Keep GameObject on a corner of the screen

Question

 var guiCam : GameObject;
 var targetPos : Vector3;
 
 function Update () 
 {
     transform.localPosition = guiCam.camera.ScreenToViewportPoint(targetPos);
 }

Hi, well, the thing is that I have this script attached to the gameobject that I want to keep on the corner independently of the screen resolution, and the gameobject is a child of my GUI camera (which renders all of my gui stuff), but I can't get it to work, I adjust the desire position and everything but when I go fullscreen it goes out of the screen, so it's basically not working. I don't know what I'm doing wrong. Please help! Thanks in advance.

Answer 1

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Answer by robertbu · Jun 27, 2013 at 02:10 AM

You have an issue that is solvable by using blender or by using an empty game object. That is, you need the pivot/anchor/origin of the hunger meter to be in the corner you want to anchor. You can do this by moving the pivot to the corner in blender, or by placing an empty game object in the corner and making the hunger meter a child of the empty game object. Then you can use Camera.ViewportToWorldPoint() to position the hunger meter. Note you will need to specify a distance in front of the camera to position the object.

 var v3Pos = Vector3(0.0, 1.0, 0.25);
 transform.position = gui.camera.ViewportToWorldPoint(v3Pos);

The above lines will place the object in the upper left corner of the screen 0.25 units in front of the camera.

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Diekeke · Jun 27, 2013 at 02:19 AM 0

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Wow! I'll definately try that! I'll let you know by tomorrow :)

Diekeke · Jun 27, 2013 at 08:48 PM 0

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Oh my god it totally works! Thank you so much!

Diekeke · Jun 27, 2013 at 09:11 PM 0

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And if I wanted to do the same thing but with the health meter (GUITexture) so there wouldn't be any other problem?

robertbu · Jun 27, 2013 at 11:55 PM 0

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Actually GUITextues use Viewport coordinates already, so you can set the position directly and expect it to change for different screen resolutions/ratios.

Diekeke · Jun 28, 2013 at 04:51 PM 0

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Yeah, but is not 100% accurate, in some resolutions everything's okay, but in others, the H.M. is a little bit to the right according to the L.M., and in others, the L.M. is offset as well, so it doesn't looks so good because they have to be perfectly aligned. Is this something that can be fixed, or do I just have to live with it?

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Keep GameObject on a corner of the screen

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