移动游戏对象在一个平滑的圆圈围绕玩家对象

本文关键字：对象 玩家 平滑 游戏 移动 一个 | 更新日期: 2023-09-27 18:10:44

如果有区别，我使用unity 5.1.2。

我有一个游戏对象盾牌，我想在玩家周围绕圈移动。我让它在一定程度上工作，盾牌对输入的反应很好，但不是动画，因为它只是传送到新的位置，而不是在一个平滑的旋转中绕圈移动。游戏是2D自上而下的，所以只能在x/y平面上工作。我试过使用lerp和slerp，但没有任何乐趣

将非常感谢您的帮助，以解决这个问题!

到目前为止我写的是:

public class ShieldMovement : MonoBehaviour {
    public Transform target; //player shield is attaced to
    float distance = 0.8f; // distance from player so it doesn't clip
    Vector3 direction = Vector3.up;

    // Use this for initialization
    void Start () {
    }
    // Update is called once per frame
    void Update () {
        float angle = Mathf.Atan2 (Input.GetAxisRaw("rightH"), Input.GetAxisRaw("rightV"))* Mathf.Rad2Deg;
        if(Input.GetAxis("rightH") != 0f || Input.GetAxis("rightV") != 0f)
        {
            direction =  new Vector3(Input.GetAxis("rightH"),Input.GetAxis("rightV"), 0.0f ) ;
        }
        Ray ray = new Ray(target.position, direction);
        transform.position = ray.GetPoint(distance);
        if(Input.GetAxis("rightH") != 0f || Input.GetAxis("rightV") != 0f)
        {
            transform.rotation = Quaternion.AngleAxis(angle,Vector3.forward*-1);
        }
    }
}

移动游戏对象在一个平滑的圆圈围绕玩家对象

试试这个。有这么多对Input.GetAxis("...")的方法调用，你真的想在开始的时候只调用它一次，然后把它缓存到一个变量来加快速度。你也不需要检查if(Input.GetAxis("rightH") != 0f || Input.GetAxis("rightV") != 0f)两次，所以我把所有的东西都放在一张支票里。我加了一个Time.smoothDeltaTime的乘法，希望能让你更顺利

float h = Input.GetAxis("rightH");
float v = Input.GetAxis("rightV");
float angle = Mathf.Atan2(h, v) * Mathf.Rad2Deg;
if(h != 0f || v != 0f)
{
    float step = Time.smoothDeltatime * speed;
    direction = Vector3.RotateTowards(transform.forward, new Vector2(h, v).normalized, step, 0.0F);
    Ray2D ray = new Ray2D(target.position, direction);
    transform.position = ray.GetPoint(distance);
    transform.rotation = Quaternion.AngleAxis(angle, -Vector3.forward);
}

经过多次搜索和一些帮助，我终于解决了问题，谢谢大家:)这是我想出的解决方案

public class ShieldMovement : MonoBehaviour {
public Transform target; //player shield is attaced to
float distance = 0.8f; // distance from player so it doesn't clip
Vector3 direction = Vector3.up;
public float circSpeed = 0.1f; // Speed Shield moves around ship

// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
    float rh = Input.GetAxisRaw("rightH");
    float rv = Input.GetAxisRaw("rightV");
    if(Mathf.Abs(rh) > 0.15f || Mathf.Abs(rv) > 0.15f)
    {
        Vector3 targetDir = new Vector3(rh, rv, 0.0f);
        direction  = Vector3.Slerp(transform.position-target.position, targetDir, circSpeed);
    }
    Ray ray = new Ray(target.position, direction); // cast ray in direction of point on circle shield is to go
    transform.position = ray.GetPoint(distance); //move shield to the ray as far as the radius
    float angleY = transform.position.y - target.position.y;
    float angleX = -(transform.position.x - target.position.x);
    float angle = Mathf.Atan2 (angleY, angleX) * Mathf.Rad2Deg-90; //Get angle
    if(Mathf.Abs(rh) > 0.15f || Mathf.Abs(rv) > 0.15f)
    {
        transform.rotation = Quaternion.AngleAxis(angle,Vector3.forward*-1); // keep shield facing outwards in respect to player, will need revisiting on animating shield properly
    }

}

}

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