NScumm.Scumm.ScummEngine.RedefineBuiltinCursorFromChar C# (CSharp) Метод

        protected void RedefineBuiltinCursorFromChar(int index, int chr)
        {
            // Cursor image in both Loom versions are based on images from charset.
            // This function is *only* supported for Loom!
            if (_game.GameId != Scumm.IO.GameId.Loom)
                throw new NotSupportedException("RedefineBuiltinCursorFromChar is *only* supported for Loom!");
            if (index < 0 || index >= 4)
                throw new ArgumentException("index");

            //	const int oldID = _charset->getCurID();

            var ptr = _cursorImages[index];

            if (_game.Version == 3)
            {
                _charset.SetCurID(0);
            }
            else if (_game.Version >= 4)
            {
                _charset.SetCurID(1);
            }

            var s = new Surface(_charset.GetCharWidth(chr), _charset.GetFontHeight(), PixelFormat.Indexed8, false);
            var p = new PixelNavigator(s);
            Gdi.Fill(new PixelNavigator(s), 123, s.Width, s.Height);

            _charset.DrawChar(chr, s, 0, 0);

            Array.Clear(ptr, 0, ptr.Length);
            for (int h = 0; h < s.Height; h++)
            {
                for (int w = 0; w < s.Width; w++)
                {
                    p.GoTo(w, h);
                    if (p.Read() != 123)
                    {
                        ptr[h] |= (ushort)(1 << (15 - w));
                    }
                }
            }

            //	_charset->setCurID(oldID);
        }