Well I'll consider that you know how to make it move in any direction. For a normal reflection you should reflect the movement direction using the normal vector of collision. You can get the normal from the parameter returned by the collision handler function

function OnControllerColliderHit (hit : ControllerColliderHit)
{
var normal : Vector3 = hit.normal;
}

After this you can reflect the movement using the Reflect function:

 var reflectionDirection : Vector3 = Vector3.Reflect( movementCurrentDirection, normal);

This will be a perfect reflect, if you want something random, you should rotate the normal vector or the final reflected vector by a little random angle.

 randomReflectDirection = Quaternion.Euler( 0, 0, littleRandNumHere ) * reflectionDirection;

Sorry to border you again.

I made some research and I did what you said but with this code the boxes collide with each other not just the wall and now they don’t reflect the movement on collision, they go on predefined direction, collide with the wall for some time until get out of bounds.

Any help?

public var speed : float;

private var movementCurrentDirection = Vector3.zero;

private var controller : CharacterController;

function Start (){

movementCurrentDirection = transform.TransformDirection(speed,speed,0);

}

function Update() {

controller = GetComponent(CharacterController);

controller.Move(movementCurrentDirection * Time.deltaTime);

}

function OnControllerColliderHit(hit:ControllerColliderHit){

if(hit.gameObject.tag == "Wall") {

var normal : Vector3 = hit.normal;

var reflectionDirection : Vector3 = Vector3.Reflect(movementCurrentDirection, normal);

movementCurrentDirection = reflectionDirection; } }

Hi! Thanks, you were a great help. My problem is solved. The final code is below for everyone who need it. Thanks again ^^

public var speed : float;

private var movementCurrentDirection = Vector3.zero;

private var controller : CharacterController;

public var reflectRepeatTime : float;

private var lastReflectTime: float;

function Start (){

movementCurrentDirection = transform.TransformDirection(speed,speed,0);

}

function Update() {

controller = GetComponent(CharacterController);

controller.Move(movementCurrentDirection * Time.deltaTime); }

function OnControllerColliderHit(hit:ControllerColliderHit){

if(hit.gameObject.tag == "Wall") { if(lastReflectTime + reflectRepeatTime > Time.time) return; lastReflectTime = Time.time; var normal : Vector3 = hit.normal; var reflectionDirection : Vector3 = Vector3.Reflect(movementCurrentDirection, normal); var randomReflectDirection = Quaternion.Euler( 0, 0, Random.Range(-80, 80)) * reflectionDirection; movementCurrentDirection = randomReflectDirection;

Debug.DrawLine (transform.position, transform.position+reflectionDirection, Color.blue, 60); Debug.DrawLine (transform.position, transform.position+normal, Color.red, 60); } }

OnControllerColliderHit don’t work and I don’t know why. So I did the code bellow with OnCollisionEnter and collision work but the boxes after a while get out of bounds or get stuck on the walls .

Anyone known how so resolve this problem?

var speed : float;

private var movementCurrentDirection = Vector3.zero;

function Start (){

movementCurrentDirection = transform.TransformDirection(speed,speed,0);

}

function Update() {

transform.Translate(movementCurrentDirection);

}

function OnCollisionEnter(collision : Collision) {

if(collision.collider.tag == "Wall") {

 var contact : ContactPoint = collision.contacts[0];
 var normal = contact.normal;
 var reflectionDirection : Vector3 = Vector3.Reflect(movementCurrentDirection, normal);
 movementCurrentDirection = reflectionDirection;

} }