How to do ball movement depending on Iphone Orientation

Target Platforms Mobile
1

Hi All,

How to do ball movement depending on Iphone Orientation

Thanks

2

There is an example in the iPhone examples of how to roll a ball.

3

Here’s some code I wrote to demonstrate this exact thing to someone…

(I think its a heavily documented and slightly re-written ball tutorial, I don’t remember)

// How much force we apply to the ball when we tilt the device
var tiltforce = 1.0;

// How high should we let the ball jump when the device is shaken?
var jumpHeight = 5.0;

// Time in seconds between allowable jumps
var jumpDelay = 0.75;

// Sensitivity
var kEraseAccelerationThreshold = 3.0;

// A private variable, because there is no need for it to be editable in the Inspector
private var jumpAllowed = true;

function FixedUpdate () {
	var dir : Vector3 = Vector3.zero;

	// Lets 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 = -iPhoneInput.acceleration.y;
	dir.z = iPhoneInput.acceleration.x;
	
	// clamp acceleration vector to unit sphere
	if (dir.sqrMagnitude > 1) dir.Normalize();
	
	rigidbody.AddForce(dir * tiltforce);
}

function Update()
{
	if (jumpAllowed) checkForShake();
	if (Input.GetMouseButtonDown(0)  jumpAllowed) jumpBall();
}

function checkForShake()
{
	var accel = iPhoneInput.acceleration; 
	
	var x = accel.x; 
	var y = accel.y; 
	var z = accel.z; 
	    
	var length = Mathf.Sqrt(x * x + y * y + z * z); 
	    
	if (length >= kEraseAccelerationThreshold) { 
		// Send the ball into the air
		jumpBall();
	   }	
}

function jumpBall()
{
	rigidbody.velocity.y = jumpHeight;
	
	 // Do not allow another jump (or they'll be able to jump the ball out of the level)
     jumpAllowed = false;
     
     // Yield for the jumpDelay
     yield WaitForSeconds(jumpDelay);
     
     // Re-enable jumping
     jumpAllowed = true;
}
4

Hey this is really cool thanks for posting!