakeIndex( a_RelX - 1, a_RelY, a_RelZ ) ); + m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY + 1, a_RelZ ) ); + m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY - 1, a_RelZ ) ); + m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY, a_RelZ + 1 ) ); + m_ToTickBlocks.push_back( MakeIndex( a_RelX, a_RelY, a_RelZ - 1 ) ); + + Vector3i WorldPos = PositionToWorldPosition( a_RelX, a_RelY, a_RelZ ); + cBlockEntity* BlockEntity = GetBlockEntity( WorldPos ); + if( BlockEntity ) + { + BlockEntity->Destroy(); + RemoveBlockEntity( BlockEntity ); + delete BlockEntity; + } + switch( a_BlockType ) + { + case E_BLOCK_CHEST: + { + AddBlockEntity( new cChestEntity( WorldPos.x, WorldPos.y, WorldPos.z, m_World) ); + break; + } + case E_BLOCK_FURNACE: + { + AddBlockEntity( new cFurnaceEntity( WorldPos.x, WorldPos.y, WorldPos.z, m_World) ); + break; + } + case E_BLOCK_SIGN_POST: + case E_BLOCK_WALLSIGN: + { + AddBlockEntity( new cSignEntity( (ENUM_BLOCK_ID)a_BlockType, WorldPos.x, WorldPos.y, WorldPos.z, m_World) ); + break; + } + } // switch (a_BlockType) +} + + + + + +void cChunk::FastSetBlock( int a_X, int a_Y, int a_Z, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta) +{ + ASSERT(!((a_X < 0 || a_X >= Width || a_Y < 0 || a_Y >= Height || a_Z < 0 || a_Z >= Width))); + + ASSERT(IsValid()); + + const int index = MakeIndexNoCheck( a_X, a_Y, a_Z ); + const BLOCKTYPE OldBlock = m_BlockTypes[index]; + const BLOCKTYPE OldBlockMeta = GetNibble( m_BlockMeta, index ); + if ((OldBlock == a_BlockType) && (OldBlockMeta == a_BlockMeta)) + { + return; + } + + MarkDirty(); + + m_BlockTypes[index] = a_BlockType; + + { + cCSLock Lock(m_CSBlockLists); + m_PendingSendBlocks.push_back( index ); + } + + SetNibble( m_BlockMeta, index, a_BlockMeta ); + + // ONLY recalculate lighting if it's necessary! + if( + (g_BlockLightValue[ OldBlock ] != g_BlockLightValue[ a_BlockType ]) || + (g_BlockSpreadLightFalloff[ OldBlock ] != g_BlockSpreadLightFalloff[ a_BlockType ]) || + (g_BlockTransparent[ OldBlock ] != g_BlockTransparent[ a_BlockType ] ) + ) + { + m_IsLightValid = false; + } + + // Update heightmap, if needed: + if (a_Y >= m_HeightMap[a_X + a_Z * Width]) + { + if (a_BlockType != E_BLOCK_AIR) + { + m_HeightMap[a_X + a_Z * Width] = (unsigned char)a_Y; + } + else + { + for (int y = a_Y - 1; y > 0; --y) + { + if (m_BlockTypes[MakeIndexNoCheck(a_X, y, a_Z)] != E_BLOCK_AIR) + { + m_HeightMap[a_X + a_Z * Width] = (unsigned char)y; + break; + } + } // for y - column in m_BlockData + } + } +} + + + + + +void cChunk::SendBlockTo( int a_X, int a_Y, int a_Z, cClientHandle* a_Client ) +{ + if( a_Client == 0 ) + { + cCSLock Lock(m_CSBlockLists); + unsigned int index = MakeIndex( a_X, a_Y, a_Z ); + if( index != INDEX_OUT_OF_RANGE ) + { + m_PendingSendBlocks.push_back( index ); + } + else + { + LOGWARN("cChunk::SendBlockTo Index out of range!"); + } + return; + } + + for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if ( *itr == a_Client ) + { + unsigned int index = MakeIndex( a_X, a_Y, a_Z ); + Vector3i WorldPos = PositionToWorldPosition( a_X, a_Y, a_Z ); + cPacket_BlockChange BlockChange; + BlockChange.m_PosX = WorldPos.x; + BlockChange.m_PosY = (unsigned char)WorldPos.y; + BlockChange.m_PosZ = WorldPos.z; + if( index != INDEX_OUT_OF_RANGE ) + { + BlockChange.m_BlockType = m_BlockTypes[ index ]; + BlockChange.m_BlockMeta = GetNibble( m_BlockMeta, index ); + } // else it's both 0 + a_Client->Send( BlockChange ); + break; + } + } +} + + + + + +void cChunk::AddBlockEntity( cBlockEntity* a_BlockEntity ) +{ + cCSLock Lock(m_CSBlockLists); + m_BlockEntities.push_back( a_BlockEntity ); +} + + + + + +cBlockEntity * cChunk::GetBlockEntity(int a_X, int a_Y, int a_Z) +{ + // Assumes that the m_CSBlockList is already locked, we're being called from SetBlock() + for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr) + { + if ( + ((*itr)->GetPosX() == a_X) && + ((*itr)->GetPosY() == a_Y) && + ((*itr)->GetPosZ() == a_Z) + ) + { + 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)->GetEntityType() != cEntity::eEntityType_Pickup ) + { + continue; // Only pickups + } + 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 + { + MarkDirty(); + (reinterpret_cast(*itr))->CollectedBy( a_Player ); + } + } +} + + + + + +void cChunk::UpdateSign(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(*itr))->SetLines(a_Line1, a_Line2, a_Line3, a_Line4); + (*itr)->SendTo(NULL); + } + } // for itr - m_BlockEntities[] +} + + + + + +void cChunk::RemoveBlockEntity( cBlockEntity* a_BlockEntity ) +{ + cCSLock Lock(m_CSBlockLists); + 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() ); + cPacket_DestroyEntity DestroyEntity( *itr ); + a_Client->Send( DestroyEntity ); + } + } + 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->GetEntityType() != cEntity::eEntityType_Player) + { + MarkDirty(); + } + 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->GetEntityType() != cEntity::eEntityType_Player) + { + MarkDirty(); + } + } +} + + + + + +BLOCKTYPE cChunk::GetBlock( int a_X, int a_Y, int a_Z ) +{ + if ((a_X < 0) || (a_X >= Width) || (a_Y < 0) || (a_Y >= Height) || (a_Z < 0) || (a_Z >= Width)) return 0; // Clip + + return m_BlockTypes[ MakeIndexNoCheck( a_X, a_Y, a_Z ) ]; +} + + + + + +BLOCKTYPE cChunk::GetBlock( int a_BlockIdx ) +{ + if( a_BlockIdx < 0 || a_BlockIdx >= NumBlocks ) 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); +} + + + + + +/* +// _X 2012_02_23: Loading in old format not supported anymore +/// Loads the chunk from the old-format disk file, erases the file afterwards. Returns true if successful +bool cChunk::LoadFromDisk() +{ + AString SourceFile; + Printf(SourceFile, "world/X%i_Y%i_Z%i.bin", m_PosX, m_PosY, m_PosZ ); + + cFile f; + if (!f.Open(SourceFile, cFile::fmRead)) + { + return false; + } + + if (f.Read(m_BlockData, sizeof(m_BlockData)) != sizeof(m_BlockData)) + { + LOGERROR("ERROR READING FROM FILE %s", SourceFile.c_str()); + return false; + } + + // Now load Block Entities: + ENUM_BLOCK_ID BlockType; + while (f.Read(&BlockType, sizeof(ENUM_BLOCK_ID)) == sizeof(ENUM_BLOCK_ID)) + { + switch (BlockType) + { + case E_BLOCK_CHEST: + { + cChestEntity * ChestEntity = new cChestEntity( 0, 0, 0, m_World ); + if (!ChestEntity->LoadFromFile(f)) + { + LOGERROR("ERROR READING CHEST FROM FILE %s", SourceFile.c_str()); + delete ChestEntity; + return false; + } + m_BlockEntities.push_back( ChestEntity ); + break; + } + + case E_BLOCK_FURNACE: + { + cFurnaceEntity* FurnaceEntity = new cFurnaceEntity( 0, 0, 0, m_World ); + if (!FurnaceEntity->LoadFromFile(f)) + { + LOGERROR("ERROR READING FURNACE FROM FILE %s", SourceFile.c_str()); + delete FurnaceEntity; + return false; + } + m_BlockEntities.push_back( FurnaceEntity ); + break; + } + + case E_BLOCK_SIGN_POST: + case E_BLOCK_WALLSIGN: + { + cSignEntity * SignEntity = new cSignEntity(BlockType, 0, 0, 0, m_World ); + if (!SignEntity->LoadFromFile( f ) ) + { + LOGERROR("ERROR READING SIGN FROM FILE %s", SourceFile.c_str()); + delete SignEntity; + return false; + } + m_BlockEntities.push_back( SignEntity ); + break; + } + + default: + { + ASSERT(!"Unhandled block entity in file"); + break; + } + } + } + f.Close(); + + // Delete old format file + if (std::remove(SourceFile.c_str()) != 0) + { + LOGERROR("Could not delete file %s", SourceFile.c_str()); + } + else + { + LOGINFO("Successfully deleted old format file \"%s\"", SourceFile.c_str()); + } + m_IsDirty = false; + return true; +} +*/ + + + + + +void cChunk::Broadcast( const cPacket * a_Packet, cClientHandle* a_Exclude) +{ + for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr ) + { + if (*itr == a_Exclude) + { + continue; + } + (*itr)->Send(*a_Packet); + } // for itr - LoadedByClient[] +} + + + + + +void cChunk::PositionToWorldPosition(int a_ChunkX, int a_ChunkY, int a_ChunkZ, int & a_X, int & a_Y, int & a_Z) +{ + a_Y = a_ChunkY; + a_X = m_PosX * Width + a_ChunkX; + a_Z = m_PosZ * Width + a_ChunkZ; +} + + + + + +Vector3i cChunk::PositionToWorldPosition( int a_ChunkX, int a_ChunkY, int a_ChunkZ ) +{ + return Vector3i( m_PosX * Width + a_ChunkX, m_PosY * Height + a_ChunkY, m_PosZ * Width + a_ChunkZ ); +} + + + + + +#if !C_CHUNK_USE_INLINE +# include "cChunk.inl.h" +#endif + + + + -- cgit v1.2.3