Touhou/client/Assets/Game/Scripts/ECS/System/BulletSystem.cs

using Entitas;
using UnityEngine;
using Game;
public class BulletSystem : IExecuteSystem, IInitializeSystem
{
    private IGroup<GameEntity> _entities;
    public void Initialize()
    {
        _entities = Util.GetGroup(GameMatcher.Bullet);
    }
    public void Execute()
    {
        foreach (var entity in _entities)
        {
            if (Util.IsPause(entity))
            {
                continue;
            }
            UpdateBulletViewRot(entity);    // 更新子弹旋转
            // UpdateBullet(entity);
            UpdateBulletAlive(entity); //子弹销毁
        }
    }
    public void UpdateBulletAlive(GameEntity entity)
    {
        if (!entity.timeline.IsRunning)
        {
            //时间轴跑完
            Util.DestroyEntity(entity);
        }
        if (entity.move.IsAgainstWall)
        {
            //击中墙壁
            Util.DestroyEntity(entity);
        }
        if (entity.skill.HitSet.Count > 0)
        {
            //命中
            Util.DestroyEntity(entity);
        }
    }
    public void UpdateBulletViewRot(GameEntity entity)
    {
        var view = entity.view;
        var dir = entity.move.MoveDir;
        if (dir.magnitude > 0)
        {
            var rot = Quaternion.FromToRotation(Vector3.right, dir);
            view.TransformView.localRotation = rot;
        }
    }
}