public static MemoScene ParseScene(IReadOnlyList <string> lines)
{
var scene = new MemoScene();
Debug.Assert(lines.Count == 4);
Debug.Assert(lines.All(l => l.Length >= 4));
for (var row = 0; row < 4; row++)
{
for (var col = 0; col < 4; col++)
{
var c = lines[row][col];
Debug.Assert(AllValidCharset.Contains(c));
foreach (var charset in AllNumberCharsets)
{
var index = charset.IndexOf(c);
if (index >= 0)
{
scene[row, col] = new MemoNote
{
Type = MemoNote.NoteType.Click,
Ordinal = index + 1
};
break;
}
}
}
}
for (var row = 0; row < 4; row++)
{
for (var col = 0; col < 4; col++)
{
var direction = GetDirection(lines[row][col]);
if (direction != MemoNote.Direction.Undefined)
{
SetHoldNote(scene, row, col, direction);
}
}
}
return(scene);
}
private static void SetHoldNote(MemoScene scene, int row, int col, MemoNote.Direction direction)
{
var rowOffset = RowOffset[direction];
var colOffset = ColOffset[direction];
for (var span = 1;; span++)
{
row += rowOffset;
col += colOffset;
if (scene[row, col].Type == MemoNote.NoteType.Click)
{
scene[row, col] = new MemoNote
{
Type = MemoNote.NoteType.Hold,
Ordinal = scene[row, col].Ordinal,
HoldSpan = span,
HoldDirection = direction
};
break;
}
}
}
public static char NoteToChar(MemoNote note)
{
return(NoteCharset[note.Ordinal]);
}