MeleeWeaponBehaviour

using System.Collections.Generic;
using UniRx;

public class MeleeWeaponBehaviour : WeaponBehaviour
{
    private Dictionary<Character, bool> _killedCharacters =  new Dictionary<Character, bool>();
    protected override void Awake()
    {
        base.Awake();

        _damager = GetComponentInChildren<Damager>();
        _damager.Damage = Data.DamageFromWeapon;
        _damager.Owner = _character.gameObject;
        _damager.OnGiveDamage.Subscribe(health => TakeDamage()).AddTo(this);
        _damager.OnFinalDamage.Subscribe(SendCharacterKillMessage).AddTo(this);

    }

    private void SendCharacterKillMessage(Health health)
    {
        var character = health.Owner.GetComponent<Character>();
        if (_killedCharacters.TryGetValue(character, out bool dead))
        {
            if (dead)
                return;
            _killedCharacters[character] = true;
        }
        else
        {
            _killedCharacters.Add(character, true);
        }

        character.Events.OnSpawn.Take(1).Subscribe(OnCharacterSpawned);
        _character.Events.OnKill.OnNext(character.gameObject);
    }

    private void OnCharacterSpawned(Character character)
    {
        _killedCharacters[character] = false;
    }
}