123 lines
4.8 KiB
C#
123 lines
4.8 KiB
C#
using Barotrauma;
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using FluentAssertions;
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using Microsoft.Xna.Framework;
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using System;
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using Xunit;
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namespace TestProject;
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public class MathUtilsTests
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{
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[Fact]
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public void TestNearlyEquals()
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{
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MathUtils.NearlyEqual(0.0f, 0.0f).Should().BeTrue();
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MathUtils.NearlyEqual(-float.Epsilon, float.Epsilon).Should().BeTrue();
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MathUtils.NearlyEqual(0.1f + 0.2f, 0.3f).Should().BeTrue();
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MathUtils.NearlyEqual(-1.0f, 1.0f).Should().BeFalse();
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}
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[Fact]
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public void TestWrapAngle()
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{
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MathUtils.NearlyEqual(MathUtils.WrapAnglePi(0.0f), 0.0f).Should().BeTrue();
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CheckWrapAnglePiNearlyEqual(0, 0).Should().BeTrue();
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CheckWrapAnglePiNearlyEqual(-90, -90).Should().BeTrue();
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CheckWrapAnglePiNearlyEqual(-90, 90).Should().BeFalse();
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CheckWrapAnglePiNearlyEqual(-180, 180).Should().BeTrue();
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CheckWrapAnglePiNearlyEqual(-190.0f, 170.0f).Should().BeTrue();
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CheckWrapAnglePiNearlyEqual(-360, 0).Should().BeTrue();
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CheckWrapAnglePiNearlyEqual(360, 0).Should().BeTrue();
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bool CheckWrapAnglePiNearlyEqual(float wrappedDeg, float deg)
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{
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float wrappedRad = MathUtils.WrapAnglePi(MathHelper.ToRadians(wrappedDeg));
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float rad = MathHelper.ToRadians(deg);
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return MathUtils.NearlyEqual(wrappedRad, rad) || MathUtils.NearlyEqual(Math.Abs(wrappedRad - rad), MathHelper.TwoPi);
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}
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CheckWrapAngleTwoPiNearlyEqual(0, 0).Should().BeTrue();
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CheckWrapAngleTwoPiNearlyEqual(90, 90).Should().BeTrue();
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CheckWrapAngleTwoPiNearlyEqual(-90, 270).Should().BeTrue();
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CheckWrapAngleTwoPiNearlyEqual(180, 180).Should().BeTrue();
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CheckWrapAngleTwoPiNearlyEqual(360 * 5, 0).Should().BeTrue();
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CheckWrapAngleTwoPiNearlyEqual(-360, 0).Should().BeTrue();
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bool CheckWrapAngleTwoPiNearlyEqual(float wrappedDeg, float deg)
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{
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float wrappedRad = MathUtils.WrapAngleTwoPi(MathHelper.ToRadians(wrappedDeg));
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float rad = MathHelper.ToRadians(deg);
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return MathUtils.NearlyEqual(wrappedRad, rad) || MathUtils.NearlyEqual(Math.Abs(wrappedRad - rad), MathHelper.TwoPi);
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}
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CheckShortestAngleNearlyEqual(0.0f, 0.0f, 0.0f).Should().BeTrue();
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CheckShortestAngleNearlyEqual(0.0f, 90.0f, 90.0f).Should().BeTrue();
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CheckShortestAngleNearlyEqual(0.0f, 360.0f, 0.0f).Should().BeTrue();
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CheckShortestAngleNearlyEqual(0.0f, -365.0f, -5.0f).Should().BeTrue();
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CheckShortestAngleNearlyEqual(180.0f, -180.0f, 0.0f).Should().BeTrue();
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CheckShortestAngleNearlyEqual(-355.0f, 5.0f, 10.0f);
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bool CheckShortestAngleNearlyEqual(float deg1, float deg2, float angle)
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{
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return MathUtils.NearlyEqual(MathUtils.GetShortestAngle(MathHelper.ToRadians(deg1), MathHelper.ToRadians(deg2)), MathHelper.ToRadians(angle));
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}
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}
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[Fact]
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public void TestUpscaleVector2Array()
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{
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Vector2[,] inputArray = new Vector2[,]
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{
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{ new Vector2(0, 0), new Vector2(10, 10) },
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{ new Vector2(20, 20), new Vector2(30, 30) }
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};
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int newWidth = 4;
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int newHeight = 4;
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Vector2[,] result = MathUtils.ResizeVector2Array(inputArray, newWidth, newHeight);
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MathUtils.NearlyEqual(new Vector2(0, 0), result[0, 0]).Should().BeTrue();
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MathUtils.NearlyEqual(new Vector2(30, 30), result[3, 3]).Should().BeTrue();
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MathUtils.NearlyEqual(new Vector2(20, 20), result[2, 2]).Should().BeTrue();
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MathUtils.NearlyEqual(new Vector2(26.666666f, 26.666666f), result[3, 2]).Should().BeTrue();
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}
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[Fact]
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public void TestDownScaleVector2Array()
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{
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Vector2[,] inputArray = new Vector2[,]
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{
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{ new Vector2(0, 0), new Vector2(10, 10), new Vector2(20, 20) },
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{ new Vector2(30, 30), new Vector2(40, 40), new Vector2(50, 50) },
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{ new Vector2(60, 60), new Vector2(70, 70), new Vector2(80, 80) }
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};
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int newWidth = 2;
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int newHeight = 2;
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Vector2[,] result = MathUtils.ResizeVector2Array(inputArray, newWidth, newHeight);
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MathUtils.NearlyEqual(new Vector2(0, 0), result[0, 0]).Should().BeTrue();
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MathUtils.NearlyEqual(new Vector2(80, 80), result[1, 1]).Should().BeTrue();
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}
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[Fact]
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public void TestNoChangesToVector2Array()
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{
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Vector2[,] inputArray = new Vector2[,]
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{
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{ new Vector2(0, 0), new Vector2(10, 10) },
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{ new Vector2(20, 20), new Vector2(30, 30) }
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};
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int newWidth = 2;
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int newHeight = 2;
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Vector2[,] result = MathUtils.ResizeVector2Array(inputArray, newWidth, newHeight);
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MathUtils.NearlyEqual(new Vector2(0, 0), result[0, 0]).Should().BeTrue();
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MathUtils.NearlyEqual(new Vector2(30, 30), result[1, 1]).Should().BeTrue();
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}
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} |