public override bool HandlePropertyValuesChanged(
IReadOnlyList <IPropertyValueChange> changes, TEntity entity, IEntityGroup <TEntity> group)
{
if (base.HandlePropertyValuesChanged(changes, entity, group))
{
return(true);
}
Component componentUsed = null;
for (var i = 0; i < changes.Count; i++)
{
var change = changes[i];
if (_sortValueGetter.PropertyUsed(change.ChangedComponent.ComponentId, change.ChangedPropertyName))
{
componentUsed = change.ChangedComponent;
break;
}
// The component might have been removed by the previous change listener
if (!entity.HasComponent(change.ChangedComponent.ComponentId))
{
return(true);
}
}
if (componentUsed == null)
{
return(false);
}
if (!KeyValueGetter.TryGetKey(entity, new IPropertyValueChange[0], getOldValue: false, out var key))
{
return(true);
}
var entities = GetOrAddEntities(key);
if (_sortValueGetter.TryGetKey(entity, changes, getOldValue: true, out var oldSortKey))
{
entities.Remove(oldSortKey);
}
if (_sortValueGetter.TryGetKey(entity, changes, getOldValue: false, out var newSortKey))
{
entities.Add(newSortKey, entity);
}
if (entities.Count == 0)
{
Index.Remove(key);
}
return(true);
}
public void HandleEntityRemoved(
TEntity entity, Component removedComponent, IEntityGroup <TEntity> group)
{
if (KeyValueGetter.TryGetKey(
entity,
new IPropertyValueChange[] { new PropertyValueChange <object>(removedComponent) },
getOldValue: false,
out var keyValue))
{
TryRemoveEntity(keyValue, entity, removedComponent);
}
}
public virtual bool HandlePropertyValuesChanged(
IReadOnlyList <IPropertyValueChange> changes, TEntity entity, IEntityGroup <TEntity> group)
{
Component componentUsed = null;
for (var i = 0; i < changes.Count; i++)
{
var change = changes[i];
if (KeyValueGetter.PropertyUsed(change.ChangedComponent.ComponentId, change.ChangedPropertyName))
{
componentUsed = change.ChangedComponent;
break;
}
// The component might have been removed by the previous change listener
if (!entity.HasComponent(change.ChangedComponent.ComponentId))
{
return(true);
}
}
if (componentUsed == null)
{
return(false);
}
if (KeyValueGetter.TryGetKey(entity, changes, getOldValue: true, out var oldKey))
{
TryRemoveEntity(oldKey, entity, componentUsed);
}
if (KeyValueGetter.TryGetKey(entity, changes, getOldValue: false, out var newKey))
{
TryAddEntity(newKey, entity, componentUsed);
}
return(true);
}
public bool ContainsEntity(TEntity entity) => KeyValueGetter.TryGetKey(entity, new IPropertyValueChange[0], getOldValue: false, out var referencedId) && ReferencedGroup.ContainsEntity(referencedId);