public NativeArray <T> GetFixedArray <T>(Entity entity) where T : struct
{
var typeIndex = TypeManager.GetTypeIndex <T>();
#if ENABLE_UNITY_COLLECTIONS_CHECKS
m_Entities->AssertEntityHasComponent(entity, typeIndex);
if (TypeManager.GetComponentType <T>().Category != TypeManager.TypeCategory.OtherValueType)
{
throw new ArgumentException($"GetComponentFixedArray<{typeof(T)}> may not be IComponentData or ISharedComponentData");
}
#endif
ComponentJobSafetyManager.CompleteWriteDependency(typeIndex);
byte *ptr;
int length;
m_Entities->GetComponentDataWithTypeAndFixedArrayLength(entity, typeIndex, out ptr, out length);
var array = NativeArrayUnsafeUtility.ConvertExistingDataToNativeArray <T>(ptr, length, Allocator.Invalid);
#if ENABLE_UNITY_COLLECTIONS_CHECKS
NativeArrayUnsafeUtility.SetAtomicSafetyHandle(ref array, ComponentJobSafetyManager.GetSafetyHandle(typeIndex, false));
#endif
return(array);
}
public T GetComponentData <T>(Entity entity) where T : struct, IComponentData
{
var typeIndex = TypeManager.GetTypeIndex <T>();
m_Entities->AssertEntityHasComponent(entity, typeIndex);
ComponentJobSafetyManager.CompleteWriteDependency(typeIndex);
var ptr = m_Entities->GetComponentDataWithType(entity, typeIndex);
T value;
UnsafeUtility.CopyPtrToStructure(ptr, out value);
return(value);
}
public T GetComponentData <T>(Entity entity) where T : struct, IComponentData
{
var typeIndex = TypeManager.GetTypeIndex <T>();
Entities->AssertEntityHasComponent(entity, typeIndex);
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (ComponentType.FromTypeIndex(typeIndex).IsZeroSized)
{
throw new System.ArgumentException($"GetComponentData<{typeof(T)}> can not be called with a zero sized component.");
}
#endif
ComponentJobSafetyManager.CompleteWriteDependency(typeIndex);
var ptr = Entities->GetComponentDataWithTypeRO(entity, typeIndex);
T value;
UnsafeUtility.CopyPtrToStructure(ptr, out value);
return(value);
}
public T GetComponentData <T>(Entity entity) where T : struct, IComponentData
{
var typeIndex = TypeManager.GetTypeIndex <T>();
Entities->AssertEntityHasComponent(entity, typeIndex);
// If the user attempts to get a zero-sized type, we return a default-initialized value instead.
// This is to prevent requiring users from checking for zero-size before calling this API.
var componentType = ComponentType.FromTypeIndex(typeIndex);
if (componentType.IsZeroSized)
{
return(default(T));
}
ComponentJobSafetyManager.CompleteWriteDependency(typeIndex);
var ptr = Entities->GetComponentDataWithTypeRO(entity, typeIndex);
T value;
UnsafeUtility.CopyPtrToStructure(ptr, out value);
return(value);
}