SCR_CompassUIComponent.c

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class SCR_CompassUIComponent: MenuRootSubComponent
{
    [Attribute(defvalue: "0.8", uiwidget: UIWidgets.Slider, params: "0 1 0.01")]
    protected float m_fLabelsDistance;
    
    [Attribute()]
    protected string m_sTextureWidgetName;
    
    [Attribute()]
    protected string m_sEastWidgetName;
    
    [Attribute()]
    protected string m_sSouthWidgetName;
    
    [Attribute()]
    protected string m_sWestWidgetName;
    
    [Attribute()]
    protected string m_sNorthWidgetName;
    
    protected BaseWorld m_World;
    protected ImageWidget m_TextureWidget;
    protected ref map<Widget, float> m_Labels = new map<Widget, float>;
    
    void UpdateRotation(float timeSlice)
    {
        vector transform[4];
        m_World.GetCurrentCamera(transform);
        float yaw = -Math3D.MatrixToAngles(transform)[0];
        m_TextureWidget.SetRotation(yaw);
        
        float yawRad = yaw * Math.DEG2RAD;
        foreach (Widget label, float angle: m_Labels)
        {
            FrameSlot.SetPos(
                label,
                m_fLabelsDistance * Math.Cos(yawRad + angle),
                m_fLabelsDistance * Math.Sin(yawRad + angle)
            );
        }
    }
    
    override void HandlerAttachedScripted(Widget w)
    {
        MenuRootBase menu = GetMenu();
        if (!menu)
            return;
        
        m_World = GetGame().GetWorld();
        if (!m_World)
            return;
        
        m_TextureWidget = ImageWidget.Cast(w.FindAnyWidget(m_sTextureWidgetName));
        if (!m_TextureWidget)
            return;
        
        m_Labels.Insert(w.FindAnyWidget(m_sEastWidgetName), 0);
        m_Labels.Insert(w.FindAnyWidget(m_sSouthWidgetName), Math.PI * 0.5);
        m_Labels.Insert(w.FindAnyWidget(m_sWestWidgetName), Math.PI);
        m_Labels.Insert(w.FindAnyWidget(m_sNorthWidgetName), Math.PI * 1.5);
        
        m_fLabelsDistance *= 0.5 * FrameSlot.GetSizeY(w);
        
        menu.GetOnMenuUpdate().Insert(UpdateRotation);
    }
    override void HandlerDeattached(Widget w)
    {
        MenuRootBase menu = GetMenu();
        if (menu)
        {
            menu.GetOnMenuUpdate().Remove(UpdateRotation);
        }
    }
};