public static void Can_Parse_Characters()
{
// Arrange
string[] letters =
{
".**..***...**..****.****..**..*..*..***...**.*..*.*.....**..***..***..*..*.*...*****.",
"*..*.*..*.*..*.*....*....*..*.*..*...*.....*.*.*..*....*..*.*..*.*..*.*..*.*...*...*.",
"*..*.***..*....***..***..*....****...*.....*.**...*....*..*.*..*.*..*.*..*..*.*...*..",
"****.*..*.*....*....*....*.**.*..*...*.....*.*.*..*....*..*.***..***..*..*...*...*...",
"*..*.*..*.*..*.*....*....*..*.*..*...*..*..*.*.*..*....*..*.*....*.*..*..*...*..*....",
"*..*.***...**..****.*.....***.*..*..***..**..*..*.****..**..*....*..*..**....*..****.",
};
// Act
string actual = CharacterRecognition.Read(string.Join(Environment.NewLine, letters));
// Assert
actual.ShouldBe("ABCEFGHIJKLOPRUYZ");
}
/// <summary>
/// Gets the number of pixels lit in the specified grid after following the specified instructions.
/// </summary>
/// <param name="instructions">The instructions to use to manipulate the grid of lights.</param>
/// <param name="width">The width of the grid.</param>
/// <param name="height">The height of the grid.</param>
/// <param name="logger">The logger to use.</param>
/// <returns>
/// The number of pixels lit in the grid once the instructions are processed,
/// the code displayed, and a visualization.
/// </returns>
internal static (int PixelsLit, string Code, string Visualization) GetPixelsLit(
IEnumerable <string> instructions,
int width,
int height,
ILogger logger)
{
var operations = instructions
.Select((p) => ParseInstruction(p))
.ToArray();
bool[,] grid = new bool[width, height];
foreach (Instruction instruction in operations)
{
if (instruction.IsRotation)
{
if (instruction.IsColumn)
{
RotateColumn(grid, column: instruction.A, pixels: instruction.B);
}
else
{
RotateRow(grid, row: instruction.A, pixels: instruction.B);
}
}
else
{
LightRectangle(grid, width: instruction.A, height: instruction.B);
}
}
int pixelsLit = CountLitPixels(grid);
string code = CharacterRecognition.Read(grid);
string visualization = logger.WriteGrid(grid, ' ', 'X');
return(pixelsLit, code, visualization);
}