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This question was closed Sep 21, 2016 at 03:05 AM by Trevdevs for the following reason:

The question is answered, right answer was accepted

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Question by Trevdevs · Sep 21, 2016 at 01:37 AM · c#mathvertices

Check my math...?

Yes i know this script is a mess but it's my first time trying mesh generation via code. The code returns no error so it has to be a math error

Here is the line that contains the math i wasn't sure how to contain the order of operations so this is how i typed it and it returns (0, 0, 0) when it is suppose to be (-5, -0, 5)

 float maxRoomSize = 100;
 
 vertices [1] = new Vector3 (-1 * 1 / 2 * Mathf.Sqrt (maxRoomSize), 0, 1 / 2 * Mathf.Sqrt (maxRoomSize));
 
 //Square root of 100 is 10
 
 //10 * 1/2 = 5
 
 //5 * -1 = -5 why is it 0?

I'm almost positive its an order of operations error but i'll let someone else judge that

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avatar image OutOfRam · Sep 21, 2016 at 02:26 AM 0
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There is no problem with the math, Post more of the code. also, as a quick debug, try to set the vector to (-5,0,5) manually,not using calculations and see if it still comes out as 000

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Answer by flaviusxvii · Sep 21, 2016 at 02:31 AM

You're suffering from integer division.. try changing 2 to 2f and it'll work.

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avatar image Trevdevs · Sep 21, 2016 at 03:04 AM 0
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That would be it never learned about "integer division" but after reading about it that does make a lot more sense probably why people just use floats as defaults so this doesn't happen :)

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