67 lines
2.2 KiB
C#
67 lines
2.2 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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[RequireComponent(typeof(CircleCollider2D))]
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public class AttackHitbox : MonoBehaviour
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{
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private CircleCollider2D _collider;
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private int _damage;
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private Vector2 _hitVelocity;
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private string _hitReactionState;
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private LayerMask _targetLayer;
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private readonly HashSet<IDamageable> _alreadyHit = new();
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private void Awake()
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{
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_collider = GetComponent<CircleCollider2D>();
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// 플레이어 몸체는 적과 물리 충돌하지 않으므로, 공격 판정은 이 트리거만 사용한다.
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_collider.isTrigger = true;
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_collider.enabled = false;
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}
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public void Activate(ActionData data, Vector2 localPosition, Vector2 hitVelocity, LayerMask targetLayer)
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{
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transform.localPosition = localPosition;
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_collider.radius = data.Radius;
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_damage = data.Damage;
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_hitVelocity = hitVelocity;
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_hitReactionState = data.HitReactionAnimationState;
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_targetLayer = targetLayer;
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_alreadyHit.Clear();
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_collider.enabled = true;
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// 판정이 켜진 순간 이미 범위 안에 있던 적도 같은 프레임에 잡아낸다.
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ScanImmediateOverlap();
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}
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public void Deactivate()
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{
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_collider.enabled = false;
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_alreadyHit.Clear();
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}
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private void ScanImmediateOverlap()
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{
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Collider2D[] hits = Physics2D.OverlapCircleAll(transform.position, _collider.radius, _targetLayer);
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foreach (var hit in hits)
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TryDamage(hit);
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}
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private void OnTriggerEnter2D(Collider2D other) => TryDamage(other);
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private void OnTriggerStay2D(Collider2D other) => TryDamage(other);
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private void TryDamage(Collider2D other)
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{
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if ((_targetLayer.value & (1 << other.gameObject.layer)) == 0) return;
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// 피격 콜라이더는 자식에 있고, 데미지 처리는 루트에 있을 수 있다.
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if (!other.TryGetComponent<IDamageable>(out var target))
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target = other.GetComponentInParent<IDamageable>();
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if (target == null) return;
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if (_alreadyHit.Contains(target)) return;
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_alreadyHit.Add(target);
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target.TakeDamage(_damage, _hitVelocity, _hitReactionState);
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}
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}
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