private void RegisterEntity(Entity Entity)
{
if (!EntitiesTracked.Add(Entity))
{
return;
}
foreach (var Component in Entity.Components)
{
var ComponentType = Component.GetType();
foreach (var Filter in GetFiltersForType(ComponentType))
{
Filter.Components.Add(Component);
}
}
Entity.Components.ComponentAdded += Components_ComponentAdded;
Entity.Components.ComponentRemoved += Components_ComponentRemoved;
}
private void UnregisterEntity(Entity Entity)
{
if (!EntitiesTracked.Contains(Entity))
{
return;
}
foreach (var Component in Entity.Components)
{
var ComponentType = Component.GetType();
foreach (var Filter in GetFiltersForType(ComponentType))
{
bool Result = Filter.Components.Remove(Component);
if (!Result)
{
throw new KeyNotFoundException();
}
}
}
EntitiesTracked.Remove(Entity);
Entity.Components.ComponentAdded -= Components_ComponentAdded;
Entity.Components.ComponentRemoved -= Components_ComponentRemoved;
}
