角色不會在Unity2D中跳轉，但會進入跳轉語句

Question

我的統一對象中的播放器控制腳本（C＃）有點問題。我根據玩家的基本動作制定了以下腳本。問題是播放器可以輸入跳轉語句（調試日誌打印出來） Debug Log 但它不起作用。角色仍然在地上。 當玩家在地面（接地）並且沒有雙跳時，跳躍功能將被啓用。 所以我的問題是有沒有「代碼錯誤」或者我沒有看到的一些配置問題？

非常感謝您的幫助！

using UnityEngine; 
using System.Collections; 
public class PlayerControl : MonoBehaviour 
{ 

    // public variables 
    public float speed = 3f; 
    public float jumpHeight = 5f; 

    // private variables 
    Vector3 movement; 
    Animator anim; 
    Rigidbody2D playerRigidbody; 

    // variables for the ground check 
    public Transform groundCheck; 
    public float groundCheckRadius; 
    public LayerMask whatIsGround; 
    private bool grounded; 
    private bool doubleJump; 

    // Use this for initialization 
    void Start() 
    { 

    } 

    // Update is called once per frame 
    void Update() 
    { 
     // Proves if the player is on the ground and activate the double jump function 
     if (grounded) 
     { 
      doubleJump = false; 
     } 

     // First line of proving the jump 
     if (Input.GetMouseButtonDown(0) && grounded) 
     { 
      Debug.Log("Jump if entered"); 
      Jump(); 
     } 

     if (Input.GetMouseButtonDown(0) && !doubleJump && !grounded) 
     { 
      Debug.Log("double Jump"); 
      Jump(); 
      doubleJump = true; 
     } 


     // Flipping the Player when he runs back 
     if (Input.GetAxis("Horizontal") < 0) 
     { 
      playerRigidbody.transform.localScale = new Vector2(-1.7f, 1.7f); 
     } 

     else 
     { 
      playerRigidbody.transform.localScale = new Vector2(1.7f, 1.7f); 
     } 
    } 

    void Awake() 
    { 
     // References setting up 
     playerRigidbody = this.GetComponent<Rigidbody2D>(); 
     anim = GetComponent<Animator>(); 
    } 

    void FixedUpdate() 
    { 
     float horizontal = Input.GetAxisRaw("Horizontal"); 
     float vertical = Input.GetAxisRaw("Vertical"); 

     // simple Movement without a speed control 
     Move(horizontal, vertical); 
     Animating(horizontal, vertical); 

     // Section for ground detection 
     grounded = Physics2D.OverlapCircle(groundCheck.position, groundCheckRadius, whatIsGround); 

     // Set the parameter for the jump animation false or true 
     anim.SetBool("Grounded", grounded); 
    } 

    void Move(float horizontal, float vertical) 
    { 
     movement.Set(horizontal, 0f, vertical); 
     movement = movement.normalized * speed * Time.deltaTime; 

     playerRigidbody.MovePosition(transform.position + movement); 
    } 

    void Jump() 
    { 
     playerRigidbody.AddForce(Vector3.up * jumpHeight); 
     // playerRigidbody.AddForce(new Vector2(0f, jumpHeight), ForceMode2D.Impulse); 
     Debug.Log("Jump function"); 
    } 

    void Animating(float h, float v) 
    { 
     bool walking = h != 0f || v != 0f; 
     anim.SetBool("IsWalking", walking); 
    } 
} 

Answer 1

只是猜測在這裏，但也許Vector3.up不適用於2D物理？我不是真的進入2D，但你可以嘗試

playerRigidbody.AddForce(transform.up * jumpHeight); 

改爲。

另外，你有沒有嘗試jumpHeight不同的值？ 5取決於你爲剛性體設置的質量，可能是小到小的方式。 並確保您沒有限制檢查器中的任何軸。

Answer 2

// Note: If you want the object to move in a reliable predictable way but still allow physics interactions, use MovePosition (set the object to kinematic if you want it to be unaffected by physics but still be able to affect other things, and uncheck kinematic if you want both objects to be able to be acted on by physics. 

If you want to move your object but let physics handle the finer details, add a force. 

playerRigidbody.rigidbody2D.AddForce(Vector3.up * 10 * Time.deltaTime); 

use Vector.up, Vector.down, vector.right, Vectore.left along with time.deltaTime to have smooth movement along the frame.