class ScriptInvoker

ScriptInvoker Class provide list of callbacks
usage:

class Player
{
	ref ScriptInvoker m_DeathInvoker	= new ScriptInvoker();

	void OnKilled()
	{
		m_DeathInvoker.Invoke(this);
	}
}

void LogPlayerDeath(p)
{
	Print("RIP " + p);
}

class Game
{
	void RemovePlayer(Player p)
	{
	}

	void GameOver()
	{
	}
}

void OnPlayerSpaned(Player p)
{
	Game game = g_Game;
	p.m_DeathInvoker.Insert(LogPlayerDeath);
	p.m_DeathInvoker.Insert(game.RemovePlayer);
	p.m_DeathInvoker.Insert(game.GameOver);
}