static void UpdateRoboPosition(Toyrobot activeRobo)
{
switch (activeRobo.RoboDirection.ToLower())
{
case "south":
if (activeRobo.Ypos > 0)
{
activeRobo.Ypos -= 1;
}
break;
case "north":
if (activeRobo.Ypos < 4)
{
activeRobo.Ypos += 1;
}
break;
case "east":
if (activeRobo.Xpos < 4)
{
activeRobo.Xpos += 1;
}
break;
case "west":
if (activeRobo.Xpos > 0)
{
activeRobo.Xpos -= 1;
}
break;
}
}
public static Toyrobot ProcessInput(string sentence, Toyrobot toyrobot)
{
// Checking the Input is command or line
if (sentence.Contains("place"))
{
string[] words = sentence.Replace("place", string.Empty).Split(",");
// get Xpos (first word)
try
{
toyrobot.Xpos = int.Parse(words[0].Trim());
}
catch (FormatException)
{
return(null);
}
catch (OverflowException)
{
return(null);
}
// get Ypos (first word)
try
{
toyrobot.Ypos = int.Parse(words[1].Trim());
}
catch (FormatException)
{
return(null);
}
catch (OverflowException)
{
return(null);
}
toyrobot.RoboDirection = words[2].Trim();
}
else if (Array.IndexOf(commands, sentence.ToUpper()) >= 0)
{
switch (sentence)
{
case "move":
UpdateRoboPosition(toyrobot);
break;
case "left":
case "right":
GetRoboDirection(toyrobot, sentence);
break;
case "report":
return(null);
}
}
else
{
return(null);
}
return(toyrobot);
}
public bool Add(string inputLine)
{
if (activeRobot == null)
{
activeRobot = new Toyrobot();
}
var result = InputParser.ProcessInput(inputLine.ToLower(), activeRobot);
if (result != null)
{
activeRobot = result;
}
else
{
toyRobots.Add(new Toyrobot {
RoboDirection = activeRobot.RoboDirection, Xpos = activeRobot.Xpos, Ypos = activeRobot.Ypos
});
}
return(true);
}
static void GetRoboDirection(Toyrobot activeRobo, string command)
{
string roboDirection = activeRobo.RoboDirection;
switch (roboDirection.ToLower())
{
case "south":
roboDirection = command.ToLower() == "left" ? "EAST" : "WEST";
break;
case "north":
roboDirection = command.ToLower() == "left" ? "WEST" : "EAST";
break;
case "east":
roboDirection = command.ToLower() == "left" ? "NORTH" : "SOUTH";
break;
case "west":
roboDirection = command.ToLower() == "left" ? "SOUTH" : "NORTH";
break;
}
activeRobo.RoboDirection = roboDirection;
}