util.TraceLIne malfunction?

[TomatoSoup]

I'm trying to make a weapon that shoots through walls. I have a trace in the middle of the action that checks if we've hit the same entity so one bullet doesn't hit one entity several times as it passes through.

			Msg(tr.HitPos.x .. " ")
			Msg(tr.StartPos.x .. "\n")
			self.dist = self.dist+1
			trace = {}
			trace.StartPos = tr.HitPos + (1-tr.Fraction)*10*self.dir
			trace.EndPos = tr.StartPos + 10*self.dir
			trace.Mask = MASK_SHOT
			Msg(trace.StartPos.x .. " ")
			Msg(trace.EndPos.x .. "\n")
			tr = util.TraceLine(trace)
			Msg(tr.HitPos.x .. " ")
			Msg(tr.StartPos.x .. "\n")

is the trace. Here's the output for the first iteration, which makes the remainder nonsensical. Importantly, the last pair (the results of the trace) are always 0.

[url]http://i.imgur.com/oXDDwa0.png[/url]

The first tr is determined via the bullet callback. self.dir is calculated by doing tr.HitPos-tr.StartPos, and then normalizing.

Why is a trace always telling me it's hitting and starting at the origin, even when the startpos is nowhere near it?

[Rubat]

[url]http://wiki.garrysmod.com/page/Structures/Trace[/url] Read carefully. There's no such thing as StartPos in the trace table you pass as argument to util.TraceLine, only in trace result

[TomatoSoup]

Welp. Never noticed that before.