Simple Countdown Timer (Minutes:Seconds:Milliseconds)

Then it is good practice to tell you made your search prior asking, lot of people just omit this step (the search).
Anyway, when I answered, I looked in my own sketches if I had something like that. I found out a chronometer, it should be quite easy to change it to count down instead of up.

int startingTime;
final String format = "This timer has been running for {0,number,integer} days " +
"{1,number,integer} hours {2,number,integer} minutes " +
"and {3,number,integer} seconds";
final String prefix = "This timer has been running for ";
void setup()
{
size(1000, 200);
PFont font = loadFont("AmericanTypewriter-24.vlw");
textFont(font);
frameRate(1);
startingTime = millis();
// For tests
// startingTime = millis() - 1000*(60*60*23 + 60*59 + 50);
// Remove title bar
// Esc to close the window
frame.removeNotify();
frame.setUndecorated(true);
frame.addNotify();
}
void draw()
{
background(#99EEAA);
int seconds = (millis() - startingTime) / 1000;
int minutes = seconds / 60;
int hours = minutes / 60;
int days = hours / 24;
// println(">H " + hours + " M " + minutes + " S " + seconds);
seconds -= minutes * 60;
minutes -= hours * 60;
hours -= days * 24;
// println("=H " + hours + " M " + minutes + " S " + seconds);
//~ String message = MessageFormat.format(format,
//~ days,
//~ hours,
//~ minutes,
//~ seconds
//~ );
String message = prefix +
GetPlural(days, "day") + " " +
GetPlural(hours, "hour") + " " +
GetPlural(minutes, "minute") + " and " +
GetPlural(seconds, "second");
stroke(#0000FF);
fill(#224488);
text(message, 22, 102);
fill(#9977EE);
text(message, 20, 100);
// println(message);
}
String GetPlural(int value, String word)
{
if (value == 1)
return value + " " + word;
// Ad hoc for current sketch,
// I have something more elaborate for irregular plurals
return value + " " + word + "s";
}
void keyPressed()
{
startingTime = millis();
// Also prevent direct exit from Escape key, ask confirmation first
if (key == KeyEvent.VK_ESCAPE)
{
key = 0;
exit(0);
}
}

Trimmed out some fluff, I hope it is still working...

oh_robot

Re: Simple Countdown Timer (Minutes:Seconds:Milliseconds)

2 years ago

Thanks.. However for the records. This is how I did it now:

int c; //time
int cmin;
int csec;
int cmil;
int climit = 10; //10 min countdown
void draw() {
c = climit*60*1000 - millis();
cmin = (c/(60*1000));
csec = (c/(1000))`;
cmil = c00;
println("MIN: "+cmin+" SEC: "+csec+" MIL: "+cmil);
}

rboyart

Re: Re: Simple Countdown Timer (Minutes:Seconds:Milliseconds)

2 years ago

This is the best Timer, thanks to Daniel Shiffman.
Make a class "Timer" :

// Learning Processing
// Daniel Shiffman


class Timer {
 
  int savedTime; // When Timer started
  int totalTime; // How long Timer should last
  
  Timer(int tempTotalTime) {
    totalTime = tempTotalTime;
  }
  
  // Starting the timer
  void start() {
    // When the timer starts it stores the current time in milliseconds.
    savedTime = millis(); 
  }
  
  // The function isFinished() returns true if 5,000 ms have passed. 
  // The work of the timer is farmed out to this method.
  boolean isFinished() { 
    // Check how much time has passed
    int passedTime = millis()- savedTime;
    if (passedTime > totalTime) {
      return true;
    } else {
      return false;
    }

}

}

and then make the setup and draw:



Timer timer;

void setup() {
  size(200,200);
  background(0);
  timer = new Timer(5000);
  timer.start();
}

void draw() {
  if (timer.isFinished()) {
    background(random(255));
    timer.start();
  }
}

i hope it'll help others :)

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