Add an inventory item

The inventory is where your player will collect all items that will be useful to progress in your game.
In Popochiu, inventory items are global objects, like rooms or characters. They have a script, to hold all the game logic related to them, and a texture, so that they can be rendered somewhere in the GUI.

To create a new inventory item click on the Create Inventory Item button in the tab room of the Popochiu dock (32), and name the new item in the popup window that appears.

We'll name our new inventory item "ToyCar", because we are going to make the prop we just created collectible. Go on and click OK. Popochiu will open the new inventory item's scene in the editor.

Inventory items are very simple. They have no interaction polygons or similar because representing them in an interactive grid of sorts is the responsibility of the GUI.

The only thing we need to do is to assign a texture to them, that will be painted in the inventory GUI by Popochiu.

If you don't have a sprite ready for your inventory item, you can download this one from the demo game.

Save it into your project, in the game/inventory_items/<your inventory item name>/inv_toy_car.png folder, and rename it as you see fit.

Assigning the texture to the inventory item is done the same as props, by dragging the image from the FileSystem to the Texture property in the inspector (33).

That's it. Your inventory item is configured and it is now possible to add it to the main character's inventory.

We are going to script this part by interacting with the toy car prop we placed in our room.

Go back to the room scene (you can press the Open in Editor button on the "House" room row in Popochiu's main dock) and use the room tab to open the "ToyCar" prop script.

If you've followed along, you will see that we just scripted the examine interaction for it, implementing the _on_right_click() function. It's now time to write an _on_click() function that allows us to pick the prop up and add it to the inventory.

# When the node is clicked
func _on_click() -> void:
    await C.player.walk_to_clicked()
    await C.player.face_clicked()
    await C.player.say("Better picking them up, before I trip over it!")
    R.get_prop("ToyCar").hide()
    I.ToyCar.add()

Save the project and run the game. Now if you click on the toy car on the floor, the main character will say its line, and then the item will disappear from the scene and appear in the inventory.