void BeforeStructuralChange()
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (ComponentJobSafetyManager.IsInTransaction)
{
throw new InvalidOperationException("Access to EntityManager is not allowed after EntityManager.BeginExclusiveEntityTransaction(); has been called.");
}
#endif
ComponentJobSafetyManager.CompleteAllJobsAndInvalidateArrays();
}
//@TODO: Not clear to me what this method is really for...
public void CompleteAllJobs()
{
ComponentJobSafetyManager.CompleteAllJobsAndInvalidateArrays();
}
public ComponentGroup CreateEntityGroup(ArchetypeManager typeMan, EntityDataManager *entityDataManager,
ComponentType *requiredTypes, int requiredCount)
{
var hash = HashUtility.Fletcher32((ushort *)requiredTypes,
requiredCount * sizeof(ComponentType) / sizeof(short));
var grp = GetCachedGroupData(hash, requiredTypes, requiredCount);
if (grp != null)
{
return(new ComponentGroup(grp, m_JobSafetyManager, typeMan, entityDataManager));
}
m_JobSafetyManager.CompleteAllJobsAndInvalidateArrays();
grp = (EntityGroupData *)m_GroupDataChunkAllocator.Allocate(sizeof(EntityGroupData), 8);
grp->PrevGroup = m_LastGroupData;
m_LastGroupData = grp;
grp->RequiredComponentsCount = requiredCount;
grp->RequiredComponents =
(ComponentType *)m_GroupDataChunkAllocator.Construct(sizeof(ComponentType) * requiredCount, 4,
requiredTypes);
grp->ReaderTypesCount = 0;
grp->WriterTypesCount = 0;
grp->SubtractiveComponentsCount = 0;
for (var i = 0; i != requiredCount; i++)
{
if (requiredTypes[i].AccessModeType == ComponentType.AccessMode.Subtractive)
{
grp->SubtractiveComponentsCount++;
}
if (!requiredTypes[i].RequiresJobDependency)
{
continue;
}
switch (requiredTypes[i].AccessModeType)
{
case ComponentType.AccessMode.ReadOnly:
grp->ReaderTypesCount++;
break;
default:
grp->WriterTypesCount++;
break;
}
}
grp->ReaderTypes = (int *)m_GroupDataChunkAllocator.Allocate(sizeof(int) * grp->ReaderTypesCount, 4);
grp->WriterTypes = (int *)m_GroupDataChunkAllocator.Allocate(sizeof(int) * grp->WriterTypesCount, 4);
var curReader = 0;
var curWriter = 0;
for (var i = 0; i != requiredCount; i++)
{
if (!requiredTypes[i].RequiresJobDependency)
{
continue;
}
switch (requiredTypes[i].AccessModeType)
{
case ComponentType.AccessMode.ReadOnly:
grp->ReaderTypes[curReader++] = requiredTypes[i].TypeIndex;
break;
default:
grp->WriterTypes[curWriter++] = requiredTypes[i].TypeIndex;
break;
}
}
grp->RequiredComponents =
(ComponentType *)m_GroupDataChunkAllocator.Construct(sizeof(ComponentType) * requiredCount, 4,
requiredTypes);
grp->FirstMatchingArchetype = null;
grp->LastMatchingArchetype = null;
for (var type = typeMan.m_LastArchetype; type != null; type = type->PrevArchetype)
{
AddArchetypeIfMatching(type, grp);
}
m_GroupLookup.Add(hash, (IntPtr)grp);
return(new ComponentGroup(grp, m_JobSafetyManager, typeMan, entityDataManager));
}