Subject:
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Re: FLL not allowing NQC; Mindscript is allowed
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 15 Mar 2005 19:44:49 GMT
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Viewed:
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3645 times
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On Tue, March 15, 2005 12:01 pm, John Hansen said:
> And
> I don't feel angry or even particularly annoyed that FLL doesn't allow using a
> real programming language in its competitions. Just discouraged and frustrated,
> mostly.
So, this is the same argument we've been hearing for the last couple weeks, right?
NQC is the only "Real" programming language that can be used on the RCX (with
standard firmware). If we can't use NQC, I won't participate.
Let me also repeat myself. This is NO different from someone who's good at building
'sheet-metal' robots, coming in and saying, "FLL doesn't allow the use of REAL
hardware in it's competitions."
The hardware knowledge is NOT transferable either. But the concepts for both
hardware and software are.
> Robolab is fine for what it does, I suppose. It's a clever way to generate LASM
> code using lots of little pictures. But don't even try to argue that it teaches
> children good programming skills because it doesn't.
NQC doesn't teach any better programming skills than Robolab. You can create
exactly the same "spaghetti code where you 'jump' whenever you wish" as with
Robolab. The coaches need to teach good programming.
Or, they could use Mindscript, which doesn't allow the use of Goto's.
> | if ((RotationAmount < 50 && loopCount >= 4) ||
> | AmbientTemp < 32 ||
> | Message() == 13)
> | {
> | PlaySound(SOUND_DOUBLE_BEEP);
> | Wait(200);
> | PlaySound(SOUND_DOWN);
> | }
> | else
> | {
> | Wait(400);
> | PlaySound(SOUND_CLICK);
> | }
In all this discussion, this is the first example I've see with respect to why
someone may want to use NQC. Given the restrictions Robolab imposes, it's not hard
to develop an example that is more difficult to code in Robolab. But, it's still
very possible.
I would do it using a flag, like this psudocode:
| set redflag = 0
| if (RotationAmount < 50 && loopCount >= 4) set redflag = 1
| if AmbientTemp < 32 set redflag = 1
| if Message() == 13 set redflag = 1
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| if redflag = 1
| {
| PlaySound(SOUND_DOUBLE_BEEP);
| Wait(200);
| PlaySound(SOUND_DOWN);
| }
| else
| {
| Wait(400);
| PlaySound(SOUND_CLICK);
| }
Of course the logic error in the original example is that the comparison
(AmbientTemp < 32) would more likely be (AmbientTemp <= 32), but that's the problem
with a contrived example.
Steve
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Message has 2 Replies:
 | | Re: FLL not allowing NQC; Mindscript is allowed
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| (...) So this is that same response we've been hearing for the last couple weeks, right? You are trotting out the same responses you did a week ago - you have not replied to my criticisms of those responses - only repeated them. If that's all you (...) (20 years ago, 16-Mar-05, to lugnet.robotics)
| | | Robolab as a tool for teaching programming
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| (...) I apologize for the "doesn't allow using a real programming language" statement. It was clearly false and I realized it immediately after I posted. I didn't want to issue an immediate correction because I hoped that people would ignore it as (...) (20 years ago, 16-Mar-05, to lugnet.robotics, FTX)
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Message is in Reply To:
| | Re: FLL not allowing NQC; Mindscript is allowed
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| (...) That is unfortunate. Robolab requires that kids specify the sound by a number which ranges from 1 to 6 (apparently). No sound name constants can be defined and used to visibly represent the actual sound they want the RCX to play (I guess). The (...) (20 years ago, 15-Mar-05, to lugnet.robotics, FTX)
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