Beginner C++ Game Programming Tutorial 13

In this lesson we learn about the bomb-ass data structure known as the array, the granddaddy of them all. We also learn about boring shit like the automatically-generated default constructor (BOOOOORIIIIING! NEEEEEERRRD!).

Concepts Taught

• Arrays
• Default Constructor
• Using asserts

Video Timestamp Index

• Intro 0:00
• Mean average code example: local variables analysis in debugger 0:54
• Arrays visualization in memory, arrays anatomy 2:37
• Declaring an array in C++ 5:19
• Array size must be known at compile time 7:20
• What's so good about arrays: Using arrays in loops 8:23
• Array size limit 11:22
• Refactoring Poo Game: Using arrays 13:20
• Useful logic pattern for determining if all elements "return true" 15:25
• Constructing array of objects: default constructor 18:30
• Note: There are special member functions in C++ 19:54
• Initializing poos 21:39
• Disadvantage of initializing poos this way (Init() funciton): breaks encapsulation 23:53
• Making it a little better: 25:07
• Another, bigger disadvantage of initializing poos using Init() funciton: Init() is separate from object construction, and thus could be easily desynchronized. 28:18
• Solving above issue 29:07
• Safety checks: Is it worth it? 30:28
• In the future we will learn about vectors, a better solution for above problems 31:05
• Homework 31:41

Homework

1. Make it so that touching the poo is game over and the goal is to reach a square.
2. Make the square's color pulsate and make a meter that keeps track of how many times the goal was reached.

The solution is given in this video.

Downloads

• The starting code for Tutorial 13 is here.
• Tutorial 13 Code (WORK IN PROGRESS)
• Tutorial 13 Homework Solution Code (WORK IN PROGRESS)

See also

• Planet Chili Patreon
• Next in series (Tutorial 14)
• Beginner C++ Game Programming Series