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AppGameKit Classic Chat / Static Physics Object moving problem?

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nz0
AGK Developer
17
Years of Service
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Joined: 13th Jun 2007
Location: Cheshire,UK
Posted: 16th Oct 2011 02:56
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I have an issue with static physics object which moves when I collide with many other objects.
It looks like a rounding issue (the movement is only a small jitter) but I'd like to check I've not made a mistake here before submitting it as a bug.

I even made the static object a very big mass, but doesn't help.

The same behaviour exist for different bounding polys on the sprite.

My Robotron remake
My I,Robot remake WIP

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Smashton
13
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Joined: 29th Sep 2011
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Posted: 17th Oct 2011 09:30
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It's a bug. You should report it to them.
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baxslash
Valued Member
Bronze Codemaster
17
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Joined: 26th Dec 2006
Location: Duffield
Posted: 17th Oct 2011 16:15
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I've been experiencing the same issue. Definitely a bug I think...

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Paul Johnston
TGC Developer
22
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Joined: 16th Nov 2002
Location: United Kingdom
Posted: 18th Oct 2011 02:42
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This is a side effect of an attempt to reduce flicking in axis aligned sprites that are scrolling across the screen, it snaps the sprite to the nearest pixel. I'll add a command to turn this off per sprite as it is clearly interfering in other cases. For now you can force it off by giving the sprite a very slight angle, say 0.0001 which means it is no longer an axis aligned sprite and so won't be snapped to grid.
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baxslash
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Posted: 18th Oct 2011 10:44
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Thanks for the workaround Paul!

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nz0
AGK Developer
17
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Joined: 13th Jun 2007
Location: Cheshire,UK
Posted: 20th Oct 2011 05:52
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Good news then. So no need to register as a bug?

My Robotron remake
My I,Robot remake WIP
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