Unity3d 刚体

using UnityEngine;
using System.Collections;

public class rigidbody_ : MonoBehaviour {
    private Rigidbody r;
    void Start () {
        //Rigidbody rb = GetComponent<Rigidbody>();
        //float mass = rb.mass; //质量
        //float drag = rb.drag;//空气阻力
        //float angulaDrag = rb.angularDrag;//脚阻力
        //rb.useGravity;//表示当前对象是否受到重量影响
        //rb.isKinematic;//是否使用动力学
        //rb.freezeRotation = false;//是否冻结游戏对象的旋转

        r = GetComponent<Rigidbody>();
    }

    void Update () {
        if (Input.GetKeyDown(KeyCode.UpArrow))
        {
            print("up");
            //给当前对象施加一个力
            r.AddForce(new Vector3(0f, 1000f, 0f));

            //给当前对象添加力矩/扭矩
            //r.AddTorque(new Vector3(0, 10, 0));

            //给对象添加一个指定在某个位置的力
            //r.AddForceAtPosition(new Vector3(0, 10, 0), new Vector3(0.5f, 0.5f, 0.5f));

            //在指定位置增加一个爆炸力;大小，位置，范围
            //r.AddExplosionForce(1500f, Vector3.zero, 4f);
        }
    }
}