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Topic: Teleporters and Bugs?

iluvquake4
The Afflicted

Joined: 12 Dec 2005
Posts: 859

Posted: 05-02-2006 12:37 PM

Why don't machine gun and shotgun bullets go through the teleporter?

Also, I noticed if you shoot a rocket into the teleporter from a distance or at an angle, it won't go through. You have to hit it dead center and upclose. Is that a bug or intentional? Grenades and nail gun projectiles seem to have no problem going through.

Thank you.

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CheapAlert
Demongay

Joined: 19 Mar 2002
Posts: 510

Posted: 05-02-2006 12:47 PM

because they're tracelines.

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Foo
Timed Out

Joined: 02 Aug 2000
Posts: 38066

Posted: 05-02-2006 12:47 PM

It's because they're hitscan (instant hit) shots which are calculted by drawing a straight line out from the gun and finding the first thing it (instantly) collides with.

As opposed to projectiles like RL rockets and plasma, where an item is created in the world and thrown forwards at a set pace.

Of course, it should be possible to calculate hitscan weaponry through a portal - it would be nice if a game adds this in at some point.

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iluvquake4
The Afflicted

Joined: 12 Dec 2005
Posts: 859

Posted: 05-02-2006 12:51 PM

How about the rockets? Are they just exploding behind the teleporter as well as going through?

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o'dium
Eh?

Joined: 25 Mar 2001
Posts: 32049

Posted: 05-02-2006 12:55 PM

Prey lets you shoot any weapon through its teleporters.

So did unreal 1 FYI.

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Foo
Timed Out

Joined: 02 Aug 2000
Posts: 38066

Posted: 05-02-2006 12:59 PM

iluvquake4 wrote:
How about the rockets? Are they just exploding behind the teleporter as well as going through?

The rockets are counted as 'hitting' the teleporter, but obviously don't produce any damage or sound or visuals. The point and angle on the teleporter where the rocket hits is then translated to the teleporter's exit location, and there another object is created which carries on in the same direction and at the same speed.

I guess. I'm not a coder person, but this would seem to be how they would achieve the effect.

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iluvquake4
The Afflicted

Joined: 12 Dec 2005
Posts: 859

Posted: 05-02-2006 01:04 PM

Ah okay, it appears like the rocket is exploding behind the teleporter. Yes/no?

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Foo
Timed Out

Joined: 02 Aug 2000
Posts: 38066

Posted: 05-02-2006 01:08 PM

Regarding your bug... I dunno. There's been some talk of how the quake 4 rockets have a volume associated with them whereas previous quake rockets were just a dot in space. perhaps if the entire size of the rocket doesn't hit the teleporter surface, it doesn't go through?

I don't remember seeing it last time I played but I haven't fired up the latest patch yet.

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because they're tracelines.

How about the rockets? Are they just exploding behind the teleporter as well as going through?

Prey lets you shoot any weapon through its teleporters. So did unreal 1 FYI.

Ah okay, it appears like the rocket is exploding behind the teleporter. Yes/no?

Prey lets you shoot any weapon through its teleporters.

So did unreal 1 FYI.