Countdown question

Ad Mulders · **Posted:** November 28th, 2017, 8:15 pm

I am working on a basketball scoreboard and therefor i need to use multiple countdowns
simultaneously. Now i use a ticker that counts down, but when i activate a second countdown ticker
they run always in sync. What i need is 2 tickers that count down separate.
Is my ticker action not the right way to do this?

Ad

mackavi · **Posted:** November 29th, 2017, 9:55 am

No, one ticker should be fine.

You'll need two variables - one for each countdown and a control variable for each of those variables to handle stopping, starting, checking.

The ticker code looks something like this:

Code:

if (myControlVariableOne == true) {
   myCountdownVariableOne--;
   if (myCountdownVariableOne == 0){
      myControlVariableOne = false //stop countdown
      //do something here now that countdown one is zero.
      Debug.trace("hey CD1 you reached zero")
   }
}

if (myControlVariableTwo == true) {
   myCountdownVariableTwo--;
   if (myCountdownVariableTwo == 0){
      myControlVariableTwo = false //stop countdown
      //do something here now that countdown one is zero.
      Debug.trace("hey CD2 you reached zero")
   }
}

myControlVariable - One & Two will initially be set to false.

myCountDownVariable - One & Two will be set to the starting values for your countdown.

</mack>

Ad Mulders · **Posted:** November 29th, 2017, 11:03 pm

Thanks Mac,
Can you tell how to get it work because i don;t know how to get it run.

Ad

mackavi · **Posted:** December 1st, 2017, 6:00 pm

Here's an example:

download from: http://www.live.interaktiv.co.uk/?section=files
Use code: dual-countdown@digitalgrapevine.info

</mack>

Ad Mulders · **Posted:** December 1st, 2017, 9:26 pm

Thanks Mack for the example.

Unfortunately the result is not yet what I need.
In my first test with 2 tickers they also ran synchronously and they have to countdown independently.

I have an example on youtube where you cn see the 2 counters do not synchronize the countdown because they are started independently of each other.
View the countdown clocks on the right side of the title bar at the bottom of the screen.
That was the reason that I used 2 tickers, but apparently they always want to run in sync. :-)

https://www.youtube.com/watch?v=GeGuKZt ... e&t=43m50s

mackavi · **Posted:** December 1st, 2017, 10:44 pm

Try this:

Code:

if (myControlVariableOne == true) {
   myTickerFractionOne++
   if (myTickerFractionOne == 100) {
         myCountdownVariableOne--;
      myTickerFractionOne = 0;
   }
   if (myCountdownVariableOne == 0){
      myControlVariableOne = false //stop countdown
      //do something here now that countdown one is zero.
      Debug.trace("hey CD1 you reached zero")
   }
}


if (myControlVariableTwo == true) {
   myTickerFractionTwo++
   if (myTickerFractionTwo == 100) {
         myCountdownVariableTwo--;
      myTickerFractionTwo = 0;
   }
   if (myCountdownVariableTwo == 0){
      myControlVariableTwo = false //stop countdown
      //do something here now that countdown one is zero.
      Debug.trace("hey CD2 you reached zero")
   }
}

And add two publication variables myTickerFractionOne & myTickerFractionTwo both with number values sets to zero.

And set the ticker speed to 0.01.

</mack>

Ad Mulders · **Posted:** December 2nd, 2017, 8:35 am

Great Mac, this works.
One thing i found out, when the myTickerFractionOne == 100 then he is running way to slow. 60 countdown seconds took 1:39
on my hand stopwatch and stopwatch on my iPhone.

I tested it on 2 laptops and set the value to 64 and that works fine.
It's not complete accurate but maybe you have a better solution to get it right.Is it better to change the ticker speed from 0.01 to another value?

Ad

mackavi · **Posted:** December 3rd, 2017, 9:58 pm

Might be able to use a wait in a loop. Have some tweaks for a client to look at first though, but will try and see if it works better after that.

</mack>

mackavi · **Posted:** December 6th, 2017, 8:56 pm

Okay, download this example using the code: dual-countdown-v2@digitalgrapevine.info

It uses wait() in a loop. The countdowns are asynchronous and appear accurate against the stopwatch on my phone.

</mack>

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