Space Shooter 太空射击

public float speed = 10f;
public float xMin = -6.5f;
public float xMax = 6.5f;
public float zMin = -4.5f;
public float zMax = 4.5f;

void FixedUpdate()
{
float h = Input.GetAxis("Horizontal");
float v = Input.GetAxis("Vertical");
Vector3 move = new Vector3(h, 0f, v);
rigidbody.velocity = speed * move;
//限制飞机活动范围，这个类似设置transform.position
rigidbody.position = new Vector3(
Mathf.Clamp(rigidbody.position.x, xMin, xMax),
0,
Mathf.Clamp(rigidbody.position.z, zMin, zMax)
);
}

public void OnTriggerExit(Collider other)
{
Destroy(other.gameObject);
}

float tumble = 5;
void Start()
{
//随机一个角速度
rigidbody.angularVelocity = Random.insideUnitSphere * tumble;
}

public float speed = 10f;
//speed为正值，对象向前移动，为负值，向后移动
rigidbody.velocity = speed * transform.forward;