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Code cleanups.

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This commit is contained in:
Ragnvald Maartmann-Moe IV 2001-10-30 19:55:34 +00:00
parent 3ad79cc970
commit 7ea1051b9a
2 changed files with 15 additions and 18 deletions
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6
include/QF/mathlib.h
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@ -36,8 +36,8 @@
# define M_PI 3.14159265358979323846 // matches value in gcc v2 math.h
#endif
extern vec3_t vec3_origin;
extern int nanmask;
extern int nanmask;
extern vec3_t vec3_origin;
#define IS_NAN(x) (((*(int *)&x)&nanmask)==nanmask)
@ -84,7 +84,7 @@ void _VectorCopy (vec3_t in, vec3_t out);
int _VectorCompare (vec3_t v1, vec3_t v2);
//vec_t Length (vec3_t v);
void CrossProduct (const vec3_t v1, const vec3_t v2, vec3_t cross);
float VectorNormalize (vec3_t v); // returns vector length
float VectorNormalize (vec3_t v); // returns vector length
void VectorInverse (vec3_t v);
void _VectorScale (vec3_t in, vec_t scale, vec3_t out);
int Q_log2(int val);

27
libs/util/mathlib.c
View file

@ -71,7 +71,7 @@ ProjectPointOnPlane (vec3_t dst, const vec3_t p, const vec3_t normal)
dst[2] = p[2] - d * n[2];
}
// assumes "src" is normalized
// assumes "src" is normalized
void
PerpendicularVector (vec3_t dst, const vec3_t src)
{
@ -100,7 +100,8 @@ PerpendicularVector (vec3_t dst, const vec3_t src)
# pragma optimize( "", off )
#endif
void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up)
void
VectorVectors(const vec3_t forward, vec3_t right, vec3_t up)
{
float d;
@ -112,7 +113,7 @@ void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up)
right[0] -= d * forward[0];
right[1] -= d * forward[1];
right[2] -= d * forward[2];
VectorNormalize(right);
VectorNormalize (right);
CrossProduct(right, forward, up);
}
@ -411,33 +412,29 @@ vec_t
_Length (vec3_t v)
{
float length;
int i;
length = 0;
for (i = 0; i < 3; i++)
length += v[i] * v[i];
length = sqrt (length); // FIXME
length = sqrt (DotProduct (v, v));
return length;
}
float
VectorNormalize (vec3_t v)
{
float length, ilength;
float length;
length = v[0] * v[0] + v[1] * v[1] + v[2] * v[2];
length = sqrt (length); // FIXME
length = DotProduct (v, v);
if (length)
{
float ilength;
if (length) {
ilength = 1 / length;
length = sqrt (length);
ilength = 1.0 / length;
v[0] *= ilength;
v[1] *= ilength;
v[2] *= ilength;
}
return length;
}
void