countdown

[woo482]

i am useing a delay chip to set a rocket off but it counts up I want it to count down how do I do that ? I have tried useing a negate chip but that just puts - on the begining

[ebs]

You can do like this... :

100-delay

personally, i would have used a timer and do, 100-timer (or any other value, depending on how long you want it to wait.), then hook that to a "less then or equal" with nothing in its B-input.

[woo482]

ok I will try a timer now

[ebs]

You could also use a expression.....

N@Rocket-thingy
I@Go Seconds
O@Fire Countdown
Go & !On -> On=1, Countdown=Seconds;
On -> Timer+=1,interval(1000);
Timer >= Seconds -> Fire=1;
Timer >= Seconds+1 -> Fire=0, On=0;
Countdown = (Timer < Seconds&On)?(Seconds-Timer):0

Untested, tho. But you get the idea, i hope.

[ahref]

timer and a subtract gate.

total time - timer = time left before boom.

should work with most time gates

eg if its 60 seconds then 60 - timer :P