79 lines
2.9 KiB
C#
79 lines
2.9 KiB
C#
using CounterDrone.Core.Algorithms;
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using CounterDrone.Core.Models;
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using CounterDrone.Core.Simulation;
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using Xunit;
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namespace CounterDrone.Core.Tests
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{
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public class MunitionEntityTests
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{
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[Fact]
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public void GroundBased_DoesNotArriveImmediately()
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{
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var m = new MunitionEntity("m1", PlatformType.GroundBased,
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AerosolType.InertGas,
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startX: 0, startY: 0, startZ: 0,
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targetX: 5000, targetY: 300, targetZ: 0,
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muzzleVelocity: 500f, releaseAltitude: 300f);
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m.Update(0.05f);
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Assert.False(m.HasArrived, "炮弹不能第一帧就到达");
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}
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[Fact]
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public void GroundBased_ArrivesAtTargetPosition()
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{
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// 验证炮弹到达时，水平位置接近目标
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var m = new MunitionEntity("m1", PlatformType.GroundBased,
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AerosolType.InertGas,
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startX: 0, startY: 0, startZ: 0,
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targetX: 5000, targetY: 300, targetZ: 0,
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muzzleVelocity: 500f, releaseAltitude: 300f);
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for (int i = 0; i < 500; i++)
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{
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m.Update(0.05f);
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if (m.HasArrived) break;
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}
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Assert.True(m.HasArrived, "炮弹应到达");
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// 到达释放高度
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Assert.True(System.Math.Abs(m.PosY - 300f) < 5f, $"PosY={m.PosY:F1} 应≈300");
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// 水平位置接近目标
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var dist = System.Math.Sqrt(
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(m.PosX - m.TargetX) * (m.PosX - m.TargetX) +
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(m.PosZ - m.TargetZ) * (m.PosZ - m.TargetZ));
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Assert.True(dist < 1000f, $"到达点距目标 {dist:F0}m，应<1000m");
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}
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[Fact]
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public void GroundBased_LaunchAngle_ReachesReleaseAltitude()
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{
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// 验证运动学：给定距离和初速，弹道能达到释放高度
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var range = 5000f;
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var v0 = 500f;
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var releaseAlt = 300f;
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var angle = Kinematics.CalculateLaunchAngle(range, v0, releaseAlt);
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// 弹道顶点高度 >= 释放高度
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var peakH = v0 * v0 * (float)System.Math.Sin(angle) * (float)System.Math.Sin(angle) / (2f * 9.81f);
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Assert.True(peakH >= releaseAlt,
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$"弹道顶点 {peakH:F0}m ≥ 释放高度 {releaseAlt}m, angle={angle * 180 / System.Math.PI:F1}°");
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}
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[Fact]
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public void GroundBased_MovesForwardOverTime()
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{
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var m = new MunitionEntity("m1", PlatformType.GroundBased,
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AerosolType.InertGas,
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startX: 0, startY: 0, startZ: 0,
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targetX: 1000, targetY: 300, targetZ: 0,
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muzzleVelocity: 500f, releaseAltitude: 300f);
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m.Update(1f);
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var dist = System.Math.Sqrt(m.PosX * m.PosX + m.PosZ * m.PosZ);
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Assert.True(dist > 100f, "1秒后炮弹应水平移动 > 100m");
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}
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}
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}
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