#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#ifndef _WIN32
#include <cstdlib>
#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 <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)
{
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: TickLeaves(m_BlockTickX, m_BlockTickY, m_BlockTickZ); 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.
// 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::TickLeaves(int a_RelX, int a_RelY, int a_RelZ)
{
// Since leaves-checking is a costly operation, it is done only if leaves are marked for checking (Meta has its 0x08 bit cleared)
// TODO: The meta is cleared (check flag set) each time a block next to the leaves changes
NIBBLETYPE Meta = GetMeta(m_BlockTickX, m_BlockTickY, m_BlockTickZ);
if ((Meta & 0x04) != 0)
{
// Player-placed leaves, don't decay
return;
}
if ((Meta & 0x08) == 0)
{
// These leaves have been checked for decay lately and nothing around them changed
return;
}
// TODO: We need a proper BFS check - is the leaves block connected to a log via other leaves blocks?
for (int y = 4; y > - 5; y--)
{
for (int z = - 4; z < 5; z++ )
{
for (int x = - 4; x < 5; x++ )
{
if (abs(x) + abs(y) + abs(z) > 4)
{
// Too far away
continue;
}
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
if (!UnboundedRelGetBlock(a_RelX + x, a_RelY + y, a_RelZ + z, BlockType, BlockMeta))
{
// Too close to unloaded chunks, don't check at all
return;
}
if (BlockType == E_BLOCK_LOG)
{
// Wood found, the leaves stay; mark them as checked:
SetNibble(m_BlockMeta, a_RelX, a_RelY, a_RelZ, Meta & 0x07);
return;
}
}
}
}
// Decay the leaves. Let them drop something if the random is right
m_World->DigBlock(m_PosX * cChunkDef::Width + a_RelX, a_RelY, m_PosZ * cChunkDef::Width + a_RelZ);
}
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<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);
(*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();
}
}
}
bool cChunk::ForEachEntity(cEntityCallback & a_Callback)
{
// The entity list is locked by the parent chunkmap's CS
for (cEntityList::iterator itr = m_Entities.begin(); itr != m_Entities.end(); ++itr)
{
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(); itr != m_BlockEntities.end(); ++itr)
{
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(); itr != m_BlockEntities.end(); ++itr)
{
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(); itr != m_BlockEntities.end(); ++itr)
{
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(); 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_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);
}
/*
// _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
