zone: Add Z_ counterparts for Realloc and strdup

[xonotic/darkplaces.git] / mathlib.c

diff --git a/mathlib.c b/mathlib.c
index 8816dc5605cb9dbfaa0f782614c6316a05a4f606..4c19dfe1d38e558af013e23da358031a563bf443 100644 (file)
--- a/mathlib.c
+++ b/mathlib.c
@@ -647,7 +647,7 @@ void AngleVectorsDuke3DFLU (const vec3_t angles, vec3_t forward, vec3_t left, ve
 }
 
 // LadyHavoc: calculates pitch/yaw/roll angles from forward and up vectors
-void AnglesFromVectors (vec3_t angles, const vec3_t forward, const vec3_t up, qboolean flippitch)
+void AnglesFromVectors (vec3_t angles, const vec3_t forward, const vec3_t up, qbool flippitch)
 {
        if (forward[0] == 0 && forward[1] == 0)
        {
@@ -762,21 +762,14 @@ void AngleMatrix (const vec3_t angles, const vec3_t translate, vec_t matrix[][4]
 // LadyHavoc: renamed this to Length, and made the normal one a #define
 float VectorNormalizeLength (vec3_t v)
 {
-       float length, ilength;
+       float length;
 
-       length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
-       length = sqrt (length);
+       length = sqrt(DotProduct(v,v));
 
        if (length)
-       {
-               ilength = 1/length;
-               v[0] *= ilength;
-               v[1] *= ilength;
-               v[2] *= ilength;
-       }
+               VectorScale(v, 1 / length, v);
 
        return length;
-
 }