public static void RegisterCallback(UnityAction callback)
{
int updateOrder = BeforeRenderHelper.GetUpdateOrder(callback);
object obj = BeforeRenderHelper.s_OrderBlocks;
lock (obj)
{
int num = 0;
while (num < BeforeRenderHelper.s_OrderBlocks.Count && BeforeRenderHelper.s_OrderBlocks[num].order <= updateOrder)
{
if (BeforeRenderHelper.s_OrderBlocks[num].order == updateOrder)
{
BeforeRenderHelper.OrderBlock value = BeforeRenderHelper.s_OrderBlocks[num];
value.callback = (UnityAction)Delegate.Combine(value.callback, callback);
BeforeRenderHelper.s_OrderBlocks[num] = value;
return;
}
num++;
}
BeforeRenderHelper.OrderBlock item = default(BeforeRenderHelper.OrderBlock);
item.order = updateOrder;
item.callback = (UnityAction)Delegate.Combine(item.callback, callback);
BeforeRenderHelper.s_OrderBlocks.Insert(num, item);
}
}
public static void UnregisterCallback(UnityAction callback)
{
int updateOrder = BeforeRenderHelper.GetUpdateOrder(callback);
object obj = BeforeRenderHelper.s_OrderBlocks;
lock (obj)
{
int num = 0;
while (num < BeforeRenderHelper.s_OrderBlocks.Count && BeforeRenderHelper.s_OrderBlocks[num].order <= updateOrder)
{
if (BeforeRenderHelper.s_OrderBlocks[num].order == updateOrder)
{
BeforeRenderHelper.OrderBlock value = BeforeRenderHelper.s_OrderBlocks[num];
value.callback = (UnityAction)Delegate.Remove(value.callback, callback);
BeforeRenderHelper.s_OrderBlocks[num] = value;
if (value.callback == null)
{
BeforeRenderHelper.s_OrderBlocks.RemoveAt(num);
}
break;
}
num++;
}
}
}
public static void UnregisterCallback(UnityAction callback)
{
int updateOrder = BeforeRenderHelper.GetUpdateOrder(callback);
List <BeforeRenderHelper.OrderBlock> obj = BeforeRenderHelper.s_OrderBlocks;
lock (obj)
{
int num = 0;
while (num < BeforeRenderHelper.s_OrderBlocks.Count && BeforeRenderHelper.s_OrderBlocks[num].order <= updateOrder)
{
bool flag = BeforeRenderHelper.s_OrderBlocks[num].order == updateOrder;
if (flag)
{
BeforeRenderHelper.OrderBlock orderBlock = BeforeRenderHelper.s_OrderBlocks[num];
orderBlock.callback = (UnityAction)Delegate.Remove(orderBlock.callback, callback);
BeforeRenderHelper.s_OrderBlocks[num] = orderBlock;
bool flag2 = orderBlock.callback == null;
if (flag2)
{
BeforeRenderHelper.s_OrderBlocks.RemoveAt(num);
}
break;
}
num++;
}
}
}