Example #1
0
        private static bool EvaluateModeAnswer(DiatonicMode mode, Guitar guitar, int stringNumber, int position, int[][] fretNumbers, string answer)
        {
            var pitch = guitar.GetPitch(stringNumber, position + fretNumbers[0][0]);

            var combinations =
                from keyNote in new[] { pitch.Note, pitch.Note.Invert() }.Distinct()
            from modeName in new[] { mode.GetName(), mode.GetAlternativeName() }.Distinct()
            select $"{keyNote.ToString().ToLowerInvariant()} {modeName.ToLowerInvariant()}";

            return(combinations.Contains(answer));
        }
Example #2
0
        private static void PrintExcercise(Guitar guitar, int stringNumber, int[][] fretNumbers, int maxFretNumber, int questionStringIndex, int questionFretIndex, int position)
        {
            var questionStringNumber = stringNumber + questionStringIndex;
            var sb          = new StringBuilder();
            var stringFrets = new bool[maxFretNumber + 1];

            for (var i = guitar.NumberOfStrings - 1; i >= 0; i--)
            {
                sb.Clear();
                Array.Clear(stringFrets, 0, stringFrets.Length);

                int   fretNumberIndex = i - stringNumber;
                int[] stringFretNumbers;
                if (0 <= fretNumberIndex && fretNumberIndex < fretNumbers.Length)
                {
                    stringFretNumbers = fretNumbers[fretNumberIndex];
                    for (var j = 0; j < stringFretNumbers.Length; j++)
                    {
                        stringFrets[stringFretNumbers[j]] = true;
                    }
                }
                else
                {
                    stringFretNumbers = null;
                }

                sb.Append(guitar.GetPitch(i, 0).Note.ToString().PadRight(3)).Append('-').Append('|');
                for (var j = 0; j < stringFrets.Length; j++)
                {
                    sb.Append('-');
                    if (!stringFrets[j])
                    {
                        sb.Append('-');
                    }
                    else if (i == questionStringNumber && j == stringFretNumbers[questionFretIndex])
                    {
                        sb.Append('?');
                    }
                    else
                    {
                        sb.Append('O');
                    }
                    sb.Append('-').Append('|');
                }

                sb.Append('-');
                Console.WriteLine(sb.ToString());
            }

            Console.WriteLine(new string(' ', 5) + position.ToString().PadLeft(2));
        }