public Position Move(MoveBehaviorEnum currentBehavior, DirectionEnum currentDirection, Point currentPosition)
{
var nextPosition = currentPosition;
var nextDirection = currentDirection.NextDirection(currentBehavior);
if (currentBehavior == MoveBehaviorEnum.Move)
{
switch (nextDirection)
{
case DirectionEnum.East:
nextPosition.Y = currentPosition.Y + 1;
break;
case DirectionEnum.West:
nextPosition.Y = currentPosition.Y - 1;
break;
case DirectionEnum.North:
nextPosition.X = currentPosition.X - 1;
break;
case DirectionEnum.South:
nextPosition.X = currentPosition.X + 1;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
// Check boundary of boarsize
if (nextPosition.X < 0)
{
nextPosition.X = 0;
}
else if (nextPosition.X > _gameSetting.BoardSize.Height - 1)
{
nextPosition.X = _gameSetting.BoardSize.Height - 1;
}
if (nextPosition.Y < 0)
{
nextPosition.Y = 0;
}
else if (nextPosition.Y > _gameSetting.BoardSize.Width - 1)
{
nextPosition.Y = _gameSetting.BoardSize.Width - 1;
}
return(new Position {
Direction = nextDirection, CurrentPosition = nextPosition
});
}
public void Move_ShouldReturnCorrectPosition(MoveBehaviorEnum behavior, DirectionEnum direction, int posX,
int posY, DirectionEnum expectedDirection, int expPosX, int expPosY)
{
//Arrange
var currentPos = new Point(posX, posY);
var expectedPos = new Point(expPosX, expPosY);
var gameSetting = new GameSetting
{
BoardSize = new BoardSize
{
Width = 5,
Height = 5
}
};
var sequenceMoveHandler = new SequenceMoveHandler(gameSetting);
//Act
var expectedResult = sequenceMoveHandler.Move(behavior, direction, currentPos);
//Assert
Assert.Equal(expectedPos, expectedResult.CurrentPosition);
Assert.Equal(expectedDirection, expectedResult.Direction);
}
public void NextDirection_ShouldReturnCorrectDirection(DirectionEnum currentEnum, MoveBehaviorEnum moveBehavior, DirectionEnum expected)
{
//Arrange & Act
var actualDirection = currentEnum.NextDirection(moveBehavior);
//Assert
Assert.Equal(expected, actualDirection);
}
public static DirectionEnum NextDirection(this DirectionEnum currentDirection, MoveBehaviorEnum behavior)
{
if (behavior == MoveBehaviorEnum.Move)
{
return(currentDirection);
}
var newDirectionPos = (int)currentDirection;
if (behavior == MoveBehaviorEnum.Left)
{
newDirectionPos = (int)currentDirection - 1;
}
else if (behavior == MoveBehaviorEnum.Right)
{
newDirectionPos = (int)currentDirection + 1;
}
if (newDirectionPos < 1)
{
newDirectionPos = 4;
}
else if (newDirectionPos > 4)
{
newDirectionPos = 1;
}
return((DirectionEnum)Enum.Parse(typeof(DirectionEnum), newDirectionPos.ToString()));
}
