UnityEditor.HandleUtility.CalcLineTranslation C# (CSharp) Méthode

        public static float CalcLineTranslation(Vector2 src, Vector2 dest, Vector3 srcPosition, Vector3 constraintDir)
        {
            srcPosition = Handles.matrix.MultiplyPoint(srcPosition);
            constraintDir = Handles.matrix.MultiplyVector(constraintDir);
            float num = 1f;
            Vector3 forward = Camera.current.transform.forward;
            if (Vector3.Dot(constraintDir, forward) < 0f)
            {
                num = -1f;
            }
            Vector3 vector2 = constraintDir;
            vector2.y = -vector2.y;
            Camera current = Camera.current;
            Vector2 vector3 = EditorGUIUtility.PixelsToPoints(current.WorldToScreenPoint(srcPosition));
            Vector2 vector4 = EditorGUIUtility.PixelsToPoints(current.WorldToScreenPoint(srcPosition + ((Vector3) (constraintDir * num))));
            Vector2 vector5 = dest;
            Vector2 vector6 = src;
            if (vector3 == vector4)
            {
                return 0f;
            }
            vector5.y = -vector5.y;
            vector6.y = -vector6.y;
            float num3 = GetParametrization(vector6, vector3, vector4);
            return ((GetParametrization(vector5, vector3, vector4) - num3) * num);
        }