重力感应操控（unity iphone）

方案一：speed

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public var simulateAccelerometer:boolean = false; var speed = 10.0; function Update () {     var dir : Vector3 = Vector3.zero;     if (simulateAccelerometer)     {         dir.x = Input.GetAxis("Horizontal");         dir.y = Input.GetAxis("Vertical");     }     else     {         dir.x = Input.acceleration.x;         dir.y = Input.acceleration.y;               // clamp acceleration vector to unit sphere         if (dir.sqrMagnitude > 1)             dir.Normalize();         // Make it move 10 meters per second instead of 10 meters per frame...     }     dir *= Time.deltaTime;     // Move object     transform.Translate (dir * speed); }

也可以把速度换成力

方案二：Force

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public var force:float = 1.0; public var simulateAccelerometer:boolean = false;   function FixedUpdate () {     var dir : Vector3 = Vector3.zero;       if (simulateAccelerometer)     {         // using joystick input instead of iPhone accelerometer         dir.x = Input.GetAxis("Horizontal");         dir.y = Input.GetAxis("Vertical");     }     else     {         // we assume that device is held parallel to the ground         // and Home button is in the right hand                   // remap device acceleration axis to game coordinates         // 1) XY plane of the device is mapped onto XZ plane         // 2) rotated 90 degrees around Y axis         dir.x = Input.acceleration.y;         dir.y = Input.acceleration.x;                   // clamp acceleration vector to unit sphere         if (dir.sqrMagnitude > 1)             dir.Normalize();     }           rigidbody.AddForce(dir * force); }

个人感觉方案一操控起来比较灵活，反应灵敏。方案二操控起来具有惯性，缓冲明显。