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53 lines
1.2 KiB
C#
53 lines
1.2 KiB
C#
using UnityEngine;
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namespace AlmostEngine
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{
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/// <summary>
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/// Use the singleton to manage persistent data between scenes.
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/// </summary>
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public abstract class Singleton<T> : MonoBehaviour where T : MonoBehaviour
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{
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public static T m_Instance;
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/// <summary>
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/// Create the singleton instance if needed and call OnSingletonAwake().
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/// </summary>
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private void Awake ()
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{
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if (m_Instance == null) {
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//If I am the first instance, make me the Singleton
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m_Instance = this as T;
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if (transform.parent == null) {
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DontDestroyOnLoad (this.gameObject);
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}
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} else {
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//If a Singleton already exists and you find
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//another reference in scene, destroy it!
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if (this != m_Instance) {
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DestroyImmediate (this.gameObject);
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}
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return;
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}
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OnSingletonAwake ();
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}
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void OnDestroy ()
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{
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if (m_Instance == this) {
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m_Instance = null;
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}
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}
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/// <summary>
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/// This method is called just after the singleton construction.
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/// Override it to perform the initial setup.
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/// </summary>
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protected virtual void OnSingletonAwake ()
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{
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}
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}
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} |