Merge branch 'master' into sev/luma_revisions

[xonotic/xonotic-data.pk3dir.git] / qcsrc / warpzonelib / mathlib.qc

diff --git a/qcsrc/warpzonelib/mathlib.qc b/qcsrc/warpzonelib/mathlib.qc
index d86af8a00ec786760c15a9440b525a7160d4a0ab..395547036ceb8fa24e6045f3d1aec5b4cb4f8c6a 100644 (file)
--- a/qcsrc/warpzonelib/mathlib.qc
+++ b/qcsrc/warpzonelib/mathlib.qc
@@ -1,11 +1,10 @@
+#include "mathlib.qh"
 #if defined(CSQC)
        #include "../dpdefs/csprogsdefs.qh"
-    #include "mathlib.qh"
 #elif defined(MENUQC)
 #elif defined(SVQC)
-       #include "../dpdefs/progsdefs.qh"
     #include "../dpdefs/dpextensions.qh"
-    #include "mathlib.qh"
+       #include "../dpdefs/progsdefs.qh"
 #endif
 
 int fpclassify(float x)
@@ -290,3 +289,11 @@ int isunordered(float x, float y)
 {
        return !(x < y || x == y || x > y);
 }
+
+vector cross(vector a, vector b)
+{
+       return
+               '1 0 0' * (a.y * b.z - a.z * b.y)
+       +       '0 1 0' * (a.z * b.x - a.x * b.z)
+       +       '0 0 1' * (a.x * b.y - a.y * b.x);
+}