using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
public static class MeshToolForParticle
{
    [MenuItem("Tools/ParticleSystem/FindScenes", false, 20)]
    public static void FindScenes()
    {
        var guids = AssetDatabase.FindAssets("t:Scene");
        foreach (var guid in guids)
        {
            string path = AssetDatabase.GUIDToAssetPath(guid);
            var scene = EditorSceneManager.OpenScene(path, OpenSceneMode.Single);
            var roots = scene.GetRootGameObjects();
            bool found = false;
            foreach (var go in roots)
            {
                found |= Find(go);
            }
            if (found)
            {
                Debug.Log(path);
            }
        }
    }
    [MenuItem("Tools/ParticleSystem/FindPrefabs", false, 20)]
    public static void FindPrefabs()
    {
        var guids = AssetDatabase.FindAssets("t:Prefab");
        foreach (var guid in guids)
        {
            string path = AssetDatabase.GUIDToAssetPath(guid);
            var prefab = AssetDatabase.LoadAssetAtPath<GameObject>(path);
            Find(prefab);
        }
    }
    private static bool Find(GameObject go)
    {
        bool found = false;
        var particles = go.GetComponentsInChildren<ParticleSystem>(true);
        foreach (var particle in particles)
        {
            if (particle.shape.enabled && particle.shape.shapeType == ParticleSystemShapeType.Mesh &&
            particle.shape.meshShapeType != ParticleSystemMeshShapeType.Vertex)
            {
                string prefabPath = PrefabUtility.GetPrefabAssetPathOfNearestInstanceRoot(particle);
                Debug.LogWarning(string.Format("Path: {0}\nGo: {1}", prefabPath, particle.gameObject.name));
                found = true;
            }
        }
        return found;
    }
}