Unity 3D Game Development by Example

Time for action - create the countdown logic

Let's set the startTime variable, and build the logic to handle the counting-down functionality of our clock.

1. Set the startTime variable:

   function Start() {
   startTime = 5.0;
   }
   

   Note

   Note: five seconds to beat the game is a bit ridiculous. We're just keeping the time tight for testing. You can crank this variable up later.

2. Decrease the amount of time on the clock:

   function DoCountdown()
   {
   timeRemaining = startTime - Time.time;
   }
   

3. If the clock hits zero, pause the clock and call the TimeIsUp() function:

   timeRemaining = startTime - Time.time;
   if (timeRemaining < 0)
   {
   timeRemaining = 0;
   isPaused = true;
   TimeIsUp();
   }
   

4. Add some Debug statements so that you can see something happening:

   function DoCountdown() { ...