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timers (Read 1339 times)
rpw029
timers
Mar 16th, 2010, 7:53pm  
Hello, I'm trying to implement a timer into my code,  but I only want it to show up when I call a certain 'stage' function. So since I'm using the millis(); function, once I get to the screen that I want, the timer has already reached 0. When I want it to countdown from 10 to 0. Here is the code for this part:
Code:

int startingTime;
currentTime = (millis() - startingTime)/1000;
text("Time: " + counter, 70, 50);
        
      if(currentTime <= 1){
        counter = 10;
      }else if(currentTime == 2){
        counter = 9;
      }else if(currentTime == 3){
        counter = 8;
      }else if(currentTime == 4){
        counter = 7;
      }else if(currentTime == 5){
        counter = 6;
      }else if(currentTime == 6){
        counter = 5;
      }else if(currentTime == 7){
        counter = 4;
      }else if(currentTime == 8){
        counter = 3;
      }else if(currentTime == 9){
        counter = 2;
      }else if(currentTime == 10){
        counter = 1;
      }else if(currentTime == 11){
        counter = 0;
      }

That's about it so far..is there a way to reset the value assigned to millis(); later in the program so it doesn't keep incrementing from the start of the program? Thanks!
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TfGuy44
Re: timers
Reply #1 - Mar 16th, 2010, 8:45pm  
It's not a problem... unless you plan to run your program for longer than 24 days...

Tongue

(2,147,483,647 milliseconds = 24.8551348 days)
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rpw029
Re: timers
Reply #2 - Mar 16th, 2010, 8:49pm  
Yeah, but what happens is once I get to this point in the program where I want the timer to start displaying a countdown, it just shows a value of 0.

I don't know if I have to reset the currentTime or millis functions?I have a println of currentTime and it's always 0 until it gets to this stage where I want it to start counting, but then it starts printing out numbers starting at either 50 or 80..it's never consistent, so I'm not sure what the issue is.
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TfGuy44
Re: timers
Reply #3 - Mar 16th, 2010, 9:24pm  
I'm sure you can adapt the following to suit your needs:

Quote:
int start;
int count;
void setup(){
  start = millis();
  count = 10;
  println( count );
}

void draw(){
  if( (millis()-start) >= 1000 ){
    start = millis();
    count--; 
    if( count == -1 ){
      count = 10;
    }
    println( count );
  }
}


Grin
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rpw029
Re: timers
Reply #4 - Mar 16th, 2010, 10:17pm  
hmm, i'm still having some issues with implementing it into the stage..like i see how this prints 10 to 0 in the console, but is there a way that I can print a timer counting down from 10 on the screen? I'm pretty sure that the issue is that millis wasn't resetting once i get to that point in the game, but I'm not entirely sure.
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TfGuy44
Re: timers
Reply #5 - Mar 16th, 2010, 10:25pm  
int start;
int count;
void setup(){
 start = millis();
 count = 10;
 println( count );
}

void draw(){
 if( (millis()-start) >= 1000 ){
   start = millis();
   count--;
   if( count == -1 ){
     count = 10;
   }
 }
 text("Time: " + count, 70, 50);
}
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