public bool TryGetSimpleCommand(string command, out BaseCommand returnCommand)
{
returnCommand = null;
string[] arguments = null;
string methodName = GetMethodSingature(command, ref arguments);
CommandsMethods commandEnum = _availableCommands.FirstOrDefault(com => com.ToString() == methodName);
if (commandEnum == 0)
{
return(false);
}
switch (commandEnum)
{
case (CommandsMethods.Forward):
if (arguments == null || arguments.Length != 1 || arguments[0] != string.Empty)
{
return(false);
}
returnCommand = new MoveCommand(_implementator, MoveSides.FORWARD);
return(true);
case (CommandsMethods.Backward):
if (arguments == null || arguments.Length != 1 || arguments[0] != string.Empty)
{
return(false);
}
returnCommand = new MoveCommand(_implementator, MoveSides.BACKWARD);
return(true);
case (CommandsMethods.Turn):
{
if (arguments == null || arguments.Length == 0)
{
return(false);
}
var turnSide = arguments[0].ToLower();
if (turnSide == TurnArguments.Right.ToString().ToLower())
{
returnCommand = new RotateCommand(_implementator, TurnArguments.Right);
}
else if (turnSide == TurnArguments.Left.ToString().ToLower())
{
returnCommand = new RotateCommand(_implementator, TurnArguments.Left);
}
return(true);
}
case (CommandsMethods.Do):
{
int count = 0;
if (arguments == null || arguments.Length == 0 || !int.TryParse(arguments[0], out count))
{
return(false);
}
returnCommand = new DoCommand(_implementator, count);
return(true);
}
case (CommandsMethods.While):
{
if (arguments == null || arguments.Length == 0)
{
return(false);
}
WhileConditions argument = _allWhileConditions.FirstOrDefault(com => com.ToString() == arguments[0]);
if (argument == 0)
{
return(false);
}
returnCommand = new WhileCommand(_implementator, argument);
return(true);
}
}
return(false);
}
public WhileCommand(Character implementator, WhileConditions condition) : base(implementator)
{
_currentCommandIndex = -1;
}