SCR_FadeInOutEffect.c

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class SCR_FadeInOutEffect : SCR_BaseScreenEffect
{
    //Widget
    private ImageWidget                             m_wFadeInOut;
 
    //------------------------------------------------------------------------------------------------
    override void DisplayStartDraw(IEntity owner)
    {
        m_wFadeInOut = ImageWidget.Cast(m_wRoot.FindAnyWidget("FadeOut"));
    }
 
    //------------------------------------------------------------------------------------------------
    void FadeOutEffect(bool fadeDirection, float seconds = 0.35)
    {
        if (seconds <= 0)
            return;
        
        float targetVal;
        if (fadeDirection)
        {
            m_wFadeInOut.SetOpacity(0);
            targetVal = 1;
        }
        else
        {
            m_wFadeInOut.SetOpacity(1);
        }
        
        GetGame().GetCallqueue().CallLater(AnimateWidget.Opacity, 0, false, m_wFadeInOut, targetVal, 1/seconds, true); // this is delayed by frame so there is at least one visible frame of opacity = 1 
    }
};