private void UnbindEnumerator(EntityIterator entityIterator, Group group)
{
if (group == null)
{
return;
}
entityIterator.group = null;
foreach (var fieldInfo in entityIterator.GetType()
.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
var fieldType = fieldInfo.FieldType;
if (fieldType.IsGenericType)
{
var genericType = fieldType.GetGenericTypeDefinition();
if (genericType == typeof(IValue <>))
{
fieldInfo.SetValue(entityIterator, null);
}
}
}
if (entityIterator is IEntityAddedListener addedListener)
{
group.Remove(addedListener);
}
if (entityIterator is IEntityRemovingListener removingListener)
{
group.Remove(removingListener);
}
}
public void BindEnumerator(EntityIterator entityIterator)
{
var includedTypesTmp = new List <ComponentType>();
var excludedTypesTmp = new List <ComponentType>();
foreach (var fieldInfo in entityIterator.GetType()
.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
var fieldType = fieldInfo.FieldType;
if (fieldType.IsGenericType)
{
var genericType = fieldType.GetGenericTypeDefinition();
if (genericType == typeof(IValue <>))
{
var componentType = ComponentType.Create(fieldType.GetGenericArguments()[0]);
includedTypesTmp.Add(componentType);
}
}
}
foreach (var excludeComponentAttribute in GetType().GetCustomAttributes <ExcludeComponentAttribute>())
{
var componentType = ComponentType.Create(excludeComponentAttribute.ComponentType);
excludedTypesTmp.Add(componentType);
}
var internalGroup = GetGroup(includedTypesTmp.ToArray(), excludedTypesTmp.ToArray());
BindEnumerator(entityIterator, internalGroup);
}
private void BindEnumerator(EntityIterator entityIterator, Group internalGroup)
{
entityIterator.ApplyGroup(internalGroup);
if (entityIterator is IEntityAddedListener addedListener)
{
internalGroup.Add(addedListener);
}
if (entityIterator is IEntityRemovingListener removingListener)
{
internalGroup.Add(removingListener);
}
}
public void UnbindEnumerator(EntityIterator entityIterator)
{
UnbindEnumerator(entityIterator, entityIterator.group);
}