Setting up the Game

Moving the Player

Moving the Camera

Setting up the Play Area

Creating Collectibles

Detecting Collisions with Collectibles

Displaying Score and Text

Building the Game

Adding AI Navigation

Welcome to 3D Beginner: Roll-a-Ball Game! In this learning project, you’ll:  

Use Unity Editor and its built-in capabilities to set up a simple game environment

Write your own custom scripts to create the game functionality

Create a basic user interface to improve the game experience

Build your game, so other people can play it!

3D Beginner: Roll-a-Ball Game

Scripts as Behaviour Components

Variables and Functions

Conventions and Syntax

IF Statements

Loops

Scope and Access Modifiers

Awake and Start

Update and FixedUpdate

Vector Maths

Enabling and Disabling Components

Activating GameObjects

Translate and Rotate

Look At

Linear Interpolation

Destroy

GetButton and GetKey

GetAxis

OnMouseDown

GetComponent

DeltaTime

DataTypes

Classes

Instantiate

Arrays

Invoke

Enumerations

Switch Statements

Start MonoBehaviour Methods

Detecting Mouse Clicks

Time

Learn about programming for game development, from the very beginning with these easy to follow video tutorials.

Beginner Scripting

Recorded Video Session: Text Adventure Game Part 1

Recorded Video Session: Text Adventure Game Part 2

Dive into scripting, in this course we will cover the fundamentals of C#. 

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Before you begin

Add a Rigidbody to the Player 

Install the Input System package

Add a Player Input component

Create a new script

Write the OnMove function declaration

Apply input data to the Player

Apply force to the Player

Fix the Player movement speed

Unity_RollABall_2-1.mp4

Unity_RollABall_2-8.mp4

Unity_RollABall_2-6.mp4

Unity_RollABall_2-3.mp4

Unity_RollABall_2-4.mp4

Unity_RollABall_2-2.mp4

Unity_RollABall_2-5.mp4

Unity_RollABall_2-7.mp4

 In the second Roll-a-ball tutorial, you’ll:

Add a Rigidbody to the Player sphere, so you can use the Unity physics engine

Write your own PlayerController script in C#, to make the sphere respond to player input

Add_a_Rigidbody_to_the_Player-Transcript.txt

Install_the_Input_System_package-Transcript.txt

Add_a_Player_Input_component-Transcript.txt

Create_a_new_script-Transcript.txt

Write_the_OnMove_function_Declaration-Transcript.txt

Add_input_data_to_the_Player-Transcript.txt

Apply_force_to_the_Player-Transcript.txt

Fix_the_Player_movement_speed-Transcript.txt

Unit 2 - Program a basic game

To use this tutorial, you will need a Unity project with a Scene containing the ball and the surface it rolls on. If you haven’t already created these, start with the tutorial Setting up the Game.

In the first video below, you will make the ball roll around on the game area surface.

Important: After you watch this video, please follow the steps below. Some actions are not shown in the video.

1.  In the Hierarchy, select the Player GameObject.

2.  In the Inspector, select Add Component. Then search for and select Player Input.

3.  In the Inspector, in the Player Input component you just created, select Create Actions. (This step is not visible in the video.)

4.  Create a new folder named Input, and name your asset InputActions, as shown in the video.

Important: The following steps are not shown in the video.

5.  In the Project window, locate this new InputActions asset in the folder you just created.

6.  Either drag the InputActions asset from the Project window to the Actions property of the Player Input component on the Player GameObject, or use the circle icon for the Actions property to select the InputActions asset.

When you are done, your Player Input component will look like the one shown near the end of the video at 1:48. 


Important: Before you continue, check that the class name matches your script file name. If these names don't match, a warning about the script being missing will display in the console and the script will not work.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;

public class PlayerController : MonoBehaviour
{
    public float speed = 0;

    private Rigidbody rb;

    private float movementX;
    private float movementY;

    // Start is called before the first frame update
    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    private void OnMove(InputValue movementValue)
    {
        Vector2 movementVector = movementValue.Get<Vector2>();

        movementX = movementVector.x;
        movementY = movementVector.y;
    }

    private void FixedUpdate()
    {
        Vector3 movement = new Vector3(movementX, 0.0f, movementY);

        rb.AddForce(movement * speed);
    }

}

Moving the Player

1. Before you begin

2. Add a Rigidbody to the Player

3. Install the Input System package

4. Add a Player Input component

5. Create a new script

6. Write the OnMove function declaration

7. Apply input data to the Player

8. Apply force to the Player

9. Fix the Player movement speed

Complete this tutorial