Detecting a null object, or other solution?

Hiya,

I have a plugin with methods that expect a position object. Sometimes there are events that don't have a position so I tried passing these as null.

In the plugin these result in a NullExceptionError which came as a surprise to me

Basically I want to pass a value that I can detect as empty or null at the other end, the positoin object derives from player.transform.position.

If you need more info please shout - don't have code examples in front of me but can grab them later.

Thanks in advance,


Tony.

 

a Unity Vector3 is a non-nullable value type. You cant send it as null. Would sending Vector3.zero and checking == Vector3.zero on the other end work?

 

Thanks for the replies - gives me some hope this is fixable

The code I have so far is below - first the initiator:

Code:

        void OnPlayerDisconnected(BasePlayer player, string reason) {            /* Player left the server */            string log = player + " left (" + reason + ").";
            string type = "info";
            EventLogger?.Call("AppendToLog", type, log, null);        }

And then the plugin that is being called:

Code:

        void AppendToLog(string type, string log, Vector3 location) {            Int32 nowTimestamp = GetTimestamp();
            log = Uri.EscapeDataString(log);            /* Append to event log */            if (location == null) {                eventLog.Add(new {
                    Timestamp = nowTimestamp,
                    Type = type,
                    Event = log,
                    LocationX = "",
                    LocationY = "",
                    LocationZ = ""
                });            } else {                eventLog.Add(new {
                    Timestamp = nowTimestamp,
                    Type = type,
                    Event = log,
                    LocationX = location.x,
                    LocationY = location.y,
                    LocationZ = location.z
                });            }        }

Can be more specific about how I would implement, or detect the null?


Thanks in advance.

 

Seems to be working now - I tried what EinTime suggested.

Thanks