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Question by Redz0ne · Mar 30, 2015 at 04:38 PM · mathf.clamp

When using Mathf.Clamp, can I set a minimum but no maximum?

I'm working on a system using the Mathf.Clamp function and want to know if I can set up a way of making the minimum value be clamped but not the maximum... (or vice-versa if needed.)

Can the Mathf.Clamp work with a minimum but not a maximum or should I input a value for the max that's far, FAR greater than the user would ever hope to reach in this game?

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Answer by Bonfire-Boy · Mar 30, 2015 at 04:50 PM

If you really want to use clamp, and really don't want to clamp at one of the ends, use float.MinValue or float.MaxValue rather than guessing at a bound that won't do anything.

 float f = Mathf.Clamp(f, myMinValue, float.MaxValue);

But I wouldn't use that unless the lack of clamping was something I wanted to turn on or off (ie making the second parameter into a variable which I could set to float.MaxValue as required).

Two quicker ways spring to mind, which are explicitly only looking at the lower bound...

 float f = Mathf.Max( f, myMinValue);

and

 if (f < myMinValue) f = myMinValue;
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avatar image Redz0ne · Mar 30, 2015 at 08:36 PM 0
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Took a bit to get my head around this (as I'm new to coding in C#) but this helped.

Thank you!

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