using UnityEngine;
using System.Collections.Generic;

/// <summary>
/// Tank decor (rocks, corals) that fish steer around. Registers its renderer bounds, slightly padded,
/// for PaperFishController's look-ahead and wander-point checks.
/// </summary>
public class FishObstacle : MonoBehaviour
{
    public static readonly List<Bounds> All = new List<Bounds>();
    [Tooltip("Shrink (below 1) or grow the registered box; rocks are lumpy, so their boxes are a bit generous as-is.")]
    public float boundsScale = 0.85f;
    Bounds registered; bool added;

    void OnEnable()
    {
        var rs = GetComponentsInChildren<Renderer>();
        if (rs.Length == 0) return;
        var b = rs[0].bounds;
        foreach (var r in rs) b.Encapsulate(r.bounds);
        b.extents *= boundsScale;
        registered = b; All.Add(b); added = true;
    }

    void OnDisable()
    {
        if (added) { All.Remove(registered); added = false; }
    }

    public static bool Contains(Vector3 p, float radius)
    {
        foreach (var b in All)
        {
            var e = b; e.Expand(radius * 2f);
            if (e.Contains(p)) return true;
        }
        return false;
    }
}