public void MoveForward()
{
GridPoint newPosition;
switch (CompassCurrentOrientation)
{
case CompassDirection.NORTH:
newPosition = _planetTerrainGrid.AdvanceNorth(CurrentGridPosition);
break;
case CompassDirection.SOUTH:
newPosition = _planetTerrainGrid.AdvanceSouth(CurrentGridPosition);
break;
case CompassDirection.EAST:
newPosition = _planetTerrainGrid.AdvanceEast(CurrentGridPosition);
break;
case CompassDirection.WEST:
newPosition = _planetTerrainGrid.AdvanceWest(CurrentGridPosition);
break;
default:
newPosition = CurrentGridPosition;
break;
}
if (_planetTerrainGrid.ObstacleExists(newPosition))
{
return;
}
CurrentGridPosition = newPosition;
}
public void TestAdvanceNorthWhenAtEdgeOfGrid()
{
var originalPosition = new GridPoint(2, 9);
_terrainGridInstance = new TerrainGrid(10, 10);
var newPosition = _terrainGridInstance.AdvanceNorth(originalPosition);
Assert.IsTrue(newPosition.X == originalPosition.X);
Assert.IsTrue(newPosition.Y == 0);
}