控制人物動畫播放
這里我重新弄了一個簡單的場景和新的Animator Controller來作為示例。
下面先看看Animator Controller的配置：
人物在站立狀態只能進入走路，走路只能進入奔跑或返回站立，奔跑只能進入跳躍或返回走路，跳躍則只能返回奔跑。
參數方面為兩個參數：
- Float類型的moveSpeed；
- Trigger類型的Jump；
連線直接的轉換條件為：moveSpeed大於0.1進入走路，走路moveSpeed大於0.9進入奔跑小於0.1返回站立，奔跑moveSpeed小於0.9返回走路，Jump被觸發則進入跳躍；
為人物添加Animator組件並綁定上面的Animator Controller文件，同時綁定下面的腳本：
1 using UnityEngine;
2 using System.Collections;
3
4 public class TestAnim : MonoBehaviour
5 {
6 //將名稱轉換為哈希值可以提高索引的速度
7 private int moveSpeed = Animator.StringToHash("moveSpeed");
8 private int jump = Animator.StringToHash("Jump");
9 private int runState = Animator.StringToHash("Base Layer.Run");
10
11 private Animator _animator;
12
13 void Start()
14 {
15 _animator = this.GetComponent<Animator>();
16 }
17
18 void Update()
19 {
20 float speed = Input.GetAxis("Vertical");
21 _animator.SetFloat(moveSpeed, speed);
22
23 //獲取動畫的當前狀態
24 AnimatorStateInfo info = _animator.GetCurrentAnimatorStateInfo(0);
25 //跳躍除了要按下空格鍵外, 還需要處於奔跑狀態才行, 否則按下空格鍵時就會標記 Jump, 一進入奔跑就馬上跳躍
26 if(Input.GetKeyDown(KeyCode.Space) && info.fullPathHash == runState)
27 {
28 _animator.SetTrigger(jump);
29 }
30 }
31 }
State Machine Behavior
在Unity5.0中，我們可以給Animator Controller中的每個State添加腳本了，類似於專門用於GameObject的MonoBehavior，State可以添加State Machine Behavior，我們打開任意的Animator Controller，就可以在Inspector窗口發現添加腳本的按鈕：
除了State外，我們還可以在層上添加，層可以看做包含了整個State的一個大State：
我們可以添加一個腳本看看，下面是我添加了注釋的State Machine Behavior腳本的標准形式：
1 using UnityEngine;
2 using System.Collections;
3
4 public class StateScript : StateMachineBehaviour
5 {
6 // OnStateEnter is called before OnStateEnter is called on any state inside this state machine
7 override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
8 {
9 //進入當前狀態時會被調用
10 }
11
12 // OnStateUpdate is called before OnStateUpdate is called on any state inside this state machine
13 override public void OnStateUpdate(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
14 {
15 //進入當前狀態的每幀會被調用
16 }
17
18 // OnStateExit is called before OnStateExit is called on any state inside this state machine
19 override public void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
20 {
21 //退出當前狀態時會被調用
22 }
23
24 // OnStateMove is called before OnStateMove is called on any state inside this state machine
25 override public void OnStateMove(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
26 {
27 }
28
29 // OnStateIK is called before OnStateIK is called on any state inside this state machine
30 override public void OnStateIK(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
31 {
32 }
33
34 // OnStateMachineEnter is called when entering a statemachine via its Entry Node
35 override public void OnStateMachineEnter(Animator animator, int stateMachinePathHash)
36 {
37 }
38
39 // OnStateMachineExit is called when exiting a statemachine via its Exit Node
40 override public void OnStateMachineExit(Animator animator, int stateMachinePathHash)
41 {
42 }
43 }
通過使用State Machine Behaviour我們可以更加方便的在特定的時間點觸發一些我們需要的事件，但是需要注意的是，我們一般給State Machine Behaviour賦值一些場景的對象不是直接在Inspector面板里拖拽而是通過Animator的GetBehavior方法獲取到指定的State Machine Behaviour的實例后通過腳本進行賦值的。