public static PositionSystem Instance()
{
if (instance == null)
{
instance = new PositionSystem();
}
return(instance);
}
public void Path_DifferentMaps_ReturnsNull()
{
PositionSystem testPositionSystem = SetUpTestPositionSystemWithPathfindingAlgorithm(out IPathfindingAlgorithm pathfindingAlgorithm);
MapCoordinate from = GetTestMapCoordinate(x: 0, y: 0);
MapCoordinate to = GetTestMapCoordinate(key: "DIFFERENT_MAP", x: 1, y: 0);
var result = testPositionSystem.Path(from, to);
pathfindingAlgorithm.Path(Arg.Any <IMap>(), from, to).Received(0);
result.Should().BeNull();
}
public void Path_CallsPathfindingAlgorithm()
{
PositionSystem testPositionSystem = SetUpTestPositionSystemWithPathfindingAlgorithm(out IPathfindingAlgorithm pathfindingAlgorithm);
MapCoordinate from = GetTestMapCoordinate(x: 0, y: 0);
MapCoordinate to = GetTestMapCoordinate(x: 1, y: 0);
testPositionSystem.Path(from, to);
pathfindingAlgorithm.Path(Arg.Any <IMap>(), from, to).Received(1);
}
private static PositionSystem SetUpTestPositionSystemWithPathfindingAlgorithm(out IPathfindingAlgorithm pathfindingAlgorithm)
{
pathfindingAlgorithm = Substitute.For <IPathfindingAlgorithm>();
IEntityEngine entityEngine = Substitute.For <IEntityEngine>();
IMapSystem mapSystem = Substitute.For <IMapSystem>();
mapSystem.MapCollection.Returns(new Atlas()
{
{ new MapKey(TEST_MAP_NAME), Substitute.For <IMap>() }
});
var testPositionSystem = new PositionSystem(mapSystem, entityEngine, pathfindingAlgorithm);
return(testPositionSystem);
}
