87 lines
3.4 KiB
C#
87 lines
3.4 KiB
C#
using UnityEngine;
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using Platformer.Mechanics;
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namespace EerieVillage.Skills.Effectors
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{
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/// <summary>
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/// 투사체 생성기. IEffector 구현체.
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/// SkillFireEvent.Execute 에서 ActiveCategory.Projectile 분기 시 호출.
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/// BT12-Dev Phase 2-B §4-4.
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///
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/// 다중 발사: PlayerStats.ExtraProjectiles 반영 (P08 투사체증폭).
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/// 궤적 분기: ActiveSkillData.Trajectory — Line → Projectile, Homing → HomingProjectile.
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/// </summary>
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public class ProjectileSpawner : IEffector
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{
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public void Trigger(ActiveSkillRuntime runtime, PlayerSkillInventory inventory)
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{
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var data = runtime.ActiveData;
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// 플레이어 위치·방향 취득
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Transform playerTransform = inventory.transform;
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Vector2 spawnPos = playerTransform.position;
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// PlayerController.Facing 참조
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Vector2 facing = Vector2.right;
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var pc = inventory.GetComponent<PlayerController>();
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if (pc != null) facing = pc.Facing;
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// 프리팹 로드
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GameObject prefab = LoadProjectilePrefab(data);
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if (prefab == null)
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{
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Debug.LogWarning($"[ProjectileSpawner] 투사체 프리팹 로드 실패 (data.id={data.CardId})");
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return;
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}
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// 다중 발사 수 (기본 1 + ExtraProjectiles)
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int count = 1 + Mathf.Max(0, inventory.Stats.ExtraProjectiles);
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float angleStep = count > 1 ? 10f : 0f;
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float startAngle = -angleStep * (count - 1) * 0.5f;
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for (int i = 0; i < count; i++)
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{
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float angle = startAngle + angleStep * i;
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Vector2 dir = RotateVector(facing, angle);
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var go = Object.Instantiate(prefab, (Vector3)spawnPos, Quaternion.identity);
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Projectile proj;
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if (data.Trajectory == ProjectileTrajectory.Homing)
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proj = go.GetComponent<HomingProjectile>() ?? go.AddComponent<HomingProjectile>();
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else
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proj = go.GetComponent<Projectile>() ?? go.AddComponent<Projectile>();
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proj.Initialize(runtime, inventory, dir);
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}
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}
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/// <summary>
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/// 투사체 프리팹 로드.
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/// Phase 2-C 에서 data.projectilePrefab 필드를 추가하면 해당 경로 우선 사용.
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/// 현재는 Resources/Skills/Projectiles/Default 폴백.
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/// 폴백 실패 시 Collider2D 부착 빈 오브젝트를 반환한다.
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/// </summary>
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private static GameObject LoadProjectilePrefab(ActiveSkillData data)
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{
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var prefab = Resources.Load<GameObject>("Skills/Projectiles/Default");
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if (prefab != null) return prefab;
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// 폴백 — 빈 오브젝트 + CircleCollider2D (시각 없음, 판정만)
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var go = new GameObject($"Projectile_{data.CardId}");
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var col = go.AddComponent<CircleCollider2D>();
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col.isTrigger = true;
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col.radius = 0.2f;
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return go;
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}
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private static Vector2 RotateVector(Vector2 v, float degrees)
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{
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float rad = degrees * Mathf.Deg2Rad;
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float cos = Mathf.Cos(rad);
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float sin = Mathf.Sin(rad);
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return new Vector2(v.x * cos - v.y * sin, v.x * sin + v.y * cos);
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}
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}
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}
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