Unity Animator自动连线

先上图

 上图为一个简单的怪物状态机，是通过代码自动生成连线的，但是里面的动画需要自己设置

那么如何做到

官方参考：https://docs.unity3d.com/ScriptReference/Animations.AnimatorController.html

民间参考：https://www.jianshu.com/p/cf1b54b78c23

我的代码：

using System;

using System.Collections;

using System.Collections.Generic;

using Framework;

using UnityEditor;

using UnityEditor.Animations;

using UnityEngine;

///

public class EditorAnimator

{

[MenuItem("Assets/创建怪物动画状态机", priority = 0)]

static void CreateUIView()

{

AnimatorController ac = (AnimatorController)Selection.objects[0];

AnimatorStateMachine stateMachine = ac.layers [0].stateMachine;

//添加动画容器

AddNewState(stateMachine, "Die", new Vector3(300, 20, 0));

AddNewState(stateMachine, "Idle", new Vector3(300, 120, 0));

AddNewState(stateMachine, "Run", new Vector3(300, 220, 0));

AddNewState(stateMachine, "Attack", new Vector3(600, 220, 0));

#region 添加状态

AddBoolBehaviour(stateMachine, "Idle", "IsIdle",true, SetParameter.Parameter.SetWhen.OnEnter);

AddBoolBehaviour(stateMachine, "Idle", "IsIdle",false, SetParameter.Parameter.SetWhen.OnExit);

AddBoolBehaviour(stateMachine, "Die", "IsDie",true, SetParameter.Parameter.SetWhen.OnEnter);

AddBoolBehaviour(stateMachine, "Die", "IsDie",false, SetParameter.Parameter.SetWhen.OnExit);

AddBoolBehaviour(stateMachine, "Run", "IsRun",true, SetParameter.Parameter.SetWhen.OnEnter);

AddBoolBehaviour(stateMachine, "Run", "IsRun",false, SetParameter.Parameter.SetWhen.OnExit);

AddBoolBehaviour(stateMachine, "Attack", "IsAttack",true, SetParameter.Parameter.SetWhen.OnEnter);

AddBoolBehaviour(stateMachine, "Attack", "IsAttack",false, SetParameter.Parameter.SetWhen.OnExit);

#endregion

//连线，并且添加条件

var line = StateLine(stateMachine, "Idle", "Run");

line.AddCondition(AnimatorConditionMode.Greater, 0.01f, "speed");//数值大小式

var line2 = StateLine(stateMachine, "Run", "Idle");

line2.AddCondition(AnimatorConditionMode.Less, 0.01f, "speed");//数值大小式

var line3 = StateLine(stateMachine, "Run", "Attack");

line3.AddCondition(AnimatorConditionMode.If, 0, "attack");//Trigger触发式

var line4 = StateLine(stateMachine, "Idle", "Attack");

line4.AddCondition(AnimatorConditionMode.If, 0, "attack");//Trigger触发式

StateLine(stateMachine, "Attack", "Idle", true);

var line5 = StateLine(stateMachine, "Die", "Idle");

line5.AddCondition(AnimatorConditionMode.IfNot, 0, "die");//bool-false

//任意状态到死亡

var lineDie = stateMachine.AddAnyStateTransition(GetStateByName(stateMachine, "Die"));

lineDie.AddCondition(AnimatorConditionMode.If, 0, "die");//bool-true

lineDie.AddCondition(AnimatorConditionMode.IfNot, 0, "IsDie");//bool-false

}

static void AddNewState(AnimatorStateMachine stateMachine, string name, Vector3 v3)

{

bool has = false;

foreach (var one in stateMachine.states)

{

//Debug.Log(one.state.name);

if (one.state.name.Equals(name))

{

has = true;

}

}

if (!has)

{

stateMachine.AddState(name, v3);

}

}

static AnimatorState GetStateByName(AnimatorStateMachine stateMachine, string name)

{

foreach (var one in stateMachine.states)

{

if (one.state.name.Equals(name))

{

return one.state;

}

}

return null;

}

//连线

static AnimatorStateTransition StateLine(AnimatorStateMachine stateMachine, string name1, string name2,bool defaultExitTime = false)

{

return GetStateByName(stateMachine, name1).AddTransition(GetStateByName(stateMachine, name2), defaultExitTime);

}

//添加StateMachineBehaviour，并且设置

static void AddBoolBehaviour(AnimatorStateMachine stateMachine, string name,string paraName, bool v, SetParameter.Parameter.SetWhen when)

{

SetParameter.Parameter parameter = new SetParameter.Parameter();

parameter.Name = paraName;

parameter.Type = AnimatorControllerParameterType.Bool;

parameter.BoolValue = v;

parameter.When = when;

SetParameter para;

if (GetStateByName(stateMachine, name).behaviours.Length == 0)

{

para = GetStateByName(stateMachine, name).AddStateMachineBehaviour();

}

else

{

para = (SetParameter)GetStateByName(stateMachine, name).behaviours[0];

}

if (para.Parameters == null)

{

para.Parameters = new List();

}

para.Parameters.Add(parameter);

EditorUtility.SetDirty(para);

}

}

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