为什么整数不能从统一转换？

Question

我刚刚遇到错误 CS1504: argument 4: cannot convert from 'int' to 'UnityEngine.ForceMode' in Unity。

这是我写的代码

using UnityEngine;

public class PlayerMovement : MonoBehaviour
{

    // This is a reference to the Rigidbody component called "rb"
    public Rigidbody rb;

    public float forwardForce = 2000f;  // Variable that determines the forward force
    public float sidewaysForce = 500f;  // Variable that determines the sideways force

    // We marked this as "Fixed"Update because we
    // are using it to mess with physics.
    void FixedUpdate()
    {
        // Add a forward force
        rb.AddForce(0, 0, forwardForce * Time.deltaTime);

        if (!Input.GetKey("d"))  // If the player is pressing the "d" key
        {
        }
        else
        {
            // Add a force to the right
            global::System.Object value = rb.AddForce(sidewaysForce * Time.deltaTime, 0, 0, 50);
        }

        if (Input.GetKey("a"))  // If the player is pressing the "a" key
        {
            // Add a force to the left
            global::System.Object value = rb.AddForce(-sidewaysForce * Time.deltaTime, 0, 0, 50);
        }
    }
}

有人可以帮助我并指出我做错了什么吗？

Answer 1

来自rb.AddForce(sidewaysForce * Time.deltaTime, 0, 0, 50); ，最后一个值应该类似于ForceMode.Impulse 。

例如。 rb.AddForce(sidewaysForce * Time.deltaTime, 0, 0, ForceMode.Impulse);

参考： https ://docs.unity3d.com/ScriptReference/Rigidbody.AddForce.html

和rb.AddForce(0, 0, forwardForce * Time.deltaTime); 工作是因为它已经有了 ForceMode 的默认值，即 ForceMode.Force。

public void AddForce(float x, float y, float z, ForceMode mode = ForceMode.Force);