Rigidbody.GetPointVelocity

描述

刚体在全局空间中 worldPoint 点的速度。

在计算速度时，GetPointVelocity 会考虑刚体的角速度。

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public Rigidbody rb;

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

    // Get the velocity of a wheel, specified by its position in local space.
    Vector3 CalcWheelVelocity(Vector3 localWheelPos)
    {
        return rb.GetPointVelocity(transform.TransformPoint(localWheelPos));
    }
}