4. Scripting in Game Engines: C# in Unity and Blueprint in Unreal Engine

Learning Objectives Define a function with parameters and explain its purpose. Create a simple script in C# (Unity) that uses a variable to track a score. Construct a basic Blueprint graph (Unreal Engine) that responds to a player event. Explain the concept of an array for storing multiple pieces of data. Compare and contrast text-based scripting (C#) with visual scripting (Blueprint). Describe a simple 'game state', such as a door being locked or unlocked. Debug a simple script by checking variable values and logical flow. Have you ever wondered how a game knows to give you a SUPER jump instead of a regular jump when you hit a special bounce pad? 🤔 Let's learn the secret code behind it! Today, we're diving deeper into game scripting! We'll learn...

TermDefinitionExample Function with ParametersA function is a named block of code that does a specific job. A parameter is extra information you give to the function to change how it does its job.A `Jump(height)` function. The `height` is a parameter. Calling `Jump(10)` makes you jump higher than calling `Jump(5)`. ArrayAn array is like a container or a list that can hold multiple values of the same type. Each item in the array has a numbered position, called an index, starting from 0.An array called `inventory` could hold all the items a player has picked up: `["sword", "shield", "potion"]`. `inventory[0]` would be "sword". Game StateThe 'state' of an object is its current condition. We use variables and conditionals to check and change a...

Defining a Function with Parameters C#: `void FunctionName(type parameterName) { // code here }` Blueprint: Create a new Function, go to its Details panel, and add an 'Input' with a name and type. Use this when you have a reusable action (like dealing damage or changing color) that needs to be slightly different each time you call it. The parameter is the information that makes it different. Accessing Array Elements Use the array's name followed by the index number in square brackets: `arrayName[index]`. Remember that computers start counting from 0! To get the first item in an array, you use `arrayName[0]`. To get the third item, you use `arrayName[2]`.