Need decimals of a division of Ints

Question

Hi,

I have two ints and dividing them I need to obtain a float. But if I use the normal division I obtain a int without decimals, what can I do?

Lot of thanks

Answer 1

Best Answer

Answer by oxium · May 23, 2011 at 07:20 AM

just cast in float before you do the division. something like that :

 int i1 = 10;
 int i2 = 3;
 float f = ((float) i1) / ((float) i2);

then f will be equal to 3.33333 (instead of 3 if you change the type of f to be integer)

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Infinity · May 23, 2011 at 08:46 AM 0

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It gives me this error:

Assets/nuevo/Scripts/Progressive Health Bar.js(35,28): UCE0001: ';' expected. Insert a semicolon at the end.

Exactly in : float f = ((float) i1) / ((float) i2);

Joshua · May 23, 2011 at 09:10 AM 0

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He is using C#, are you as well?

Answer 2

Answer by KeithK · May 23, 2011 at 07:20 AM

Hey Infinity

What's happening is because you dividing an int by another int, it is assumed you would like an int as your answer type.

To get your result as a float, just cast your first int to a float like so:

 float answer = ((float)intOne) / intTwo;

This is then seen as a float being divided and so implicit conversions to float from all non-float types will occur.

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Infinity · May 23, 2011 at 08:45 AM 0

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It gives me the following error when I use it:

Assets/nuevo/Scripts/Progressive Health Bar.js(35,28): UCE0001: ';' expected. Insert a semicolon at the end.

The error is exactly in this line

KeithK · May 23, 2011 at 08:51 AM 0

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Oh damn it. Sorry, forgot a set of brackets. Updated the answer even though this question is marked as answer.

Statement · May 23, 2011 at 09:01 AM 1

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I think it's because Infinity expects a JS solution while you and oxium provide C# solutions. I think you could just replace the initial types from int and float to var.

Infinity · May 23, 2011 at 12:51 PM 0

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And how I can use it on javascript? I can't change the main type of the variables >__<

Answer 3

Answer by SisterKy · Jan 11, 2013 at 12:13 PM

This is an old question but since it was the first to come up when I googled I'd like to add the js-solution

 var c : float = parseFloat(a) / b;

or

 var c : float = (a+0.0) / b;

Additional Info:
Casting in UnityScript is usually done through "variable name" as "classname" ,
but since int/float are primitives, this WON'T work:

 a as float

Source (Answer by Eric, additional Info by Dreamora)

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Need decimals of a division of Ints

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