Help on inventory

I know that's asking a lot but I need a grid helps. I wanted to create an inventory with only two items where one is water and the other is eaten. That when using the water will raise the variable headquarters and seat bar. The hunger increase the hunger bar and almentaria variable and also a bit of hp. Can you help me?

Have you looked into drag and drop behavior? You can define a drop area and an item that is a draggable element. You can then detect when an element is dragged over the top of the defined droppable area and then add or subtract from variables.

I struggled a little bit to understand your question, so forgive me if I am misunderstanding.

Can you send me a simple example? "capx"