How combine items in inventory with drag and drop (c#)

Questions & Answers
1

Hi I need create a combine system in inventory with drag and drop items on each other
I just want when player click and holding item-n1 and release it on item-n2 unity(c#) turn off item-n1 & item-n2 and turn on item-n3
How I can do that
Please at first offer me a tutorial video on YouTube
Thanks for sharing your science

2

I beg all of u please if know solution for my problem tell me
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3

OK, trying to be helpful here.

Simply perform your drag using the onMouseDown and onMouseUp functions ([link text][1]).

Then you can compare the colliders of the two objects in an onCollision event. ([link text][2]).

In there, you’re basically identifying which item collided with which other item. Once you identify it’s n1 and n2, then you can disable or destroy n1 and n2 and instantiate or enable/unhide item n3.

This is very basic. If you think about it, all you’re doing is what we do in Unity everyday! A missile collides with an item and both are replaced with a prefab containing explosion and shrapnel. Simple right? If you can see/understand how that’s done, then you’re going to do the exact same thing here. Item 1 collides with Item 2 (the mouse is released) and then both are replaced with Item 3.

Please let me know if this helps or not.
[1]: Unity - Scripting API: MonoBehaviour.OnMouseDown()
[2]: Unity - Scripting API: Collider.OnCollisionEnter(Collision)