Method uiUpdate

plugins/uiSystem.js:157–263

()

        // setup recursive update and render
        // update in reverse order to detect mouse enter/leave
        function uiUpdate()
        {
            if (uiSystem.activeObject && !uiSystem.activeObject.visible)
                uiSystem.activeObject = undefined;

            // reset hover object at start of update
            uiSystem.lastHoverObject = uiSystem.hoverObject;
            uiSystem.hoverObject = undefined;
            
            if (mouseWasPressed(0))
            {
                // exit navigation mode on mouse press
                uiSystem.navigationMode = false;
                uiSystem.navigationObject = undefined;
            }
            if (uiSystem.keyInputObject)
            {
                // handle text input
                uiSystem.activeObject = uiSystem.keyInputObject;
                uiSystem.hoverObject = uiSystem.keyInputObject;
                uiSystem.navigationMode = false;
                uiSystem.navigationObject = undefined;
            }

            // navigation with gamepad/keyboard
            const navigableObjects = uiSystem.getNavigableObjects();
            if (!navigableObjects.length)
                uiSystem.navigationObject = undefined;
            else if (!uiSystem.keyInputObject)
            {
                // unselect object if it is no longer navigable
                if (!navigableObjects.includes(uiSystem.navigationObject))
                    uiSystem.navigationObject = undefined;

                if (!isTouchDevice)
                if (uiSystem.navigationMode && !uiSystem.navigationObject)
                {
                    // select first auto focus object
                    uiSystem.navigationObject = navigableObjects.find(o=>o.navigationAutoSelect);
                }
                
                // navigate with dpad or left stick
                if (!uiSystem.navigationTimer.active())
                {
                    // navigate through list with gamepad or keyboard
                    const direction = sign(uiSystem.getNavigationDirection());
                    if (direction)
                    {
                        let newNavigationObject;
                        if (!uiSystem.navigationObject)
                        {
                            // use auto select object
                            newNavigationObject = navigableObjects.find(o=>o.navigationAutoSelect);

                            if (!newNavigationObject)
                            {
                                // try first or last object
                                const newIndex = direction > 0 ? 0 : navigableObjects.length-1;