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authormadmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-09-24 00:09:57 +0200
committermadmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-09-24 00:09:57 +0200
commitecfe6ab65bd1fc2c7f5733fe6ef4e6ddaac44a26 (patch)
tree898e37fe747f0fdcefeb88f833557fd45db3347c /source/Chunk.cpp
parentSource files cleanup: ChunkDataSerializer is Protocol-related (diff)
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Diffstat (limited to 'source/Chunk.cpp')
-rw-r--r--source/Chunk.cpp1852
1 files changed, 1852 insertions, 0 deletions
diff --git a/source/Chunk.cpp b/source/Chunk.cpp
new file mode 100644
index 000000000..7cd3b961f
--- /dev/null
+++ b/source/Chunk.cpp
@@ -0,0 +1,1852 @@
+
+#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 "WaterSimulator.h"
+#include "LavaSimulator.h"
+#include "ClientHandle.h"
+#include "Server.h"
+#include "zlib.h"
+#include "Defines.h"
+#include "ChestEntity.h"
+#include "FurnaceEntity.h"
+#include "SignEntity.h"
+#include "NoteEntity.h"
+#include "Torch.h"
+#include "Ladder.h"
+#include "Pickup.h"
+#include "Redstone.h"
+#include "Item.h"
+#include "Noise.h"
+#include "Root.h"
+#include "MersenneTwister.h"
+#include "Player.h"
+#include "BlockArea.h"
+#include "PluginManager.h"
+#include "blocks/BlockHandler.h"
+
+#include <json/json.h>
+
+
+
+
+
+
+
+
+
+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)
+{
+ 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();
+
+ 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::BroadcastPendingBlockChanges(void)
+{
+ sSetBlockVector Changes;
+ {
+ cCSLock Lock(m_CSBlockLists);
+ if (m_PendingSendBlocks.empty())
+ {
+ return;
+ }
+ Changes.reserve(m_PendingSendBlocks.size());
+ for (std::vector<unsigned int>::iterator itr = m_PendingSendBlocks.begin(), end = m_PendingSendBlocks.end(); itr != end; ++itr)
+ {
+ unsigned int index = *itr;
+ Vector3i RelPos = IndexToCoordinate(index);
+ Changes.push_back(sSetBlock(m_PosX, m_PosZ, RelPos.x, RelPos.y, RelPos.z, GetBlock(index), GetMeta(index)));
+ } // for itr - m_PendingSendBlocks[]
+ m_PendingSendBlocks.clear();
+ }
+
+ for (cClientHandleList::iterator itr = m_LoadedByClient.begin(), end = m_LoadedByClient.end(); itr != end; ++itr)
+ {
+ (*itr)->SendBlockChanges(m_PosX, m_PosZ, Changes);
+ }
+}
+
+
+
+
+
+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);
+ Vector3i WorldPos = PositionToWorldPosition( BlockPos );
+
+ cBlockHandler * Handler = BlockHandler(GetBlock(index));
+ if(!Handler->CanBeAt(m_World, WorldPos.x, WorldPos.y, WorldPos.z))
+ {
+ if(Handler->DropOnUnsuitable())
+ {
+ Handler->DropBlock(m_World, WorldPos.x, WorldPos.y, WorldPos.z);
+ }
+
+ m_World->SetBlock(WorldPos.x, WorldPos.y, WorldPos.z, E_BLOCK_AIR, 0);
+ }
+ } // 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_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;
+
+
+ default:
+ {
+ cBlockHandler * Handler = BlockHandler(ID);
+ ASSERT(Handler != NULL); // Happenned on server restart, FS #243
+ if (Handler->NeedsRandomTicks())
+ {
+ Handler->OnUpdate(m_World, m_BlockTickX + m_PosX * Width, m_BlockTickY, m_BlockTickZ + m_PosZ * Width);
+ }
+ break;
+ }
+ }
+ }
+}
+
+
+
+
+
+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.
+ // NOTE: The desert biomes do not get precipitation, so another check needs to be made.
+
+ // 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. If nothing is growing on top, turn back to dirt:
+
+ switch (GetBlock(a_RelX, a_RelY + 1, a_RelZ))
+ {
+ case E_BLOCK_CROPS:
+ case E_BLOCK_MELON_STEM:
+ case E_BLOCK_PUMPKIN_STEM:
+ break;
+ default:
+ FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0);
+ break;
+ }
+}
+
+
+
+
+
+
+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)cChunkDef::GetBlock(m_BlockTypes, 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;
+ }
+
+ case E_BLOCK_NOTE_BLOCK:
+ {
+ if (!HasBlockEntityAt(x + m_PosX * Width, y + m_PosY * Height, z + m_PosZ * Width))
+ {
+ m_BlockEntities.push_back(new cNoteEntity(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;
+ }
+ case E_BLOCK_NOTE_BLOCK:
+ {
+ AddBlockEntity(new cNoteEntity(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_RelX, int a_RelY, int a_RelZ, cClientHandle * a_Client)
+{
+ unsigned int index = MakeIndex(a_RelX, a_RelY, a_RelZ);
+ if (index == INDEX_OUT_OF_RANGE)
+ {
+ LOGWARN("cChunk::SendBlockTo Index out of range!");
+ return;
+ }
+
+ if (a_Client == NULL)
+ {
+ // Queue the block for all clients in the chunk (will be sent in Tick())
+ m_PendingSendBlocks.push_back(index);
+ return;
+ }
+
+ Vector3i wp = PositionToWorldPosition(a_RelX, a_RelY, a_RelZ);
+ a_Client->SendBlockChange(wp.x, wp.y, wp.z, GetBlock(index), GetMeta(index));
+}
+
+
+
+
+
+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)
+{
+ 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<cPickup *>(*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<cSignEntity *>(*itr))->SetLines(a_Line1, a_Line2, a_Line3, a_Line4);
+ m_World->BroadcastBlockEntity(a_PosX, a_PosY, a_PosZ);
+ }
+ } // 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() );
+ 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->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();
+ }
+ }
+}
+
+
+
+
+
+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::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::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::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::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_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);
+}
+
+
+
+
+
+void cChunk::BroadcastPlayerAnimation(const cPlayer & a_Player, 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)->SendPlayerAnimation(a_Player, a_Animation);
+ } // 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::BroadcastEntRelMoveLook(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)->SendEntRelMoveLook(a_Entity, a_RelX, a_RelY, a_RelZ);
+ } // for itr - LoadedByClient[]
+}
+
+
+
+
+
+void cChunk::BroadcastEntRelMove(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)->SendEntRelMove(a_Entity, a_RelX, a_RelY, a_RelZ);
+ } // for itr - LoadedByClient[]
+}
+
+
+
+
+
+void cChunk::BroadcastEntLook(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)->SendEntLook(a_Entity);
+ } // for itr - LoadedByClient[]
+}
+
+
+
+
+
+void cChunk::BroadcastEntHeadLook(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)->SendEntHeadLook(a_Entity);
+ } // 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::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::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::BroadcastMetadata(const cPawn & a_Pawn, const cClientHandle * a_Exclude)
+{
+ for (cClientHandleList::const_iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr )
+ {
+ if (*itr == a_Exclude)
+ {
+ continue;
+ }
+ (*itr)->SendMetadata(a_Pawn);
+ } // for itr - LoadedByClient[]
+}
+
+
+
+
+
+void cChunk::BroadcastSpawn(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::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::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::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::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::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::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);
+}
+
+
+
+
+
+#if !C_CHUNK_USE_INLINE
+# include "cChunk.inl.h"
+#endif
+
+
+
+