Computer Science Canada Is it possible to have code running in the backround? |
| Author: | rss14 [ Thu Jun 05, 2008 3:49 pm ] |
| Post subject: | Is it possible to have code running in the backround? |
I need a loop to continuously be running in the background, while the program plays. Is that possible? |
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| Author: | SNIPERDUDE [ Thu Jun 05, 2008 3:57 pm ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
look it up in the Turing Walkthrough about procedures |
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| Author: | rss14 [ Thu Jun 05, 2008 4:00 pm ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
Thank you for the link. |
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| Author: | rss14 [ Thu Jun 05, 2008 5:08 pm ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
I read the tutorial, but I am a bit confused. My program uses parallelput to give output to LEDs in order to resemble a traffic intersection. However, I need to add a crossing light, and a switch. When parallelget(64) = 1, then I put that into a variable: loop switchpressed := parallelget if ((switchpressed div 128) mod 2) = 1 then switchstandby = true end if end loop However, the program just continues this loop, which i want running in the backround, and ignores the rest of the code (which parralelputs the LEDs (also a loop) ) |
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| Author: | rss14 [ Thu Jun 05, 2008 5:51 pm ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
procedure buttonpressed switchpressed := parallelget if ((switchpressed div 128) mod 2) = 1 then switchstandby := true end if end buttonpressed loop buttonpressed parallelput (33) cancross := false delay (5000) buttonpressed parallelput (9) cancross := false delay (2000) buttonpressed if switchstandby = true then parallelput (82) else parallelput (18) end if cancross := true delay (5000) buttonpressed parallelput (6) cancross := false delay (2000) end loop This is my revised code. . . however, the LED only turns on if I hold the button, so when buttonpressed runs, it find the button to be 1 . . . I can't find a way to have button pressed run for an infinite amount of time, without disturbing the loop of the traffic lights. . . |
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| Author: | rss14 [ Thu Jun 05, 2008 7:56 pm ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
Nvm, i got help from a friend. I made a process so the thing will run in the background. |
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| Author: | Tony [ Thu Jun 05, 2008 8:22 pm ] |
| Post subject: | Re: RE:Is it possible to have code running in the backround? |
rss14 @ Thu Jun 05, 2008 7:56 pm wrote: Nvm, i got help from a friend.
Not much of "help" if it's the wrong solution. A single frame of your loop takes 14 seconds to complete. So it all works, for the most part, correctly. Just very slowly. Take out the delays. |
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| Author: | Insectoid [ Thu Jun 05, 2008 8:35 pm ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
Just so I can learn, what does parallelput do? |
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| Author: | Tony [ Thu Jun 05, 2008 8:52 pm ] |
| Post subject: | Re: RE:Is it possible to have code running in the backround? |
insectoid @ Thu Jun 05, 2008 8:35 pm wrote: what does parallelput do?
the bit-pattern encoding the integer argument sets the high/low pins on the parallel port. It requires some pretty old hardware and some cut-up cables, but it's an easy way to hooked up to electronic components such as 5v motors and LEDs. |
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| Author: | Insectoid [ Fri Jun 06, 2008 9:22 am ] |
| Post subject: | RE:Is it possible to have code running in the backround? |
Oh, so that's what I'm going to be using with my LED binary conversion project I guess... |
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