private static CurrentlyPositionAndStatus RunCommand(CurrentlyPositionAndStatus currentlyPosition, IEnumerable <GameCoordinate> mineCoordinate, string command)
{
var movement = Movements.UnknownMovement;
movement = (Movements)Enum.Parse(typeof(Movements), command);
if (movement.Equals(Movements.UnknownMovement))
{
throw new ArgumentException();
}
switch (movement)
{
case Movements.M:
currentlyPosition = MoveTurtle(mineCoordinate, currentlyPosition);
break;
case Movements.L:
currentlyPosition = RotateLeftTurtle(currentlyPosition);
break;
case Movements.R:
currentlyPosition = RotateRightTurtle(currentlyPosition);
break;
case Movements.UnknownMovement:
break;
default:
Console.WriteLine("Unknown Movement");
break;
}
return(currentlyPosition);
}
/// <summary>
/// Calculating game movements and write console results.
/// </summary>
/// <param name="gameContext">Game context, it is include mapped game settings</param>
public bool CalculateGameResults(GameContext gameContext)
{
if (gameContext == null)
{
return(false);
}
foreach (var line in gameContext.CommandList)
{
var currentlyPosition = new CurrentlyPositionAndStatus
{
CoordX = gameContext.StartPosition.CoordX,
CoordY = gameContext.StartPosition.CoordY,
Direction = gameContext.StartPosition.Direction,
Status = (int)GameStatus.NotStarted
};
var i = 0;
foreach (var command in line)
{
try
{
currentlyPosition = RunCommand(currentlyPosition, gameContext.MineCoordinates, command);
}
catch (ArgumentException)
{
Console.WriteLine("Unknown Movement");
return(false);
}
if (currentlyPosition.Status == (int)GameStatus.MineHit)
{
Console.WriteLine("Sequence {0}: Mine hit!", gameContext.CommandList.IndexOf(line) + 1);
break;
}
if (i == line.Count - 1)
{
if (currentlyPosition.CoordX == gameContext.ExitPoint.CoordX &&
currentlyPosition.CoordY == gameContext.ExitPoint.CoordY)
{
Console.WriteLine("Sequence {0}: Success!", gameContext.CommandList.IndexOf(line) + 1);
currentlyPosition.Status = (int)GameStatus.Succeed;
}
else
{
Console.WriteLine("Sequence {0}: Still in danger!",
gameContext.CommandList.IndexOf(line) + 1);
currentlyPosition.Status = (int)GameStatus.StillInDanger;
}
}
i++;
}
}
return(true);
}
private static CurrentlyPositionAndStatus RotateLeftTurtle(CurrentlyPositionAndStatus currentlyPosition)
{
switch (currentlyPosition.Direction)
{
case "N":
currentlyPosition.Direction = Directions.West;
break;
case "S":
currentlyPosition.Direction = Directions.East;
break;
case "W":
currentlyPosition.Direction = Directions.South;
break;
case "E":
currentlyPosition.Direction = Directions.North;
break;
}
return(currentlyPosition);
}
private static CurrentlyPositionAndStatus MoveTurtle(IEnumerable <GameCoordinate> mineCoordinates, CurrentlyPositionAndStatus currentlyPosition)
{
switch (currentlyPosition.Direction)
{
case "N":
currentlyPosition.CoordY = currentlyPosition.CoordY - 1;
break;
case "S":
currentlyPosition.CoordY = currentlyPosition.CoordY + 1;
break;
case "W":
currentlyPosition.CoordX = currentlyPosition.CoordX - 1;
break;
case "E":
currentlyPosition.CoordX = currentlyPosition.CoordX + 1;
break;
}
foreach (var item in mineCoordinates)
{
if (item.CoordX == currentlyPosition.CoordX && item.CoordY == currentlyPosition.CoordY)
{
currentlyPosition.Status = (int)GameStatus.MineHit;
}
}
return(currentlyPosition);
}
