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Bitwise question |
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Innula Zenovka
Registered User
Join date: 20 Jun 2007
Posts: 1,825
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10-19-2009 19:09
I can never really get my head round bitwise operators, I fear.
What's the best way of testing "if a is true and b is false"? I'm particularly interested at the moment in knowing if AGENT_IN_AIR is true but AGENT_FLYING is false, but knowing the best way to do this in general would, of course, be ever so helpful. |
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Sindy Tsure
Will script for shoes
Join date: 18 Sep 2006
Posts: 4,103
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10-19-2009 19:47
What's the best way of testing "if a is true and b is false"? That'd be... if (a && !b) ...or, if it's easier to read... if (a == TRUE && b == FALSE) ...or even... if ((a) && (!b)) edit: and... integer flags = llGetAgentInfo (id); if (flags & AGENT_IN_AIR != 0 && flags & AGENT_FLYING == 0) ...is the easiest-reading way to do it, IMO. _____________________
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Ruthven Willenov
Darkness in your light
Join date: 16 Jan 2008
Posts: 965
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10-19-2009 20:01
integer flags = llGetAgentInfo (id); if (flags & AGENT_IN_AIR != 0 && flags & AGENT_FLYING == 0) i'm not in world to check, but i'm pretty sure that's how the zhao 2 checks it so it knows whether to play a flying animation or a hovering animation. how does it check for falling though? _____________________
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Sindy Tsure
Will script for shoes
Join date: 18 Sep 2006
Posts: 4,103
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10-19-2009 20:23
Er.. I think if you're in the air and you're not flying, you're falling.. Dunno - I'm not in-world either..
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Ruthven Willenov
Darkness in your light
Join date: 16 Jan 2008
Posts: 965
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10-19-2009 21:15
Er.. I think if you're in the air and you're not flying, you're falling.. Dunno - I'm not in-world either.. not if you're hovering, i guess if you're not moving and your in the air, then you're hovering, and if you're in the air and moving, but AGENT_FLYING == FALSE then you're falling? _____________________
Dark Heart Emporium
http://www.xstreetsl.com/modules.php?name=Marketplace&MerchantID=133020 want more layers for tattoos, specifically for the head? vote here http://jira.secondlife.com/browse/VWR-1449? llDetectedCollision* Functions similar to touch http://jira.secondlife.com/browse/SVC-3369 |
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Pete Littlebird
Registered User
Join date: 30 Sep 2009
Posts: 44
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10-20-2009 01:02
llGetAnimation returns the animation state ("Standing", "Falling Down", "Flying", Hovering", etc.) rather than the actual animation(s) being played, and may be useful here.
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Innula Zenovka
Registered User
Join date: 20 Jun 2007
Posts: 1,825
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10-20-2009 04:36
llGetAnimation returns the animation state ("Standing", "Falling Down", "Flying", Hovering", etc.) rather than the actual animation(s) being played, and may be useful here. Because, for what I'm trying to do, all I need to test is if I'm in the air and not flying, I was hoping there was a neater way than saying CODE if(llGetAgentInfo(id)&AGENT_IN_AIR){and Sindy has shown me there is. Thank you so much. |