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round utility functions

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add mRoundF to return nearest floating value to stepsize
This commit is contained in:
AzaezelX 2024-04-10 14:17:19 -05:00
parent f0e7a27c16
commit f7ed077d82
4 changed files with 27 additions and 24 deletions
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8
Engine/source/math/mConsoleFunctions.cpp
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@ -103,6 +103,14 @@ DefineEngineFunction( mRound, S32, ( F32 v ),,
"@ingroup Math" )
{
return mRound(v);
DefineEngineFunction(mRoundF, F32, (F32 v, F32 step), ,
"Round v to the nth decimal place or the nearest whole number by default."
"@param v Value to roundn"
"@return The rounded value as a F32."
"@ingroup Math")
{
return mRoundF(v, step);
}
DefineEngineFunction(mRoundDelta, S32, (F32 v, S32 d), (0.0, 1),

17
Engine/source/math/mMathFn.h
View file

@ -217,7 +217,22 @@ inline F32 mRound(const F32 val, const S32 n)
S32 place = (S32) pow(10.0f, n);
return mFloor((val*place)+0.5)/place;
}
}
inline F32 mRoundF(const F32 val, const F32 step)
{
if (step == 0.0f)
return val;
F32 a = mFmod(val, step);
F32 temp = val;
if (mFabs(a) > (step / 2))
val < 0.0f ? temp -= step : temp += step;
return(temp - a);
}
inline S32 mAbs(const S32 val)
{