如何使用RigidBody2D Velocity阻止角色感觉像在冰上?

本文关键字：感觉角色 RigidBody2D 何使用 Velocity | 更新日期: 2023-09-27 18:08:31

我目前使用RB2D速度移动，但我不能让它停止滑动后，我已经完成按下按钮。感觉就像《马里奥》中的冰关卡。我该如何阻止角色到处滑动?

我的代码是:

void Movement() {
     if (Input.GetAxisRaw ("Horizontal") > 0.1) {
         GetComponent<Rigidbody2D> ().velocity = new Vector2 (speed, GetComponent<Rigidbody2D> ().velocity.y);
     }
     if (Input.GetAxisRaw ("Horizontal") < -0.1) {
         GetComponent<Rigidbody2D> ().velocity = new Vector2 (-speed, GetComponent<Rigidbody2D> ().velocity.y);
     }
     if (Input.GetAxisRaw ("Vertical") > 0.5 && grounded) {
         GetComponent<Rigidbody2D> ().velocity = new Vector2 (GetComponent<Rigidbody2D> ().velocity.x, jumpHeight);
     }
}

我的速度设置为5，跳跃高度设置为10并且我的播放器上同时有box collider和RigidBody2D

感谢您的帮助

如何使用RigidBody2D Velocity阻止角色感觉像在冰上?

你可以在按下键时使用变换来移动对象，直接移动它而不使用物理。

同样使用速度，当你不按任何按钮停止移动物体时，你可以将其设置为0.0f。

crabcrabcam现在使用:

    void Movement() {
    if (Input.GetAxisRaw ("Horizontal") > 0.1) {
        GetComponent<Rigidbody2D> ().velocity = new Vector2 (speed, GetComponent<Rigidbody2D> ().velocity.y);
    } else if (Input.GetAxisRaw ("Horizontal") < -0.1) {
        GetComponent<Rigidbody2D> ().velocity = new Vector2 (-speed, GetComponent<Rigidbody2D> ().velocity.y);
    } else if (Input.GetAxisRaw("Horizontal") == 0 && grounded) {
        GetComponent<Rigidbody2D> ().velocity = new Vector2 (Vector2.zero, GetComponent<Rigidbody2D> ().velocity.y);
    }

    if (Input.GetAxisRaw ("Vertical") > 0.5 && grounded) {
        GetComponent<Rigidbody2D> ().velocity = new Vector2 (GetComponent<Rigidbody2D> ().velocity.x, jumpHeight);
    }
}

这使得它在空中漂浮，但在地面时它会响应性地停止:)

将else if添加到第二个if语句中，然后再添加一个else语句来停止播放器的移动。

if (Input.GetAxisRaw("Horizontal") > 0.1)
{
Move right
}
else if (Input.GetAxisRaw("Horizontal") < -0.1)
{
Move left
}
else
{
Stop moving/Vector2.zero;
}

也许像这样:

void Movement()
{
    if (Input.GetAxisRaw("Horizontal") > 0.1)
    {
        GetComponent<Rigidbody2D>().velocity = new Vector2(speed, GetComponent<Rigidbody2D>().velocity.y);
    }
    else if (Input.GetAxisRaw("Horizontal") < -0.1)
    {
        GetComponent<Rigidbody2D>().velocity = new Vector2(-speed, GetComponent<Rigidbody2D>().velocity.y);
    }
    else
    {
        GetComponent<Rigidbody2D>().velocity = Vector2.zero;
    }
    if (Input.GetAxisRaw("Vertical") > 0.5 && grounded)
    {
        GetComponent<Rigidbody2D>().velocity = new Vector2(GetComponent<Rigidbody2D>().velocity.x, jumpHeight);
    }
}

您应该使用Input.GetAxis("Horizontal")。下面是一个简单的代码示例:

public float maxSpeed = 10f;
public float jumForce = 700f;
public Transform groundCheck;
float groundRadius = 0.2f;
public LayerMask whatIsGrounded;
bool grounded = false;

void FixedUpdate()
{
    grounded = Physics2D.OverlapCircle(groundCheck.position, groundRadius, whatIsGrounded)
    float move = Input.GetAxis("Horizontal");
    rigidbody2D.velocity = new Vector2(move * maxSpeed, rigidbody2D.velocity.y);
}
void Update()
{
    if(grounded &&  Input.GetKeyDown(KeyCode.Space))
    {
        rigidbody2D.AddForce(new Vector2(0, jumpForce));
    }
}

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