public bool AddComponent(Entity entity, ComponentType componentType)
{
if (HasComponent(entity, componentType))
{
return(false);
}
EntityComponentStore->AssertCanAddComponent(entity, componentType);
if (m_IsMainThread)
{
EntityManager.BeforeStructuralChange();
}
var archetypeChanges = EntityComponentStore->BeginArchetypeChangeTracking();
StructuralChange.AddComponentEntity(EntityComponentStore, &entity, componentType.TypeIndex);
var changedArchetypes = EntityComponentStore->EndArchetypeChangeTracking(archetypeChanges);
EntityQueryManager.AddAdditionalArchetypes(changedArchetypes);
ManagedComponentStore.Playback(ref EntityComponentStore->ManagedChangesTracker);
return(true);
}
/// <summary>
/// EntityManager.BeforeStructuralChange must be called before invoking this.
/// ManagedComponentStore.Playback must be called after invoking this.
/// EntityQueryManager.AddAdditionalArchetypes must be called after invoking this.
/// Invoking this must be wrapped in ArchetypeChangeTracking.
/// </summary>
/// <param name="entity"></param>
/// <param name="componentType"></param>
/// <returns></returns>
public bool AddComponentDuringStructuralChange(Entity entity, ComponentType componentType)
{
if (HasComponent(entity, componentType))
{
return(false);
}
var result = StructuralChange.AddComponentEntity(EntityComponentStore, &entity, componentType.TypeIndex);
return(result);
}
