Object Pooling for Unity
- Faster in terms of performance than Instantiate/Destroy (Test at the end of README)
- Easy to use
- Easy to integrate with already written spawn systems
- Callbacks OnSpawn & OnDespawn for resseting after object being used
using ToolBox.Pools; using UnityEngine; public class Spawner : MonoBehaviour { [SerializeField] private GameObject _prefab = null; private void Awake() { _prefab.Populate(count: 50); } }Also, you can just put PoolInstaller component on any object on Scene and select which objects you want to prepopulate
using ToolBox.Pools; using UnityEngine; public class Spawner : MonoBehaviour { [SerializeField] private GameObject _prefab = null; public void Spawn() { _prefab.Spawn(transform.position, transform.rotation); // Get object from pool with component _prefab.Spawn<Rigidbody>(transform.position, transform.rotation).isKinematic = true; } }using ToolBox.Pools; using UnityEngine; public class Spawner : MonoBehaviour { [SerializeField] private GameObject _prefab = null; public void Spawn() { var instance = _prefab.Spawn(transform.position, transform.rotation); // Use this only with Instances of Prefab instance.Despawn(); } }using ToolBox.Pools; using UnityEngine; public class Health : MonoBehaviour, IPoolable { [SerializeField] private float _maxHealth = 100f; private float _health = 0f; private void Awake() => _health = _maxHealth; // IPoolable method public void OnSpawn() => _health = _maxHealth; // IPoolable method public void OnDespawn() { } }Creating and destroying 1000 objects.
using Sirenix.OdinInspector; using System.Diagnostics; using UnityEngine; public class Tester : MonoBehaviour { [SerializeField] private GameObject _object = null; [Button] private void Test() { Stopwatch stopwatch = new Stopwatch(); stopwatch.Start(); for (int i = 0; i < 1000; i++) { var instance = Instantiate(_object); Destroy(instance); } stopwatch.Stop(); print($"Milliseconds: {stopwatch.ElapsedMilliseconds}"); } }using Sirenix.OdinInspector; using System.Diagnostics; using ToolBox.Pools; using UnityEngine; public class Tester : MonoBehaviour { [SerializeField] private GameObject _object = null; private void Awake() { _object.Populate(1000); } [Button] private void Test() { Stopwatch stopwatch = new Stopwatch(); stopwatch.Start(); for (int i = 0; i < 1000; i++) { var instance = _object.Spawn(); instance.Despawn(); } stopwatch.Stop(); print($"Milliseconds: {stopwatch.ElapsedMilliseconds}"); } }