83 lines
2.9 KiB
C#
83 lines
2.9 KiB
C#
#if UNITY_EDITOR
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using UnityEditor;
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using UnityEngine;
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/// <summary>
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/// 把 CaoCao Prefab 摆到当前场景广场中心，Y 取地表碰撞高度。不保存进 TownSquare.prefab。
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/// </summary>
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public static class PlaceCaoCao
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{
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const string PrefabPath = "Assets/Bundles/Characters/Human/CaoCao/CaoCao.prefab";
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public static string Run()
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{
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var prefab = AssetDatabase.LoadAssetAtPath<GameObject>(PrefabPath);
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if (prefab == null)
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return "missing " + PrefabPath;
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var existing = GameObject.Find("CaoCao_Preview");
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if (existing != null)
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Object.DestroyImmediate(existing);
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var go = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
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go.name = "CaoCao_Preview";
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Physics.SyncTransforms();
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var y = SampleGroundY(0f, 0f, out var sitInfo);
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go.transform.position = new Vector3(0f, y, 0f);
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go.transform.rotation = Quaternion.identity;
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var bounds = default(Bounds);
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var has = false;
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foreach (var r in go.GetComponentsInChildren<Renderer>())
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{
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if (!has) { bounds = r.bounds; has = true; }
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else bounds.Encapsulate(r.bounds);
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}
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return $"pos={go.transform.position} h={(has ? bounds.size.y : 0f):F3} groundY={y:F3} {sitInfo}";
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}
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static float SampleGroundY(float x, float z, out string info)
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{
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var plaza = GameObject.Find("TownSquare");
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var cols = plaza != null
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? plaza.GetComponentsInChildren<MeshCollider>()
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: Object.FindObjectsByType<MeshCollider>(FindObjectsSortMode.None);
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var y = 0f;
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var hitAny = false;
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var best = float.MaxValue;
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var meshName = "";
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var boundsTop = 0f;
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foreach (var col in cols)
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{
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if (col == null || !col.enabled) continue;
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meshName = col.sharedMesh != null ? col.sharedMesh.name : "null";
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boundsTop = col.bounds.max.y;
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var origins = new[]
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{
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new Vector3(x, 80f, z),
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new Vector3(col.bounds.center.x, col.bounds.max.y + 8f, col.bounds.center.z),
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new Vector3(x + 0.35f, 80f, z + 0.35f),
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};
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foreach (var origin in origins)
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{
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var ray = new Ray(origin, Vector3.down);
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if (!col.Raycast(ray, out var hit, 160f)) continue;
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if (hit.distance >= best) continue;
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best = hit.distance;
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y = hit.point.y;
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hitAny = true;
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}
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}
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if (!hitAny && boundsTop > 0.01f)
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{
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y = boundsTop;
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info = $"fallbackBoundsTop={y:F3} mesh={meshName} cols={cols.Length}";
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return y;
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}
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info = $"plaza={(plaza != null ? plaza.name : "null")} cols={cols.Length} mesh={meshName} meshHit={hitAny}";
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return hitAny ? y : 0f;
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}
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}
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#endif
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