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I optimized the math routines, they're faster and more compact.

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This commit is contained in:
Nelson Rush 2000-01-01 06:41:15 +00:00
parent 2aaaf57f97
commit c5e3135714
1 changed files with 8 additions and 18 deletions
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26
common/mathlib.c
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@ -92,11 +92,11 @@ void PerpendicularVector( vec3_t dst, const vec3_t src )
void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees )
{
float m[3][3];
float im[3][3];
float zrot[3][3];
float tmpmat[3][3];
float rot[3][3];
float m[3][3],
im[3][3],
zrot[3][3],
tmpmat[3][3],
rot[3][3];
int i;
vec3_t vr, vup, vf;
@ -317,6 +317,7 @@ int VectorCompare (vec3_t v1, vec3_t v2)
{
int i;
for (i=0 ; i<3 ; i++)
if (v1[i] != v2[i])
return 0;
@ -365,27 +366,16 @@ void CrossProduct (vec3_t v1, vec3_t v2, vec3_t cross)
cross[2] = v1[0]*v2[1] - v1[1]*v2[0];
}
double sqrt(double x);
vec_t Length(vec3_t v)
{
int i;
float length;
length = 0;
for (i=0 ; i< 3 ; i++)
length += v[i]*v[i];
length = sqrt (length); // FIXME
return length;
return sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2]);
}
float VectorNormalize (vec3_t v)
{
float length, ilength;
length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
length = sqrt (length); // FIXME
length = sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
if (length)
{