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using System.Linq;
namespace Texty.Scripts.Commands
{
public enum LookModifier
{
At,
Around
}
public class LookCommand : Command
{
public LookCommand()
{
}
public LookCommand(string[] arguments) : base(CommandType.Look, arguments)
{
(Modifier, arguments) = TryParseModifier(arguments);
Target = string.Join(" ", arguments);
}
public string Target { get; }
public LookModifier? Modifier { get; }
/// <summary>
/// Access this <c>LookCommand</c>'s modifier as a string.
/// </summary>
/// <remarks>
/// This function is provided as a means for testing the modifier parsing from GDScript.
/// </remarks>
private string ModifierAsString => Modifier?.ToString();
public override string ToString()
{
return $"look {ModifierAsString?.ToLower()} {string.Join(" ", Target)}";
}
/// <summary>
/// Try to parse this <c>LookCommand</c>'s modifier from the given arguments.
/// </summary>
/// <param name="arguments">The arguments given to this look commands</param>
/// <returns>A pair consisting of the parse modifier and the remaining arguments</returns>
private static (LookModifier?, string[]) TryParseModifier(string[] arguments)
{
if (arguments.Length == 0)
return (null, arguments);
return arguments[0].ToLower() switch
{
"at" => (LookModifier.At, arguments.Skip(1).ToArray()),
"around" => (LookModifier.Around, new string[] { }),
_ => (null, arguments)
};
}
}
}
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