Subject:
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RE: Ideas for NQC
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Tue, 9 Mar 2004 11:10:50 GMT
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Reply-To:
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<Marco.Correia@soporcel.%antispam%pt>
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Viewed:
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7668 times
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> For NQC, something that you can add is optional use of
> semi-colon. It's a pain when I do a program as simple as this:
>
> task main()
> {
> On(OUT_A)
> }
>
> and the compiler says:
> line 4: Error: parse error.
> Semi-colon is not necessary if commands are in different
> lines, they are only
> necessary between commands in the same line. I think this is
> not part of the API, it is part of the programming language.
...a bit like NQP (Not Quite Pascal) :D ?
> For BricxCC, I suggest adding automatic correction of command
> case. For example, if you write
> playtone(523,10), instead of showing "undefined function
> 'playtone' in line xx", try to make BricxCC change it into PlayTone.
That would have to be called NQB (Not Quite BASIC) ;)
Ok, now, seriously, this could be usefull for lazzy typists like me, but
remember that C is case sensitive, so, how could BricxCC decide between
PlayTone and a PLAYTONE constant and a playtone variable, not to mention,
some task named Playtone ?
(I know you shouldn't abuse these confusing identifiers, but... heck, blame
it on C authors)
(BTW, I hate C syntax... hmmm... ...and BASIC syntax ...and MFC's)
I don't know if something with C in the name should start breaking C rules.
Why C then ? ...why not NQBasic then ? ...why not using LEGO own
"basic-like" language then ?
I think there's still room for improvment on NQC before converting it to
NQSomething-else.
Speaking of NQSomething-else, I personally, would like to see a RCX language
that would run on a PC (so it could use all PC resources like tcp/ip, Vision
Command and any other peripherals connected to the PC) and it's syntax would
include all RCX downloadable / immediate commands, so I could do something
like:
---8<----Program Running on a PC-----8<-----
set Drone on USB type RCX2 //pBrick
set Rover on COM2 type CyberMaster //pBrick
set Target on COM1 type Spybotics //pBrick
set Vision on USB type VisionCommand //local PC "sensor"
module Foo1
...
a pBrick module
that does
something usefull
a bit like
your average NCQ
program, with task declarations
and a main
...
end module
module Foo2 for RCX2
...
another pBrick module
that also does
something usefull
but can use extra RCX2
specific commands
...
end module
task ListenDrone
...
this could act as a task
running on local pc,
much like a pBrick task
...
end task
...
main
download Foo1 to Drone
download Foo2 to Drone as program 2
download Foo1 to Rover
download Foo1 to Target
while zone(Vision,1)=BRIGHT
case zone(Vision,5)
GREEN:
MessageBox("GO!!!!")
start program 2 on Drone
start Rover
start Target
MessageBox("...gone")
BLUE:
if Ask("Should Rover do Foo3 now ?") then
download Foo3 to Rover
start program 1 on Rover // start remote program
start task ListenDrone // start local task
end if
RED:
stop Rover
stop Target
start program 1 on Drone
MessageBox("Stop some...")
end case
end while
stop all on all
end program
...something like this, with tighter and better syntax...
maybe use this syntax instead:
if download(Foo2,Rover,1) then
start(Rover,1)
else
message("Can't download Foo2 to Rover !!!")
end if
In the end, we could do PC-side programs very pBrick aware, interacting with
both, the PC resources (local peripherals, like Vision Command) and various
pBricks, sending commands, downloading programs, starting/stoping remote
tasks/programs, requesting variable/sensor values and datalog.
Yes, I know this could be done with any modern language, but, there's no
standard way to do it. I think we need a PC-side "NQC" version.
LEGO *should* have done this with RIS 2.0.
After making Vision Command available, LEGO should take the oportunity to
make such an integrate system, IMHO.
mc.
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Message is in Reply To:
 | | Ideas for NQC
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| Hi John, Now that Dave Baum has given you the control under NQC, how will you manage to work both on NQC and on BricxCC??? I recomend the following changes: For NQC, something that you can add is optional use of semi-colon. It's a pain when I do a (...) (20 years ago, 8-Mar-04, to lugnet.robotics.rcx.nqc)
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