diff options
Diffstat (limited to '')
| -rw-r--r-- | src/World.cpp | 231 | ||||
| -rw-r--r-- | src/World.h | 2 |
2 files changed, 113 insertions, 120 deletions
diff --git a/src/World.cpp b/src/World.cpp index df1a97460..1a64105c2 100644 --- a/src/World.cpp +++ b/src/World.cpp @@ -74,102 +74,137 @@ const int TIME_SPAWN_DIVISOR = 148; //////////////////////////////////////////////////////////////////////////////// -// cWorldLoadProgress: +// cSpawnPrepare: -/// A simple thread that displays the progress of world loading / saving in cWorld::InitializeSpawn() -class cWorldLoadProgress : - public cIsThread +/** Generates and lights the spawn area of the world. Runs as a separate thread. */ +class cSpawnPrepare: + public cIsThread, + public cChunkCoordCallback { + typedef cIsThread super; + public: - cWorldLoadProgress(cWorld * a_World) : - cIsThread("cWorldLoadProgress"), - m_World(a_World) - { + cSpawnPrepare(cWorld & a_World, int a_SpawnChunkX, int a_SpawnChunkZ, int a_PrepareDistance): + super("SpawnPrepare"), + m_World(a_World), + m_SpawnChunkX(a_SpawnChunkX), + m_SpawnChunkZ(a_SpawnChunkZ), + m_PrepareDistance(a_PrepareDistance), + m_MaxIdx(a_PrepareDistance * a_PrepareDistance), + m_NumPrepared(0), + m_LastReportTime(0), + m_LastReportChunkCount(0) + { + // Start the thread: Start(); + + // Wait for start confirmation, so that the thread can be waited-upon after the constructor returns: + m_EvtStarted.Wait(); } - - void Stop(void) - { - m_ShouldTerminate = true; - Wait(); - } - -protected: - cWorld * m_World; - + + // cIsThread override: virtual void Execute(void) override { - for (;;) + // Confirm thread start: + m_EvtStarted.Set(); + + // Queue the initial chunks: + m_MaxIdx = m_PrepareDistance * m_PrepareDistance; + int maxQueue = std::min(m_MaxIdx - 1, 100); // Number of chunks to queue at once + m_NextIdx = maxQueue; + m_LastReportTime = m_Timer.GetNowTime(); + for (int i = 0; i < maxQueue; i++) { - LOG("" SIZE_T_FMT " chunks to load, %d chunks to generate", - m_World->GetStorage().GetLoadQueueLength(), - m_World->GetGenerator().GetQueueLength() - ); - - // Wait for 2 sec, but be "reasonably wakeable" when the thread is to finish - for (int i = 0; i < 20; i++) - { - cSleep::MilliSleep(100); - if (m_ShouldTerminate) - { - return; - } - } - } // for (-ever) + int chunkX, chunkZ; + decodeChunkCoords(i, chunkX, chunkZ); + m_World.GetLightingThread().QueueChunk(chunkX, chunkZ, this); + } // for i + + // Wait for the lighting thread to prepare everything. Event is set in the Call() callback: + m_EvtFinished.Wait(); } - -} ; +protected: + cWorld & m_World; + int m_SpawnChunkX; + int m_SpawnChunkZ; + int m_PrepareDistance; + /** The index of the next chunk to be queued in the lighting thread. */ + int m_NextIdx; + /** The maximum index of the prepared chunks. Queueing stops when m_NextIdx reaches this number. */ + int m_MaxIdx; + /** Total number of chunks already finished preparing. Preparation finishes when this number reaches m_MaxIdx. */ + int m_NumPrepared; -//////////////////////////////////////////////////////////////////////////////// -// cWorldLightingProgress: + /** Event used to signal that the thread has started. */ + cEvent m_EvtStarted; -/// A simple thread that displays the progress of world lighting in cWorld::InitializeSpawn() -class cWorldLightingProgress : - public cIsThread -{ -public: - cWorldLightingProgress(cLightingThread * a_Lighting) : - cIsThread("cWorldLightingProgress"), - m_Lighting(a_Lighting) - { - Start(); - } - - void Stop(void) + /** Event used to signal that the preparation is finished. */ + cEvent m_EvtFinished; + + /** The timer used to report progress every second. */ + cTimer m_Timer; + + /** The timestamp of the last progress report emitted. */ + long long m_LastReportTime; + + /** Number of chunks prepared when the last progress report was emitted. */ + int m_LastReportChunkCount; + + + // cChunkCoordCallback override: + virtual void Call(int a_ChunkX, int a_ChunkZ) { - m_ShouldTerminate = true; - Wait(); + // Check if this was the last chunk: + m_NumPrepared += 1; + if (m_NumPrepared >= m_MaxIdx) + { + m_EvtFinished.Set(); + } + + // Queue another chunk, if appropriate: + if (m_NextIdx < m_MaxIdx) + { + int chunkX, chunkZ; + decodeChunkCoords(m_NextIdx, chunkX, chunkZ); + m_World.GetLightingThread().QueueChunk(chunkX, chunkZ, this); + m_NextIdx += 1; + } + + // Report progress every 1 second: + long long now = m_Timer.GetNowTime(); + if (now - m_LastReportTime > 1000) + { + float percentDone = static_cast<float>(m_NumPrepared * 100) / m_MaxIdx; + float chunkSpeed = static_cast<float>((m_NumPrepared - m_LastReportChunkCount) * 1000) / (now - m_LastReportTime); + LOG("Preparing spawn (%s): %.02f%% done (%d chunks out of %d; %.02f chunks / sec)", + m_World.GetName().c_str(), percentDone, m_NumPrepared, m_MaxIdx, chunkSpeed + ); + m_LastReportTime = now; + m_LastReportChunkCount = m_NumPrepared; + } } - -protected: - cLightingThread * m_Lighting; - - virtual void Execute(void) override + + /** Decodes the index into chunk coords. Provides the specific chunk ordering. */ + void decodeChunkCoords(int a_Idx, int & a_ChunkX, int & a_ChunkZ) { - for (;;) + // A zigzag pattern from the top to bottom, each row alternating between forward-x and backward-x: + int z = a_Idx / m_PrepareDistance; + int x = a_Idx % m_PrepareDistance; + if ((z & 1) == 0) { - LOG("" SIZE_T_FMT " chunks remaining to light", m_Lighting->GetQueueLength() - ); - - // Wait for 2 sec, but be "reasonably wakeable" when the thread is to finish - for (int i = 0; i < 20; i++) - { - cSleep::MilliSleep(100); - if (m_ShouldTerminate) - { - return; - } - } - } // for (-ever) + // Reverse every second row: + x = m_PrepareDistance - 1 - x; + } + a_ChunkZ = m_SpawnChunkZ + z - m_PrepareDistance / 2; + a_ChunkX = m_SpawnChunkX + x - m_PrepareDistance / 2; } - -} ; +}; @@ -432,53 +467,9 @@ void cWorld::InitializeSpawn(void) IniFile.ReadFile(m_IniFileName); int ViewDist = IniFile.GetValueSetI("SpawnPosition", "PregenerateDistance", DefaultViewDist); IniFile.WriteFile(m_IniFileName); - - LOG("Preparing spawn area in world \"%s\", %d x %d chunks, total %d chunks...", m_WorldName.c_str(), ViewDist, ViewDist, ViewDist * ViewDist); - for (int x = 0; x < ViewDist; x++) - { - for (int z = 0; z < ViewDist; z++) - { - m_ChunkMap->TouchChunk(x + ChunkX-(ViewDist - 1) / 2, z + ChunkZ-(ViewDist - 1) / 2); // Queue the chunk in the generator / loader - } - } - - { - // Display progress during this process: - cWorldLoadProgress Progress(this); - - // Wait for the loader to finish loading - m_Storage.WaitForLoadQueueEmpty(); - - // Wait for the generator to finish generating - m_Generator.WaitForQueueEmpty(); - // Wait for the loader to finish saving - m_Storage.WaitForSaveQueueEmpty(); - - Progress.Stop(); - } - - // Light all chunks that have been newly generated: - LOG("Lighting spawn area in world \"%s\"...", m_WorldName.c_str()); - - for (int x = 0; x < ViewDist; x++) - { - int ChX = x + ChunkX-(ViewDist - 1) / 2; - for (int z = 0; z < ViewDist; z++) - { - int ChZ = z + ChunkZ-(ViewDist - 1) / 2; - if (!m_ChunkMap->IsChunkLighted(ChX, ChZ)) - { - m_Lighting.QueueChunk(ChX, ChZ); // Queue the chunk in the lighting thread - } - } // for z - } // for x - - { - cWorldLightingProgress Progress(&m_Lighting); - m_Lighting.WaitForQueueEmpty(); - Progress.Stop(); - } + cSpawnPrepare prep(*this, ChunkX, ChunkZ, ViewDist); + prep.Wait(); #ifdef TEST_LINEBLOCKTRACER // DEBUG: Test out the cLineBlockTracer class by tracing a few lines: diff --git a/src/World.h b/src/World.h index fe57b0789..68d0654ee 100644 --- a/src/World.h +++ b/src/World.h @@ -696,6 +696,8 @@ public: inline size_t GetStorageLoadQueueLength(void) { return m_Storage.GetLoadQueueLength(); } // tolua_export inline size_t GetStorageSaveQueueLength(void) { return m_Storage.GetSaveQueueLength(); } // tolua_export + cLightingThread & GetLightingThread(void) { return m_Lighting; } + void InitializeSpawn(void); /** Starts threads that belong to this world */ |