private void MoveForward(MartianRobotUpdateable martianRobot)
{
if (martianRobot.Direction.Equals("N"))
{
if (HasLimits(martianRobot) && martianRobot.YPosition + 1 > martianRobot.YLimit)
{
martianRobot.IsLost = true;
}
else
{
martianRobot.YPosition += 1;
}
}
else if (martianRobot.Direction.Equals("E"))
{
if (HasLimits(martianRobot) && martianRobot.XPosition + 1 > martianRobot.XLimit)
{
martianRobot.IsLost = true;
}
else
{
martianRobot.XPosition += 1;
}
}
else if (martianRobot.Direction.Equals("S"))
{
if (HasLimits(martianRobot) && martianRobot.YPosition - 1 < 0)
{
martianRobot.IsLost = true;
}
else
{
martianRobot.YPosition -= 1;
}
}
else if (martianRobot.Direction.Equals("W"))
{
if (HasLimits(martianRobot) && martianRobot.XPosition - 1 < 0)
{
martianRobot.IsLost = true;
}
else
{
martianRobot.XPosition -= 1;
}
}
}
private void CalculateCommand(MartianRobotUpdateable martianRobot, string command)
{
if (!martianRobot.IsLost)
{
switch (command)
{
case "F":
MoveForward(martianRobot);
break;
case "L":
MoveLeft(martianRobot);
break;
case "R":
MoveRight(martianRobot);
break;
}
}
}
private void MoveRight(MartianRobotUpdateable martianRobot)
{
switch (martianRobot.Direction)
{
case "N":
martianRobot.Direction = "E";
break;
case "E":
martianRobot.Direction = "S";
break;
case "S":
martianRobot.Direction = "W";
break;
case "W":
martianRobot.Direction = "N";
break;
}
}
private List <MartianRobotDTO> CalculateCommands(MartianRobotUpdateable martianRobot)
{
List <MartianRobotDTO> response = new List <MartianRobotDTO>();
var commandsAsArray = martianRobot.Commands.ToStringArray();
foreach (var item in commandsAsArray)
{
CalculateCommand(martianRobot, item);
var output = martianRobot.XPosition.ToString() + " " + martianRobot.YPosition.ToString() + " " + martianRobot.Direction;
var result = new MartianRobotDTO()
{
Result = output, X = martianRobot.XPosition, Y = martianRobot.YPosition, Direction = martianRobot.Direction, IsValid = true
};
if (martianRobot.IsLost)
{
output = output + " LOST";
result.IsValid = false;
}
response.Add(result);
}
return(response);
}
public bool HasLimits(MartianRobotUpdateable martianRobot)
{
return(martianRobot.XLimit > 0 && martianRobot.YLimit > 0);
}