`if (IsValidSurvivor(newtarget) && IsPlayerAlive(newtarget) && !IsClientIncapped(client) &&!IsClientPinned(client) && newtarget != exclude_client)` https://github.com/GlowingTree880/L4D2_LittlePlugins/blob/main/Ai_HardSi/treeutil.sp#L228 后面两个成client了