public void NotEnoughSpaceForPlanetsCausesException(int size, int planets, int minDistance)
{
var generator = new GalaxyGenerator();
var settings = new GalaxyGeneratorSettings()
{
GalaxySize = size,
PlanetCount = planets,
MinimumDistanceBetweenPlanets = minDistance,
};
Assert.Throws <OutOfSpaceException>(() => generator.Generate(settings));
}
public void EachPlanetHasADistinctPosition()
{
var generator = new GalaxyGenerator();
var settings = new GalaxyGeneratorSettings()
{
GalaxySize = 800,
PlanetCount = 100,
};
var galaxy = generator.Generate(settings);
Assert.Equal(galaxy.Planets.Count, galaxy.Planets.Select(planet => planet.Position).Distinct().Count());
}
public void GalaxyHasCorrectSize(int size)
{
var generator = new GalaxyGenerator();
var settings = new GalaxyGeneratorSettings()
{
GalaxySize = size,
PlanetCount = 0,
};
var galaxy = generator.Generate(settings);
Assert.Equal(size, galaxy.Bounds.Size);
}
public void GalaxyHasCorrectNumberOfPlanets(int planets)
{
var generator = new GalaxyGenerator();
var settings = new GalaxyGeneratorSettings()
{
GalaxySize = 1000,
PlanetCount = planets,
};
var galaxy = generator.Generate(settings);
Assert.Equal(planets, galaxy.Planets.Count);
}
public void MinDistanceBetweenPlanetsIsValid(int size, int planets, int minDistance)
{
var generator = new GalaxyGenerator();
var settings = new GalaxyGeneratorSettings()
{
GalaxySize = size,
PlanetCount = planets,
MinimumDistanceBetweenPlanets = minDistance
};
var galaxy = generator.Generate(settings);
Assert.All(galaxy.Planets, planet => Assert.True(MinDistanceKept(planet)));
bool PassesSocialDistancingRule(Planet p1, Planet p2) => p1 != p2?p1.Position.DistanceTo(p2.Position) >= minDistance : true;
bool MinDistanceKept(Planet planet) => galaxy.Planets.All(otherPlanet => PassesSocialDistancingRule(planet, otherPlanet));
}
public void PlanetsHaveValidPositions(int size, int planets, int padding)
{
var generator = new GalaxyGenerator();
var settings = new GalaxyGeneratorSettings()
{
GalaxySize = size,
PlanetCount = planets,
Padding = padding,
};
var galaxy = generator.Generate(settings);
var bounds = new GalaxyBounds(size);
var min = bounds.Min + padding;
var max = bounds.Max - padding;
Assert.All(galaxy.Planets, planet => Assert.True(PointInRange(planet.Position)));
bool CoordInRange(int coord) => coord >= min && coord <= max;
bool PointInRange(Position position) => CoordInRange(position.X) && CoordInRange(position.Y);;
}
