UP Deck tries to evaluate anything enclosed in square brackets. When a deck button is pressed, math expressions are evaluated before the actions are sent to OBS.
Example - if you have defined values $stream_width, $stream_height and $margin (see setting custom values), then you could position an object near the top right of the screen by using;
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Place object near top right position scene=_current item=Icon x=[ $stream_width - $margin ] y=[ $margin ] |
As well as the standard math operators for addition, subtraction, multiplication and division (+, -. *, /), all of the functions listed in the Corona Math Library will also work.
Eample - update a text object with a random number between 5 and 10.
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Update text source with random number text source=LuckyNumber text=[ random(5, 10) ] |
When used with loops, this functionality allows you to create some more complex animations without having to write a lot of individual button commands.
