bunny83/utilities

A (hopfully) growing collection of various math, geometry and general utility classes for Unity3d and C#

utilities's Issues

Where is bmploader?

Looking for bmploader (a) to see if any updates since 2017 (b) report a bug.

Attached file causes an index out of range crash
Blank18.zip
.

Issue with BMPLoader/ReadPalette

There is a bug with ReadPalette, some indexed BMP files are loaded as empty because ReadPalette sets zero alpha.
I've made a workaround:
//byte a = aReader.ReadByte(); Looks like a bug, BMP doesn't support transparency.
byte a = 255;

XorShift64: Range() cast to signed integer causes out-of-range values to be returned

Hi, I'm using some of your code in my program (found it via a Google search). I noticed that in Range() the cast to (int) sometimes causes out-of-range values to be returned, since in C# the modulus operation is sign sensitive (for example -10 % 3 = -1):

public int Range(int aMin, int aMax)
{
  return aMin + (int)Next() % (aMax - aMin);
}

In my own code, I changed it to:

public int Range(int aMin, int aMax)
{
  Debug.Assert(aMax > aMin);

  return aMin + (int)((uint)Next() % (aMax - aMin));
}

(Edit: I don't think this would work when (aMax - aMin) >= 2^31 but I don't need such large ranges in my code)

Bitmaps display as all black

Attached bitmaps work fine in Windows but display all black in Unity.

bitmaps.zip

Can't read certain BMPs

Hi! I was unable to load the attached BMP, tried with different settings.
Game.zip