koobas.hobune.stream
Can you use a cube to bring up a UI?
Any help with this will be super appreciated because I am getting no where on my own.
What I want to do is click on a cube which will bring up a UI canvas, which will then play a movie. So far I can click and bring up the canvas (with my movie playing), but I can click anything and it will bring up the canvas.
This is my script:
public class ClickCube : MonoBehaviour {
Canvas canvas;
public GameObject Clickcube;
void Start()
{
canvas = GetComponent<Canvas>();
canvas.enabled = false;
}
void Update()
{
if (Input.GetKeyDown(KeyCode.Mouse0))
{
Pause();
}
}
public void Pause()
{
canvas.enabled = !canvas.enabled;
Time.timeScale = Time.timeScale == 0 ? 1 : 0;
}
}
At this point I am beginning to wonder if using a cube to bring up a UI is even possible! Also, I'm pretty new to Unity so any help at all will be amazing. Thank you!
You misunderstood how Input.GetKeyDown works.
if (Input.GetKeyDown(KeyCode.Mouse0))
{
Pause();
}
This will be called whenever you left-click, not when you left-click on the GameObject this script is attached to.
To detect if you actually clicked your GameObject, and not just a random point of the screen, you'll have to use a Raycast.
First, you detect a click, just like you already do, then you check what you hit with that click.
void Update ()
{
if (Input.GetMouseButtonDown(0))
{
// Create a ray going from camera to the screen point
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
// Check if the ray hits a collider
if (Physics.Raycast(ray, out hit))
{
// Check if the collider we hit is attached to the current GameObject
if (hit.collider.gameObject == gameObject)
{
Pause();
}
}
}
}
Don't forget to add a Box Collider to your cube, and you're good to go.
Thanks so much for getting back to me!
I put your code in, but when I click on the cube this error comes up:
NullReferenceException: Object reference not set to an instance of an object OnClick.Play () (at Assets/Script/OnClick.cs:36) OnClick.Update () (at Assets/Script/OnClick.cs:27)
So I changed the coding slight to try and directly link in the UI that I want to bring up (as I figured that was what the error was about). I made this change:
// Check if the collider we hit is attached to the current GameObject if (hit.collider.gameObject == gameObject) { GetComponent(); Pause();
But I still get the same error.
Any advice? Sorry if I'm missing something really obvious. Thank you.
I got it to work now! Here is what I did:
public class OnClick : $$anonymous$$onoBehaviour
{
Canvas canvas;
void Start()
{
canvas = GetComponent<Canvas>();
canvas.enabled = false;
}
void Update()
{
if (Input.Get$$anonymous$$eyDown($$anonymous$$eyCode.$$anonymous$$ouse0))
{
// Create a ray going from camera to the screen point
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
// Check if the ray hits a collider
if (Physics.Raycast(ray, out hit))
{
// Check if the collider we hit is attached to the current GameObject
if (hit.collider.gameObject == gameObject)
{
Play();
}
}
}
}
public void Play()
{
canvas.enabled = !canvas.enabled;
Time.timeScale = Time.timeScale == 0 ? 1 : 0;
}
}
I think I just missed out bit from my original script when incorporating your one. Thank you so much for your help, this has been driving me crazy for way too long.
