Reimplement ftos_mindecimals in a simpler and more correct way

[xonotic/xonotic-data.pk3dir.git] / qcsrc / lib / vector.qh

diff --git a/qcsrc/lib/vector.qh b/qcsrc/lib/vector.qh
index cdfe739a09a6de9c6f4e19c74e74af7085bc7812..def1dae2d489f512a0c677087943814c00f8b8a7 100644 (file)
--- a/qcsrc/lib/vector.qh
+++ b/qcsrc/lib/vector.qh
@@ -87,10 +87,12 @@ float boxinsidebox(vector smins, vector smaxs, vector bmins, vector bmaxs) { ret
 } MACRO_END
 
 noref vector _vec2;
-#define vec2(v) (_vec2 = (v), _vec2.z = 0, _vec2)
+#define vec2(...) EVAL(OVERLOAD(vec2, __VA_ARGS__))
+#define vec2_1(v) (_vec2 = (v), _vec2.z = 0, _vec2)
+#define vec2_2(x, y) (_vec2_x = (x), _vec2_y = (y), _vec2)
 
 noref vector _vec3;
-#define vec3(x, y, z) (_vec3_x = (x), _vec3_y = (y), _vec3_z = (z), _vec3)
+#define vec3(_x, _y, _z) (_vec3.x = (_x), _vec3.y = (_y), _vec3.z = (_z), _vec3)
 
 vector rotate(vector v, float a)
 {
@@ -104,6 +106,16 @@ vector rotate(vector v, float a)
 noref vector _yinvert;
 #define yinvert(v) (_yinvert = (v), _yinvert.y = 1 - _yinvert.y, _yinvert)
 
+/**
+ * @param dir the directional vector
+ * @param norm the normalized normal
+ * @returns dir reflected by norm
+ */
+vector reflect(vector dir, vector norm)
+{
+       return dir - 2 * (dir * norm) * norm;
+}
+
 #ifndef MENUQC
        vector get_corner_position(entity box, int corner)
        {