Unity

Setup

Ubuntu

How to Install a specific archived version of the Unity Editor on Ubuntu 20.04:

1. Go to archives and copy link from Unity Hub install green button
2. Go to CLI and CD to folder where Unity Hub binary is located, then paste the link after a call to execute Unity Hub binary:

$DIR/UnityHub.AppImage unityhub://2018.3.0f2/6e9a27477296

Unity Hub should start downloading the specified verison of the editor

 

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(Unit) Testing

1. Add Test Runner tab via General --> Test Runner

2. Add test .cs scripts to Test subfolder

and be mindful of static editor tests vs tests while running the game

 

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UI Basics

• reset view via Window --> Layouts --> Default
• • click object in Hierarchy to highlight it and press f to focus on it in the window
• press alt + left-mouse to rotate around the object
• q, w, e, r, t to choose between tools at top-left (hand, move, rotate, scale and rect)

Framerate Independence

Simple Example of Framerate Independence

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

public class Mover : MonoBehaviour
{
    [SerializeField] float moveSpeed = 4.8f;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        float xValue = Input.GetAxis("Horizontal") * Time.deltaTime * moveSpeed;
        float zValue = Input.GetAxis("Vertical") * Time.deltaTime * moveSpeed;

        transform.Translate(xValue,0,zValue);
    }
}

Cinemachine Camera Controller

https://docs.unity3d.com/Packages/[email protected]/manual/index.html

Follow Camera Setup

install via Window --> Package Manager --> Packages: In Project --> Packages: Unity Registry (change drop-down) --> search 'Cinemachine' and press Install

• creates new 'Cinemachine' Menu item

click on 'Main Camera' --> on right, click 'Add component' --> search 'Cinemachine' to see all components that can be added to Main Camera --> click 'CinemachineBrain' and add it

• Then, click on 'Cinemachine' at top menu and 'Create Virtual Camera'

• rename to 'Virtual Follow Camera'

• click the new camera, change Body type to 'Framing Transposer'

• 'Look at' will behave like a security camera, staying in place but pointing at object

• 'Follow' will follow object around like a perspective

Collisions

1. ensure enabled box collider
2. add rigidbody component to object (lower-right)