/// <summary>
/// Finds all entities in a registry that have a component of the specified type attached to them.
/// </summary>
public static IEnumerable <IEntityRecord> FindAllWithComponent <TComponent>(IEntityRecordCollection registry)
where TComponent : class, IComponent
{
return(registry != null?
registry.Where(entity =>
entity.HasComponent <TComponent>()) :
null);
}
/// <summary>
/// Creates a new entity with the specified name and registers it to the registry.
/// </summary>
public EntityRecord(string name, IEntityRecordCollection registry)
: this()
{
Name = name;
Registry = registry;
_mediator = new Mediator();
_children = new List <IEntityRecord>();
}
/// <summary>
/// Creates and registers an entity in the specified registry.
/// </summary>
public static IEntityRecord Create(string name, IEntityRecordCollection registry)
{
IEntityRecord record = new EntityRecord(name, registry);
/// Ensure that the entity gets registered.
record.Synchronize();
return(record);
}
/// <summary>
/// Creates and registers a new entity in the specified registry. The specified components will also be attached to it.
/// </summary>
public static IEntityRecord Create(string name, IEntityRecordCollection registry, params IComponent[] components)
{
IEntityRecord record = Create(name, registry);
foreach (IComponent component in components)
{
record.Add(component);
}
return(record);
}
/// <summary>
/// Attempts to find the entity that matches the specified name in a registry. Returns `null` if none was found.
/// </summary>
public static IEntityRecord Find(string name, IEntityRecordCollection registry)
{
IEntityRecord record = new EntityRecord(name, registry);
if (!registry.Contains(record))
{
record = null;
}
return(record);
}
/// <summary>
/// Broadcasts a message to every single component that is currently attached to an entity in the specified registry.
/// </summary>
public static void Broadcast <TData>(IEntityRecordCollection registry, string message, TData data)
{
if (registry == null)
{
return;
}
foreach (IEntityRecord record in registry)
{
record.Notify(message, data);
}
}
public static IEntityRecord CreateChild(this IEntityRecord parent, string name, IEntityRecordCollection registry, params IComponent[] components)
{
IEntityRecord record = Entity.Create(name, registry, components);
record.Parent = record;
return(record);
}
public static IEntityRecord CreateChild(this IEntityRecord parent, string name, IEntityRecordCollection registry)
{
IEntityRecord record = Entity.Create(name, registry);
record.Parent = record;
return(record);
}
/// <summary>
/// Creates a new entity with the specified name and registers it to the registry.
/// </summary>
public EntityRecord(string name, IEntityRecordCollection registry)
: this()
{
Name = name;
Registry = registry;
}