80 lines
2.4 KiB
C#
80 lines
2.4 KiB
C#
|
using System;
|
||
|
using System.Collections.Generic;
|
||
|
|
||
|
using Syntriax.Engine.Core.Abstract;
|
||
|
|
||
|
namespace Syntriax.Engine.Core;
|
||
|
|
||
|
public class BehaviourCacher<T> : IAssignableGameManager where T : IBehaviour
|
||
|
{
|
||
|
public Action<IAssignable>? OnUnassigned { get; set; } = null;
|
||
|
public Action<IAssignableGameManager>? OnGameManagerAssigned { get; set; } = null;
|
||
|
|
||
|
public Action<BehaviourCacher<T>, T>? OnCached { get; set; } = null;
|
||
|
public Action<BehaviourCacher<T>, T>? OnUncached { get; set; } = null;
|
||
|
|
||
|
private readonly List<T> _behaviours = new(32);
|
||
|
|
||
|
public IReadOnlyList<T> Behaviours => _behaviours;
|
||
|
public IGameManager GameManager { get; private set; } = null!;
|
||
|
|
||
|
public BehaviourCacher() { }
|
||
|
public BehaviourCacher(IGameManager gameManager) => Assign(gameManager);
|
||
|
|
||
|
private void OnGameObjectRegistered(GameManager manager, IGameObject gameObject)
|
||
|
{
|
||
|
gameObject.BehaviourController.OnBehaviourAdded += OnBehaviourAdded;
|
||
|
gameObject.BehaviourController.OnBehaviourRemoved += OnBehaviourRemoved;
|
||
|
}
|
||
|
|
||
|
private void OnGameObjectUnregistered(GameManager manager, IGameObject gameObject)
|
||
|
{
|
||
|
gameObject.BehaviourController.OnBehaviourAdded -= OnBehaviourAdded;
|
||
|
gameObject.BehaviourController.OnBehaviourRemoved -= OnBehaviourRemoved;
|
||
|
}
|
||
|
|
||
|
private void OnBehaviourAdded(IBehaviourController controller, IBehaviour behaviour)
|
||
|
{
|
||
|
if (behaviour is not T tBehaviour)
|
||
|
return;
|
||
|
|
||
|
_behaviours.Add(tBehaviour);
|
||
|
OnCached?.Invoke(this, tBehaviour);
|
||
|
}
|
||
|
|
||
|
private void OnBehaviourRemoved(IBehaviourController controller, IBehaviour behaviour)
|
||
|
{
|
||
|
if (behaviour is not T tBehaviour)
|
||
|
return;
|
||
|
|
||
|
if (!_behaviours.Remove(tBehaviour))
|
||
|
return;
|
||
|
|
||
|
OnUncached?.Invoke(this, tBehaviour);
|
||
|
}
|
||
|
|
||
|
public bool Assign(IGameManager gameManager)
|
||
|
{
|
||
|
if (GameManager is not null)
|
||
|
return false;
|
||
|
|
||
|
gameManager.OnGameObjectRegistered += OnGameObjectRegistered;
|
||
|
gameManager.OnGameObjectUnRegistered += OnGameObjectUnregistered;
|
||
|
|
||
|
GameManager = gameManager;
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
public bool Unassign()
|
||
|
{
|
||
|
if (GameManager is null)
|
||
|
return false;
|
||
|
|
||
|
GameManager.OnGameObjectRegistered -= OnGameObjectRegistered;
|
||
|
GameManager.OnGameObjectUnRegistered -= OnGameObjectUnregistered;
|
||
|
|
||
|
GameManager = null!;
|
||
|
return true;
|
||
|
}
|
||
|
}
|