0. Prepare your project and a practice level

Goal: Prepare the workspace for a small economy.

Before you start: Unreal with the plugin installed; know how to create an Actor and connect Blueprint nodes.

The idea you will use

The project will hold a balance, production and purchase buttons, and a save. Start by isolating the exercise from your game rules.

Predict before running

Will an empty level print a number just because the plugin is enabled?

Build and check

You need an Unreal project with Scientific Number Tools installed, enabled, and built for your engine version. The exercises below start from scratch using public nodes from the plugin and Unreal.

1. Open your project. If it is running, stop Play before editing.
2. Press Ctrl+Space to open the Content Drawer. You can also use Window → Content Browser → Content Browser 1.
3. Inside Content, create a folder named ScientificNumberPractice. Inside it, create Blueprints, UI, and Data. These names organize the assets you will make during the guide.
4. Use File → New Level → Empty Level. If you have changes in the previous level, save them first. Save the new level inside ScientificNumberPractice as L_MiPractica.
5. Open World Settings and set GameMode Override = GameModeBase so your game rules do not add an unrelated interface or character to the exercise.
6. Save with Ctrl+S. If you already created these folders and this level while following the guide, continue using them; you do not need duplicates.

What you should see: an empty practice level. When you press Play, there is not yet an Actor that prints numbers or an interface created by this exercise. In the next section, you will add the first Actor.

Check your reasoning

See the explanation

No. An Actor instance must execute an operation and display its output.

Your turn: Find where you will create the Actor, widget and data without building them all yet.

Ready to continue when: you can open the practice level and find those folders.