├── LICENSE.md
├── PoolManager.cs
└── PoolObject.cs


/LICENSE.md:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2016 Sebastian
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/PoolManager.cs:
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 1 | using UnityEngine;
 2 | using System.Collections;
 3 | using System.Collections.Generic;
 4 | 
 5 | public class PoolManager : MonoBehaviour {
 6 | 
 7 | 	Dictionary<int,Queue<ObjectInstance>> poolDictionary = new Dictionary<int, Queue<ObjectInstance>> ();
 8 | 
 9 | 	static PoolManager _instance;
10 | 
11 | 	public static PoolManager instance {
12 | 		get {
13 | 			if (_instance == null) {
14 | 				_instance = FindObjectOfType<PoolManager> ();
15 | 			}
16 | 			return _instance;
17 | 		}
18 | 	}
19 | 
20 | 	public void CreatePool(GameObject prefab, int poolSize) {
21 | 		int poolKey = prefab.GetInstanceID ();
22 | 
23 | 		if (!poolDictionary.ContainsKey (poolKey)) {
24 | 			poolDictionary.Add (poolKey, new Queue<ObjectInstance> ());
25 | 
26 | 			GameObject poolHolder = new GameObject (prefab.name + " pool");
27 | 			poolHolder.transform.parent = transform;
28 | 
29 | 			for (int i = 0; i < poolSize; i++) {
30 | 				ObjectInstance newObject = new ObjectInstance(Instantiate (prefab) as GameObject);
31 | 				poolDictionary [poolKey].Enqueue (newObject);
32 | 				newObject.SetParent (poolHolder.transform);
33 | 			}
34 | 		}
35 | 	}
36 | 
37 | 	public void ReuseObject(GameObject prefab, Vector3 position, Quaternion rotation) {
38 | 		int poolKey = prefab.GetInstanceID ();
39 | 
40 | 		if (poolDictionary.ContainsKey (poolKey)) {
41 | 			ObjectInstance objectToReuse = poolDictionary [poolKey].Dequeue ();
42 | 			poolDictionary [poolKey].Enqueue (objectToReuse);
43 | 
44 | 			objectToReuse.Reuse (position, rotation);
45 | 		}
46 | 	}
47 | 
48 | 	public class ObjectInstance {
49 | 
50 | 		GameObject gameObject;
51 | 		Transform transform;
52 | 
53 | 		bool hasPoolObjectComponent;
54 | 		PoolObject poolObjectScript;
55 | 
56 | 		public ObjectInstance(GameObject objectInstance) {
57 | 			gameObject = objectInstance;
58 | 			transform = gameObject.transform;
59 | 			gameObject.SetActive(false);
60 | 
61 | 			if (gameObject.GetComponent<PoolObject>()) {
62 | 				hasPoolObjectComponent = true;
63 | 				poolObjectScript = gameObject.GetComponent<PoolObject>();
64 | 			}
65 | 		}
66 | 
67 | 		public void Reuse(Vector3 position, Quaternion rotation) {
68 | 			gameObject.SetActive (true);
69 | 			transform.position = position;
70 | 			transform.rotation = rotation;
71 | 
72 | 			if (hasPoolObjectComponent) {
73 | 				poolObjectScript.OnObjectReuse ();
74 | 			}
75 | 		}
76 | 
77 | 		public void SetParent(Transform parent) {
78 | 			transform.parent = parent;
79 | 		}
80 | 	}
81 | }
82 | 


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/PoolObject.cs:
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 1 | using UnityEngine;
 2 | using System.Collections;
 3 | 
 4 | public class PoolObject : MonoBehaviour {
 5 | 
 6 | 	public virtual void OnObjectReuse() {
 7 | 
 8 | 	}
 9 | 
10 | 	protected void Destroy() {
11 | 		gameObject.SetActive (false);
12 | 	}
13 | }
14 | 


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