/// <summary>
/// Creates the command.
/// </summary>
/// <param name="input">The input command.</param>
/// <returns></returns>
public static ICommand CreateCommand(string input)
{
ICommand command = null;
try
{
var inputSplit = input.Split(' ');
switch (inputSplit[0])
{
case "C":
command = new CanvasCommand(inputSplit[1], inputSplit[2]);
break;
case "L":
command = new LineCommand(inputSplit[1], inputSplit[2],
inputSplit[3], inputSplit[4]);
break;
case "R":
command = new RectCommand(inputSplit[1], inputSplit[2],
inputSplit[3], inputSplit[4]);
break;
case "B":
command = new FillCommand(inputSplit[1], inputSplit[2],
inputSplit[3]);
break;
case "Q":
command = new QuitCommand();
break;
default:
break;
}
if (command != null && !command.IsValid)
{
command = null;
}
}
catch (System.Exception)
{
command = null;
}
return(command);
}
public void TestRectCommand()
{
bool[,] matrix = new bool[4, 3];
RectCommand cmd = new RectCommand("rect 3x2");
cmd.ApplyCommand(matrix);
Assert.IsTrue(
matrix[0, 0] &&
matrix[1, 0] &&
matrix[2, 0] &&
matrix[0, 1] &&
matrix[1, 1] &&
matrix[1, 1]);
Assert.IsFalse(
matrix[3, 0] ||
matrix[3, 1] ||
matrix[0, 2] ||
matrix[1, 2] ||
matrix[2, 2]);
}