/// <summary>
/// Starts monitoring an attraction item by setting up a location fence and following
/// the activation/range rules. Will call back "activate" and "deactivate" based
/// on these rules.
/// </summary>
/// <param name="ctxt"></param>
/// <param name="actxt"></param>
/// <param name="item"></param>
/// <param name="activateItems"></param>
/// <param name="deactivateItems"></param>
private void MonitorAttractionItem(
ResourceActivationContext ctxt,
ActivatedAttractionContext actxt,
LocationAttractionItemProperties item,
IAttractionItemHandler handler)
{
bool activated = false;
var wasInRange = ctxt.CheckEvent("in_range");
Func <bool> checkAutoplay = () =>
{
var didPlay = ctxt.CheckEvent("open");
return(item.AutoplayBehavior == AttractionRangeAutoplayBehavior.Always ||
item.AutoplayBehavior == AttractionRangeAutoplayBehavior.Once && !didPlay);
};
var autoplay = checkAutoplay();
if (item.RangeAvailability == AttractionRangeAvailability.Always)
{
// Always activate
activated = true;
handler.Activate(actxt.Attraction, autoplay);
}
else
{
if (wasInRange && item.RangeAvailability == AttractionRangeAvailability.InRangeAndAfter)
{
handler.Activate(actxt.Attraction, autoplay);
}
}
var range = item.Range ?? actxt.Range;
if (range != null && actxt.Attraction.Locations != null)
{
m_fencePool.WatchLocations(ctxt.InstanceId, actxt.Attraction.Locations, range,
(locations) =>
{
ctxt.FireEvent("in_range");
ctxt.SetState("in_range");
// In Range
if (!activated || item.RangeAvailability == AttractionRangeAvailability.OnlyInRange)
{
activated = true;
handler.Activate(actxt.Attraction, checkAutoplay());
}
},
() =>
{
ctxt.ClearState("in_range");
// Out of range
if (item.RangeAvailability == AttractionRangeAvailability.OnlyInRange)
{
handler.Deactivate(actxt.Attraction);
}
});
}
else
{
// Items haven't been activated, but there's no range or locations.
// In this case treat the items as "in range" and activate them.
if (!activated)
{
ctxt.FireEvent("in_range");
ctxt.SetState("in_range");
activated = true;
handler.Activate(actxt.Attraction, autoplay);
}
}
}