Game Development Tools: Unity and Unreal Engine

Learning Objectives Describe the purpose of a game engine's main loop. Explain the relationship between a Game Object and a Component. Define what a 'scene' or 'level' is in a game engine. Outline the basic steps for making a character perform an action using code. Compare how Unity and Unreal Engine handle scripting at a high level. Identify the role of physics and collision detection in a game engine. Ever wonder how a game like Fortnite or Among Us knows exactly when you press a button to jump or run? 🎮 Let's peek inside the 'brain' of a game! In this lesson, we'll explore the hidden architecture of powerful game development tools like Unity and Unreal Engine. You'll learn how these engines are structured to bring games...

TermDefinitionExample Game EngineA special software toolbox that gives developers all the basic tools they need to build a game, like rendering graphics, playing sounds, and handling physics.Unity and Unreal Engine are two of the most popular game engines. Think of them as a giant workshop with every tool you need to build a car, but for games. Game LoopThe main cycle that a game runs over and over again, hundreds of times per second. It checks for player input, updates the game's state, and draws everything on the screen.When you hold down the 'forward' button, the game loop checks for that key press in every cycle, updates your character's position, and redraws them in the new spot. Game Object (or Actor)Any individual 'thing' that exists in your game world...

The Update Loop Pattern void Update() { // Code inside here runs every single frame. } This is a special function in a script that the game engine calls automatically on every cycle of the game loop. Use it for things that need to be checked constantly, like player input or character movement. The Component-Based Design Pattern Game Object + Components = Complete Thing Instead of writing one giant program for a character, you build them out of smaller, reusable parts (components). A character is a Game Object that has a model component, a physics component, and a control script component. The Event-Driven Pattern void OnCollisionEnter() { // Code here runs ONLY when a collision happens. } Instead of constantly checking if two things are touching, the engine can tell...