Keeping Clicking NGUI widget from going through

[Lautaro]

Hi!

Do NGUI has a solution to prevent gui clicks to go through and trigger other scripts? My droid goes where i click and when i click an NGUI button the droid moves to that position.

[ArenMook]

If you are using NGUI events everywhere, then this is done for you automatically. If you are doing your own Input.Get processing, then you need to do your own logic (UICamera.hoveredObject != null, do your thing).

[Lautaro]

Ok, so if i get it correctly i can use GUICamera on my main camera so that my gameobjects can use NGUI events. And then i dont need to check what is hit first by the mouse?

[Lautaro]

I have a main camera and a NGUI camera for the UI. I have attached the UICamera on the main camera to get the NGUI events.
My player droid is drawn with the main camera (but its not underneath the main camera in the hierarchy). The droid has a box collider2D.  The droid script has this on it:

1.         void OnHover (bool isOver)
2.                 {
3.                                 if (isOver) {
4.                                                 print ("i am hovered");
5.                                 } else {
6.                                                 print ("NOT");
7.                                 }
8.                 }

But nothing happens when i mouse over it. Should it work with 2dcolliders?

[Lautaro]

This is what the Main Camera looks like http://i.imgur.com/wJiC1TY.png
I also tried with a 3D capsule with a normal collider but it does not work.

[Nicki]

As far as I know, no it doesn't work with 2d colliders as the physics system is fundamentally different and 2d can't collide with 3d. It's fairly straight forward to make your own though - like arenmook wrote, check for if UICamera.hoveredObject == null, then your game can use the touch that can be found in the Input class.

[ArenMook]

Yeah it has to be a 3D collider. For 2D you would need to do your own custom input logic (just Raycast2D basically).

[Lautaro]

Nicki. Thanks for the help, but could you give an example even if it is pseudo code? Im having a hard time getting my head around it.

[Lautaro]

AreenMook Would you suggest that i use 3D rigidbodies and colliders for my 2D game instead of 2D so that i can use NGUI events and make sure the clicks dont go through or will that be a bad choice for a 2D game?

[ArenMook]

Naw... I'll just go ahead and add support for the 2D system raycasts into NGUI 3.5.0.

Edit: Done. It's in the Pro repository now so you will see it when it goes live.

[Lautaro]

Sorry. Does that mean that i can get the update from the Unity Asset Store?

[ArenMook]

No, professional repository = Pro licenses. It gets updated more frequently because with full version history and all versions available I can update it more frequently without worrying about impacting / breaking things as much. Asset store will have it once I'm done tweaking it.

[Lautaro]

Im using the paid NGUI version, but you are talking about the Pro Unity version right? If i use the free Unity i will have to wait untill you release the update in the asset store?

[ArenMook]

Professional version of NGUI is not the same thing as the Professional version of Unity. You can have NGUI Pro in Unity free. As I mentioned, NGUI Pro just gives you access to the latest features that may or may not be fully polished. It's a different license.

[Lautaro]

I just downloaded the latest NGUI . The readme says
"3.5.0
.........
- NEW: UICamera now has a new event type that supports 2D colliders."

I have this script on one gameObject with a normal collider and another with a 2dCollider but the 2Dcollider do not get any events.

1. void OnHover (bool isOver)
2.                 {
3.                                 if (isOver) {
4.                                                 print ("NGUI FTW");
5.                                 }
6.  
7.                 }
8.  
9.                 void OnPress (bool isDown)
10.                 {
11.                                 if (isDown) {
12.                                                 print ("NGUI CLICK!");
13.                                 }
14.                 }

The main camera has the UICamera script on it.