Blitz includes a Delay command, which effectively does the above. A Delay 3000 would be a 3 second delay.
Another approach is to set the count value to the Millisecs() count plus the time you want the delay to run like so:
The advantage of the count approach is that some condition could occur during the While statement that you might want to deal with without waiting, or you may have some useful stuff you could be doing during that time to help speed the game along. The advantage of very short delays might be to compensate for the speed of different PCs. However, to make this truely effective, you would begin with getting the waittime=Millisecs()+n early on, do a lot of stuff in between, the perform the wait loop at the end, before starting all over again like so:
Another approach is to set the count value to the Millisecs() count plus the time you want the delay to run like so:
waittime=Millisecs()+3000 ;set the wait time while waittime>=Millisecs() ;do something during this time if you want wend
The advantage of the count approach is that some condition could occur during the While statement that you might want to deal with without waiting, or you may have some useful stuff you could be doing during that time to help speed the game along. The advantage of very short delays might be to compensate for the speed of different PCs. However, to make this truely effective, you would begin with getting the waittime=Millisecs()+n early on, do a lot of stuff in between, the perform the wait loop at the end, before starting all over again like so:
Repeat waittime=Millisecs()+300 ;perform all the actions related to one occurance in your ;program at this point in the program ;test for an end of program condition, whatever that might be While waittime>=Millisecs() ;check for any reason to continue before the timer ends here Wend Forever ;returns to the point where a new delay cycle starts End