using System.Collections.Generic;
using DG.Tweening;

namespace DefaultNamespace.Anima
{
  public static class TweenExtensions
    {
        /// <summary>
        /// 添加一个Tween到Sequence中，并返回自身以支持链式调用
        /// </summary>
        /// <param name="sequence">要添加到的Sequence</param>
        /// <param name="tween">要添加的Tween</param>
        /// <returns>返回自身以支持链式调用</returns>
        public static Sequence AppendTween(this Sequence sequence, Tween tween)
        {
            return sequence.Append(tween);
        }

        /// <summary>
        /// 加入一个Tween到Sequence中，并返回自身以支持链式调用
        /// </summary>
        /// <param name="sequence">要添加到的Sequence</param>
        /// <param name="tween">要添加的Tween</param>
        /// <returns>返回自身以支持链式调用</returns>
        public static Sequence JoinTween(this Sequence sequence, Tween tween)
        {
            return sequence.Join(tween);
        }

        /// <summary>
        /// 将多个Tween依次加入Sequence中，并返回自身以支持链式调用
        /// </summary>
        /// <param name="sequence">要添加到的Sequence</param>
        /// <param name="tweens">要添加的Tween数组</param>
        /// <returns>返回自身以支持链式调用</returns>
        public static Sequence AppendTweens(this Sequence sequence, params Tween[] tweens)
        {
            foreach (var tween in tweens)
            {
                sequence.Append(tween);
            }
            return sequence;
        }

        /// <summary>
        /// 将多个Tween依次加入Sequence中，并返回自身以支持链式调用
        /// </summary>
        /// <param name="sequence">要添加到的Sequence</param>
        /// <param name="tweens">要添加的Tween列表</param>
        /// <returns>返回自身以支持链式调用</returns>
        public static Sequence AppendTweens(this Sequence sequence, List<Tween> tweens)
        {
            foreach (var tween in tweens)
            {
                sequence.Append(tween);
            }
            return sequence;
        }

        /// <summary>
        /// 重置Sequence并返回自身以支持链式调用
        /// </summary>
        /// <param name="sequence">要重置的Sequence</param>
        /// <returns>返回自身以支持链式调用</returns>
        public static Sequence ResetSequence(this Sequence sequence)
        {
            sequence.Rewind();
            return sequence;
        }
    }
}