AlliedModders - [INC] Vector helpers

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- - [INC] Vector helpers (https://forums.alliedmods.net/showthread.php?t=307906)

xXDeathreusXx

05-29-2018 20:03

[INC] Vector helpers

1 Attachment(s)

Extends functionality of SourceMod vectors so you don't have to iterate through array blocks every time you want to do a simple operation on a vector. More or less self explanatory what each of them do, but there is some documentation in there

Included:

VectorCopy
VectorLerp
VectorMulAdd
VectorMin
VectorMax
VectorRand
VectorRotate

Some helper functions

AnglesNormalize - ensures an angle is within Valves tolerance
AngleNormalize - same, but for a single value
SinCos - fills in 2 floats with the sin and cosine of the provided radian
AngleMatrix - Given an angle, creates a rotation matrix; to be used with VectorRotate

xXDeathreusXx

08-24-2018 20:08

Re: [INC] Vector helpers

New file uploaded, added:
VectorsEqual
VectorIsZero
VectorRotateOnAxis
VectorMatrix
MatrixVectors
MatrixAngles

mug1wara

08-25-2018 13:11

Re: [INC] Vector helpers

Saves me lots of time, thanks.

Grzyboo

04-14-2019 08:02

Re: [INC] Vector helpers

Code:

stock void VectorRotate(float vec[3], const float matrix[3][3])

{

        vec[0] = GetVectorDotProduct(vec, matrix[0]);

        vec[1] = GetVectorDotProduct(vec, matrix[1]);

        vec[2] = GetVectorDotProduct(vec, matrix[2]);

}

This is fundamentally wrong. You are using already rotated vector values when rotating in next axes.
The rotation matrix values don't seem to be correct either.

Basically, you shouldn't use this .inc file, unless you want to face bugs that are really hard to debug.

xXDeathreusXx

04-15-2019 03:36

Re: [INC] Vector helpers

Just copy pasted what was in mathlib, only thing I wrote myself which could be completely wrong is VectorRotateOnAxis

Grey83

05-01-2019 18:19

Re: [INC] Vector helpers

PHP Code:


		
			
stock void VectorCopy(const float vIn[3], float vOut[3])
{
    vOut[0] = vIn[0];
    vOut[1] = vIn[1];
    vOut[2] = vIn[2];
}

is equival to vOut = vIn;
LOL

Grey83

05-01-2019 19:51

Re: [INC] Vector helpers

PHP Code:


		
			
    while(ang[1] > 180.0) ang[1]-=360.0;
    while(ang[1] <-180.0) ang[1]+=360.0;

maybe better use this:

PHP Code:


		
			
ang = FloatFraction(ang) + RoundToFloor(ang) % 360;

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