重力感应操控（unity iphone）

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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);

}

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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);

}