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Question by HolBol · Apr 17, 2010 at 09:24 PM · particlesgetkeydown

Button Particle Emission

I have this, i want particles to emit when i press space, and to stop when i realease.

function FixedUpdate() {

if (Input.GetKeyDown ("space")) { particleEmitter.emit = true; }

if Input.GetKeyUp ("space")) { particleEmitter.emit = false; } }

but it comes up with errors. What am i doing wrong?

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Answer by Eric5h5 · Apr 17, 2010 at 09:28 PM

You're missing a parenthesis in the second if statement. Also, don't use GetKeyDown or GetKeyUp in FixedUpdate, because those events are only true during the one frame that they're activated, and FixedUpdate doesn't run every frame. Only use FixedUpdate for physics.

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avatar image HolBol · Apr 17, 2010 at 09:46 PM 0
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AH woops soz just found that, thanks

avatar image HolBol · Apr 17, 2010 at 09:47 PM 0
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Also, sometimes it doesn't turn off when i release Space, is this just a unity bug?

avatar image Eric5h5 · Apr 17, 2010 at 11:09 PM 0
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@Fishman92: It's not a bug. I edited my answer to add more info about that.

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