libcore|Math: Added 2D cross product

skyjake · Dec 12, 2019 · 9f89f92 · 9f89f92
1 parent 1c1789e
commit 9f89f92
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/doomsday/sdk/libcore/include/de/core/vector.h b/doomsday/sdk/libcore/include/de/core/vector.h
@@ -243,9 +243,12 @@ class Vector2
     Vector2 abs() const {
         return Vector2(de::abs(x), de::abs(y));
     }
-    ddouble dot(Vector2 const &other) const {
+    double dot(const Vector2 &other) const {
         return x * other.x + y * other.y;
     }
+    double cross(const Vector2 &other) const {
+        return x * other.y - y * other.x;
+    }
     Vector2 min(Vector2 const &other) const {
         return Vector2(de::min(x, other.x), de::min(y, other.y));
     }