unity之 PlayableGraph 动画应用（二）

续上篇 unity之性能优化 PlayableGraph 动画应用（一）继续：

多个动画如何播放，动画融合、权重等

上代码：

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Animations;
using UnityEngine.Playables;

public class TestPlayable : MonoBehaviour
{
    private Animator m_Animator;

    [SerializeField]
    private AnimationClip m_AnimationClip;
    private PlayableGraph m_PlayableGraph;
    private AnimationPlayableOutput m_AnimationPlayableOutput;

    void Awake()
    {
        m_Animator = GetComponent<Animator>();
        //创建画布
        m_PlayableGraph = PlayableGraph.Create("testGraph");
        //为画布创建一个输出节点
        m_AnimationPlayableOutput = AnimationPlayableOutput.Create(m_PlayableGraph, "OutPut", m_Animator);
        Test2();
    }

    [SerializeField]
    private AnimationClip[] m_Clips;
    //动画剪辑Playable列表
    private List<AnimationClipPlayable> m_AnimationClipPlayable = new List<AnimationClipPlayable>(100);
    //动画混合
    private AnimationMixerPlayable m_AnimationMixerPlayable;

    /// <summary>
    /// 目的是为了 画出图形
    /// </summary>
    private void Test2()
    {
        int clipCount = m_Clips.Length;
        //创建动画混合
        m_AnimationMixerPlayable = AnimationMixerPlayable.Create(m_PlayableGraph, clipCount);
        //设置output的源头 动画混合
        m_AnimationPlayableOutput.SetSourcePlayable(m_AnimationMixerPlayable, 0);

        for (int i = 0; i < clipCount; i++)
        {
            //创建动画剪辑
            AnimationClipPlayable animationClipPlayable = AnimationClipPlayable.Create(m_PlayableGraph, m_Clips[i]);
            //画布连接动画混合、动画剪辑从index = 0到index = count-1 全部跟动画融合相连
            m_PlayableGraph.Connect(animationClipPlayable, 0, m_AnimationMixerPlayable, i);
            m_AnimationClipPlayable.Add(animationClipPlayable);
        }
    }
}

以上代码 运行起来：绘制的画布如下：

 

 好 播放的代码：

private int index = 0;
    private void Play()
    {
        m_PlayableGraph.Play();
        //通过索引获取playable
        Playable playable = m_AnimationMixerPlayable.GetInput(index);
        playable.SetTime(0);
        playable.Play();
        int count = m_AnimationClipPlayable.Count;
        for (int i = 0; i < count; i++)
        {
            if (i == index)
            {
                //需要播放的权重设置为1
                m_AnimationMixerPlayable.SetInputWeight(i, 1);
            }
            else
            {
                //不播放的权重设置为0
                m_AnimationMixerPlayable.SetInputWeight(i, 0);
            }
        }
        index++;
        if (index == count)
        {
            index = 0;
        }
    }

    void Update()
    {
        if (Input.GetKeyUp(KeyCode.P))
        {
            Play();
        }
    }

好了，以上就是 PlayableGraph 动画应用（二）混合动画的播放。