I think going back through the book sounds good - it sounds like you didn't really make any games back then, so you're still in the learning phase.

There's an excellent book (in my opinion) that I've recommended to many aspiring games programmers called "Beginning C++ Through Games Programming". I believe it's up to the fourth edition now (I learnt from the second). I advise you give it a look if nothing else :)

As for making games... Start with something simple like Asteroids as you can learn basic vector math and level management. Then progress onto a 2D platformer (think of Mario, maybe add some basic AI). You can go from there to whatever you like after that.

Good luck!

Thanks for the answers, butI think I asked the question in a bit a wrong way, because it seems like the answers

are not for my question.

I'm not looking for a way to get into programming/game programming, but I'm looking for

ways to re-get into programming and to refresh the programming concepts, I've learned, because

I didn't program for a long time and forgot a lot.

Thanks.

It seems that going through the book again, as Dezachu mentioned, would be very beneficial for you if you were previously making progress that way. Could you be a little more specific about what you're looking for? I stopped programming in C++ for a while, then returned to it, and I found that using the language to make various little applications (rock-paper-scissors, caesar cipher, surveys, guessing games) was the best way to refresh my knowledge.

So my suggestion is to try making things. They don't have to be games. Just write little applications using what you already know. When you come to a point where you want to do something but forgot how (ex. storing a number inside a variable), then you can always reference that chapter in your book.

I'm sorry, but I'm not exactly sure how to answer your question. I thought I'd give it go. Getting into programming again can be the same as learning how to program from the start, especially if you haven't looked at code in a long time! Please don't be afraid to start over from the beginning, watch tutorials on YouTube, or read through your book from the first chapter again. Even if you're thinking, "I already know how to do this" in the beginning of those tutorials, you'll eventually come across something you haven't seen before (because you mentioned that you haven't finished that book). Perhaps Bucky's tutorial series would be a good reference for you. I recommend checking out his playlist of C++ tutorials.

Pick a project (anything simple enough, such as tic-tac-toe or even math quiz) and do not worry so much about forgetting stuff (but make sure to use a good IDE and compiler). I forget stuff all the time, even though I program every day. When I do, my tools are there to remind me.

I think the best way to get into anything is to pick something that "forces" you to use it a lot :)

So, considering this is a game development community, pick a game engine/framework that is written in C++ and go nuts.

It doesn't matter what kind of project you choose - pong or a simple RPG - as long as it manages to make you program in C++.

Restarting with the book is no option for me, as I said. It will decourage me and eventually I will stop.
I like the idea of making programs I think. I started to do that, but I don't really know anymore what to make
(I just have no inspiration at the time). Could you maybe do some extra suggestions?

Ah, sorry I missed that in your original post! I could suggest the MakingGamesWithBen channel on YouTube, if that's something you want to do.

Here are two ideas to get you started...

#1 Guess the Number

>>> The program generates a random number and asks the player to guess it within so many turns.

// Example output

Hi, I'm Rob! I'm thinking of a number between 1 and 10. Can you guess it in 3 turns?

PLAYER: 1

Nope! That's too small! Try again.

PLAYER: 7

Nope! That's too big! Try again.

PLAYER: 3

That's it! I was thinking of the number 3! You guessed my number in 3 turns!

#2 Text-Based RPG

>>> The player has stats and items. He or she may increase them by doing various actions.

// Example output
+-------------------------------------------------------+
| CLASS: FIGHTER | HP: 84 | ATK: 40 | DEF: 32 | EXP: 25 |
+-------------------------------------------------------+

What will you do?

1 - Enter a dungeon
2 - Purchase items from a shop
3 - Take a quest

PLAYER: 2

Merchant: Welcome young adventurer! What will you buy today?

+----------------------------------------------------+-----------------+
|                       SHOP                         | Your Gold: 2585 |
+----------------------------------------------------+-----------------+
| 1 - Mythril Sword ---------------------- 1500 Gold |
| 2 - Adamantine Saber ------------------- 2450 Gold +-----------------+
| 3 - Claymore --------------------------- 3600 Gold | 4 - Exit Shop   |
+----------------------------------------------------+-----------------+

PLAYER: 1

Merchant: You already own [1] MYTHRIL SWORD.

PLAYER: 3

Merchant: You cannot afford that!

PLAYER: 2

YOU OBTAINED THE [ADAMANTINE SABER]!
YOU NOW HAVE [135 Gold]!

PLAYER: 4

Merchant: Come again soon!

+-------------------------------------------------------+
| CLASS: FIGHTER | HP: 84 | ATK: 40 | DEF: 32 | EXP: 25 |
+-------------------------------------------------------+

What will you do?

1 - Enter a dungeon
2 - Purchase items from a shop
3 - Take a quest

PLAYER: 1

You are inside a dungeon...

MONSTER ENCOUNTER!

 +------------+ +--------------+ +--------------+
 | 1 - Attack | | 2 - Use Item | | 3 - Run Away |
 +------------+ +--------------+ +--------------+

PLAYER: 1

You attack for 43 damage!

You have defeated the monster!

GAINED 56 EXP!

/// and so on

Starting with text-based apps is really helpful. You could also make quizzes, hangman, shop sims, chatbots, choose your own adventure games...anything, really.