/// <summary>
/// Method which handles a shot being fired within a Game
/// </summary>
/// <param name="game"></param>
/// <param name="shot"></param>
/// <returns></returns>
public Game FireShot(Game game, GridCoords shot)
{
var indices = ArrayMapper.GetArrayIndicesForCoords(shot);
var target = game.GameGrid.Cells[indices.X, indices.Y];
switch (target.Status)
{
case GridCellStatus.OpenSea:
game = ShotMissed(game, indices);
break;
case GridCellStatus.ShipIntact:
game = ShotLanded(game, indices);
break;
case GridCellStatus.ShotLanded:
AlreadyAttempted(game);
break;
case GridCellStatus.ShotMissed:
AlreadyAttempted(game);
break;
}
;
return(game);
}
/// <summary>
/// Calculates the max size boat that can be started vertically from this Grid Cell
/// </summary>
public void CalculateVerticalBoatCapacity(Grid grid)
{
// Get the array indices for the current Grid Cell
var gridRef = new GridCoords(XRef, YRef);
var indices = ArrayMapper.GetArrayIndicesForCoords(gridRef);
var x = indices.X;
var y = indices.Y;
// Get the height of the grid
var height = grid.Cells.GetLength(0);
// Reset
VerticalBoatCapacity = 0;
// Calculate
for (int i = x; i < height; i++)
{
if (grid.Cells[x, i].Status == GridCellStatus.OpenSea)
{
VerticalBoatCapacity++;
}
else
{
VerticalBoatCapacity = 0;
break;
}
}
}
public void GetArrayIndicesForCoords_WhenArgumentsAreValid_ExpectSuccessfulMapping()
{
// Arrange
_gridCoordsArgument = new GridCoords(5, "D");
_arrayIndicesResponse = new Indices(4, 3);
// Act
var result = ArrayMapper.GetArrayIndicesForCoords(_gridCoordsArgument);
// Assert
Assert.AreEqual(this._arrayIndicesResponse.X, result.X);
Assert.AreEqual(this._arrayIndicesResponse.Y, result.Y);
}
public void GetArrayIndicesForCoords_WhenCoordsArgumentIsNull_ExpectArgumentNullException()
{
// Arrange
_gridCoordsArgument = null;
// Act
try
{
var result = ArrayMapper.GetArrayIndicesForCoords(_gridCoordsArgument);
} catch (Exception ex)
{
// Assert
Assert.IsInstanceOfType(ex, typeof(ArgumentNullException));
throw;
}
}
public void GetArrayIndicesForCoords_WhenTheXCoordIsInvalid_ExpectArgumentException()
{
// Arrange
_gridCoordsArgument = new GridCoords(-1, "E");
// Act
try
{
var result = ArrayMapper.GetArrayIndicesForCoords(_gridCoordsArgument);
}
catch (Exception ex)
{
// Assert
Assert.IsInstanceOfType(ex, typeof(ArgumentOutOfRangeException));
throw;
}
}