//Sending newly created Mesh to the GC, making the change visible, this is NOT threadsafe, the chunk must be done one by one.
//This could lead to "lag" if too many chunks are sending their new mesh to the GC at the same time (during the same frame)
//Maybe it will be worth to check is a limit of chunk by update must be placed (But this will slow down chunk creation time)
private void SendMeshesToGC(int maximumUpdateOrderPossible)
{
int nbrchunksSend2GC = 0;
//Process each chunk that are in IsOutsideLightSourcePropagated state, and not currently processed
foreach (VisualChunk chunk in SortedChunks.Where(x => x.State == ChunkState.MeshesChanged &&
x.ThreadStatus == ThreadsManager.ThreadStatus.Idle &&
x.UpdateOrder == maximumUpdateOrderPossible))
{
chunk.UpdateOrder = 0;
chunk.Graphics.SendCubeMeshesToBuffers();
nbrchunksSend2GC++;
#if PERFTEST
if (chunk.ChunkID == Utopia.Worlds.Chunks.WorldChunks.perf.cubeChunkID)
{
Utopia.Worlds.Chunks.WorldChunks.perf.AddData("FINISHED");
Utopia.Worlds.Chunks.WorldChunks.perf.Actif = false;
foreach (var data in Utopia.Worlds.Chunks.WorldChunks.perf.CollectedData)
{
Console.WriteLine(data);
}
}
else
{
Utopia.Worlds.Chunks.WorldChunks.perf.AddData("SendMeshesToGC Started " + chunk.ChunkID);
}
#endif
if (nbrchunksSend2GC > VisualWorldParameters.VisibleChunkInWorld.X)
{
break;
}
}
}
//Landscape chunk Slicing visualization Handling
private void SlicingUpdate(GameTime timeSpend)
{
if (SortedChunks.Count(x => x.State != ChunkState.DisplayInSyncWithMeshes) > 0)
{
return;
}
if (_inputsManager.ActionsManager.isTriggered(UtopiaActions.LandscapeSlicerUp))
{
if (_sliceValue == -1)
{
_sliceValue = (int)_camManager.ActiveCamera.WorldPosition.ValueInterp.Y;
}
_sliceValue++;
}
if (_inputsManager.ActionsManager.isTriggered(UtopiaActions.LandscapeSlicerDown))
{
if (_sliceValue == -1)
{
_sliceValue = (int)_camManager.ActiveCamera.WorldPosition.ValueInterp.Y;
}
_sliceValue--;
}
if (_inputsManager.ActionsManager.isTriggered(UtopiaActions.LandscapeSlicerOff))
{
_sliceValue = -1;
}
}
private void ChunkUpdateManager()
{
int maximumUpdateOrderPossible = SortedChunks.Max(x => x.UpdateOrder);
UpdateLeveled();
ChunkResyncing();
CreateNewChunk();
PropagateOuterChunkLights();
CreateChunkMeshes(maximumUpdateOrderPossible);
SendMeshesToGC(maximumUpdateOrderPossible);
}
//Will create new chunks based on chunks with state = Empty
private void CreateNewChunk()
{
//Process each chunk that are in Empty state, and not currently processed
foreach (VisualChunk chunk in SortedChunks.Where(x => (x.State == ChunkState.Empty || x.State == ChunkState.LandscapeCreated) && x.ThreadStatus == ThreadsManager.ThreadStatus.Idle))
{
VisualChunk localChunk = chunk;
//Start chunk creation process in a threaded way !
localChunk.ThreadStatus = ThreadsManager.ThreadStatus.Locked; //Lock the thread before entering async process.
#if DEBUG
localChunk.ThreadLockedBy = "CreateNewChunk";
#endif
//SmartThread.ThreadPool.QueueWorkItem(ChunkCreationThreadedSteps_Threaded, chunk, WorkItemPriority.Normal);
S33M3DXEngine.Threading.ThreadsManager.RunAsync(() => ChunkCreationThreadedSteps_Threaded(localChunk));
}
}
private void CheckWrapping()
{
if (SortedChunks.Count(x => x.State != ChunkState.DisplayInSyncWithMeshes) > 0)
{
return;
}
// Get World Border line ! => Highest and lowest X et Z chunk components
//Compute Player position against WorldRange
var resultmin = new Vector3D(PlayerManager.Player.Position.X - VisualWorldParameters.WorldRange.Position.X,
PlayerManager.Player.Position.Y - VisualWorldParameters.WorldRange.Position.Y,
PlayerManager.Player.Position.Z - VisualWorldParameters.WorldRange.Position.Z);
var resultmax = new Vector3D(VisualWorldParameters.WorldRange.Max.X - PlayerManager.Player.Position.X,
VisualWorldParameters.WorldRange.Max.Y - PlayerManager.Player.Position.Y,
VisualWorldParameters.WorldRange.Max.Z - PlayerManager.Player.Position.Z);
float wrapOrder = float.MaxValue;
ChunkWrapType operation = ChunkWrapType.Z_Plus1;
//FindLowest value !
if (_chunkCreationTrigger > resultmin.X || _chunkCreationTrigger > resultmin.Z ||
_chunkCreationTrigger > resultmax.X || _chunkCreationTrigger > resultmax.Z)
{
if (resultmin.X < wrapOrder)
{
wrapOrder = (float)resultmin.X; operation = ChunkWrapType.X_Minus1;
}
if (resultmin.Z < wrapOrder)
{
wrapOrder = (float)resultmin.Z; operation = ChunkWrapType.Z_Minus1;
}
if (resultmax.X < wrapOrder)
{
wrapOrder = (float)resultmax.X; operation = ChunkWrapType.X_Plus1;
}
if (resultmax.Z < wrapOrder)
{
wrapOrder = (float)resultmax.Z; operation = ChunkWrapType.Z_Plus1;
}
_chunkWrapper.AddWrapOperation(operation);
}
}
//Will take the newly created chunks || the chunk that didn't had the outside light propagate (Border chunk), and propagate the light from the surroundings chunks
private void PropagateOuterChunkLights()
{
//Process each chunk that are in InnerLightsSourcePropagated state, and not being currently processed
foreach (VisualChunk chunk in SortedChunks.Where(x =>
(x.State == ChunkState.InnerLightsSourcePropagated || (x.IsOutsideLightSourcePropagated == false && x.IsBorderChunk == false && x.State >= ChunkState.InnerLightsSourcePropagated)) &&
x.ThreadStatus == ThreadsManager.ThreadStatus.Idle))
{
VisualChunk localChunk = chunk;
//all the surrounding chunks must have had their LightSources Processed at minimum.
if (localChunk.IsBorderChunk == true || localChunk.SurroundingChunksMinimumState(ChunkState.InnerLightsSourcePropagated))
{
//Check if the surrounding chunk from this chunk are in the correct state = ChunkState.InnerLightsSourcePropagated
localChunk.ThreadStatus = ThreadsManager.ThreadStatus.Locked; //Lock the thread before entering async process.
#if DEBUG
localChunk.ThreadLockedBy = "PropagateOuterChunkLights";
#endif
S33M3DXEngine.Threading.ThreadsManager.RunAsync(() => ChunkOuterLightPropagation_Threaded(localChunk));
}
}
}
private void CreateChunkMeshes(int maximumUpdateOrderPossible)
{
//Process each chunk that are in IsOutsideLightSourcePropagated state, and not currently processed
foreach (VisualChunk chunk in SortedChunks.Where(x => x.State == ChunkState.OuterLightSourcesProcessed && x.ThreadStatus == ThreadsManager.ThreadStatus.Idle))
{
VisualChunk localChunk = chunk;
if (maximumUpdateOrderPossible > 0 && localChunk.UpdateOrder == 0)
{
continue;
}
//all the surrounding chunks must have had their LightSources Processed at minimum.
if (localChunk.SurroundingChunksMinimumState(ChunkState.OuterLightSourcesProcessed))
{
localChunk.ThreadStatus = ThreadsManager.ThreadStatus.Locked;
#if DEBUG
localChunk.ThreadLockedBy = "CreateChunkMeshes";
#endif
S33M3DXEngine.Threading.ThreadsManager.RunAsync(() => CreateChunkMeshes_Threaded(localChunk), localChunk.UpdateOrder > 0 ? ThreadsManager.ThreadTaskPriority.High : ThreadsManager.ThreadTaskPriority.Normal);
}
}
}
/// <summary>
/// Enumerates all visible chunks by player (i.e. not frustum culled)
/// </summary>
/// <returns></returns>
public IEnumerable <VisualChunk> VisibleChunks()
{
return(SortedChunks.Where(chunk => !chunk.Graphics.IsFrustumCulled));
}