private void NotifyDragEmpty(IDropModel drop, IDragModel drag)
{
var dropId = drop.GetInstanceID();
this.MostOverlapDroppingSubject.OnNext(new DragDropModel {
Drop = null, Drag = drag
});
this.DropId2DragSubjectMap.GetOrSet(dropId, () => new Subject <IDragModel>()).OnNext(null);
}
public void Drag(IDropModel drop, IDragModel drag)
{
var dropId = drop.GetInstanceID();
var dragId = drag.GetInstanceID();
var overlapArea = drop.Collider2D.CalcOverlapArea(drag.Collider2D);
this.DropId2DropMap[dropId] = drop;
this.DragId2DropId2AreaMap.GetOrSet(dragId, () => new Dictionary <int, float>())[dropId] = overlapArea;
this.NotifyDrag(drop, drag);
}
private void NotifyDrag(IDropModel drop, IDragModel drag)
{
var dropId = drop.GetInstanceID();
var dragId = drag.GetInstanceID();
// NOTE: drop数がおおいと遅いかも
var mostOverlapDropColliderId = this.DragId2DropId2AreaMap[dragId].FindMaxOrDefault(it => it.Value).Key;
var mostOverlapDropCollider = this.DropId2DropMap[mostOverlapDropColliderId];
this.MostOverlapDroppingSubject.OnNext(new DragDropModel {
Drop = mostOverlapDropCollider, Drag = drag
});
this.DropId2DragSubjectMap.GetOrSet(dropId, () => new Subject <IDragModel>()).OnNext(drag);
}
public void DragOut(IDropModel drop, IDragModel drag)
{
var dropId = drop.GetInstanceID();
var dragId = drag.GetInstanceID();
this.DropId2DropMap.Remove(dropId);
this.DragId2DropId2AreaMap.GetOrSet(dragId, () => new Dictionary <int, float>()).Remove(dropId);
if (this.DragId2DropId2AreaMap[dragId].Count <= 0)
{
this.NotifyDragEmpty(drop, drag);
}
else
{
this.NotifyDrag(drop, drag);
}
}
public IObservable <IDragModel> GetDraggingAsObservable(IDropModel drop)
{
return(this.DropId2DragSubjectMap.GetOrSet(drop.GetInstanceID(), () => new Subject <IDragModel>()));
}