Version: 2023.1
public float velocityX ;

描述

The X component of the linear velocity of the Rigidbody in units per second.

This property allows you to read or write only the X component of the linear velocity of the Rigidbody without affecting the Y component if the linear velocity.

See Also: Rigidbody2D.velocity and Rigidbody2D.velocityY.

using UnityEngine;

// Ensure that the maximum horizontal speed moving right isn't larger than the configurable value. public class Example : MonoBehaviour { public float MaximumSpeedRight = 2f;

private Rigidbody2D rb;

void Start() { rb = GetComponent<Rigidbody2D>(); }

void FixedUpdate() { // Clamp the horizontal speed. if (rb.velocityX > MaximumSpeedRight) { rb.velocityX = MaximumSpeedRight; } } }