tbd-station-14/Content.Shared/MobState/State/SharedDeadMobState.cs

using Content.Shared.Hands;
using Content.Shared.Standing;
using Robust.Shared.GameObjects;

namespace Content.Shared.MobState.State
{
    public abstract class SharedDeadMobState : BaseMobState
    {
        protected override DamageState DamageState => DamageState.Dead;

        public override void EnterState(IEntity entity)
        {
            base.EnterState(entity);
            var wake = entity.EnsureComponent<CollisionWakeComponent>();
            wake.Enabled = true;
            var standingState = EntitySystem.Get<StandingStateSystem>();
            standingState.Down(entity.Uid);

            if (standingState.IsDown(entity.Uid) && entity.TryGetComponent(out PhysicsComponent? physics))
            {
                physics.CanCollide = false;
            }

            if (entity.TryGetComponent(out SharedAppearanceComponent? appearance))
            {
                appearance.SetData(DamageStateVisuals.State, DamageState.Dead);
            }
        }

        public override void ExitState(IEntity entity)
        {
            base.ExitState(entity);
            if (entity.HasComponent<CollisionWakeComponent>())
            {
                entity.RemoveComponent<CollisionWakeComponent>();
            }

            var standingState = EntitySystem.Get<StandingStateSystem>();
            standingState.Stand(entity.Uid);

            if (!standingState.IsDown(entity.Uid) && entity.TryGetComponent(out PhysicsComponent? physics))
            {
                physics.CanCollide = true;
            }
        }
    }
}