public virtual void OnPointerOut(PointerEventArguments e)
{
if (PointerOut != null)
{
PointerOut(this, e);
}
}
public virtual void OnPointerIn(PointerEventArguments e)
{
if (PointerIn != null) //Unity causes an error if we invoke an event with no subscribers, therefore we should always make sure that the event != null before invoking it
{
PointerIn(this, e);
}
}
// Update is called once per frame
void Update()
{
trigger_pressed = GetComponent <VR_inputs_controller>().trigger_pressed;
if (laserIsActive)
{
transform.Find("laser_ray_holder").gameObject.SetActive(true);
}
else
{
transform.Find("laser_ray_holder").gameObject.SetActive(false);
}
//draw the ray
float dist = 100f; //length of the ray
Ray raycast = new Ray(transform.position, transform.forward); //specify the origin and direction of the ray
RaycastHit hit; //this variable stores anything that gets hit by the ray
bool bHit = Physics.Raycast(raycast, out hit); //boolean to check for collisions with any colliders. You can also specify the float maxDistance = max distance the ray should check for collisions; since it is not specified, it will be automatically set to infinity
if (previousContact && previousContact != hit.transform)
{
PointerEventArguments args = new PointerEventArguments();
args.distance = 0f;
args.target = previousContact;
OnPointerOut(args);
previousContact = null;
}
if (bHit && previousContact != hit.transform)
{
PointerEventArguments argsIn = new PointerEventArguments();
argsIn.distance = hit.distance;
argsIn.target = hit.transform;
OnPointerIn(argsIn);
previousContact = hit.transform;
}
if (bHit) //if the ray hits a collider
{
dist = hit.distance;
pointer.transform.localScale = new Vector3(thickness, thickness, dist); //the ray has as length the distance from the ray's origin to the impact point
touchingPoint.transform.localPosition = new Vector3(0, 0, dist);
if (trigger_pressed) //if the controller's trigger is pressed while the ray hits a collider
{
//Debug.Log(hit.collider.name); //return the name of the collider
pointer.transform.localScale = new Vector3(thickness * 2f, thickness * 2f, hit.distance); //increase the thickness of the laser beam
selectedObject = hit.transform.gameObject; //select an object
}
}
else if (!bHit) //if the ray does not hit any collider
{
previousContact = null;
pointer.transform.localScale = new Vector3(thickness, thickness, dist); //the ray has full length
touchingPoint.transform.localPosition = new Vector3(0, 0, dist);
if (trigger_pressed)
{
selectedObject = null; //if the user presses the trigger in free space, there won't be any selected object
}
}
pointer.transform.localPosition = new Vector3(0f, 0f, dist / 2f);
}
private void HandlePointerOut(object sender, PointerEventArguments e) //when the laser is outside the button (PointerOut), you Deselect the button (button.SetSelectedGameObject(null)) --> it will return to white color
{
var button = e.target.GetComponent <Button>();
if (button != null)
{
EventSystem.current.SetSelectedGameObject(null);
//Debug.Log("HandlePointerOut " + e.target.name);
}
var toggle = e.target.GetComponent <Toggle>();
if (toggle != null)
{
EventSystem.current.SetSelectedGameObject(null);
}
}
//NOTE: Selecting a button is different from clicking on it
private void HandlePointerIn(object sender, PointerEventArguments e) //when the laser is on the button (PointerIn), you Select the button (button.Select()) --> it will change color
{
var button = e.target.GetComponent <Button>();
if (button != null)
{
button.Select();
//Debug.Log("HandlePointerIn " + e.target.name);
}
var toggle = e.target.GetComponent <Toggle>();
if (toggle != null)
{
toggle.Select();
}
}
