public IEnumerable <EnvironmentalWorld> Ticks(EnvironmentalWorld world)
{
yield return(world);
var nextGrid = Task.Run(() => world.Data.Grid.Cells.AsParallel().Select((row, outerInd) =>
row.AsParallel().Select((_, innerInd) =>
world.CellCalculator.CalculateCell(
world.Data.Grid.Cells[outerInd][innerInd],
world.NeighbourFinder.FindNeighbours(world.Data.Grid, outerInd, innerInd),
world.Data)).ToArray()).ToArray());
var herbivoreDensity = Task.Run(() =>
(double)world.Data.Grid.Cells.SelectMany(row => row).Where(c => c.IsAlive).Count(c => c.Diet == DietaryRestriction.Herbivore)
/ (world.Data.Grid.Cells.Count * world.Data.Grid.Cells.Count));
var nextSeason = Task.Run(() => world.SeasonCalculator.GetSeasonOfNextTick(world.Data.Season));
var nextTemperature = Task.Run(() => world.SeasonCalculator.CalculateTemperature(world.Data.Season));
var data = new EnvironmentalWorldData
{
Generation = world.Data.Generation + 1,
Grid = new EnvironmentalCellGrid(nextGrid.Result),
HerbivoreDensity = new Density(herbivoreDensity.Result),
Season = nextSeason.Result,
Temperature = nextTemperature.Result
};
var nextWorld = new EnvironmentalWorldBuilder(world).With(w => w.Data, data).Create();
foreach (var tick in Ticks(nextWorld))
{
yield return(tick);
}
}
public void Ticks_OneAlive_100Generations_AllDead()
{
// arrange
var worldGenerator = new EnvironmentalWorldGenerator();
var cellGrid = new EnvironmentalCellGrid
(
new[]
{
new[] { Dead(), Dead(), Dead() },
new[] { Dead(), Alive(), Dead() },
new[] { Dead(), Dead(), Dead() }
}
);
var world = new EnvironmentalWorldBuilder().With(w => w.Data, new EnvironmentalWorldData {
Grid = cellGrid
}).Create();
var expected = new EnvironmentalCellGrid(EnumerablePrelude.Repeat(() => EnumerablePrelude.Repeat(Dead, 3).ToArray(), 3).ToArray());
// act
var result = worldGenerator.Ticks(world).Skip(100).First().Data.Grid;
// assert
Assert.AreEqual(GridToString(expected), GridToString(result));
}
public void Ticks_WithOscillating_100Generations_IsSame()
{
// arrange
var worldGenerator = new EnvironmentalWorldGenerator();
var cellGrid = new EnvironmentalCellGrid
(
new[]
{
new[] { Dead(), Dead(), Dead(), Dead() },
new[] { Dead(), Alive(), Alive(), Dead() },
new[] { Dead(), Alive(), Alive(), Dead() },
new[] { Dead(), Dead(), Dead(), Dead() }
}
);
var world = new EnvironmentalWorldBuilder().With(w => w.Data, new EnvironmentalWorldData {
Grid = cellGrid
}).Create();
// act
var result = worldGenerator.Ticks(world).Skip(100).First().Data.Grid;
// assert
Assert.AreEqual(GridToString(cellGrid), GridToString(result));
}
