Colosseum/Assets/_Game/Scripts/Network/PlayerSpawnPoint.cs

using UnityEngine;

namespace Colosseum.Network
{
    /// <summary>
    /// 플레이어 스폰 위치 마커
    /// 씬에 배치하여 플레이어가 스폰될 위치를 지정
    /// Round-Robin 순차 할당으로 중복 스폰 방지
    /// </summary>
    public class PlayerSpawnPoint : MonoBehaviour
    {
        [Header("Spawn Settings")]
        [SerializeField] private bool useRotation = true;

        private static readonly System.Collections.Generic.List<PlayerSpawnPoint> spawnPoints = new System.Collections.Generic.List<PlayerSpawnPoint>();
        private static int nextSpawnIndex;

        private void Awake()
        {
            spawnPoints.Add(this);
        }

        private void OnDestroy()
        {
            spawnPoints.Remove(this);
        }

        /// <summary>
        /// Round-Robin 순차 할당 — 접속 순서대로 순환하며 중복 없이 반환
        /// </summary>
        public static Transform GetNextSpawnPoint()
        {
            if (spawnPoints.Count == 0)
                return null;

            int index = nextSpawnIndex % spawnPoints.Count;
            nextSpawnIndex++;
            return spawnPoints[index].transform;
        }

        /// <summary>
        /// 사용 가능한 스폰 포인트 중 하나를 반환 (기존 호환용, 내부적으로 Round-Robin 사용)
        /// </summary>
        public static Transform GetRandomSpawnPoint() => GetNextSpawnPoint();

        /// <summary>
        /// 스폰 포인트 개수 반환
        /// </summary>
        public static int SpawnPointCount => spawnPoints.Count;

        private void OnDrawGizmos()
        {
            Gizmos.color = Color.green;
            Gizmos.DrawWireSphere(transform.position, 0.5f);
            Gizmos.color = Color.blue;
            Gizmos.DrawLine(transform.position, transform.position + transform.forward * 1.5f);

            // 화살표 머리
            Vector3 arrowPos = transform.position + transform.forward * 1.5f;
            Gizmos.DrawLine(arrowPos, arrowPos - transform.forward * 0.3f + transform.right * 0.2f);
            Gizmos.DrawLine(arrowPos, arrowPos - transform.forward * 0.3f - transform.right * 0.2f);
        }
    }
}