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AppGameKit Studio Chat / do loops or repeat until?

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dandrews
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Posted: 2nd Aug 2023 17:11
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a do loop compared to a repeat until? wha is the dif besides of course the until condition? is there any effect on performance, memory ect? im asking because i do have a lot of do loops but i started using repeat until in some cases and i like repeat until better for some reason
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adambiser
AGK Developer
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Joined: 16th Sep 2015
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Posted: 3rd Aug 2023 20:19
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Looking at the byte code:

compiles to


While

compiles to

Instruction 5 jumps the IF block when the condition fails. Instruction 6 performs the loop exit. Instruction 7 repeats the loop. So an extra JUMP instruction is needed for do.loop.

However, it really depends on what you need the code to do.
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dandrews
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Posted: 4th Aug 2023 03:48
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well say for a my game menu where the until condition is when the "back" button is pushed, it will exit that menu as apposed to the do loop with the exit command instead when the "back" button is pushed
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PSY
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Joined: 3rd Jul 2016
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Posted: 6th Aug 2023 23:41
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It makes no difference at all in a menu.
It won't make any difference in 99% of all loops, unless for some reason you want to count to 100 million, which on my system takes .5 seconds longer using the do..loop ( adambiser already explained the reason ).
Other calculations inside the loop will burn significantly more cpu time than the loop itself, so the looping method is imho negligible.


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