DoOnce.c

См. документацию.

class DoOnce
{
    protected static ref map<string, bool> m_Done;
 
    protected static void Ensure()
    {
        if (!m_Done)
            m_Done = new map<string, bool>();
    }
 
    // Returns true only on the first successful execution during this runtime.
    static bool Run(string key, Class target, string fnName, Param params = null)
    {
        Ensure();
 
        if (!key || !target || !fnName)
            return false;
 
        if (m_Done.Contains(key))
            return false;
 
        m_Done.Set(key, true);
 
        // Call any method on any object by name
        bool called = g_Game.GameScript.CallFunctionParams(target, fnName, null, params);
 
        return called;
    }
 
    static bool HasRun(string key)
    {
        Ensure();
 
        return m_Done.Contains(key);
    }
    
    static void Clear(string key)
    {
        Ensure();
 
        if (m_Done.Contains(key))
            m_Done.Remove(key);
    }
}