196 lines
3.8 KiB
C#
196 lines
3.8 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Playables;
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using UnityEngine.Animations;
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namespace MotionFramework.Experimental.Animation
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{
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public sealed class AnimMixer : AnimNode
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{
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private const float HIDE_DURATION = 0.25f;
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private readonly List<AnimState> _states = new List<AnimState>(10);
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private AnimationMixerPlayable _mixer;
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private bool _isQuiting = false;
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/// <summary>
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/// 动画层级
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/// </summary>
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public int Layer { private set; get; }
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public AnimMixer(PlayableGraph graph, int layer) : base(graph)
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{
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Layer = layer;
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_mixer = AnimationMixerPlayable.Create(graph);
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SetSourcePlayable(_mixer);
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}
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public override void Update(float deltaTime)
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{
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base.Update(deltaTime);
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for (int i = 0; i < _states.Count; i++)
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{
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var state = _states[i];
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if (state != null)
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state.Update(deltaTime);
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}
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bool isAllDone = true;
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for (int i = 0; i < _states.Count; i++)
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{
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var state = _states[i];
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if (state != null)
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{
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if (state.IsDone == false)
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isAllDone = false;
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}
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}
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// 当子节点都已经完成的时候断开连接
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if (isAllDone && _isQuiting == false)
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{
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_isQuiting = true;
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StartWeightFade(0, HIDE_DURATION);
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}
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if (_isQuiting)
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{
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if (Mathf.Approximately(Weight, 0f))
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DisconnectMixer();
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}
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}
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/// <summary>
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/// 播放指定动画
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/// </summary>
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public void Play(AnimState animState, float fadeDuration)
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{
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// 重新激活混合器
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_isQuiting = false;
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StartWeightFade(1f, 0);
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if (IsContains(animState) == false)
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{
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// 优先插入到一个空位
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int index = _states.FindIndex(s => s == null);
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if (index == -1)
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{
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// Increase input count
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int inputCount = _mixer.GetInputCount();
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_mixer.SetInputCount(inputCount + 1);
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animState.Connect(_mixer, inputCount);
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_states.Add(animState);
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}
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else
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{
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animState.Connect(_mixer, index);
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_states[index] = animState;
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}
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}
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for (int i = 0; i < _states.Count; i++)
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{
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var state = _states[i];
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if (state == null)
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continue;
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if (state == animState)
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{
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state.StartWeightFade(1f, fadeDuration);
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state.PlayNode();
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}
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else
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{
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state.StartWeightFade(0f, fadeDuration);
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state.PauseNode();
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}
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}
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}
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/// <summary>
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/// 停止指定动画，恢复为初始状态
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/// </summary>
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public void Stop(string name)
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{
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AnimState state = FindState(name);
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if (state == null)
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return;
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state.PauseNode();
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state.ResetNode();
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}
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/// <summary>
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/// 暂停所有动画
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/// </summary>
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public void PauseAll()
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{
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for (int i = 0; i < _states.Count; i++)
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{
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var state = _states[i];
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if (state == null)
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continue;
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state.PauseNode();
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}
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}
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/// <summary>
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/// 是否包含该动画
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/// </summary>
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public bool IsContains(AnimNode node)
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{
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foreach (var state in _states)
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{
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if (state == node)
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return true;
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}
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return false;
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}
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/// <summary>
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/// 移除一个动画
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/// </summary>
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public void RemoveState(string name)
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{
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var state = FindState(name);
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if (state == null)
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return;
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_states[state.InputPort] = null;
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state.Destroy();
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}
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/// <summary>
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/// 获取指定的动画
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/// </summary>
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/// <returns>如果没有返回NULL</returns>
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private AnimState FindState(string name)
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{
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foreach (var state in _states)
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{
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if (state != null && state.Name == name)
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return state;
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}
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MotionLog.Warning($"Animation state doesn't exist : {name}");
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return null;
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}
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private void DisconnectMixer()
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{
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for (int i = 0; i < _states.Count; i++)
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{
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var state = _states[i];
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if (state == null)
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continue;
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state.Disconnect();
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_states[i] = null;
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}
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Disconnect();
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}
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}
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} |