英文:
error CS1503: Argument 2: cannot convert from 'UnityEngine.Vector2' to 'float'
问题
以下是代码的翻译部分：
我正在按照侧滚游戏移动脚本的教程进行操作，但遇到了这个错误：“error CS1503: 参数 2：无法将 'UnityEngine.Vector2' 转换为 'float'”这是代码，我认为问题可能出在 FixedUpdate，但我不太确定：
请注意，我已经将代码中的HTML实体编码（如"、&、<）还原为正常的代码文本。
英文:
i'm following a tutorial for the movement script for my sidescroller game but i encountered this error "error CS1503: Argument 2: cannot convert from 'UnityEngine.Vector2' to 'float'"
this is the code, i suppose the issue is in FixedUpdate but i'm not sure
using System.Collections;using System.Collections.Generic;using UnityEngine;public class Player_Movement : MonoBehaviour{private float horizontal;private float speed = 8f;private bool isFacingRight = true;[SerializeField] private Rigidbody2D rb;[SerializeField] private Transform groundCheck;[SerializeField] private LayerMask groundLayer;// Update is called once per framevoid Update(){horizontal = Input.GetAxisRaw("Horizontal");Flip();}private void FixedUpdate(){rb.velocity = new Vector2(horizontal * speed, rb.velocity);}private void Flip(){if (isFacingRight && horizontal < 0f || !isFacingRight && horizontal > 0f){isFacingRight = !isFacingRight;Vector3 localScale = transform.localScale;localScale.x *= -1f;transform.localScale = localScale;}}}
答案1
得分: 0
在FixedUpdate中，您试图将Vector2的y分量设置为一个Vector2，而应该是一个float。
private void FixedUpdate(){rb.velocity = new Vector2(horizontal * speed, rb.velocity);}
很可能您的意思是这个：
private void FixedUpdate(){rb.velocity = new Vector2(horizontal * speed, rb.velocity.y);}
在这里，您设置了速度的y部分为旧速度的y部分，保持不变。rb.velocity.y是一个float，而新的Vector2需要两个float。
希望这有所帮助！
英文:
In FixedUpdate you are trying to set the a vector2 y component to a Vector2, while it should be a float.
private void FixedUpdate(){rb.velocity = new Vector2(horizontal * speed, rb.velocity);}
Most likely you were meaning this:
private void FixedUpdate(){rb.velocity = new Vector2(horizontal * speed, rb.velocity.y);}
Here you set the y part of the velocity two the y part of the old velocity, leaving it the same. Here rb.velocity.y is a float and a new Vector2 takes two floats.
Hope this helps!
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