public string Execute(TextAdventureEngine engine, string[] parts)
{
var direction = -1;
if ("forward" == parts.Last())
{
direction = engine.CurrentOrientation;
}
else if ("backward" == parts.Last())
{
direction = DirectionCalculator.Reverse(engine.CurrentOrientation);
}
if (direction == -1)
{
return($"I don't know how to move {parts.Last()}");
}
if (engine.CurrentLocation.Directions[direction] == null)
{
return($"You cannot move {parts.Last()}");
}
var oldLocation = engine.CurrentLocation;
engine.CurrentLocation = oldLocation.Directions[direction];
return($"You move {parts.Last()}");
}
public string Execute(TextAdventureEngine engine, string[] parts)
{
var directionLabel = string.Empty;
if (RightSynonyms.Contains(parts.Last()))
{
engine.CurrentOrientation = DirectionCalculator.TurnRight(engine.CurrentOrientation);
directionLabel = "right";
}
if (LeftSynonyms.Contains(parts.Last()))
{
engine.CurrentOrientation = DirectionCalculator.TurnLeft(engine.CurrentOrientation);
directionLabel = "left";
}
if (BackwardsSynonyms.Contains(parts.Last()))
{
engine.CurrentOrientation = DirectionCalculator.Reverse(engine.CurrentOrientation);
directionLabel = "around";
}
return(directionLabel == string.Empty
? "I don't understand which way you want me to turn."
: $"You turn {directionLabel}.");
}
public void ReturnEastWhenReversedFromWest()
{
Assert.Equal(DirectionCalculator.West, DirectionCalculator.Reverse(DirectionCalculator.East));
}
public void ReturnSouthWhenReversedFromNorth()
{
Assert.Equal(DirectionCalculator.South, DirectionCalculator.Reverse(DirectionCalculator.North));
}