【Unity 3D学习】键盘控制人物在场景中移动

1、第一种状况，键盘左右键控制人物旋转，让人物能够面向四方，而后上下键控制移动。spa

public float speed = 3.0F;
public float rotateSpeed = 3.0F;
CharacterController controller;
void Start () {
     controller = GetComponent<CharacterController>();
}
void Update() {
     transform.Rotate(0, Input.GetAxis("Horizontal") * rotateSpeed, 0);
     Vector3 forward = transform.TransformDirection(Vector3.forward);  //注意这个方法
     float curSpeed = speed * Input.GetAxis("Vertical");
     controller.SimpleMove(forward * curSpeed);
}

public float speed = 6.0F;
public float jumpSpeed = 8.0F;
public float gravity = 20.0F;
private Vector3 moveDirection = Vector3.zero;
CharacterController controller;
void Start () {
     controller = GetComponent<CharacterController>();
}
void Update() {
     if (controller.isGrounded) {
          moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
          moveDirection = transform.TransformDirection(moveDirection);
          moveDirection *= speed;
          if (Input.GetButton("Jump"))
               moveDirection.y = jumpSpeed;
     }
     moveDirection.y -= gravity * Time.deltaTime;
     controller.Move(moveDirection * Time.deltaTime);
}