51 lines
2.0 KiB
C#

namespace Syntriax.Engine.Core;
public abstract class Behaviour : BehaviourBase
{
private readonly Event<IUniverseObject, IUniverseObject.EnteredUniverseArguments>.EventHandler delegateEnteredUniverse = null!;
private readonly Event<IUniverseObject, IUniverseObject.ExitedUniverseArguments>.EventHandler delegateExitedUniverse = null!;
public Behaviour()
{
OnInitialized.AddListener(OnInitialize);
OnFinalized.AddListener(OnFinalize);
OnUnassigned.AddListener(OnUnassign);
delegateEnteredUniverse = EnteredUniverse;
delegateExitedUniverse = ExitedUniverse;
}
protected virtual void OnUnassign() { }
protected void OnUnassign(IAssignable assignable) => OnUnassign();
protected virtual void OnInitialize() { }
protected void OnInitialize(IInitializable _)
{
BehaviourController.UniverseObject.OnEnteredUniverse.AddListener(delegateEnteredUniverse);
BehaviourController.UniverseObject.OnExitedUniverse.AddListener(delegateExitedUniverse);
OnInitialize();
if (UniverseObject.IsInUniverse)
EnteredUniverse(UniverseObject, new(Universe));
}
protected virtual void OnFinalize() { }
protected void OnFinalize(IInitializable _)
{
BehaviourController.UniverseObject.OnEnteredUniverse.RemoveListener(delegateEnteredUniverse);
BehaviourController.UniverseObject.OnExitedUniverse.RemoveListener(delegateExitedUniverse);
OnFinalize();
if (UniverseObject.IsInUniverse)
ExitedUniverse(UniverseObject, new(Universe));
}
protected virtual void OnEnteredUniverse(IUniverse universe) { }
protected void EnteredUniverse(IUniverseObject sender, IUniverseObject.EnteredUniverseArguments args) => OnEnteredUniverse(args.Universe);
protected virtual void OnExitedUniverse(IUniverse universe) { }
protected void ExitedUniverse(IUniverseObject sender, IUniverseObject.ExitedUniverseArguments args) => OnExitedUniverse(args.Universe);
}