unity3d HashID转换参数的使用方法

Hash是一种由系统根据字符串生成的整形数据,可以方便通过操作hash数字来操作相应的动画状态机的参数、状态机、动画层。

功能说明:通过新建的HashIDs脚本,实现对动画状态控制器Animator中的状态机、过度参数、动画层等映射。

using UnityEngine;

usingSystem.Collections;

 

publicclassHashIDs : MonoBehaviour

{

    publicint dyingState; // 表示Base LayerDying状态的hash id

    publicint locomotionState;

    publicint shoutState;

    publicint deadBool;

    publicint speedFloat;

    publicint sneakingBool;

    publicint shoutingBool;

    publicint playerInSightBool;

    publicint shotFloat;

    publicint aimWeightFloat;

    publicint angularSpeedFloat;

    publicint openBool;

 

    void Awake ()

    {

        dyingState = Animator.StringToHash("BaseLayer.Dying");

        locomotionState = Animator.StringToHash("BaseLayer.Locomotion");

        shoutState = Animator.StringToHash("Shouting.Shout");

        deadBool = Animator.StringToHash("Dead");

        speedFloat = Animator.StringToHash("Speed");

        sneakingBool = Animator.StringToHash("Sneaking");

        shoutingBool = Animator.StringToHash("Shouting");

        playerInSightBool = Animator.StringToHash("PlayerInSight");

        shotFloat = Animator.StringToHash("Shot");

        aimWeightFloat = Animator.StringToHash("AimWeight");

        angularSpeedFloat = Animator.StringToHash("AngularSpeed");

        openBool = Animator.StringToHash("Open");

    }

}

 

建立好了参数映射之后,接下来就是在游戏主角player进行控制和设置了,实现通过操作HashIDs中的成员变量间接操作动画控制状态机中的参数值。这里需要给跑步的动画添加声音。若是游戏对象比较多,为方便访问建立标签类tags.cs.

using UnityEngine;

usingSystem.Collections;

 

publicstaticclassTags

{

         publicstaticstring Player = "Player";

         publicstaticstring MainLight = "MainLight";

         publicstaticstring AlarmLight = "AlarmLight";

         publicstaticstring GameController = "GameController";

         publicstaticstring Fader = "Fader";

         publicstaticstring Enemy = "Enemy";

         publicstaticstring Siren = "Siren";

}

 

 

using UnityEngine;

usingSystem.Collections;

 

publicclassPlayerMovement : MonoBehaviour

{

         publicAudioClip shoutingClip;

         publicfloat turnSmoothing =15f;

         publicfloat speedDampTime =0.1f;

        

         privateAnimator animator;

         privateHashIDs hash;  //应用之前建立的动画参数映射类

 

         voidAwake()

         {

                   animator = GetComponent<Animator>();

                   hash = GameObject.FindWithTag(Tags.GameController).GetComponent<HashIDs>();

                   animator.SetLayerWeight(1, 1f);  // 设置动画层第一层权重为1,否不会运行

         }

 

         voidRotating(float h, float v)

         {

                   Vector3 targetDir = newVector3(h, 0, v);

                   Quaternion targetRotation = Quaternion.LookRotation(targetDir,Vector3.up);

                   Rigidbody r = GetComponent<Rigidbody>();

                   Quaternion newRotation = Quaternion.Lerp(r.rotation,targetRotation,

                                                           turnSmoothing * Time.deltaTime);

                   r.MoveRotation(newRotation);

         }

 

         voidMovementManagement(floath, float v, bool sneaking)

         {

                   animator.SetBool(hash.sneakingBool, sneaking);

                   if(h != 0 || v != 0)

                   {

                            Rotating(h, v);

                            animator.SetFloat(hash.speedFloat, 5.5f,speedDampTime, Time.deltaTime);

                   }

                   else

                   {

                            animator.SetFloat(hash.speedFloat, 0f);

                   }

         }

 

         voidFixedUpdate()

         {

                   float h = Input.GetAxis("Horizontal");

                   float v = Input.GetAxis("Vertical");

                   bool sneak = Input.GetButton("Sneak");

                   MovementManagement(h, v, sneak);

         }

 

         voidAudioManagement(boolshout)

         {

                   AudioSource audioSource = GetComponent<AudioSource>();

                   if(animator.GetCurrentAnimatorStateInfo(0).fullPathHash ==hash.locomotionState)

                   {

                            if(! audioSource.isPlaying)

                                     audioSource.Play();

                   }

                   else

                            audioSource.Stop();

                  

                   if(shout)

                            AudioSource.PlayClipAtPoint(shoutingClip,transform.position);

         }

 

         voidUpdate ()

         {

                   bool shout = Input.GetButtonDown("Attract");

                   animator.SetBool(hash.shoutingBool, shout);

                   AudioManagement(shout);

         }

 

}

 

注释:

1.   Quaternion.LookRotation

LookRotation 的两个参数,第一个参数 forward,是一个三元组,也就是三个浮点数的组合,这个三元组可以确定世界坐标系下的一个点,从世界坐标系的坐标原点到这个定点就构成了一个三维空间矢量,当我们忽略这个矢量的长度时,它就退化为一个纯粹的方向指示,换句话说,这第一个参数 forward 确定了一个世界坐标系下的方向,而这个方向就是物体转动后 +z 轴所要指向的方向;第二个参数 upwards,也是个三元组,这个三元组同样可以确定一个世界坐标系下的方向,物体转动后 x 轴必须与这个方向垂直(如果转动前物体的x轴不满足此条件,那么物体除了改变朝向外还会绕 z 轴旋转以确保转动结束后 x 轴与此方向垂直)。

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