(c1468d39d) Overhauled docking interface (WIP)

Barotrauma/BarotraumaShared/Source/Utils/MathUtils.cs

@@ -795,6 +795,18 @@ namespace Barotrauma
             return new Vector2((float)x, (float)y);
         }
 
+        /// <summary>
+        /// Rotates a point in 2d space around the origin
+        /// </summary>
+        public static Vector2 RotatePoint(Vector2 point, float radians)
+        {
+            var sin = Math.Sin(radians);
+            var cos = Math.Cos(radians);
+            var x = (cos * point.X) - (sin * point.Y);
+            var y = (sin * point.X) + (cos * point.Y);
+            return new Vector2((float)x, (float)y);
+        }
+
         /// <summary>
         /// Returns the corners of an imaginary rectangle.
         /// Unlike the XNA rectangle, this can be rotated with the up parameter.