[Unity动画]02.动画播放

参考链接：

http://www.cnblogs.com/hont/p/5100472.html

上一篇是直接通过界面来控制动作的播放，这篇将使用脚本去管理对象的动作

API解析：

Animator.IsInTransition：是否处于过渡状态

状态机如下：

脚本如下：

TestAnimator.cs

using UnityEngine;

public class TestAnimator : MonoBehaviour {

    //------------------------------------------外部
    public float Move = 0;
    public bool IsDying = false;

    //------------------------------------------内部
    private Animator animator;

    //常数
    private int baseLayerIndex;
    private int idleStateHash;
    private int runStateHash;
    private int dyingStateHash;
    private string movePara;
    private string isDyingPara;

    void Start ()
    {
        animator = GetComponent<Animator>();

        baseLayerIndex = animator.GetLayerIndex("Base Layer");
        idleStateHash = Animator.StringToHash("Base Layer.Idle");
        runStateHash = Animator.StringToHash("Base Layer.Run");
        dyingStateHash = Animator.StringToHash("Base Layer.Dying");
        movePara = "move";
        isDyingPara = "isDying";
    }
    
    void Update ()
    {
        //------------------------------------------播放动作
        animator.SetFloat(movePara, Move);
        if (IsDying)
        {
            animator.SetBool(isDyingPara, true);
            IsDying = false;
        }

        //------------------------------------------动作恢复
        AnimatorStateInfo stateInfo;
        int fullPathHash;

        //BaseLayer
        stateInfo = animator.GetCurrentAnimatorStateInfo(baseLayerIndex);
        if (!animator.IsInTransition(baseLayerIndex) && stateInfo.normalizedTime >= 1)
        {
            fullPathHash = stateInfo.fullPathHash;
            if (fullPathHash == dyingStateHash)
            {
                animator.SetBool(isDyingPara, false);
            }
        }
    }

    public void SetDying(bool state)
    {
        if (animator)
        {
            animator.SetBool(isDyingPara, state);
        }
    }
}

NewBehaviourScript.cs

using UnityEngine;

public class NewBehaviourScript : MonoBehaviour {

    public TestAnimator testAnimator;
        
    void Update ()
    {
        if (Input.GetKey(KeyCode.Q))
        {
            testAnimator.Move = 1;
        }
        if (Input.GetKeyUp(KeyCode.Q))
        {
            testAnimator.Move = 0;
        }
        if (Input.GetKeyDown(KeyCode.W))
        {
            testAnimator.IsDying = true;
        }
        if (Input.GetKeyDown(KeyCode.E))
        {
            testAnimator.SetDying(false);
        }
    }
}

按住Q，播放跑步动画；松开Q，播放站立动画；按下W，播放倒地动画；按下E，播放倒地恢复成站立的动画