Object with an inventory

Hey everyone!
I wish to create a potion crafting system.
I had the idea to have a cauldron have its own inventory. The (third person) player adds objects to that inventory by dropping objects into the pot (hitting the collider)
The crafting system uses that inventory to create potions.
The only issue is that I’m very stuck with getting the cauldron to work with an inventory. I already made a UI but I don’t get how to make the cauldron register when the object hits the collider and to add that object to the UI
Any tips? Or help? I really suck at scripting

 

It might be better to have the cauldron scanning all things you're throwing near the water, and when one gets close enough, add it to the inventory and destroy (or hide) the actual in-game thing. You COULD do it with colliders but it's probably a lot more work.

Distance can be calculated with Vector3.Distance() given the center of the cauldron liquid blob and the inventory item. That's how I would do it in any case.

 

That’s smart! But I still don’t get how to actually script that though...