public Vector3 velocity ;

Descripción

The velocity vector of the rigidbody. It represents the rate of change of Rigidbody position.

In most cases you should not modify the velocity directly, as this can result in unrealistic behaviour - use AddForce instead Do not set the velocity of an object every physics step, this will lead to unrealistic physics simulation. A typical usage is where you would change the velocity is when jumping in a first person shooter, because you want an immediate change in velocity.

Note: The velocity is a world-space property.

using UnityEngine;
using System.Collections;

// The velocity along the y axis is 10 units per second. If the GameObject starts at (0,0,0) then // it will reach (0,100,0) units after 10 seconds.

public class ExampleClass : MonoBehaviour { public Rigidbody rb;

private float time = 0.0f; private bool isMoving = false; private bool isJumpPressed = false;

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

void Update() { isJumpPressed = Input.GetButtonDown("Jump"); }

void FixedUpdate() { if (isJumpPressed) { // the cube is going to move upwards in 10 units per second rb.velocity = new Vector3(0, 10, 0); isMoving = true; Debug.Log("jump"); }

if (isMoving) { // when the cube has moved for 10 seconds, report its position time = time + Time.fixedDeltaTime; if (time > 10.0f) { Debug.Log(gameObject.transform.position.y + " : " + time); time = 0.0f; } } } }

Note: A velocity in Unity is units per second. The units are often thought of as metres but could be millimetres or light years. Unity velocity also has the speed in X, Y, and Z defining the direction.

Copyright © 2023 Unity Technologies
优美缔软件(上海)有限公司 版权所有
"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。
公安部备案号:
31010902002961