SimplePreload.c

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class SimplePreload
{
    static const int PRELOAD_FRAME_TIME_MS = 100;
    static const int MIN_DURATION_MS = 1000;
    ref LoadingAnim m_LoadingAnim;
    vector m_Position;
    float m_fDuration;
    int m_iMaxDuration;
    
    void SimplePreload() 
    {
        Print("SimplePreload: preload started.", LogLevel.VERBOSE);
    }
    
    void ~SimplePreload() 
    {
        if (m_LoadingAnim)
            m_LoadingAnim.Hide();
        Print("SimplePreload: preload finished (took: " + Math.Round(m_fDuration) + "s).", LogLevel.VERBOSE);
    }
    
    bool Update(float timeSlice)
    {
        m_fDuration += timeSlice;
        
        if (g_Game.IsPreloadFinished() && (m_fDuration >= (MIN_DURATION_MS * 0.001)))
        {
            return true;
        }
        
        if (m_LoadingAnim)
        {
            float progress = Math.Min(m_fDuration / MIN_DURATION_MS * 0.001, 1.0);
            m_LoadingAnim.Update(timeSlice, progress, progress);
        }
        return false;
    }
    
    static SimplePreload Preload(vector position, float radius = 500, int max_duration_ms = 20000)
    {   
        if (g_Game.BeginPreload(g_Game.GetWorld(), position, radius, max_duration_ms / 1000))
        {
            // there is a lot of resoruces to be loaded, show loading anim
            SimplePreload preload = new SimplePreload();
            preload.m_LoadingAnim = g_Game.CreateLoadingAnim(g_Game.GetWorkspace());
            preload.m_LoadingAnim.Show();
            preload.m_iMaxDuration = max_duration_ms;
            preload.m_Position = position;
            return preload;
        }
        
        return null;
    }
};