You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
CrowdControl/Assets/AlmostEngine/Shared/Scripts/Singleton.cs

53 lines
1.2 KiB
C#

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