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if/else – position
Hi,
I’m trying to write expression that moves object as long as “speed” parameter is not equal to 0. I have no alert from AE about that code but it doesn’t do the job, nothing happens…
speed = effect("Slider Control")("Slider");
x = transform.position[0];
y = transform.position[1];if (speed == 0) {[x, y]}
else {[x + time*speed, y]} -
3 Replies
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Animating speed in AE is not simple. This may be helpful:
https://www.motionscript.com/articles/speed-control.html
Dan
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Thanks for respond Dan. Reading the article You quoted I understood where is the problem in my expression. I didn’t know that I can’t use “speed” word as variable name. Since I change it to “spd” shortcut expression started to work.
Indeed it’s a bit complicated to control acceleration and deceleration but until you want to control constant speed, e.g. by slider control, it’s easy as my expression 😉
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So, with little modification, working code looks like that…
spd = effect("speed")("Slider");
x = value[0];
y = value[1];if (spd == 0) {[x, y]}
else {[x + time*spd, y]}
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