// Copyright 2020-2022 Andreas Atteneder
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

using GLTFast.Schema;
using UnityEngine;

namespace GLTFast
{

    static class RootExtension
    {

        /// <summary>
        /// Figures if any skins' skeleton property is not set.
        /// </summary>
        /// <param name="root">glTF Root object</param>
        /// <returns>True if the skeleton property on any skin is not set, false otherwise.</returns>
        internal static bool IsASkeletonMissing(this Root root)
        {
            if (root.skins != null)
            {
                foreach (var skin in root.skins)
                {
                    if (skin.skeleton < 0) return true;
                }
            }
            return false;
        }
    }
}
