Unity-Singleton-MonoBehaviours

Easy to use, Singleton MonoBehaviours pattern for unity.
Only the SingletonMono.cs in Singeltons folder is needed.
SingletonExtensions.cs will automatically set all instances before the first scene loads.
Works with inheritance.

Usage:

public class ExampleSingleton : SingletonMono<ExampleSingleton>
{
    public int Value { get; private set; }
    protected override void OnInstanceSet()
    {
        Debug.Log("Instance set for SomeClass Singleton");
    }
}
//shared instance base on Inheritance
//everytime a new SomeOtherClass's awake is called it will steal the SomeClass Instance
public class ExampleSingletonInherited : SomeClass
{
    void Start()
    {
        ForceInstance();
    } 
}
// Use SingletonMono<T>.Instance to get the current instance
// Will get ExampleSingletonInherited if it's the instance
public class ClassUsesExampleSingleton : SomeClass
{
    void Start()
    {
        Debug.Log(ExampleSingleton.Instance.Value);
    } 
}

Switch instance using:

SomeClass some = ...;
SomeClass.Instance = some; //set it to null to remove the instance
some.ForceInstance(): //forces this to be the instance class, same as Instance = some

The methods that you can override:

/// <summary>
/// alled when this object is set to Instance of <typeparamref name="T"></typeparamref>
/// </summary>
protected virtual void OnInstanceSet() {} 
/// <summary>
/// Called when this object is no longer the Instance object.
/// </summary>
protected virtual void OnInstanceRemoved() { }