320 lines
11 KiB
C#
320 lines
11 KiB
C#
using ThreatSource.Simulation;
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using ThreatSource.Guidance;
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using ThreatSource.Utils;
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using ThreatSource.Equipment;
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namespace ThreatSource.Missile
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{
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/// <summary>
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/// 红外成像末制导导弹类，继承自基础导弹类
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/// </summary>
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/// <remarks>
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/// 该类提供了红外成像末制导导弹的完整实现：
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/// - 继承自BaseMissile，具备基本的导弹功能
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/// - 实现了红外成像制导系统
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/// - 支持多阶段飞行控制
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/// - 具备红外目标识别能力
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/// - 提供精确的末制导打击能力
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///
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/// 工作流程：
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/// 1. 导弹发射并进入发射阶段
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/// 2. 切换到巡航阶段，进行中程飞行
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/// 3. 进入末制导阶段，启动红外成像制导
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/// 4. 接近目标后引爆或达到自毁条件后自毁
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/// </remarks>
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public class InfraredImagingTerminalGuidedMissile : BaseMissile
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{
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/// <summary>
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/// 红外成像末制导导弹的飞行阶段枚举
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/// </summary>
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/// <remarks>
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/// 定义了导弹的工作阶段：
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/// - Launch: 发射阶段，初始加速
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/// - Cruise: 巡航阶段，中程飞行
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/// - TerminalSearch: 末制导搜索阶段，大视场角搜索目标
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/// - TerminalTrack: 末制导跟踪阶段，小视场角精确跟踪
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/// - TerminalLock: 末制导锁定阶段，目标确认后的精确跟踪
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/// </remarks>
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private enum IRTG_Stage
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{
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Launch, // 发射阶段
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Cruise, // 巡航阶段
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TerminalSearch, // 末制导搜索阶段
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TerminalTrack, // 末制导跟踪阶段
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TerminalLock // 末制导锁定阶段
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}
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/// <summary>
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/// 导弹当前的飞行阶段
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/// </summary>
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/// <remarks>
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/// 用于控制导弹的行为状态
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/// 在不同阶段执行不同的更新逻辑
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/// </remarks>
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private IRTG_Stage currentStage;
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/// <summary>
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/// 红外成像制导系统实例
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/// </summary>
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/// <remarks>
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/// 负责处理红外图像信息
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/// 计算制导指令
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/// 控制导弹的飞行路径
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/// </remarks>
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private readonly InfraredImagingGuidanceSystem guidanceSystem;
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/// <summary>
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/// 末制导开始距离，单位：米
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/// </summary>
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/// <remarks>
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/// 当导弹与目标的距离小于此值时
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/// 导弹将进入末制导阶段
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/// 启动红外成像制导系统
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/// </remarks>
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private const double TERMINAL_GUIDANCE_DISTANCE = 1000;
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/// <summary>
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/// 初始化红外成像末制导导弹的新实例
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/// </summary>
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/// <param name="missileId">导弹ID</param>
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/// <param name="targetType">目标类型</param>
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/// <param name="properties">导弹属性配置</param>
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/// <param name="launchParams">发射参数</param>
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/// <param name="guidanceConfig">红外成像导引配置</param>
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/// <param name="manager">仿真管理器实例</param>
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/// <remarks>
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/// 构造过程：
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/// - 初始化基本属性
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/// - 创建制导系统
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/// - 配置制导参数
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/// - 设置初始飞行阶段
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/// </remarks>
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public InfraredImagingTerminalGuidedMissile(
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string missileId,
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EquipmentType targetType,
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MissileProperties properties,
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KinematicState launchParams,
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InfraredImagingGuidanceConfig guidanceConfig,
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ISimulationManager manager)
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: base(missileId, properties, launchParams, manager)
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{
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guidanceSystem = new InfraredImagingGuidanceSystem(
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missileId + "_guidance",
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missileId,
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guidanceConfig,
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targetType,
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properties.MaxAcceleration,
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properties.ProportionalNavigationCoefficient,
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manager
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);
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}
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/// <summary>
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/// 更新导弹的状态
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/// </summary>
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/// <param name="deltaTime">时间步长，单位：秒</param>
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/// <remarks>
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/// 更新过程：
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/// 1. 调用基类的更新方法
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/// 2. 根据当前阶段选择更新方法
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/// 3. 执行相应阶段的更新逻辑
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/// 4. 检查是否需要自毁
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/// </remarks>
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public override void Update(double deltaTime)
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{
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switch (currentStage)
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{
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case IRTG_Stage.Launch:
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UpdateLaunchStage(deltaTime);
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break;
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case IRTG_Stage.Cruise:
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UpdateCruiseStage(deltaTime);
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break;
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case IRTG_Stage.TerminalSearch:
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UpdateTerminalSearchStage(deltaTime);
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break;
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case IRTG_Stage.TerminalTrack:
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UpdateTerminalTrackStage(deltaTime);
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break;
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case IRTG_Stage.TerminalLock:
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UpdateTerminalLockStage(deltaTime);
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break;
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}
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base.Update(deltaTime);
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}
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/// <summary>
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/// 更新发射阶段的状态
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/// </summary>
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/// <param name="deltaTime">时间步长，单位：秒</param>
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/// <remarks>
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/// 发射阶段特点：
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/// - 不使用制导加速度
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/// - 仅依靠发动机推力
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/// - 持续时间为1秒
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/// - 结束后进入巡航阶段
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/// </remarks>
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private void UpdateLaunchStage(double deltaTime)
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{
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GuidanceAcceleration = Vector3D.Zero;
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if (FlightTime > Properties.MaxEngineBurnTime) // 假设发射阶段持续1秒
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{
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currentStage = IRTG_Stage.Cruise;
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}
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}
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/// <summary>
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/// 更新巡航阶段的状态
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/// </summary>
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/// <param name="deltaTime">时间步长，单位：秒</param>
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/// <remarks>
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/// 巡航阶段特点：
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/// - 保持稳定飞行
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/// - 不使用制导系统
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/// - 达到巡航时间后进入末制导搜索阶段
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/// </remarks>
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private void UpdateCruiseStage(double deltaTime)
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{
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// 如果巡航时间达到，切换到末制导搜索阶段
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if (FlightTime > Properties.CruiseTime)
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{
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currentStage = IRTG_Stage.TerminalSearch;
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guidanceSystem.Activate(); // 激活制导系统
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guidanceSystem.SwitchToSearchMode(); // 切换到搜索模式
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currentStage = IRTG_Stage.TerminalSearch;
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}
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}
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/// <summary>
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/// 更新末制导搜索阶段的状态
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/// </summary>
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/// <param name="deltaTime">时间步长，单位：秒</param>
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/// <remarks>
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/// 搜索阶段特点：
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/// - 大视场角（6-8度）搜索目标
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/// - 进行目标检测和初步识别
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/// - 发现目标后切换到跟踪阶段
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/// </remarks>
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private void UpdateTerminalSearchStage(double deltaTime)
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{
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guidanceSystem.Update(deltaTime);
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GuidanceAcceleration = guidanceSystem.GetGuidanceAcceleration();
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IsGuidance = guidanceSystem.HasGuidance;
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// 如果发现并识别出目标，切换到跟踪阶段
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if (guidanceSystem.HasTarget)
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{
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currentStage = IRTG_Stage.TerminalTrack;
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}
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}
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/// <summary>
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/// 更新末制导跟踪阶段的状态
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/// </summary>
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/// <param name="deltaTime">时间步长，单位：秒</param>
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/// <remarks>
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/// 跟踪阶段特点：
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/// - 小视场角（2-3度）精确跟踪
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/// - 高精度目标识别和特征提取
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/// - 目标确认后切换到锁定阶段
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/// - 如果失去目标则返回搜索阶段
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/// </remarks>
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private void UpdateTerminalTrackStage(double deltaTime)
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{
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guidanceSystem.Update(deltaTime);
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GuidanceAcceleration = guidanceSystem.GetGuidanceAcceleration();
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IsGuidance = guidanceSystem.HasGuidance;
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// 如果失去目标，切换回搜索阶段
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if (!guidanceSystem.HasTarget)
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{
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currentStage = IRTG_Stage.TerminalSearch;
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}
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// 当制导系统进入锁定模式时，导弹也切换到锁定阶段
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else if (guidanceSystem.IsInLockMode)
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{
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currentStage = IRTG_Stage.TerminalLock;
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}
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}
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/// <summary>
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/// 更新末制导锁定阶段的状态
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/// </summary>
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/// <param name="deltaTime">时间步长，单位：秒</param>
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/// <remarks>
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/// 锁定阶段特点：
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/// - 目标类型已确认
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/// - 专注于位置跟踪
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/// - 如果失去目标则返回搜索阶段
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/// </remarks>
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private void UpdateTerminalLockStage(double deltaTime)
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{
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guidanceSystem.Update(deltaTime);
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GuidanceAcceleration = guidanceSystem.GetGuidanceAcceleration();
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IsGuidance = guidanceSystem.HasGuidance;
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if (!guidanceSystem.HasTarget)
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{
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currentStage = IRTG_Stage.TerminalSearch;
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}
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}
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/// <summary>
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/// 发射导弹
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/// </summary>
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/// <remarks>
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/// 发射过程：
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/// - 调用基类发射方法
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/// - 设置当前阶段为发射阶段
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/// </remarks>
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public override void Fire()
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{
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base.Fire();
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currentStage = IRTG_Stage.Launch;
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}
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/// <summary>
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/// 激活导弹
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/// </summary>
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/// <remarks>
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/// 激活过程：
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/// - 调用基类激活方法
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/// - 激活制导系统
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/// </remarks>
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public override void Activate()
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{
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base.Activate();
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guidanceSystem.Activate();
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}
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/// <summary>
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/// 停用导弹
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/// </summary>
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/// <remarks>
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/// 停用过程：
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/// - 调用基类停用方法
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/// - 停用制导系统
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/// </remarks>
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public override void Deactivate()
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{
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base.Deactivate();
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guidanceSystem.Deactivate();
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}
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/// <summary>
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/// 获取导弹状态信息
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/// </summary>
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/// <returns>包含导弹状态的详细描述</returns>
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/// <remarks>
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/// 返回信息包括：
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/// - 基本状态信息
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/// - 当前飞行阶段
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/// </remarks>
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public override ElementStatusInfo GetStatusInfo()
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{
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var statusInfo = base.GetStatusInfo();
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statusInfo.ExtendedProperties["CurrentStage"] = currentStage.ToString();
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return statusInfo;
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}
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}
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}
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