为什么我的角色每次不动时只向目标旋转一次？

Question

我的问题可能听起来令人困惑，但我想编写代码，以便当我的角色不动时，他会直接看向最近的敌人。 问题是当我停止移动我的角色时，它只执行一次命令并且不会重定向到敌人的新位置。 我测试了很多东西，比如让它在我移动时，它看着敌人，它似乎工作，但每当我将它设置为不动时，它就不起作用。

using System.Collections.Generic;
using UnityEngine;
namespace work.working.worked
{
    public class Movement : MonoBehaviour
    {
        public float moveSpeed;
        public float rotationSpeed;
        public static bool ismoving;
        public Rigidbody2D rb;
        Vector2 movement;
        // Update is called once per frame
        void FixedUpdate()
        {
            rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);
        }
        void Update()
        {
            movement.x = Input.GetAxisRaw("Horizontal");
            movement.y = Input.GetAxisRaw("Vertical");
            if (Input.anyKey)
            {
                ismoving = true;
            }
            else
            {
                ismoving = false;
            }
            if (ismoving == true)
            {
                Vector2 direction = new Vector2(movement.x, movement.y);
                direction.Normalize();
                if (direction != Vector2.zero)
                {
                    Quaternion toRotation = Quaternion.LookRotation(Vector3.forward, direction);
                    transform.rotation = Quaternion.RotateTowards(transform.rotation, toRotation, rotationSpeed * Time.deltaTime);
                }
            }
            if (ismoving == false)
            {
                Vector3 direction = FindClosest.closestEnemy.position - transform.position;
                direction.Normalize();
                float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg - 85f;
                rb.rotation = angle;
            }
        }
    }
}

Answer 1

除了 Input.anyKey，您还可以检查移动向量的大小以查看角色是否在移动。

ismoving = movement.magnitude > 0.0f;

using System.Collections.Generic;
using UnityEngine;
namespace work.working.worked
{
    public class Movement : MonoBehaviour
    {
        public float moveSpeed;
        public float rotationSpeed;
        public bool ismoving;
        public Rigidbody2D rb;
        Vector2 movement;
        

        void FixedUpdate()
        {
            rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);
        }

        void Update()
        {
            movement.x = Input.GetAxisRaw("Horizontal");
            movement.y = Input.GetAxisRaw("Vertical");
            ismoving = movement.magnitude > 0.0f;

            if (ismoving)
            {
                Vector2 direction = new Vector2(movement.x, movement.y);
                direction.Normalize();
                if (direction != Vector2.zero)
                {
                    Quaternion toRotation = Quaternion.LookRotation(Vector3.forward, direction);
                    transform.rotation = Quaternion.RotateTowards(transform.rotation, toRotation, rotationSpeed * Time.deltaTime);
                }
            }
            else
            {
                Vector3 direction = FindClosest.closestEnemy.position - transform.position;
                direction.Normalize();
                float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg - 85f;
                rb.rotation = angle;
            }
        }
    }

也不ismoving变量设为静态，否则它会被加载场景中的每个活动移动组件设置，这可能会导致意外行为。 如果它是公开的，您可以通过选择带有移动组件的游戏对象在 Unity 检查器中查看它的状态。