public void MarkArea(MapLocation from, MapLocation to, long fillValue, bool inclusive)
{
var difference = from - to;
// Check where we need to fill in the gap
if (difference.Abs() > 1)
{
var incrementor = difference.Normalized().Abs();
// If the requested location is going in the negative direction then we need our incrementor
// to also be pointing in the negative direction.
if (difference > 0)
{
incrementor *= -1;
}
// If we're not inclusive then we want to step back one more (chances are our actual position is out of bounds)
if (!inclusive)
{
to -= incrementor;
}
// We do not want to mark the current location "to" because that's our new headlocation
for (MapLocation i = from + incrementor; !i.SameAs(to); i += incrementor)
{
Debug.WriteLine("Marking: " + i + " with " + fillValue);
_map[i.Row, i.Column] = fillValue;
}
}
}
public void MarksMapSpaceFillsMapCorrectlyInclusive()
{
var headLocation = new MapLocation(50, 50);
var newLocation = new MapLocation(50, 54);
var fillValue = 1;
var inclusive = true;
var map = new Map(gameConfig.MapConfig);
var mapMarker = new MapMarker(map);
var incrementor = new MapLocation(0, 1);
map[headLocation] = -1;
mapMarker.MarkArea(headLocation, newLocation, fillValue, inclusive);
Assert.Equal(map[newLocation], 0);
Assert.Equal(map[headLocation], -1);
for (MapLocation i = headLocation + incrementor; !i.SameAs(newLocation); i += incrementor)
{
Assert.Equal(map[i], fillValue);
}
}
