Merge remote-tracking branch 'upstream/main' into main

UOP1_Project/.gitignore

 # Crashlytics generated file
 crashlytics-build.properties
 
+# Individual Package settings that can safely be ignored
+ProjectSettings/Packages/com.unity.probuilder/Settings.json

UOP1_Project/Assets/LocalPoolTester.cs

+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class LocalPoolTester : MonoBehaviour
+{
+	[SerializeField]
+	private PoolableParticle _prefab = default;
+	[SerializeField]
+	private int _initialPoolSize = 5;
+
+	private ParticlePoolSO _pool;
+	private ParticleFactorySO _factory;
+
+	private IEnumerator Start()
+    {
+		_factory = ScriptableObject.CreateInstance<ParticleFactorySO>();
+		_factory.Prefab = _prefab;
+		_pool = ScriptableObject.CreateInstance<ParticlePoolSO>();
+		_pool.name = gameObject.name;
+		_pool.Factory = _factory;
+		_pool.InitialPoolSize = _initialPoolSize;
+		List<PoolableParticle> particles = _pool.Request(10) as List<PoolableParticle>;
+		foreach (PoolableParticle particle in particles)
+		{
+			particle.transform.position = Random.insideUnitSphere * 5f;
+			particle.Play();
+		}
+		yield return new WaitForSecondsRealtime(5f);
+		_pool.Return(particles);
+	}
+
+}

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UOP1_Project/Assets/Scripts/Factory/FactorySO.cs

+using UnityEngine;
+
+namespace UOP1.Factory
+{
+	/// <summary>
+	/// Implements the IFactory interface for non-abstract types.
+	/// </summary>
+	/// <typeparam name="T">Specifies the non-abstract type to create.</typeparam>
+	public abstract class FactorySO<T> : ScriptableObject, IFactory<T> where T : new()
+	{
+		public virtual T Create()
+		{
+			return new T();
+		}
+	}
+}

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UOP1_Project/Assets/Scripts/Factory/ComponentFactorySO.cs

+using UnityEngine;
+
+namespace UOP1.Factory
+{
+	/// <summary>
+	/// Implements the IFactory interface for Component types.
+	/// </summary>
+	/// <typeparam name="T">Specifies the component to create.</typeparam>
+	public abstract class ComponentFactorySO<T> : ScriptableObject, IFactory<T> where T : Component
+	{
+		public abstract T Prefab
+		{
+			get;
+			set;
+		}
+
+		public virtual T Create()
+		{
+			return Instantiate(Prefab);
+		}
+	}
+}

UOP1_Project/Assets/Scripts/Factory/IFactory.cs

+namespace UOP1.Factory
+{
+	/// <summary>
+	/// Represents a factory.
+	/// </summary>
+	/// <typeparam name="T">Specifies the type to create.</typeparam>
+	public interface IFactory<T>
+	{
+		T Create();
+	}
+}

UOP1_Project/Assets/Scripts/Pool/ComponentPool.cs

+using UnityEngine;
+
+namespace UOP1.Pool
+{
+	/// <summary>
+	/// Implements a Pool for Component types.
+	/// </summary>
+	/// <typeparam name="T">Specifies the component to pool.</typeparam>
+	public abstract class ComponentPool<T> : PoolSO<T> where T : Component, IPoolable
+	{
+		public abstract int InitialPoolSize { get; set; }
+		private GameObject _poolRootObject;
+
+		private void InitializePool()
+		{
+			_poolRootObject = new GameObject(name);
+			DontDestroyOnLoad(_poolRootObject);
+			for (int i = 0; i < InitialPoolSize; i++)
+			{
+				_available.Push(Create());
+			}
+		}
+
+		public override T Request()
+		{
+			if (_poolRootObject == null)
+			{
+				InitializePool();
+			}
+			return base.Request();
+		}
+
+		public override void Return(T member)
+		{
+			if (_poolRootObject == null)
+			{
+				InitializePool();
+			}
+			base.Return(member);
+		}
+
+		protected override T Create()
+		{
+			T newMember = base.Create();
+			newMember.transform.SetParent(_poolRootObject.transform);
+			return newMember;
+		}
+
+		public override void OnDisable()
+		{
+			base.OnDisable();
+#if UNITY_EDITOR
+			DestroyImmediate(_poolRootObject);
+#else
+			Destroy(_poolRootObject);
+#endif
+		}
+	}
+}

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UOP1_Project/Assets/Scripts/Pool/IPool.cs

+namespace UOP1.Pool
+{
+	/// <summary>
+	/// Represents a collection that pools objects of T.
+	/// </summary>
+	/// <typeparam name="T">Specifies the type of elements in the pool.</typeparam>
+	public interface IPool<T>
+	{
+		T Request();
+		void Return(T member);
+	}
+}

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UOP1_Project/Assets/Scripts/Pool/PoolSO.cs

+using UOP1.Factory;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace UOP1.Pool
+{
+	/// <summary>
+	/// A generic pool that generates members of type T on-demand via a factory.
+	/// </summary>
+	/// <typeparam name="T">Specifies the type of elements to pool.</typeparam>
+	public abstract class PoolSO<T> : ScriptableObject, IPool<T> where T : IPoolable
+	{
+		protected readonly Stack<T> _available = new Stack<T>();
+		public abstract IFactory<T> Factory { get; set; }
+
+		protected virtual T Create()
+		{
+			return Factory.Create();
+		}
+
+		public virtual T Request()
+		{
+			T member = _available.Count > 0 ? _available.Pop() : Create();
+			member.OnRequest();
+			return member;
+		}
+
+		public virtual IEnumerable<T> Request(int num = 1)
+		{
+			List<T> members = new List<T>(num);
+			for (int i = 0; i < num; i++)
+			{
+				members.Add(Request());
+			}
+			return members;
+		}
+
+		public virtual void Return(T member)
+		{
+			member.OnReturn(() =>
+			{
+				_available.Push(member);
+			});
+		}
+
+		public virtual void Return(IEnumerable<T> members)
+		{
+			foreach (T member in members)
+			{
+				Return(member);
+			}
+		}
+
+		public virtual void OnDisable()
+		{
+			_available.Clear();
+		}
+	}
+}

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UOP1_Project/Assets/Scripts/Pool/Example/ParticlePoolSO.cs

+using UnityEngine;
+using UOP1.Pool;
+using UOP1.Factory;
+
+[CreateAssetMenu(fileName = "NewParticlePool", menuName = "Pool/Particle Pool")]
+public class ParticlePoolSO : ComponentPool<PoolableParticle>
+{
+	[SerializeField]
+	private ParticleFactorySO _factory;
+	[SerializeField]
+	private int _initialPoolSize;
+
+	public override IFactory<PoolableParticle> Factory
+	{
+		get
+		{
+			return _factory;
+		}
+		set
+		{
+			_factory = value as ParticleFactorySO;
+		}
+	}
+
+	public override int InitialPoolSize
+	{
+		get
+		{
+			return _initialPoolSize;
+		}
+		set
+		{
+			_initialPoolSize = value;
+		}
+	}
+}
+

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UOP1_Project/Assets/Scripts/Pool/Example/PoolableParticle.cs

+using UOP1.Pool;
+using System;
+using System.Collections;
+using UnityEngine;
+
+public class PoolableParticle : MonoBehaviour, IPoolable
+{
+	[SerializeField]
+	private ParticleSystem _particleSystem = default;
+
+	public void OnRequest()
+	{
+		gameObject.SetActive(true);
+	}
+
+	public void Play()
+	{
+		_particleSystem.Play();
+	}
+
+	public void OnReturn(Action onReturned)
+	{
+		StartCoroutine(DoReturn(onReturned));
+	}
+
+	IEnumerator DoReturn(Action onReturned)
+	{
+		if (_particleSystem.isPlaying)
+		{
+			yield return new WaitForSeconds(_particleSystem.main.duration - (_particleSystem.time % _particleSystem.main.duration));
+			_particleSystem.Stop();
+		}
+		yield return new WaitUntil(() => _particleSystem.particleCount == 0);
+		onReturned.Invoke();
+		gameObject.SetActive(false);
+	}
+}

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UOP1_Project/Assets/Scripts/Pool/Example/ParticleFactorySO.cs

+using UnityEngine;
+using UOP1.Factory;
+
+[CreateAssetMenu(fileName = "NewParticleFactory", menuName = "Factory/Particle Factory")]
+public class ParticleFactorySO : ComponentFactorySO<PoolableParticle>
+{
+	[SerializeField]
+	private PoolableParticle _prefab = default;
+
+	public override PoolableParticle Prefab
+	{
+		get
+		{
+			return _prefab;
+		}
+		set
+		{
+			_prefab = value;
+		}
+	}
+}
+

UOP1_Project/Assets/Scripts/Pool/Example/PoolTester.cs

+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class PoolTester : MonoBehaviour
+{
+	[SerializeField]
+	private ParticlePoolSO _pool = default;
+
+	private IEnumerator Start()
+	{
+		List<PoolableParticle> particles = _pool.Request(10) as List<PoolableParticle>;
+		foreach (PoolableParticle particle in particles)
+		{
+			particle.transform.position = Random.insideUnitSphere * 5f;
+			particle.Play();
+		}
+		yield return new WaitForSeconds(5f);
+		_pool.Return(particles);
+	}
+}

UOP1_Project/Assets/Scripts/Pool/IPoolable.cs

+using System;
+
+namespace UOP1.Pool
+{
+	/// <summary>
+	/// Represents an object that can be pooled.
+	/// </summary>
+	public interface IPoolable
+	{
+		void OnRequest();
+		void OnReturn(Action onReturned);
+	}
+}