The Ultimate Second-By-Second Timer! (DBP+DBC!!!)

developer forums

Code Snippets / The Ultimate Second-By-Second Timer! (DBP+DBC!!!)

Author

Message

Xenocythe

Years of Service

User Offline

Joined: 26th May 2005

Location: You Essay.

Posted: 22nd Jul 2005 00:43

Link

Count Down...

+ Code Snippet

newtime#=timer()
newtime#=60.00

sync on
do
Dec newtime#,1.00
Print newtime#;
sleep 1000
if newtime#<1 then cls : Print "Time's up!"; : suspend for key : end
sync
cls
loop

Or count up!

+ Code Snippet

newtime#=timer()
newtime#=0.00

sync on
do
Inc newtime#,1.00
Print newtime#;
sleep 1000
if newtime#=60.00 then cls : Print "Time's up!"; : suspend for key : end
sync
cls
loop

These snippets are free to use. (Both made by me)

Any comments?

Enjoy Life while your still alive.
Enjoy a recees anytime!

Profile PM Email Website

BatVink

Moderator

Years of Service

User Offline

Joined: 4th Apr 2003

Location: Gods own County, UK

Posted: 22nd Jul 2005 02:09 Edited at: 22nd Jul 2005 02:10

Link

You need to account for the time it takes for your code to execute. You're also out by a second because you decrement before you sleep.

To keep track of real time, you should pick a point in time (timer()), and always refer back to it. You can't guarantee that your program loop is exactly 1 second, or that it will be constant in a complex program. On my PC, it was out by 70 milliseconds over the period of a minute.

Watch out for the next newsletter, there is a tutorial that covers timing