/// <summary>
/// Adds a component to each of the chunks identified by a EntityQuery and set the component values.
/// </summary>
/// <remarks>
/// This function finds all chunks whose archetype satisfies the EntityQuery and adds the specified
/// component to them.
///
/// A chunk component is common to all entities in a chunk. You can access a chunk <see cref="IComponentData"/>
/// instance through either the chunk itself or through an entity stored in that chunk.
///
/// **Important:** This function creates a sync point, which means that the EntityManager waits for all
/// currently running Jobs to complete before adding the component and no additional Jobs can start before
/// the function is finished. A sync point can cause a drop in performance because the ECS framework may not
/// be able to make use of the processing power of all available cores.
/// </remarks>
/// <param name="entityQuery">The EntityQuery identifying the chunks to modify.</param>
/// <param name="componentData">The data to set.</param>
/// <typeparam name="T">The type of component, which must implement IComponentData.</typeparam>
public void AddChunkComponentData <T>(EntityQuery entityQuery, T componentData) where T : struct, IComponentData
{
using (var chunks = entityQuery.CreateArchetypeChunkArray(Allocator.TempJob))
{
if (chunks.Length == 0)
{
return;
}
BeforeStructuralChange();
var archetypeChanges = EntityComponentStore->BeginArchetypeChangeTracking();
EntityComponentStore->AssertCanAddChunkComponent(chunks, ComponentType.ChunkComponent <T>());
var type = ComponentType.ReadWrite <T>();
var chunkType = ComponentType.FromTypeIndex(TypeManager.MakeChunkComponentTypeIndex(type.TypeIndex));
using (var entityBatchList = m_EntityComponentStore->CreateEntityBatchList(chunks))
{
EntityManagerChangeArchetypeUtility.AddComponentFromMainThread(entityBatchList, chunkType, 0,
EntityComponentStore, ManagedComponentStore);
m_EntityComponentStore->SetChunkComponent <T>(entityBatchList, componentData);
}
var changedArchetypes = EntityComponentStore->EndArchetypeChangeTracking(archetypeChanges);
EntityGroupManager.AddAdditionalArchetypes(changedArchetypes);
}
}
/// <summary>
/// Removes a component from the chunks identified by a EntityQuery.
/// </summary>
/// <remarks>
/// A chunk component is common to all entities in a chunk. You can access a chunk <see cref="IComponentData"/>
/// instance through either the chunk itself or through an entity stored in that chunk.
///
/// **Important:** This function creates a sync point, which means that the EntityManager waits for all
/// currently running Jobs to complete before removing the component and no additional Jobs can start before
/// the function is finished. A sync point can cause a drop in performance because the ECS framework may not
/// be able to make use of the processing power of all available cores.
/// </remarks>
/// <param name="entityQuery">The EntityQuery identifying the chunks to modify.</param>
/// <typeparam name="T">The type of component to remove.</typeparam>
public void RemoveChunkComponentData <T>(EntityQuery entityQuery)
{
using (var chunks = entityQuery.CreateArchetypeChunkArray(Allocator.TempJob))
{
if (chunks.Length == 0)
{
return;
}
BeforeStructuralChange();
EntityManagerChangeArchetypeUtility.RemoveComponent(chunks, ComponentType.ChunkComponent <T>(),
EntityComponentStore, ManagedComponentStore, EntityGroupManager);
}
}
public void Execute(int index)
{
var typeHash = TypeHashes[index];
var typeIndex = TypeManager.GetTypeIndexFromStableTypeHash(typeHash.StableTypeHash);
var type = TypeManager.GetType(typeIndex);
ComponentType componentType;
if ((typeHash.Flags & ComponentTypeFlags.ChunkComponent) == ComponentTypeFlags.ChunkComponent)
{
componentType = ComponentType.ChunkComponent(type);
}
else
{
componentType = new ComponentType(type);
}
PackedTypes[index] = componentType;
}
/// <summary>
/// Removes a component from the chunks identified by a EntityQuery.
/// </summary>
/// <remarks>
/// A chunk component is common to all entities in a chunk. You can access a chunk <see cref="IComponentData"/>
/// instance through either the chunk itself or through an entity stored in that chunk.
///
/// **Important:** This function creates a sync point, which means that the EntityManager waits for all
/// currently running Jobs to complete before removing the component and no additional Jobs can start before
/// the function is finished. A sync point can cause a drop in performance because the ECS framework may not
/// be able to make use of the processing power of all available cores.
/// </remarks>
/// <param name="entityQuery">The EntityQuery identifying the chunks to modify.</param>
/// <typeparam name="T">The type of component to remove.</typeparam>
public void RemoveChunkComponentData <T>(EntityQuery entityQuery)
{
using (var chunks = entityQuery.CreateArchetypeChunkArray(Allocator.TempJob))
{
if (chunks.Length == 0)
{
return;
}
BeforeStructuralChange();
var archetypeChanges = EntityComponentStore->BeginArchetypeChangeTracking();
EntityManagerChangeArchetypeUtility.RemoveComponent(chunks, ComponentType.ChunkComponent <T>(),
EntityComponentStore, ManagedComponentStore);
var changedArchetypes = EntityComponentStore->EndArchetypeChangeTracking(archetypeChanges);
EntityGroupManager.AddAdditionalArchetypes(changedArchetypes);
}
}
public bool HasChunkComponent <T>(Entity entity)
{
return(GetCheckedEntityDataAccess()->HasComponent(entity, ComponentType.ChunkComponent <T>()));
}
/// <summary>
/// Adds a chunk component to the specified entity.
/// </summary>
/// <remarks>
/// Adding a chunk component to an entity changes that entity's archetype and results in the entity being moved
/// to a different chunk, either one that already has an archetype containing the chunk component or a new
/// chunk.
///
/// A chunk component is common to all entities in a chunk. You can access a chunk <see cref="IComponentData"/>
/// instance through either the chunk itself or through an entity stored in that chunk. In either case, getting
/// or setting the component reads or writes the same data.
///
/// **Important:** This function creates a sync point, which means that the EntityManager waits for all
/// currently running Jobs to complete before adding the component and no additional Jobs can start before
/// the function is finished. A sync point can cause a drop in performance because the ECS framework may not
/// be able to make use of the processing power of all available cores.
/// </remarks>
/// <param name="entity">The entity.</param>
/// <typeparam name="T">The type of component, which must implement IComponentData.</typeparam>
public void AddChunkComponentData <T>(Entity entity) where T : struct, IComponentData
{
AddComponent(entity, ComponentType.ChunkComponent <T>());
}
/// <summary>
/// Removes a chunk component from the specified entity.
/// </summary>
/// <remarks>
/// A chunk component is common to all entities in a chunk. Removing the chunk component from an entity changes
/// that entity's archetype and results in the entity being moved to a different chunk (that does not have the
/// removed component).
///
/// **Important:** This function creates a sync point, which means that the EntityManager waits for all
/// currently running Jobs to complete before removing the component and no additional Jobs can start before
/// the function is finished. A sync point can cause a drop in performance because the ECS framework may not
/// be able to make use of the processing power of all available cores.
/// </remarks>
/// <param name="entity">The entity.</param>
/// <typeparam name="T">The type of component to remove.</typeparam>
public void RemoveChunkComponent <T>(Entity entity)
{
RemoveComponent(entity, ComponentType.ChunkComponent <T>());
}
/// <summary>
/// Removes a component from the chunks identified by a EntityQuery.
/// </summary>
/// <remarks>
/// A chunk component is common to all entities in a chunk. You can access a chunk <see cref="IComponentData"/>
/// instance through either the chunk itself or through an entity stored in that chunk.
///
/// **Important:** This function creates a sync point, which means that the EntityManager waits for all
/// currently running Jobs to complete before removing the component and no additional Jobs can start before
/// the function is finished. A sync point can cause a drop in performance because the ECS framework may not
/// be able to make use of the processing power of all available cores.
/// </remarks>
/// <param name="entityQuery">The EntityQuery identifying the chunks to modify.</param>
/// <typeparam name="T">The type of component to remove.</typeparam>
public void RemoveChunkComponentData <T>(EntityQuery entityQuery)
{
RemoveComponent(entityQuery, ComponentType.ChunkComponent <T>());
}