flewkey/cuberite-2a
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01398f8424
cuberite-2a/source/cChunk.cpp
faketruth 01398f8424 Fixed the numchunks console command. 
Added some form of reference counting to cChunk to make sure it's not referenced when deleting it.
Right now it's only needed due to the generation of chunks in a separate thread and adding it to the spread light list in cWorld

git-svn-id: http://mc-server.googlecode.com/svn/trunk@161 0a769ca7-a7f5-676a-18bf-c427514a06d6
2012-01-01 16:20:52 +00:00

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#ifndef _WIN32
#include <cstring>
#include <cstdlib>
#include <stdio.h>
#include <sys/stat.h> // for mkdir
#include <sys/types.h>
#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 <string> // memset
#include "cChestEntity.h"
#include "cFurnaceEntity.h"
#include "cSignEntity.h"
#include "cMCLogger.h"
#include "cTorch.h"
#include "cLadder.h"
#include "cPickup.h"
#include "cRedstone.h"
#include "cItem.h"
#include "cNoise.h"
#include "cRoot.h"
#include "cCriticalSection.h"
#include "cWorldGenerator.h"
#include "cBlockToPickup.h"
#include "MersenneTwister.h"
#include "packets/cPacket_DestroyEntity.h"
#include "packets/cPacket_PreChunk.h"
#include "packets/cPacket_BlockChange.h"
#include "packets/cPacket_MapChunk.h"
#include "packets/cPacket_MultiBlock.h"
#include <json/json.h>
#include <list>
#include <vector>
#include <map>
#ifndef _WIN32
#define sprintf_s(dst, size, format, ...) sprintf(dst, format, __VA_ARGS__ )
#endif
extern bool g_bWaterPhysics;
typedef std::map< int, std::string > ReferenceMap;
typedef std::list< cFurnaceEntity* > FurnaceEntityList;
typedef std::list< cClientHandle* > ClientHandleList;
typedef std::list< cBlockEntity* > BlockEntityList;
typedef std::list< cEntity* > EntityList;
struct cChunk::sChunkState
{
sChunkState()
: TotalReferencesEver( 0 )
, MinusReferences( 0 )
{}
FurnaceEntityList TickBlockEntities;
std::map< unsigned int, int > ToTickBlocks; // Protected by BlockListCriticalSection
std::vector< unsigned int > PendingSendBlocks; // Protected by BlockListCriticalSection
ClientHandleList LoadedByClient;
ClientHandleList UnloadQuery;
BlockEntityList BlockEntities; // Protected by BlockListCriticalSection
EntityList Entities;
cCriticalSection BlockListCriticalSection;
// Reference counting
cCriticalSection ReferenceCriticalSection;
ReferenceMap References;
int MinusReferences; // References.size() - MinusReferences = Actual amount of references. This is due to removal of reference without an ID (don't know which to remove, so remove none)
int TotalReferencesEver; // For creating a unique reference ID
};
cChunk::~cChunk()
{
//LOG("~cChunk() %i %i %i", m_PosX, m_PosY, m_PosZ );
if( !m_pState->LoadedByClient.empty() )
{
LOGWARN("WARNING: Deleting cChunk while it contains %i clients!", m_pState->LoadedByClient.size() );
}
m_pState->ReferenceCriticalSection.Lock();
if( GetReferenceCount() > 0 )
{
LOGWARN("WARNING: Deleting cChunk while it still has %i references!", GetReferenceCount() );
}
m_pState->ReferenceCriticalSection.Unlock();
m_pState->BlockListCriticalSection.Lock();
for( std::list<cBlockEntity*>::iterator itr = m_pState->BlockEntities.begin(); itr != m_pState->BlockEntities.end(); ++itr)
{
delete *itr;
}
m_pState->BlockEntities.clear();
m_pState->BlockListCriticalSection.Unlock();
LockEntities();
if( m_pState->Entities.size() > 0 )
{
EntityList Entities = m_pState->Entities; // Copy list to a temporary list
for( EntityList::iterator itr = Entities.begin(); itr != Entities.end(); ++itr)
{
if( (*itr)->GetEntityType() != cEntity::E_PLAYER )
{
(*itr)->RemoveFromChunk( this );
(*itr)->Destroy();
}
}
m_pState->Entities.clear();
}
UnlockEntities();
if( m_EntitiesCriticalSection )
{
delete m_EntitiesCriticalSection;
m_EntitiesCriticalSection = 0;
}
delete m_pState;
}
cChunk::cChunk(int a_X, int a_Y, int a_Z, cWorld* a_World)
: m_pState( new sChunkState )
, m_bCalculateLighting( false )
, m_bCalculateHeightmap( false )
, m_PosX( a_X )
, m_PosY( a_Y )
, m_PosZ( a_Z )
, m_BlockType( m_BlockData ) // Offset the pointers
, m_BlockMeta( m_BlockType + c_NumBlocks )
, m_BlockLight( m_BlockMeta + c_NumBlocks/2 )
, m_BlockSkyLight( m_BlockLight + c_NumBlocks/2 )
, m_BlockTickNum( 0 )
, m_BlockTickX( 0 )
, m_BlockTickY( 0 )
, m_BlockTickZ( 0 )
, m_EntitiesCriticalSection( 0 )
, m_World( a_World )
{
//LOG("cChunk::cChunk(%i, %i, %i)", a_X, a_Y, a_Z);
m_EntitiesCriticalSection = new cCriticalSection();
}
void cChunk::Initialize()
{
if( !LoadFromDisk() )
{
// Clear memory
memset( m_BlockData, 0x00, c_BlockDataSize );
m_World->GetWorldGenerator()->GenerateChunk( this );
CalculateHeightmap();
CalculateLighting();
CreateBlockEntities();
// During generation, some blocks might have been set by using (Fast)SetBlock() causing this list to fill.
// This chunk has not been sent to anybody yet, so there is no need for separately sending block changes when you can send an entire chunk
m_pState->BlockListCriticalSection.Lock();
m_pState->PendingSendBlocks.clear();
m_pState->BlockListCriticalSection.Unlock();
}
else
{
//LOGINFO("Successfully loaded from disk");
CalculateHeightmap();
}
}
void cChunk::Tick(float a_Dt)
{
if( m_bCalculateLighting )
CalculateLighting();
if( m_bCalculateHeightmap )
CalculateHeightmap();
m_pState->BlockListCriticalSection.Lock();
unsigned int PendingSendBlocks = m_pState->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_BlockCoordinates = new unsigned short[PendingSendBlocks];
MultiBlock.m_BlockTypes = new char[PendingSendBlocks];
MultiBlock.m_BlockMetas = new char[PendingSendBlocks];
//LOG("Sending multiblock packet for %i blocks", PendingSendBlocks );
for( unsigned int i = 0; i < PendingSendBlocks; i++)
{
unsigned int index = m_pState->PendingSendBlocks[i];
unsigned int Y = index % 128;
unsigned int Z = (index / 128) % 16;
unsigned int X = (index / (128*16));
MultiBlock.m_BlockCoordinates[i] = (Z&0xf) | (X&0xf)<<4 | (Y&0xff)<<8;
//LOG("X: %i Y: %i Z: %i Combo: 0x%04x", X, Y, Z, MultiBlock.m_BlockCoordinates[i] );
MultiBlock.m_BlockTypes[i] = m_BlockType[index];
MultiBlock.m_BlockMetas[i] = GetLight( m_BlockMeta, index );
}
m_pState->PendingSendBlocks.clear();
PendingSendBlocks = m_pState->PendingSendBlocks.size();
Broadcast( MultiBlock );
}
if( PendingSendBlocks > 0 )
{
for( unsigned int i = 0; i < PendingSendBlocks; i++)
{
unsigned int index = m_pState->PendingSendBlocks[i];
int Y = index % 128;
int Z = (index / 128) % 16;
int X = (index / (128*16));
cPacket_BlockChange BlockChange;
BlockChange.m_PosX = X + m_PosX*16;
BlockChange.m_PosY = (char)(Y + m_PosY*128);
BlockChange.m_PosZ = Z + m_PosZ*16;
BlockChange.m_BlockType = m_BlockType[index];
BlockChange.m_BlockMeta = GetLight( m_BlockMeta, index );
Broadcast( BlockChange );
}
m_pState->PendingSendBlocks.clear();
}
m_pState->BlockListCriticalSection.Unlock();
while( !m_pState->UnloadQuery.empty() )
{
cPacket_PreChunk UnloadPacket;
UnloadPacket.m_PosX = GetPosX();
UnloadPacket.m_PosZ = GetPosZ();
UnloadPacket.m_bLoad = false; // Unload
(*m_pState->UnloadQuery.begin())->Send( UnloadPacket );
m_pState->UnloadQuery.remove( *m_pState->UnloadQuery.begin() );
}
m_pState->BlockListCriticalSection.Lock();
std::map< unsigned int, int > ToTickBlocks = m_pState->ToTickBlocks;
m_pState->ToTickBlocks.clear();
m_pState->BlockListCriticalSection.Unlock();
bool isRedstone = false;
for( std::map< unsigned int, int>::iterator itr = ToTickBlocks.begin(); itr != ToTickBlocks.end(); ++itr )
{
if( (*itr).second < 0 ) continue;
unsigned int index = (*itr).first;
int Y = index % 128;
int Z = (index / 128) % 16;
int X = (index / (128*16));
char BlockID = GetBlock( index );
switch( BlockID )
{
case E_BLOCK_REDSTONE_REPEATER_OFF:
case E_BLOCK_REDSTONE_REPEATER_ON:
case E_BLOCK_REDSTONE_WIRE:
{
isRedstone = true;
}
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: // Stuff that drops when block below is destroyed
{
if( GetBlock( X, Y-1, Z ) == E_BLOCK_AIR )
{
SetBlock( X, Y, Z, E_BLOCK_AIR, 0 );
int wX, wY, wZ;
PositionToWorldPosition(X, Y, Z, wX, wY, wZ);
m_World->GetSimulatorManager()->WakeUp(wX, wY, wZ);
if (isRedstone) {
cRedstone Redstone(m_World);
Redstone.ChangeRedstone( (X+m_PosX*16), (Y+m_PosY*16), (Z+m_PosZ*16), false );
}
cPickup* Pickup = new cPickup( (X+m_PosX*16) * 32 + 16, (Y+m_PosY*128) * 32 + 16, (Z+m_PosZ*16) * 32 + 16, cItem( cBlockToPickup::ToPickup( (ENUM_ITEM_ID)BlockID, E_ITEM_EMPTY) , 1 ) );
Pickup->Initialize( m_World );
}
}
break;
case E_BLOCK_REDSTONE_TORCH_OFF:
case E_BLOCK_REDSTONE_TORCH_ON:
isRedstone = true;
case E_BLOCK_TORCH:
{
char Dir = cTorch::MetaDataToDirection( GetLight( m_BlockMeta, X, Y, Z ) );
LOG("MetaData: %i", Dir );
int XX = X + m_PosX*16;
char YY = (char)Y;
int ZZ = Z + m_PosZ*16;
AddDirection( XX, YY, ZZ, Dir, true );
if( m_World->GetBlock( XX, YY, ZZ ) == E_BLOCK_AIR )
{
SetBlock( X, Y, Z, 0, 0 );
if (isRedstone) {
cRedstone Redstone(m_World);
Redstone.ChangeRedstone( (X+m_PosX*16), (Y+m_PosY*16), (Z+m_PosZ*16), false );
}
cPickup* Pickup = new cPickup( (X+m_PosX*16) * 32 + 16, (Y+m_PosY*128) * 32 + 16, (Z+m_PosZ*16) * 32 + 16, cItem( cBlockToPickup::ToPickup( (ENUM_ITEM_ID)BlockID, E_ITEM_EMPTY) , 1 ) );
Pickup->Initialize( m_World );
}
}
break;
case E_BLOCK_LADDER:
{
char Dir = cLadder::MetaDataToDirection( GetLight( m_BlockMeta, X, Y, Z ) );
int XX = X + m_PosX*16;
char YY = (char)Y;
int ZZ = Z + m_PosZ*16;
AddDirection( XX, YY, ZZ, Dir, true );
if( m_World->GetBlock( XX, YY, ZZ ) == E_BLOCK_AIR )
{
SetBlock( X, Y, Z, E_BLOCK_AIR, 0 );
cPickup* Pickup = new cPickup( (X+m_PosX*16) * 32 + 16, (Y+m_PosY*128) * 32 + 16, (Z+m_PosZ*16) * 32 + 16, cItem( (ENUM_ITEM_ID)BlockID, 1 ) );
Pickup->Initialize( m_World );
}
}
break;
default:
break;
};
}
MTRand r1;
// Tick dem blocks
int RandomX = r1.randInt();
int RandomY = r1.randInt();
int RandomZ = r1.randInt();
for(int i = 0; i < 50; i++)
{
m_BlockTickX = (m_BlockTickX + RandomX) % 16;
m_BlockTickY = (m_BlockTickY + RandomY) % 128;
m_BlockTickZ = (m_BlockTickZ + RandomZ) % 16;
//LOG("%03i %03i %03i", m_BlockTickX, m_BlockTickY, m_BlockTickZ);
if( m_BlockTickY > m_HeightMap[ m_BlockTickX + m_BlockTickZ*16 ] ) continue; // It's all air up here
//m_BlockTickNum = (m_BlockTickNum + 1 ) % c_NumBlocks;
unsigned int Index = MakeIndex( m_BlockTickX, m_BlockTickY, m_BlockTickZ );
char ID = m_BlockType[Index];
switch( ID )
{
case E_BLOCK_DIRT:
{
char AboveBlock = GetBlock( Index+1 );
if ( (AboveBlock == 0) && GetLight( m_BlockSkyLight, Index ) > 0xf/2 ) // Half lit //changed to not allow grass if any one hit object is on top
{
FastSetBlock( m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_GRASS, GetLight( m_BlockMeta, Index ) );
}
if ( (g_BlockOneHitDig[AboveBlock]) && GetLight( m_BlockSkyLight, Index+1 ) > 0xf/2 ) // Half lit //ch$
{
FastSetBlock( m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_GRASS, GetLight( m_BlockMeta, Index ) );
}
}
break;
case E_BLOCK_GRASS:
{
char AboveBlock = GetBlock( Index+1 );
if (!( (AboveBlock == 0) || (g_BlockOneHitDig[AboveBlock]) || (g_BlockTransparent[AboveBlock]) ) ) //changed to not allow grass if any one hit object is on top
{
FastSetBlock( m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_DIRT, GetLight( m_BlockMeta, Index ) );
}
}
break;
case E_BLOCK_SAPLING: //todo: check meta of sapling. change m_World->GrowTree to look change trunk and leaves based on meta of sapling
{
FastSetBlock( m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_AIR, GetLight( m_BlockMeta, Index ) );
m_World->GrowTree( m_BlockTickX + m_PosX*16, m_BlockTickY, m_BlockTickZ + m_PosZ*16 );
}
break;
case E_BLOCK_LEAVES: //todo, http://www.minecraftwiki.net/wiki/Data_values#Leaves
{
}
break;
default:
break;
}
}
// Tick block entities (furnace)
std::list< cFurnaceEntity* > TickBlockEntites = m_pState->TickBlockEntities; // Dangerous stuff, better make a copy.
for( std::list< cFurnaceEntity* >::iterator itr = TickBlockEntites.begin(); itr != TickBlockEntites.end(); ++itr )
{
if( !(*itr)->Tick( a_Dt ) ) // Remove from list
{
m_pState->TickBlockEntities.remove( *itr );
}
}
}
char cChunk::GetHeight( int a_X, int a_Z )
{
if( a_X >= 0 && a_X < 16 && a_Z >= 0 && a_Z < 16 )
return m_HeightMap[a_X + a_Z*16];
return 0;
}
void cChunk::CreateBlockEntities()
{
m_pState->BlockListCriticalSection.Lock();
for(int x = 0; x < 16; x++)
{
for(int z = 0; z < 16; z++)
{
for(int y = 0; y < 128; y++)
{
ENUM_BLOCK_ID BlockType = (ENUM_BLOCK_ID)m_BlockData[ MakeIndex( x, y, z ) ];
switch( BlockType )
{
case E_BLOCK_CHEST:
{
m_pState->BlockEntities.push_back( new cChestEntity( x + m_PosX*16, y + m_PosY*128, z + m_PosZ*16, this ) );
}
break;
case E_BLOCK_FURNACE:
{
m_pState->BlockEntities.push_back( new cFurnaceEntity( x + m_PosX*16, y + m_PosY*128, z + m_PosZ*16, this ) );
}
break;
case E_BLOCK_SIGN_POST:
case E_BLOCK_WALLSIGN:
{
m_pState->BlockEntities.push_back( new cSignEntity( BlockType, x + m_PosX*16, y + m_PosY*128, z + m_PosZ*16, this ) );
}
break;
default:
{
}
break;
}
}
}
}
m_pState->BlockListCriticalSection.Unlock();
}
void cChunk::CalculateHeightmap()
{
m_bCalculateHeightmap = false;
for(int x = 0; x < 16; x++)
{
for(int z = 0; z < 16; z++)
{
for(int y = 127; y > -1; y--)
{
int index = MakeIndex( x, y, z );
if(m_BlockData[index] != E_BLOCK_AIR)
{
m_HeightMap[x + z*16] = (char)y;
break;
}
}
}
}
}
void cChunk::CalculateLighting()
{
// Calculate sunlight
memset(m_BlockSkyLight, 0xff, c_NumBlocks/2 ); // Set all to fully lit, so everything above HeightMap is lit
for(int x = 0; x < 16; x++)
{
for(int z = 0; z < 16; z++)
{
char sunlight = 0xf;
for(int y = m_HeightMap[x + z*16]; y > -1; y--)
{
int index = y + (z * 128) + (x * 128 * 16);
if( g_BlockTransparent[ (int)m_BlockData[index] ] == false )
{
sunlight = 0x0;
}
SetLight( m_BlockSkyLight, x, y, z, sunlight );
}
}
}
// Calculate blocklights
for(int x = 0; x < 16; x++)
{
for(int z = 0; z < 16; z++)
{
int MaxHeight = m_HeightMap[x + z*16];
for(int y = 0; y < MaxHeight; y++)
{
char BlockID = GetBlock(x, y, z);
SetLight( m_BlockLight, x, y, z, g_BlockLightValue[(int)BlockID] );
}
}
}
SpreadLight(m_BlockSkyLight);
SpreadLight(m_BlockLight);
// Stop it from calculating again :P
m_bCalculateLighting = false;
}
void cChunk::SpreadLight(char* a_LightBuffer)
{
// Spread the sunlight
for(int x = 0; x < 16; x++) for(int z = 0; z < 16; z++) for(int y = 0; y < 128; y++)
{
int index = y + (z * 128) + (x * 128 * 16);
if( g_BlockSpreadLightFalloff[ m_BlockData[index] ] > 0 )
{
SpreadLightOfBlock(a_LightBuffer, x, y, z, g_BlockSpreadLightFalloff[ m_BlockData[index] ]);
}
}
for(int x = 15; x > -1; x--) for(int z = 15; z > -1; z--) for(int y = 127; y > -1; y--)
{
int index = y + (z * 128) + (x * 128 * 16);
if( g_BlockSpreadLightFalloff[ m_BlockData[index] ] > 0 )
{
SpreadLightOfBlock(a_LightBuffer, x, y, z, g_BlockSpreadLightFalloff[ m_BlockData[index] ]);
}
}
bool bCalcLeft, bCalcRight, bCalcFront, bCalcBack;
bCalcLeft = bCalcRight = bCalcFront = bCalcBack = false;
// Spread to neighbour chunks X-axis
cChunk* LeftChunk = m_World->GetChunkUnreliable( m_PosX-1, m_PosY, m_PosZ );
cChunk* RightChunk = m_World->GetChunkUnreliable( m_PosX+1, m_PosY, m_PosZ );
char* LeftSky = 0, *RightSky = 0;
if(LeftChunk) LeftSky = (a_LightBuffer==m_BlockSkyLight)?LeftChunk->pGetSkyLight():LeftChunk->pGetLight();
if(RightChunk) RightSky = (a_LightBuffer==m_BlockSkyLight)?RightChunk->pGetSkyLight():RightChunk->pGetLight();
for(int z = 0; z < 16; z++) for(int y = 0; y < 128; y++)
{
if( LeftChunk )
{
int index = y + (z * 128) + (0 * 128 * 16);
if( g_BlockSpreadLightFalloff[ m_BlockData[index] ] > 0 )
{
char CurrentLight = GetLight( a_LightBuffer, 0, y, z );
char LeftLight = GetLight( LeftSky, 15, y, z );
if( LeftLight < CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ] )
{
SetLight( LeftSky, 15, y, z, MAX(0, CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ]) );
bCalcLeft = true;
}
}
}
if( RightChunk )
{
int index = y + (z * 128) + (15 * 128 * 16);
if( g_BlockSpreadLightFalloff[ m_BlockData[index] ] > 0 )
{
char CurrentLight = GetLight( a_LightBuffer, 15, y, z );
char RightLight = GetLight( RightSky, 0, y, z );
if( RightLight < CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ] )
{
SetLight( RightSky, 0, y, z, MAX(0, CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ]) );
bCalcRight = true;
}
}
}
}
// Spread to neighbour chunks Z-axis
cChunk* FrontChunk = m_World->GetChunkUnreliable( m_PosX, m_PosY, m_PosZ-1 );
cChunk* BackChunk = m_World->GetChunkUnreliable( m_PosX, m_PosY, m_PosZ+1 );
char* FrontSky = 0, *BackSky = 0;
if(FrontChunk) FrontSky = (a_LightBuffer==m_BlockSkyLight)?FrontChunk->pGetSkyLight():FrontChunk->pGetLight();
if(BackChunk) BackSky = (a_LightBuffer==m_BlockSkyLight)?BackChunk->pGetSkyLight():BackChunk->pGetLight();
for(int x = 0; x < 16; x++) for(int y = 0; y < 128; y++)
{
if( FrontChunk )
{
int index = y + (0 * 128) + (x * 128 * 16);
if( g_BlockSpreadLightFalloff[ m_BlockData[index] ] > 0 )
{
char CurrentLight = GetLight( a_LightBuffer, x, y, 0 );
char FrontLight = GetLight( FrontSky, x, y, 15 );
if( FrontLight < CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ] )
{
SetLight( FrontSky, x, y, 15, MAX(0, CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ]) );
bCalcFront = true;
}
}
}
if( BackChunk )
{
int index = y + (15 * 128) + (x * 128 * 16);
if( g_BlockSpreadLightFalloff[ m_BlockData[index] ] > 0 )
{
char CurrentLight = GetLight( a_LightBuffer, x, y, 15 );
char BackLight = GetLight( BackSky, x, y, 0 );
if( BackLight < CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ] )
{
SetLight( BackSky, x, y, 0, MAX(0, CurrentLight-g_BlockSpreadLightFalloff[ m_BlockData[index] ]) );
bCalcBack = true;
}
}
}
}
if( bCalcLeft ) m_World->ReSpreadLighting( LeftChunk );
if( bCalcRight ) m_World->ReSpreadLighting( RightChunk );
if( bCalcFront ) m_World->ReSpreadLighting( FrontChunk );
if( bCalcBack ) m_World->ReSpreadLighting( BackChunk );
}
void cChunk::AsyncUnload( cClientHandle* a_Client )
{
m_pState->UnloadQuery.remove( a_Client ); // Make sure this client is only in the list once
m_pState->UnloadQuery.push_back( a_Client );
}
void cChunk::Send( cClientHandle* a_Client )
{
cPacket_PreChunk PreChunk;
PreChunk.m_PosX = m_PosX;
PreChunk.m_PosZ = m_PosZ;
PreChunk.m_bLoad = true;
a_Client->Send( PreChunk );
a_Client->Send( cPacket_MapChunk( this ) );
m_pState->BlockListCriticalSection.Lock();
for( BlockEntityList::iterator itr = m_pState->BlockEntities.begin(); itr != m_pState->BlockEntities.end(); ++itr )
{
(*itr)->SendTo( a_Client );
}
m_pState->BlockListCriticalSection.Unlock();
}
void cChunk::SetBlock( int a_X, int a_Y, int a_Z, char a_BlockType, char a_BlockMeta )
{
if(a_X < 0 || a_X >= 16 || a_Y < 0 || a_Y >= 128 || a_Z < 0 || a_Z >= 16)
{
//printf(">>>>>>>>>>>>>>>> CLIPPED SETBLOCK %i %i %i\n", a_X, a_Y, a_Z );
return; // Clip
}
int index = a_Y + (a_Z * 128) + (a_X * 128 * 16);
char OldBlockMeta = GetLight( m_BlockMeta, index );
char OldBlockType = m_BlockType[index];
m_BlockType[index] = a_BlockType;
SetLight( m_BlockMeta, index, a_BlockMeta );
if( OldBlockType != a_BlockType || OldBlockMeta != a_BlockMeta )
{
//LOG("Old: %i %i New: %i %i", OldBlockType, OldBlockMeta, a_BlockType, a_BlockMeta );
m_pState->BlockListCriticalSection.Lock();
m_pState->PendingSendBlocks.push_back( index );
m_pState->ToTickBlocks[ MakeIndex( a_X, a_Y, a_Z ) ]++;
m_pState->ToTickBlocks[ MakeIndex( a_X+1, a_Y, a_Z ) ]++;
m_pState->ToTickBlocks[ MakeIndex( a_X-1, a_Y, a_Z ) ]++;
m_pState->ToTickBlocks[ MakeIndex( a_X, a_Y+1, a_Z ) ]++;
m_pState->ToTickBlocks[ MakeIndex( a_X, a_Y-1, a_Z ) ]++;
m_pState->ToTickBlocks[ MakeIndex( a_X, a_Y, a_Z+1 ) ]++;
m_pState->ToTickBlocks[ MakeIndex( a_X, a_Y, a_Z-1 ) ]++;
cBlockEntity* BlockEntity = GetBlockEntity( a_X + m_PosX*16, a_Y+m_PosY*128, a_Z+m_PosZ*16 );
if( BlockEntity )
{
BlockEntity->Destroy();
RemoveBlockEntity( BlockEntity );
delete BlockEntity;
}
switch( a_BlockType )
{
case E_BLOCK_CHEST:
AddBlockEntity( new cChestEntity( a_X + m_PosX*16, a_Y + m_PosY*128, a_Z + m_PosZ*16, this ) );
break;
case E_BLOCK_FURNACE:
AddBlockEntity( new cFurnaceEntity( a_X + m_PosX*16, a_Y + m_PosY*128, a_Z + m_PosZ*16, this ) );
break;
case E_BLOCK_SIGN_POST:
case E_BLOCK_WALLSIGN:
AddBlockEntity( new cSignEntity( (ENUM_BLOCK_ID)a_BlockType, a_X + m_PosX*16, a_Y + m_PosY*128, a_Z + m_PosZ*16, this ) );
break;
default:
break;
};
m_pState->BlockListCriticalSection.Unlock();
}
//RecalculateHeightmap();
//RecalculateLighting();
}
void cChunk::FastSetBlock( int a_X, int a_Y, int a_Z, char a_BlockType, char a_BlockMeta )
{
if(a_X < 0 || a_X >= 16 || a_Y < 0 || a_Y >= 128 || a_Z < 0 || a_Z >= 16)
{
//printf(">>>>>>>>>>>>>>>> CLIPPED SETBLOCK %i %i %i\n", a_X, a_Y, a_Z );
return; // Clip
}
const int index = a_Y + (a_Z * 128) + (a_X * 128 * 16);
const char OldBlock = m_BlockType[index];
m_BlockType[index] = a_BlockType;
m_pState->BlockListCriticalSection.Lock();
m_pState->PendingSendBlocks.push_back( index );
m_pState->BlockListCriticalSection.Unlock();
SetLight( 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 ] )
{
RecalculateLighting();
}
// Recalculate next tick
RecalculateHeightmap();
}
void cChunk::SendBlockTo( int a_X, int a_Y, int a_Z, cClientHandle* a_Client )
{
if( a_Client == 0 )
{
m_pState->BlockListCriticalSection.Lock();
m_pState->PendingSendBlocks.push_back( MakeIndex( a_X, a_Y, a_Z ) );
m_pState->BlockListCriticalSection.Unlock();
return;
}
for( std::list< cClientHandle* >::iterator itr = m_pState->LoadedByClient.begin(); itr != m_pState->LoadedByClient.end(); ++itr )
{
if( *itr == a_Client )
{
unsigned int index = MakeIndex( a_X, a_Y, a_Z );
cPacket_BlockChange BlockChange;
BlockChange.m_PosX = a_X + m_PosX*16;
BlockChange.m_PosY = (char)(a_Y + m_PosY*128);
BlockChange.m_PosZ = a_Z + m_PosZ*16;
BlockChange.m_BlockType = m_BlockType[ index ];
BlockChange.m_BlockMeta = GetLight( m_BlockMeta, index );
a_Client->Send( BlockChange );
break;
}
}
}
void cChunk::AddBlockEntity( cBlockEntity* a_BlockEntity )
{
m_pState->BlockListCriticalSection.Lock();
m_pState->BlockEntities.push_back( a_BlockEntity );
m_pState->BlockListCriticalSection.Unlock();
}
void cChunk::RemoveBlockEntity( cBlockEntity* a_BlockEntity )
{
m_pState->BlockListCriticalSection.Lock();
m_pState->BlockEntities.remove( a_BlockEntity );
m_pState->BlockListCriticalSection.Unlock();
}
void cChunk::AddClient( cClientHandle* a_Client )
{
m_pState->LoadedByClient.remove( a_Client );
m_pState->LoadedByClient.push_back( a_Client );
LockEntities();
for( EntityList::iterator itr = m_pState->Entities.begin(); itr != m_pState->Entities.end(); ++itr )
{
LOG("%i %i %i Spawning on %s", m_PosX, m_PosY, m_PosZ, a_Client->GetUsername() );
(*itr)->SpawnOn( a_Client );
}
UnlockEntities();
}
void cChunk::RemoveClient( cClientHandle* a_Client )
{
m_pState->LoadedByClient.remove( a_Client );
if( !a_Client->IsDestroyed() )
{
LockEntities();
for( EntityList::iterator itr = m_pState->Entities.begin(); itr != m_pState->Entities.end(); ++itr )
{
LOG("%i %i %i Destroying on %s", m_PosX, m_PosY, m_PosZ, a_Client->GetUsername() );
cPacket_DestroyEntity DestroyEntity( *itr );
a_Client->Send( DestroyEntity );
}
UnlockEntities();
}
}
void cChunk::AddEntity( cEntity & a_Entity )
{
LockEntities();
m_pState->Entities.push_back( &a_Entity );
UnlockEntities();
}
bool cChunk::RemoveEntity( cEntity & a_Entity, cChunk* a_CalledFrom /* = 0 */ )
{
LockEntities();
unsigned int SizeBefore = m_pState->Entities.size();
m_pState->Entities.remove( &a_Entity );
if( SizeBefore == m_pState->Entities.size() )
{
LOG("WARNING: Entity was not in chunk %i %i %i", m_PosX, m_PosY, m_PosZ );
if( !a_CalledFrom )
{
UnlockEntities();
return m_World->RemoveEntityFromChunk( a_Entity, this );
}
UnlockEntities();
return false;
}
UnlockEntities();
return true;
}
void cChunk::LockEntities()
{
m_EntitiesCriticalSection->Lock();
}
void cChunk::UnlockEntities()
{
m_EntitiesCriticalSection->Unlock();
}
char cChunk::GetBlock( int a_X, int a_Y, int a_Z )
{
if(a_X < 0 || a_X >= 16 || a_Y < 0 || a_Y >= 128 || a_Z < 0 || a_Z >= 16) return 0; // Clip
int index = a_Y + (a_Z * 128) + (a_X * 128 * 16);
return m_BlockType[index];
}
char cChunk::GetBlock( int a_BlockIdx )
{
if( a_BlockIdx < 0 || a_BlockIdx >= c_NumBlocks ) return 0;
return m_BlockType[ a_BlockIdx ];
}
cBlockEntity* cChunk::GetBlockEntity( int a_X, int a_Y, int a_Z )
{
m_pState->BlockListCriticalSection.Lock();
for( std::list<cBlockEntity*>::iterator itr = m_pState->BlockEntities.begin(); itr != m_pState->BlockEntities.end(); ++itr)
{
if( (*itr)->GetPosX() == a_X &&
(*itr)->GetPosY() == a_Y &&
(*itr)->GetPosZ() == a_Z )
{
cBlockEntity* BlockEnt = *itr;
m_pState->BlockListCriticalSection.Unlock();
return BlockEnt;
}
}
m_pState->BlockListCriticalSection.Unlock();
return 0;
}
bool cChunk::LoadFromDisk()
{
char SourceFile[128];
sprintf_s(SourceFile, 128, "world/X%i_Y%i_Z%i.bin", m_PosX, m_PosY, m_PosZ );
FILE* f = 0;
#ifdef _WIN32
if( fopen_s(&f, SourceFile, "rb" ) == 0 ) // no error
#else
if( (f = fopen(SourceFile, "rb" )) != 0 ) // no error
#endif
{
if( fread( m_BlockData, sizeof(char)*c_BlockDataSize, 1, f) != 1 ) { LOGERROR("ERROR READING FROM FILE %s", SourceFile); fclose(f); return false; }
// Now load Block Entities
m_pState->BlockListCriticalSection.Lock();
ENUM_BLOCK_ID BlockType;
while( fread( &BlockType, sizeof(ENUM_BLOCK_ID), 1, f) == 1 )
{
switch( BlockType )
{
case E_BLOCK_CHEST:
{
cChestEntity* ChestEntity = new cChestEntity( 0, 0, 0, this );
if( !ChestEntity->LoadFromFile( f ) )
{
LOGERROR("ERROR READING CHEST FROM FILE %s", SourceFile );
delete ChestEntity;
fclose(f);
return false;
}
m_pState->BlockEntities.push_back( ChestEntity );
}
break;
case E_BLOCK_FURNACE:
{
cFurnaceEntity* FurnaceEntity = new cFurnaceEntity( 0, 0, 0, this );
if( !FurnaceEntity->LoadFromFile( f ) )
{
LOGERROR("ERROR READING FURNACE FROM FILE %s", SourceFile );
delete FurnaceEntity;
fclose(f);
return false;
}
m_pState->BlockEntities.push_back( FurnaceEntity );
m_pState->TickBlockEntities.push_back( FurnaceEntity ); // They need tickin'
}
break;
case E_BLOCK_SIGN_POST:
case E_BLOCK_WALLSIGN:
{
cSignEntity* SignEntity = new cSignEntity(BlockType, 0, 0, 0, this );
if( !SignEntity->LoadFromFile( f ) )
{
LOGERROR("ERROR READING SIGN FROM FILE %s", SourceFile );
delete SignEntity;
fclose(f);
return false;
}
m_pState->BlockEntities.push_back( SignEntity );
}
break;
default:
break;
}
}
m_pState->BlockListCriticalSection.Unlock();
fclose(f);
// Delete old format file
if( std::remove( SourceFile ) != 0 )
LOGERROR("Could not delete file %s", SourceFile );
else
LOGINFO("Successfully deleted olf format file %s", SourceFile );
return true;
}
else
{
//LOGWARN("COULD NOT OPEN FILE %s\n", SourceFile);
return false;
}
}
bool cChunk::SaveToDisk()
{
return true; //no more saving old format!
char SourceFile[128];
sprintf_s(SourceFile, 128, "world/X%i_Y%i_Z%i.bin", m_PosX, m_PosY, m_PosZ );
#ifdef _WIN32
{
SECURITY_ATTRIBUTES Attrib;
Attrib.nLength = sizeof(SECURITY_ATTRIBUTES);
Attrib.lpSecurityDescriptor = NULL;
Attrib.bInheritHandle = false;
::CreateDirectory("world", &Attrib);
}
#else
{
mkdir("world", S_IRWXU | S_IRWXG | S_IRWXO);
}
#endif
FILE* f = 0;
#ifdef _WIN32
if( fopen_s(&f, SourceFile, "wb" ) == 0 ) // no error
#else
if( (f = fopen(SourceFile, "wb" )) != 0 ) // no error
#endif
{
fwrite( m_BlockData, sizeof(char)*c_BlockDataSize, 1, f );
m_pState->BlockListCriticalSection.Lock();
// Now write Block Entities
for( std::list<cBlockEntity*>::iterator itr = m_pState->BlockEntities.begin(); itr != m_pState->BlockEntities.end(); ++itr)
{
cBlockEntity* BlockEntity = *itr;
switch( BlockEntity->GetBlockType() )
{
case E_BLOCK_CHEST:
{
cChestEntity* ChestEntity = reinterpret_cast< cChestEntity* >( BlockEntity );
ChestEntity->WriteToFile( f );
}
break;
case E_BLOCK_FURNACE:
{
cFurnaceEntity* FurnaceEntity = reinterpret_cast< cFurnaceEntity* >( BlockEntity );
FurnaceEntity->WriteToFile( f );
}
break;
case E_BLOCK_SIGN_POST:
case E_BLOCK_WALLSIGN:
{
cSignEntity* SignEntity = reinterpret_cast< cSignEntity* >( BlockEntity );
SignEntity->WriteToFile( f );
}
break;
default:
break;
}
}
m_pState->BlockListCriticalSection.Unlock();
fclose(f);
return true;
}
else
{
LOGERROR("ERROR WRITING TO FILE %s", SourceFile);
return false;
}
}
void cChunk::Broadcast( const cPacket & a_Packet, cClientHandle* a_Exclude /* = 0 */ ) const
{
for( std::list< cClientHandle* >::const_iterator itr = m_pState->LoadedByClient.begin(); itr != m_pState->LoadedByClient.end(); ++itr )
{
if( *itr == a_Exclude ) continue;
(*itr)->Send( a_Packet );
}
}
void cChunk::LoadFromJson( const Json::Value & a_Value )
{
m_pState->BlockListCriticalSection.Lock();
// Load chests
Json::Value AllChests = a_Value.get("Chests", Json::nullValue);
if( !AllChests.empty() )
{
for( Json::Value::iterator itr = AllChests.begin(); itr != AllChests.end(); ++itr )
{
Json::Value & Chest = *itr;
cChestEntity* ChestEntity = new cChestEntity(0,0,0, this);
if( !ChestEntity->LoadFromJson( Chest ) )
{
LOGERROR("ERROR READING CHEST FROM JSON!" );
delete ChestEntity;
}
else m_pState->BlockEntities.push_back( ChestEntity );
}
}
// Load furnaces
Json::Value AllFurnaces = a_Value.get("Furnaces", Json::nullValue);
if( !AllFurnaces.empty() )
{
for( Json::Value::iterator itr = AllFurnaces.begin(); itr != AllFurnaces.end(); ++itr )
{
Json::Value & Furnace = *itr;
cFurnaceEntity* FurnaceEntity = new cFurnaceEntity(0,0,0, this);
if( !FurnaceEntity->LoadFromJson( Furnace ) )
{
LOGERROR("ERROR READING FURNACE FROM JSON!" );
delete FurnaceEntity;
}
else m_pState->BlockEntities.push_back( FurnaceEntity );
}
}
// Load signs
Json::Value AllSigns = a_Value.get("Signs", Json::nullValue);
if( !AllSigns.empty() )
{
for( Json::Value::iterator itr = AllSigns.begin(); itr != AllSigns.end(); ++itr )
{
Json::Value & Sign = *itr;
cSignEntity* SignEntity = new cSignEntity( E_BLOCK_SIGN_POST, 0,0,0, this);
if( !SignEntity->LoadFromJson( Sign ) )
{
LOGERROR("ERROR READING SIGN FROM JSON!" );
delete SignEntity;
}
else m_pState->BlockEntities.push_back( SignEntity );
}
}
m_pState->BlockListCriticalSection.Unlock();
}
void cChunk::SaveToJson( Json::Value & a_Value )
{
Json::Value AllChests;
Json::Value AllFurnaces;
Json::Value AllSigns;
m_pState->BlockListCriticalSection.Lock();
for( std::list<cBlockEntity*>::iterator itr = m_pState->BlockEntities.begin(); itr != m_pState->BlockEntities.end(); ++itr)
{
cBlockEntity* BlockEntity = *itr;
switch( BlockEntity->GetBlockType() )
{
case E_BLOCK_CHEST:
{
cChestEntity* ChestEntity = reinterpret_cast< cChestEntity* >( BlockEntity );
Json::Value NewChest;
ChestEntity->SaveToJson( NewChest );
AllChests.append( NewChest );
}
break;
case E_BLOCK_FURNACE:
{
cFurnaceEntity* FurnaceEntity = reinterpret_cast< cFurnaceEntity* >( BlockEntity );
Json::Value NewFurnace;
FurnaceEntity->SaveToJson( NewFurnace );
AllFurnaces.append( NewFurnace );
}
break;
case E_BLOCK_SIGN_POST:
case E_BLOCK_WALLSIGN:
{
cSignEntity* SignEntity = reinterpret_cast< cSignEntity* >( BlockEntity );
Json::Value NewSign;
SignEntity->SaveToJson( NewSign );
AllSigns.append( NewSign );
}
break;
default:
break;
}
}
m_pState->BlockListCriticalSection.Unlock();
if( !AllChests.empty() )
a_Value["Chests"] = AllChests;
if( !AllFurnaces.empty() )
a_Value["Furnaces"] = AllFurnaces;
if( !AllSigns.empty() )
a_Value["Signs"] = AllSigns;
}
EntityList & cChunk::GetEntities()
{
return m_pState->Entities;
}
const ClientHandleList & cChunk::GetClients()
{
return m_pState->LoadedByClient;
}
void cChunk::AddTickBlockEntity( cFurnaceEntity* a_Entity )
{
m_pState->TickBlockEntities.remove( a_Entity );
m_pState->TickBlockEntities.push_back( a_Entity );
}
void cChunk::RemoveTickBlockEntity( cFurnaceEntity* a_Entity )
{
m_pState->TickBlockEntities.remove( a_Entity );
}
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 * 16 + a_ChunkX;
a_Z = m_PosZ * 16 + a_ChunkZ;
}
int cChunk::AddReference( const char* a_Info /* = 0 */ )
{
m_pState->ReferenceCriticalSection.Lock();
m_pState->TotalReferencesEver++;
std::string Info;
if( a_Info ) Info = a_Info;
m_pState->References[ m_pState->TotalReferencesEver ] = Info;
int ID = m_pState->TotalReferencesEver;
m_pState->ReferenceCriticalSection.Unlock();
return ID;
}
void cChunk::RemoveReference( int a_ID )
{
m_pState->ReferenceCriticalSection.Lock();
if( a_ID > -1 ) // Remove reference with an ID
{
bool bFound = false;
for( ReferenceMap::iterator itr = m_pState->References.begin(); itr != m_pState->References.end(); ++itr )
{
if( itr->first == a_ID )
{
bFound = true;
m_pState->References.erase( itr );
break;
}
}
if( !bFound )
{
LOGWARN("WARNING: cChunk: Tried to remove reference %i but it could not be found! May cause memory leak", a_ID );
}
}
else // No ID so add one to MinusReferences
{
m_pState->MinusReferences++;
if( (int)m_pState->References.size() - m_pState->MinusReferences < 0 )
{
LOGWARN("WARNING: cChunk: Tried to remove reference %i, but the chunk is not referenced!", a_ID);
}
}
m_pState->ReferenceCriticalSection.Unlock();
}
int cChunk::GetReferenceCount()
{
m_pState->ReferenceCriticalSection.Unlock();
int Refs = (int)m_pState->References.size() - m_pState->MinusReferences;
m_pState->ReferenceCriticalSection.Lock();
return Refs;
}
#if !C_CHUNK_USE_INLINE
# include "cChunk.inc"
#endif
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