AFTER...CALL

The AFTER...CALL command implement a countdown timer for your program. It is a very useful tool for making a piece of code run after a specific interval, essentially turning your program into a countdown. You must specifying the length of time to wait, measured in TICKS.

When the timer reaches the specified timer, the program stops executing the current code and jumps to the PROCEDURE indicated by the label. After executing the routine, the program returns to where it left off and resumes execution. After the call, the timer is disabled. You must use, again, the AFTER...CALL to enable again the mechanism.

There are 8 delay timers from 0 to 7 which can be specified with timer parameter. If omitted, timer will be considered as 0. In the case of parallel timers, 0 will be the highest and 7 the lowest priority.

With EVERY OFF and EVERY ON you can disable or enable the timed calls. It is important to know or realise that low-priority-procedures which occurs simultanously to higher-priority-procedures are not lost. Their task remains or handled again after finishing the higher-prio interrupt.

Finally, note that the accuracy of the timer can vary depending on hardware and operating system, and it can be used to create animations, simulate real-time events, or simply to execute tasks after a specific time.

EXAMPLE

 AFTER 50 TICKS CALL changeBorderColor
 AFTER 50,2 TICKS CALL changeBorderColor

Used in:
USING AFTER..CALL