public static List <txUIButton> raycast(Ray ray, SortedDictionary <int, List <txUIButton> > buttonList, int maxCount = 0)
{
bool cast = true;
List <txUIButton> retList = new List <txUIButton>();
RaycastHit hit = new RaycastHit();
foreach (var box in buttonList)
{
int count = box.Value.Count;
for (int i = 0; i < count; ++i)
{
txUIButton button = box.Value[i];
if (button.getHandleInput() && button.Raycast(ray, out hit, 10000.0f))
{
retList.Add(button);
// 如果射线不能穿透当前按钮,或者已经达到最大数量,则不再继续
if (!button.getPassRay() || maxCount > 0 && retList.Count >= maxCount)
{
cast = false;
break;
}
}
}
if (!cast)
{
break;
}
}
return(retList);
}
