public void UnregisterAngleArea(ILeaveAngleAreaObserver ob, AngleArea area)
{
foreach (var p in Areas)
{
if (p.Key != ob || p.Value != area)
{
continue;
}
Areas.Remove(p);
break;
}
}
public void RegisterAngleArea(ILeaveAngleAreaObserver ob, AngleArea area)
{
foreach (var p in Areas)
{
if (p.Key == ob && p.Value == area) //已经注册过
{
return;
}
}
var pair = new KeyValuePair <ILeaveAngleAreaObserver, AngleArea>(ob, area);
Areas.Add(pair);
}