Create the first room

Now that we have two characters, it's time to create a location for them to interact with.

In Popochiu, game locations are referred to as rooms. More broadly, a room can serve as any game screen, including splash screens, menus, or close-ups. Not all rooms need to feature characters, and the main character may be rendered invisible in specific rooms.

To create our first room, just click the Create room button in Popochiu's main dock (13).

A popup will appear, very similar to the one to create a new character. This time, an additional checkbox is available. This allows us to set the newly created room as the main scene of the Godot project. Check it out so we don't have to do it later. (If you forget, you can set it from the three dots menu next to a room.) This scene will also be the only room in this game stub.

Name the new room whatever you want. If you want to follow along, let's name this room "House" and make it the main scene.
Popochiu will create the new room, open the room scene in the editor, and open the corresponding Room tab in the plugin interface.

Much like a character, a room needs a sprite to represent the background of the location. We are going to use this background from the example game.

But hey! The room has nothing like a sprite in it! Quite the opposite, the scene tree seems to be pretty empty:

Unlike other objects in Popochiu, rooms are containers for other more specialized objects, the most important of which are Props. Props are every visible part of a location, used to make the environment believable. They can go from a small collectable item, all the way to location backgrounds.

Armed with this knowledge, it's now clear we must create a prop to hold our background. That's easy. If you followed the steps above, Popochiu dock should be showing the Home room tab.

Click the Create prop button and as usual, a new window will pop up:

Name the new prop "Background" and leave the "Will have interaction?" option unchecked. You don't want all of your screen to react to clicks when you move around.

Click OK and your prop will be created. You should see it in the scene tree, under the Props grouping node. The inspector should look something like this:

Now you can see the Prop has a Texture parameter (15). By this time you should be able to figure out what to do: Save the downloaded background sprite in the game/rooms/house/props/background/ folder, then drag it from Godot Editor file manager to the field in the inspector.
Your scene should now show the background image.

At this point you have a main character and a main scene defined. These are the minimum steps needed to run a Popochiu game. Treat yourself after all this effort, by hitting the Run button at the top right of the editor and seeing your game in action.

If you did everything right, you should see your main character standing in the center of the room. Clicking on the screen will flip the character so that it faces the cursor coordinates.