public void MustReturnCorrectOrderOfPositions_ReversedMode()
{
var gameProps = new GameProps {
Width = 4, Height = 4, MyId = 0
};
_console.Record("....");
_console.Record("....");
_console.Record("....");
_console.Record("....");
var mapScanner = new MapScanner(gameProps, _console);
PreComputedSpiralNavigator sut = new PreComputedSpiralNavigator(mapScanner, _console, true, gameProps);
var firstPosition = sut.First();
Assert.AreEqual((1, 2), firstPosition);
Assert.AreEqual('E', sut.Next((1, 2)).Direction);
Assert.AreEqual('N', sut.Next((2, 2)).Direction);
Assert.AreEqual('W', sut.Next((2, 1)).Direction);
Assert.AreEqual('W', sut.Next((1, 1)).Direction);
Assert.AreEqual('S', sut.Next((0, 1)).Direction);
Assert.AreEqual('N', sut.Next((3, 3)).Direction);
Assert.AreEqual('W', sut.Next((3, 0)).Direction);
Assert.AreEqual('W', sut.Next((2, 0)).Direction);
Assert.AreEqual('W', sut.Next((1, 0)).Direction);
Assert.IsNull(sut.Next((0, 0)));
}
public void MustAvoidIslandsInMiddle()
{
var gameProps = new GameProps {
Width = 4, Height = 4, MyId = 0
};
_console.Record("....");
_console.Record(".xx.");
_console.Record(".xx.");
_console.Record("....");
var mapScanner = new MapScanner(gameProps, _console);
PreComputedSpiralNavigator sut = new PreComputedSpiralNavigator(mapScanner, _console, false, gameProps);
var firstPosition = sut.First();
Assert.AreEqual((0, 0), firstPosition);
Assert.AreEqual('E', sut.Next((0, 0)).Direction);
Assert.AreEqual('S', sut.Next((3, 0)).Direction);
Assert.AreEqual('S', sut.Next((3, 2)).Direction);
Assert.AreEqual('N', sut.Next((0, 3)).Direction);
Assert.IsNull(sut.Next((0, 1)));
}