flewkey/cuberite-2a
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Optimized chunk loader

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This commit is contained in:
Howaner 2014-10-02 23:50:41 +02:00
parent ecef85574d
commit 382e014ebc
7 changed files with 93 additions and 105 deletions
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5
src/ChunkSender.cpp
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@ -192,13 +192,10 @@ void cChunkSender::SendChunk(int a_ChunkX, int a_ChunkZ, cClientHandle * a_Clien
ASSERT(m_World != NULL);
// Ask the client if it still wants the chunk:
if (a_Client != NULL)
{
if (!a_Client->WantsSendChunk(a_ChunkX, a_ChunkZ))
if ((a_Client != NULL) && !a_Client->WantsSendChunk(a_ChunkX, a_ChunkZ))
{
return;
}
}
// If the chunk has no clients, no need to packetize it:
if (!m_World->HasChunkAnyClients(a_ChunkX, a_ChunkZ))

153
src/ClientHandle.cpp
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@ -70,8 +70,6 @@ cClientHandle::cClientHandle(const cSocket * a_Socket, int a_ViewDistance) :
m_OutgoingData(64 KiB),
m_Player(NULL),
m_HasSentDC(false),
m_LastStreamedChunkX(0x7fffffff), // bogus chunk coords to force streaming upon login
m_LastStreamedChunkZ(0x7fffffff),
m_TimeSinceLastPacket(0),
m_Ping(1000),
m_PingID(1),
@ -401,53 +399,84 @@ void cClientHandle::Authenticate(const AString & a_Name, const AString & a_UUID,
void cClientHandle::StreamChunks(void)
void cClientHandle::StreamNextChunk(void)
{
if ((m_State < csAuthenticated) || (m_State >= csDestroying))
{
return;
}
ASSERT(m_Player != NULL);
Vector3d LookVector = m_Player->GetLookVector();
LookVector.Normalize();
int ChunkPosX = FAST_FLOOR_DIV((int)m_Player->GetPosX(), cChunkDef::Width);
int ChunkPosZ = FAST_FLOOR_DIV((int)m_Player->GetPosZ(), cChunkDef::Width);
if ((ChunkPosX == m_LastStreamedChunkX) && (ChunkPosZ == m_LastStreamedChunkZ))
Vector3d Position = m_Player->GetEyePosition();
for (size_t Range = 0; Range < (size_t)m_ViewDistance; Range++)
{
// Already streamed for this position
Vector3d Vector = Position + LookVector * cChunkDef::Width * Range;
int RangeX, RangeZ = 0;
cChunkDef::BlockToChunk((int)std::floor(Vector.x), (int)std::floor(Vector.z), RangeX, RangeZ);
for (size_t X = 0; X < 6; X++)
{
for (size_t Z = 0; Z < 6; Z++)
{
int ChunkX = RangeX + ((X >= 3) ? (2 - X) : X);
int ChunkZ = RangeZ + ((Z >= 3) ? (2 - Z) : Z);
cChunkCoords Coords(ChunkX, ChunkZ);
// If the chunk already loading/loaded -> skip
{
cCSLock Lock(m_CSChunkLists);
if (
(std::find(m_ChunksToSend.begin(), m_ChunksToSend.end(), Coords) != m_ChunksToSend.end()) ||
(std::find(m_LoadedChunks.begin(), m_LoadedChunks.end(), Coords) != m_LoadedChunks.end())
)
{
continue;
}
}
// Unloaded chunk found -> Send it to the client.
StreamChunk(ChunkX, ChunkZ);
return;
}
m_LastStreamedChunkX = ChunkPosX;
m_LastStreamedChunkZ = ChunkPosZ;
}
}
}
LOGD("Streaming chunks centered on [%d, %d], view distance %d", ChunkPosX, ChunkPosZ, m_ViewDistance);
cWorld * World = m_Player->GetWorld();
ASSERT(World != NULL);
// Remove all loaded chunks that are no longer in range; deferred to out-of-CS:
cChunkCoordsList RemoveChunks;
void cClientHandle::UnloadOutOfRangeChunks(void)
{
int ChunkPosX = FAST_FLOOR_DIV((int)m_Player->GetPosX(), cChunkDef::Width);
int ChunkPosZ = FAST_FLOOR_DIV((int)m_Player->GetPosZ(), cChunkDef::Width);
cChunkCoordsList ChunksToRemove;
{
cCSLock Lock(m_CSChunkLists);
for (cChunkCoordsList::iterator itr = m_LoadedChunks.begin(); itr != m_LoadedChunks.end();)
{
int RelX = (*itr).m_ChunkX - ChunkPosX;
int RelZ = (*itr).m_ChunkZ - ChunkPosZ;
if ((RelX > m_ViewDistance) || (RelX < -m_ViewDistance) || (RelZ > m_ViewDistance) || (RelZ < -m_ViewDistance))
int DiffX = Diff((*itr).m_ChunkX, ChunkPosX);
int DiffZ = Diff((*itr).m_ChunkZ, ChunkPosZ);
if ((DiffX > m_ViewDistance) || (DiffZ > m_ViewDistance))
{
RemoveChunks.push_back(*itr);
ChunksToRemove.push_back(*itr);
itr = m_LoadedChunks.erase(itr);
}
else
{
++itr;
}
} // for itr - m_LoadedChunks[]
}
for (cChunkCoordsList::iterator itr = m_ChunksToSend.begin(); itr != m_ChunksToSend.end();)
{
int RelX = (*itr).m_ChunkX - ChunkPosX;
int RelZ = (*itr).m_ChunkZ - ChunkPosZ;
if ((RelX > m_ViewDistance) || (RelX < -m_ViewDistance) || (RelZ > m_ViewDistance) || (RelZ < -m_ViewDistance))
int DiffX = Diff((*itr).m_ChunkX, ChunkPosX);
int DiffZ = Diff((*itr).m_ChunkZ, ChunkPosZ);
if ((DiffX > m_ViewDistance) || (DiffZ > m_ViewDistance))
{
itr = m_ChunksToSend.erase(itr);
}
@ -455,47 +484,16 @@ void cClientHandle::StreamChunks(void)
{
++itr;
}
} // for itr - m_ChunksToSend[]
}
for (cChunkCoordsList::iterator itr = RemoveChunks.begin(); itr != RemoveChunks.end(); ++itr)
}
for (cChunkCoordsList::iterator itr = ChunksToRemove.begin(); itr != ChunksToRemove.end(); ++itr)
{
World->RemoveChunkClient(itr->m_ChunkX, itr->m_ChunkZ, this);
m_Player->GetWorld()->RemoveChunkClient(itr->m_ChunkX, itr->m_ChunkZ, this);
m_Protocol->SendUnloadChunk(itr->m_ChunkX, itr->m_ChunkZ);
} // for itr - RemoveChunks[]
// Add all chunks that are in range and not yet in m_LoadedChunks:
// Queue these smartly - from the center out to the edge
for (int d = 0; d <= m_ViewDistance; ++d) // cycle through (square) distance, from nearest to furthest
{
// For each distance add chunks in a hollow square centered around current position:
for (int i = -d; i <= d; ++i)
{
StreamChunk(ChunkPosX + d, ChunkPosZ + i);
StreamChunk(ChunkPosX - d, ChunkPosZ + i);
} // for i
for (int i = -d + 1; i < d; ++i)
{
StreamChunk(ChunkPosX + i, ChunkPosZ + d);
StreamChunk(ChunkPosX + i, ChunkPosZ - d);
} // for i
} // for d
// Touch chunks GENERATEDISTANCE ahead to let them generate:
for (int d = m_ViewDistance + 1; d <= m_ViewDistance + GENERATEDISTANCE; ++d) // cycle through (square) distance, from nearest to furthest
{
// For each distance touch chunks in a hollow square centered around current position:
for (int i = -d; i <= d; ++i)
{
World->TouchChunk(ChunkPosX + d, ChunkPosZ + i);
World->TouchChunk(ChunkPosX - d, ChunkPosZ + i);
} // for i
for (int i = -d + 1; i < d; ++i)
{
World->TouchChunk(ChunkPosX + i, ChunkPosZ + d);
World->TouchChunk(ChunkPosX + i, ChunkPosZ - d);
} // for i
} // for d
}
}
@ -539,11 +537,6 @@ void cClientHandle::RemoveFromAllChunks()
cCSLock Lock(m_CSChunkLists);
m_LoadedChunks.clear();
m_ChunksToSend.clear();
// Also reset the LastStreamedChunk coords to bogus coords,
// so that all chunks are streamed in subsequent StreamChunks() call (FS #407)
m_LastStreamedChunkX = 0x7fffffff;
m_LastStreamedChunkZ = 0x7fffffff;
}
}
@ -1859,9 +1852,6 @@ void cClientHandle::RemoveFromWorld(void)
m_Protocol->SendUnloadChunk(itr->m_ChunkX, itr->m_ChunkZ);
} // for itr - Chunks[]
// Here, we set last streamed values to bogus ones so everything is resent
m_LastStreamedChunkX = 0x7fffffff;
m_LastStreamedChunkZ = 0x7fffffff;
m_HasSentPlayerChunk = false;
}
@ -1928,6 +1918,17 @@ void cClientHandle::Tick(float a_Dt)
}
}
if ((m_State >= csAuthenticated) && (m_State < csDestroying))
{
StreamNextChunk(); // Streams the next chunk
// Unload all chunks that are out of the view distance (all 2 seconds)
if ((m_Player->GetWorld()->GetWorldAge() % 40) == 0)
{
UnloadOutOfRangeChunks();
}
}
// Handle block break animation:
if (m_BlockDigAnimStage > -1)
{
@ -1964,7 +1965,7 @@ void cClientHandle::ServerTick(float a_Dt)
if (m_State == csAuthenticated)
{
StreamChunks();
StreamNextChunk();
// Remove the client handle from the server, it will be ticked from its cPlayer object from now on
cRoot::Get()->GetServer()->ClientMovedToWorld(this);
@ -2723,18 +2724,8 @@ void cClientHandle::SetUsername( const AString & a_Username)
void cClientHandle::SetViewDistance(int a_ViewDistance)
{
if (a_ViewDistance < MIN_VIEW_DISTANCE)
{
a_ViewDistance = MIN_VIEW_DISTANCE;
}
if (a_ViewDistance > MAX_VIEW_DISTANCE)
{
a_ViewDistance = MAX_VIEW_DISTANCE;
}
m_ViewDistance = a_ViewDistance;
// Need to re-stream chunks for the change to become apparent:
StreamChunks();
m_ViewDistance = Clamp(a_ViewDistance, MIN_VIEW_DISTANCE, MAX_VIEW_DISTANCE);
LOGD("Setted %s's view distance to %i", GetUsername().c_str(), m_ViewDistance);
}

10
src/ClientHandle.h
View File

@ -113,7 +113,11 @@ public:
/** Authenticates the specified user, called by cAuthenticator */
void Authenticate(const AString & a_Name, const AString & a_UUID, const Json::Value & a_Properties);
void StreamChunks(void);
/** This function sends a new unloaded chunk to the player. */
void StreamNextChunk(void);
/** Remove all loaded chunks that are no longer in range */
void UnloadOutOfRangeChunks(void);
// Removes the client from all chunks. Used when switching worlds or destroying the player
void RemoveFromAllChunks(void);
@ -353,10 +357,6 @@ private:
bool m_HasSentDC; ///< True if a D/C packet has been sent in either direction
// Chunk position when the last StreamChunks() was called; used to avoid re-streaming while in the same chunk
int m_LastStreamedChunkX;
int m_LastStreamedChunkZ;
/** Seconds since the last packet data was received (updated in Tick(), reset in DataReceived()) */
float m_TimeSinceLastPacket;

1
src/Entities/Player.cpp
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@ -235,7 +235,6 @@ void cPlayer::Tick(float a_Dt, cChunk & a_Chunk)
CanMove = false;
TeleportToCoords(m_LastPos.x, m_LastPos.y, m_LastPos.z);
}
m_ClientHandle->StreamChunks();
}
if (CanMove)

1
src/Protocol/Protocol17x.cpp
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@ -1901,6 +1901,7 @@ void cProtocol172::HandlePacketClientSettings(cByteBuffer & a_ByteBuffer)
HANDLE_READ(a_ByteBuffer, ReadByte, Byte, ShowCape);
m_Client->SetLocale(Locale);
m_Client->SetViewDistance(ViewDistance);
// TODO: Do anything with the other values.
}

1
src/Protocol/Protocol18x.cpp
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@ -2160,6 +2160,7 @@ void cProtocol180::HandlePacketClientSettings(cByteBuffer & a_ByteBuffer)
HANDLE_READ(a_ByteBuffer, ReadChar, char, SkinFlags);
m_Client->SetLocale(Locale);
m_Client->SetViewDistance(ViewDistance);
// TODO: Handle other values
}

1
src/World.cpp
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@ -3491,7 +3491,6 @@ void cWorld::AddQueuedPlayers(void)
cClientHandle * Client = (*itr)->GetClientHandle();
if (Client != NULL)
{
Client->StreamChunks();
Client->SendPlayerMoveLook();
Client->SendHealth();
Client->SendWholeInventory(*(*itr)->GetWindow());