ActiveProtect/src/Models/MIssile/LaserBeamRiderMissile.cs

using ActiveProtect.Simulation;
using ActiveProtect.Utility;
namespace ActiveProtect.Models
{
    public class LaserBeamRiderMissile : MissileBase
    {
        /// <summary>
        /// 激光驾束制导导弹阶段
        /// </summary>
        private enum LBRM_Stage
        {
            Launch, // 发射阶段
            Cruise, // 巡航阶段
            Explode, // 爆炸阶段
            SelfDestruct // 自毁阶段
        }

        /// <summary>
        /// 当前阶段
        /// </summary>
        private LBRM_Stage currentStage;

        /// <summary>
        /// 激光驾束制导系统
        /// </summary>
        private readonly LaserBeamRiderGuidanceSystem LaserBeamRiderGuidanceSystem;

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="config">导弹配置</param>
        /// <param name="manager">模拟管理器</param>
        public LaserBeamRiderMissile(MissileConfig config, ISimulationManager manager)
            : base(config, manager)
        {
            LaserBeamRiderGuidanceSystem = new LaserBeamRiderGuidanceSystem(config.MaxAcceleration, config.ProportionalNavigationCoefficient);
            currentStage = LBRM_Stage.Launch;
        }

        /// <summary>
        /// 激光束开启事件
        /// </summary>
        /// <param name="evt">激光束开启事件</param>
        private void OnLaserBeamStart(LaserBeamStartEvent evt)
        {
            if (evt?.LaserBeamRider != null)
            {
                LaserBeamRiderGuidanceSystem?.UpdateLaserBeamRider(evt.LaserBeamRider.Position, evt.LaserBeamRider.LaserDirection, evt.LaserBeamRider.LaserPower);
            }
        }

        /// <summary>
        /// 激光束更新事件
        /// </summary>
        /// <param name="evt">激光束更新事件</param>
        private void OnLaserBeamUpdate(LaserBeamUpdateEvent evt)
        {
            if (evt?.LaserBeamRider != null)
            {
                LaserBeamRiderGuidanceSystem?.UpdateLaserBeamRider(evt.LaserBeamRider.Position, evt.LaserBeamRider.LaserDirection, evt.LaserBeamRider.LaserPower);
            }
        }

        /// <summary>
        /// 激光束停止事件
        /// </summary>
        /// <param name="evt">激光束停止事件</param>
        private void OnLaserBeamStop(LaserBeamStopEvent evt)
        {
            if (evt?.LaserBeamRider != null)
            {
                LaserBeamRiderGuidanceSystem?.DeactivateLaserBeam();
            }
        }

        /// <summary>
        /// 更新导弹
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        public override void Update(double deltaTime)
        {
            switch (currentStage)
            {
                case LBRM_Stage.Launch:
                    UpdateLaunchStage(deltaTime);
                    break;
                case LBRM_Stage.Cruise:
                    UpdateCruiseStage(deltaTime);
                    break;
                case LBRM_Stage.Explode:
                    UpdateExplodeStage(deltaTime);
                    break;
                case LBRM_Stage.SelfDestruct:
                    UpdateSelfDestructStage(deltaTime);
                    break;
            }

            base.Update(deltaTime);
        }

        /// <summary>
        /// 更新发射阶段
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        private void UpdateLaunchStage(double deltaTime)
        {
            // 发射阶段
            GuidanceAcceleration = Vector3D.Zero;
            if (FlightTime >= 0.01)
            {
                currentStage = LBRM_Stage.Cruise;
            }
        }

        /// <summary>
        /// 更新巡航阶段
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        private void UpdateCruiseStage(double deltaTime)
        {
            // 巡航阶段
            LaserBeamRiderGuidanceSystem.Update(deltaTime, Position, Velocity);
            GuidanceAcceleration = LaserBeamRiderGuidanceSystem.GetGuidanceAcceleration();
            if (DistanceToTarget <= ExplosionRadius)
            {
                currentStage = LBRM_Stage.Explode;
            }
            if(ShouldSelfDestruct())
            {
                currentStage = LBRM_Stage.SelfDestruct;
            }
        }

        /// <summary>
        /// 更新爆炸阶段
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        private void UpdateExplodeStage(double deltaTime)
        {
            // 爆炸阶段
            Explode();
        }

        /// <summary>
        /// 更新自毁阶段
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        private void UpdateSelfDestructStage(double deltaTime)
        {
            // 自毁阶段
            SelfDestruct();
        }

        /// <summary>
        /// 获取导弹状态
        /// </summary>
        /// <returns>导弹状态</returns>
        public override string GetStatus()
        {
            string baseStatus = base.GetStatus().Replace("导弹", "激光驾束制导导弹");
            string additionalStatus = LaserBeamRiderGuidanceSystem.HasGuidance ? LaserBeamRiderGuidanceSystem.GetStatus() : "";
            return baseStatus + additionalStatus;
        }

        /// <summary>
        /// 激活导弹
        /// </summary>
        public override void Activate()
        {
            base.Activate();
            SimulationManager.SubscribeToEvent<LaserBeamStartEvent>(OnLaserBeamStart);
            SimulationManager.SubscribeToEvent<LaserBeamStopEvent>(OnLaserBeamStop);
            SimulationManager.SubscribeToEvent<LaserBeamUpdateEvent>(OnLaserBeamUpdate);
        }

        /// <summary>
        /// 关闭导弹
        /// </summary>
        public override void Deactivate()
        {
            base.Deactivate();
            SimulationManager.UnsubscribeFromEvent<LaserBeamStartEvent>(OnLaserBeamStart);
            SimulationManager.UnsubscribeFromEvent<LaserBeamStopEvent>(OnLaserBeamStop);
            SimulationManager.UnsubscribeFromEvent<LaserBeamUpdateEvent>(OnLaserBeamUpdate);
        }
    }
}