Clamp fully within screen size

I am developing a 2D game and want to clamp my object within the screen size. I am using the following code to do so:

Code (csharp):

1.  
2. //Check & correct if object is outside of screen boundaries
3. Vector3viewPos = Camera.main.WorldToViewportPoint(selected_GameObject.transform.position);
4. viewPos.x = Mathf.Clamp01(viewPos.x);
5. viewPos.y = Mathf.Clamp01(viewPos.y);
6. selected_GameObject.transform.position = Camera.main.ViewportToWorldPoint(viewPos);
7.  

This works except that half of the game objects is outside of the screen boundary and I do not want any of the game object to get outside of the screen..

I then tested with initiating the size of the game object with the following code to get 50% of the objects size:

Code (csharp):

1.  
2. objWidth = selected_GameObject.renderer.bounds.extents.x;
3. objHeight = selected_GameObject.renderer.bounds.extents.y;
4.  

I am testing with the cardWidth & cardHeight to try to impact the clamp in various ways but do not get it to work properly. Looking at it it looks pretty simple.

Would really appreciate if someone can help me out with this piece of code to make sure that 100% of the object stay on the screen at all times.

 

use a Mathf.Clamp(viewPos.x, objWidth/2, Screen.width - objWidth/2); ?

 

I am afraid it does not work, causes no boundaries at all.

 

I did not get the Clamp to work properly but solved it with this code:

Code (csharp):

1.  
2. //Check & correct if object is outside of screen boundaries
3. floatfinalWidth = maxWidth - cardWidth;
4. floatfinalHeight = maxHeight - cardHeight;
5.  
6. if (selected_GameObject.transform.position.x <= -finalWidth) {
7. selected_GameObject.transform.position = newVector3(-finalWidth, selected_GameObject.transform.position.y, selected_GameObject.transform.position.z);
8. }
9. elseif (selected_GameObject.transform.position.x >= finalWidth) {
10. selected_GameObject.transform.position = newVector3(finalWidth, selected_GameObject.transform.position.y, selected_GameObject.transform.position.z);
11. }
12.  
13. if (selected_GameObject.transform.position.y <= -finalHeight) {
14. selected_GameObject.transform.position = newVector3(selected_GameObject.transform.position.x, -finalHeight, selected_GameObject.transform.position.z);
15. }
16. elseif (selected_GameObject.transform.position.y >= finalHeight) {
17. selected_GameObject.transform.position = newVector3(selected_GameObject.transform.position.x, finalHeight, selected_GameObject.transform.position.z);
18. }
19.  

 

Now that was very nice of you and it finally worked, BIG thank you @superpig ...and yes I did not implement it correctly and now i learned how to use it. This is a significantly more elegant solution.