Leonid PershinandClaude Opus 4.8
a684c23cd9
CI / build-test (push) Successful in 1m11s
Climate (Core) layers a continuous seasonal-plus-daily temperature and the current season over the Calendar, registered via context.UseClimate. A new Lighting module (Graphics) adds DayNight: a daylight factor and ambient color from the calendar's time of day, pushed into the renderer's new AmbientLight (multiplied into world-space sprites only, so the scene darkens at night while screen-space overlays stay readable) and exposed as a sampleable SampleAt for the simulation. Both deterministic and GPU-free, covered by tests; docs updated. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
85 lines
2.5 KiB
C#
85 lines
2.5 KiB
C#
using MrGameEng.Core;
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using Xunit;
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namespace MrGameEng.Core.Tests;
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public class ClimateTests
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{
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private static (GameClock Clock, Climate Climate) Make(ClimateSettings settings)
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{
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var clock = new GameClock();
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var calendar = new Calendar(clock, secondsPerDay: 10f);
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return (clock, new Climate(calendar, settings));
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}
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private static ClimateSettings Seasonal =>
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new()
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{
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DaysPerYear = 60,
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MeanTemperature = 10f,
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SeasonalAmplitude = 20f,
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DailyAmplitude = 0f,
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WarmestDay = 15,
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};
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[Fact]
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public void Constructor_NonPositiveYear_Throws()
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{
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Assert.Throws<ArgumentOutOfRangeException>(() =>
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new Climate(new Calendar(new GameClock(), 10f), Seasonal with { DaysPerYear = 0 })
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);
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}
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[Fact]
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public void Temperature_PeaksOnWarmestDay_AndBottomsHalfYearLater()
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{
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var (clock, climate) = Make(Seasonal);
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clock.Advance(15 * 10f); // day 15 = warmest
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Assert.Equal(30f, climate.Temperature, 2); // mean 10 + amplitude 20
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clock.Advance(30 * 10f); // +30 days = half a 60-day year later
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Assert.Equal(-10f, climate.Temperature, 2); // mean 10 - amplitude 20
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}
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[Fact]
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public void DailySwing_WarmerAtNoonThanMidnight()
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{
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var settings = Seasonal with { SeasonalAmplitude = 0f, DailyAmplitude = 6f };
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var (clock, climate) = Make(settings);
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clock.Advance(5f); // day 0, noon (DayProgress 0.5)
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Assert.Equal(16f, climate.Temperature, 2); // mean 10 + daily 6
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clock.Advance(5f); // day 1, midnight (DayProgress 0)
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Assert.Equal(4f, climate.Temperature, 2); // mean 10 - daily 6
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}
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[Fact]
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public void Season_FollowsTheQuarterOfTheYear()
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{
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var (clock, climate) = Make(Seasonal); // 60-day year → 15 days per season
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Assert.Equal(Season.Spring, climate.Season);
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clock.Advance(20 * 10f);
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Assert.Equal(Season.Summer, climate.Season);
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clock.Advance(15 * 10f);
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Assert.Equal(Season.Autumn, climate.Season);
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clock.Advance(15 * 10f);
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Assert.Equal(Season.Winter, climate.Season);
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}
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[Fact]
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public void YearAndDayOfYear_RollOver()
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{
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var (clock, climate) = Make(Seasonal);
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Assert.Equal(1, climate.Year);
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Assert.Equal(0, climate.DayOfYear);
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clock.Advance(60 * 10f); // exactly one year
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Assert.Equal(2, climate.Year);
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Assert.Equal(0, climate.DayOfYear);
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}
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}
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