public Differs(IEntityHierarchy hierarchy)
{
foreach (var componentType in hierarchy.Strategy.ComponentsToWatch)
{
if (!ComponentDataDiffer.CanWatch(componentType) && !SharedComponentDataDiffer.CanWatch(componentType))
{
throw new NotSupportedException($" The component {componentType} requested by strategy of type {hierarchy.Strategy.GetType()} cannot be watched. No suitable differ available.");
}
}
m_Hierarchy = hierarchy;
m_EntityDiffer = new EntityDiffer(hierarchy.World);
foreach (var componentToWatch in hierarchy.Strategy.ComponentsToWatch)
{
var typeInfo = TypeManager.GetTypeInfo(componentToWatch.TypeIndex);
switch (typeInfo.Category)
{
case TypeManager.TypeCategory.ComponentData when UnsafeUtility.IsUnmanaged(componentToWatch.GetManagedType()):
m_ComponentDataDiffers.Add((new ComponentDataDiffer(componentToWatch)));
break;
case TypeManager.TypeCategory.ISharedComponentData:
m_SharedComponentDataDiffers.Add((new SharedComponentDataDiffer(componentToWatch)));
break;
}
}
m_ComponentDataDifferResults = new ComponentDataDiffer.ComponentChanges[m_ComponentDataDiffers.Count];
m_SharedComponentDataDifferResults = new SharedComponentDataDiffer.ComponentChanges[m_SharedComponentDataDiffers.Count];
}
public EntityHierarchyDiffer(IEntityHierarchy hierarchy, int cooldownDurationInMs = 0)
{
m_Hierarchy = hierarchy;
m_Cooldown = new Cooldown(TimeSpan.FromMilliseconds(cooldownDurationInMs));
m_SceneMapper = new SceneMapper();
foreach (var componentType in hierarchy.GroupingStrategy.ComponentsToWatch)
{
if (!ComponentDataDiffer.CanWatch(componentType) && !SharedComponentDataDiffer.CanWatch(componentType))
{
throw new NotSupportedException($" The component {componentType} requested by strategy of type {hierarchy.GroupingStrategy.GetType()} cannot be watched. No suitable differ available.");
}
}
m_Hierarchy = hierarchy;
m_EntityDiffer = new EntityDiffer(hierarchy.World);
foreach (var componentToWatch in hierarchy.GroupingStrategy.ComponentsToWatch)
{
var typeInfo = TypeManager.GetTypeInfo(componentToWatch.TypeIndex);
switch (typeInfo.Category)
{
case TypeManager.TypeCategory.ComponentData when UnsafeUtility.IsUnmanaged(componentToWatch.GetManagedType()):
m_ComponentDataDiffers.Add((new ComponentDataDiffer(componentToWatch)));
break;
case TypeManager.TypeCategory.ISharedComponentData:
m_SharedComponentDataDiffers.Add((new SharedComponentDataDiffer(componentToWatch)));
break;
}
}
m_ComponentDataDifferResults = new ComponentDataDiffer.ComponentChanges[m_ComponentDataDiffers.Count];
m_SharedComponentDataDifferResults = new SharedComponentDataDiffer.ComponentChanges[m_SharedComponentDataDiffers.Count];
m_NewEntities = new NativeList <Entity>(1024, Allocator.Persistent);
m_RemovedEntities = new NativeList <Entity>(1024, Allocator.Persistent);
m_DifferHandles = new NativeArray <JobHandle>(m_ComponentDataDiffers.Count + 1, Allocator.Persistent);
}
