daily update on 20230302 by nitload youmu

2023-03-03 00:54:59 +08:00
parent bb71567e51
commit df2af2b2d5
37 changed files with 374 additions and 44 deletions
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StgSharp.Math
+{
+    public static unsafe partial class Vector
+    {
+
+        public static float Cross(Vec2D vec1, Vec2D vec2)
+        {
+            return vec1.X * vec2.Y - vec1.Y * vec2.X;
+        }
+
+        public static Vec3D Cross(Vec3D vec1, Vec3D vec2)
+        {
+            return new Vec3D(
+                vec1.Y * vec2.Z - vec1.Z * vec2.Y,
+                vec1.X * vec2.Z - vec1.Z * vec2.X,
+                vec1.X * vec2.Y - vec1.Y * vec2.X
+                );
+        }
+    }
+}