Children#

using System;
using System.Collections.Generic;
using UnityEngine;
using VisualScript.Icons;

namespace VisualScript.Runtime
{
    [Get]

    [Title("Children")]
    [Category("Transform/Children")]

    [Description("The collection of Game Objects that hang from the Transform of another one")]
    [Image(typeof(IconHanger), ColorTheme.Type.Lime, typeof(BadgeList))]

    [Parameter("Game Object", "The Game Object whose children are collected")]
    [Parameter("Recursive", "Whether the children of each child are also collected")]
    [Parameter("Include Inactive", "Whether Game Objects that are not active are also collected")]

    [Keywords("Transform", "Hierarchy", "Parent", "Descendants", "Sons", "Nested")]

    [Serializable]
    public class TypeCollectionGameObjectsTransformChildren : TypeCollectionGameObjects
    {
        // EXPOSED MEMBERS: -----------------------------------------------------------------------

        [SerializeField] private GetGameObject m_GameObject = new GetGameObject();
        [SerializeField] private GetBool m_Recursive = new GetBool(false);
        [SerializeField] private GetBool m_IncludeInactive = new GetBool(true);

        // PUBLIC METHODS: ------------------------------------------------------------------------

        public override void Get(Args args, List<GameObject> values)
        {
            values.Clear();

            Transform transform = this.m_GameObject.Get<Transform>(args);
            if (transform == null) return;

            Collect(transform, values, this.m_Recursive.Get(args), this.m_IncludeInactive.Get(args));
        }

        public override string ToString()
        {
            return $"{this.m_GameObject} Children";
        }

        // PRIVATE METHODS: -----------------------------------------------------------------------

        private static void Collect(Transform parent, List<GameObject> values, bool recursive, bool includeInactive)
        {
            int childCount = parent.childCount;
            for (int i = 0; i < childCount; ++i)
            {
                Transform child = parent.GetChild(i);
                if (!includeInactive && !child.gameObject.activeInHierarchy) continue;

                values.Add(child.gameObject);
                if (recursive) Collect(child, values, true, includeInactive);
            }
        }

        // PROTECTED METHODS: ---------------------------------------------------------------------

        protected override SubscriptionMode Subscription => SubscriptionMode.OnChange;
    }
}