新建一个TestFlay.js脚本，内容如下：
var speed = 6.0;
var jumpSpeed = 8.0; var gravity = 0; private var moveDirection = Vector3.zero; private var grounded : boolean = false; function FixedUpdate() { my=moveDirection.y; moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical")); moveDirection = transform.TransformDirection(moveDirection); if (grounded) { moveDirection *= speed; } else { moveDirection *= speed+transform.position.y/5; moveDirection.y=my; } if(transform.position.y>=6){ if(Input.GetKey ("e")) {//按下e键向下飞行 transform.Translate(0, -1, 0); } } if (Input.GetKey ("q") ) { //按下q键向上飞行 transform.Translate(0, 1, 0); } if(Input.GetKey("left shift")) { speed=6*5; } else { speed=6; } moveDirection.y -= gravity * Time.deltaTime; var controller : CharacterController = GetComponent(CharacterController); var flags = controller.Move(moveDirection * Time.deltaTime); grounded = (flags & CollisionFlags.CollidedBelow) != 0; } @script RequireComponent(CharacterController) private var myWalker: FPSWalker=null; var maxHeight: float=250; function Start () { myWalker = gameObject.GetComponent(FPSWalker); } @script RequireComponent(FPSWalker) 将它绑定到First Person Controller上，然后将前面的对勾勾掉。 再建一个脚本Fly.js，内容为： var play:GameObject; function Update () { } function OnGUI(){ if(GUI.Button(Rect(215,280,75,30),"Normal-Walk")){ play.GetComponent("FPSWalker").enabled = false; play.GetComponent("TestFly").enabled = true; } if(GUI.Button(Rect(230,200,50,30),"Start-Fly")){ play.GetComponent("FPSWalker").enabled = true; play.GetComponent("TestFly").enabled = false; } } 将其绑定到一个新建的GameObject上，运行即可看到效果。转载于:https://www.cnblogs.com/Mygirl/archive/2011/04/02/2003105.html
相关资源：JAVA上百实例源码以及开源项目