2-3. 实现移动和翻转

代码实现

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.Scripting.APIUpdating;

public class PlayerController : MonoBehaviour
{
    public PlayerInputControl inputControl;
    private Rigidbody2D rb;
    public Vector2 inputDirection;
    public float speed;

    private void Awake()
    {
        inputControl = new PlayerInputControl();
        // 获取 Player 上面的刚体组件
        rb = GetComponent<Rigidbody2D>();
    }

    private void OnEnable()
    {
        inputControl.Enable();
    }

    private void OnDisable()
    {
        inputControl.Disable();
    }

    private void Update()
    {
        inputDirection = inputControl.Gameplay.Move.ReadValue<Vector2>();
    }

    private void FixedUpdate()
    {
        // 在 FixedUpdate 里面对刚体进行操作
        Move();
    }

    public void Move()
    {
        // 设置刚体的速度，这样刚体就能移动了
        rb.velocity = new Vector2(inputDirection.x * speed, rb.velocity.y);

        // 初始人物是面朝 x 轴正方向的
        int faceDir = 0;
        if (transform.localScale.x > 0)
        {
            faceDir = 1;
        }
        else if (transform.localScale.x < 0)
        {
            faceDir = -1;
        }
        // 输入是 x 轴正方向的时候面朝也是 x 轴正方向
        // 输入是 x 轴负方向的时候面朝也是 x 轴负方向
        if (inputDirection.x > 0)
        {
            faceDir = 1;
        }
        if (inputDirection.x < 0)
        {
            faceDir = -1;
        }

        // 人物翻转
        transform.localScale = new Vector3(faceDir * Mathf.Abs(transform.localScale.x), transform.localScale.y, transform.localScale.z);
    }
}

项目相关代码

代码仓库：https://gitee.com/nbda1121440/2DAdventure.git

标签：20240424_0220