嗨，我的 2D 游戏角色传送得高了一点，然后他下降得很慢，当我按下跳跃按钮时，他就像一片树叶

Question

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如果我一直按下按钮，它会一直上升。当我删除用于向左移动或向右移动的脚本时，效果很好，但是当我添加它时，我遇到了这个问题。这是我的代码

` { Rigidbody2D rb;

float dirX;
float jumpForce = 300f;
float moveSpeed = 5f;







void Start()
{
    rb = GetComponent<Rigidbody2D>();
}
void Update()
{
    dirX = CrossPlatformInputManager.GetAxis("Horizontal");
    rb.velocity = new Vector2(dirX * 10, 0);

    

    if (CrossPlatformInputManager.GetButtonDown("Jump"))
        DoJump();
}  
    void DoJump()
    {
        if (rb.velocity.y == 0)
            rb.AddForce(new Vector2(0, jumpForce), ForceMode2D.Force);
    } 
    
}`

Answer 1

rb.velocity = new Vector2(dirX * 10, rb.velocity.y);

rb.AddForce(new Vector2(rb.velocity.x, jumpForce), ForceMode2D.Force);

Answer 2

是的，只需要做这些更改

rb.velocity = new Vector2(dirX * 10, rb.velocity.y);

rb.AddForce(new Vector2(rb.velocity.x, jumpForce), ForceMode2D.Force);

嗨，我的 2D 游戏角色传送得高了一点，然后他下降得很慢，当我按下跳跃按钮时，他就像一片树叶

Hi, my 2D game character teleport a little bit higher, and then he come down very slow, like a leaf when i press the jump button

c#

unity3d

2d