This is a text-only version of the following page on https://raymii.org: --- Title : CookieNumberPrinter, incremental / idle game style numbers in C++ Author : Remy van Elst Date : 12-09-2020 URL : https://raymii.org/s/software/CookieNumberPrinter_incremental_game_style_numbers.html Format : Markdown/HTML --- To level up my software development skills, I'm programming a command line game in my spare time. It is a clone of the famous cookieclicker game [by ortiel][1]. A clone of a game is simple enough to get up and running fairly quickly, but also extensible enough when needed. How do you store huge score numbers when they don't fit in a `long long`? How do you write a game loop, how to use threads to handle user input? Saving a game (how to design a proper save format)? Also a great way to learn about project organization, software architecture and to try out design patterns. As the game is a clone of CookieCliker, which itself is an [incremental game][2], I had to figure out how to work with large numbers. Since this is not a university math project, I allowed myself the luxury of using [Boosts Multiprecision][3]. The library handles the large numbers, including caluclation and operations with such a number. I did want to print the numbers in Idle Style, where large numbers are displayed with a suffix, like `1 million` instead of `1000000` and so on. This `C++` class can be used to print Boost's `cpp_dec_float` numbers in incremental style. It's just one header. You can [get the code here][6]. [If you like this class, consider sponsoring me by trying out a Digital Ocean VPS. With this link you'll get $100 credit for 60 days). (referral link)][99] Please do keep in mind that this is a hobby project, the code might not be up to your professional standards. As of now the class in my game has diverged a bit to also support a few other boost numbers and can directly be used as an output stream (`std::cout << cookienumber` instead of `std::cout << cookienumber.print()`). ### Idle Style numbers? If you're wondering what Idle / Incremental game style is, let me show you. A lot of mobile games show numbers in idle style, here is a picture of one: ![idle miner][5] Here is a screenshot of my game, where you can see I have `5p` cookies as well as prices for certain items with suffixes: ![c_ookieclicker][4] Even though one is a flashy Android game and one is a humble command line application, you see the idle style printing. In the future I might show more of the game, or even make the git repository public. For now it's just me and a few friends. ### Download and building and an example I assume you have a working C++ compiler setup and have compiled before. Install boost: apt install libboost-all-dev Clone the git repository git clone https://github.com/RaymiiOrg/cookienumberprinter Go in the folder and cmake / make cd cookienumberprinter mkdir build cd build cmake .. make Run the example: ./cookienumberprinter Output should be: CookieNumberPrinter by https://raymii.org, examples. Should print: 0 1 1.1 100.3 1234 123 thousand 1 million 8 million 12 billion 3 quintillion 897a 11yyy Here we go! 0 1 1.1 100.3 1234 123 thousand 1 million 8 million 12 billion 3 quintillion 897a 11yyy Process finished with exit code 0 [1]: https://orteil.dashnet.org/cookieclicker/ [2]: https://en.wikipedia.org/wiki/Incremental_game [3]: https://www.boost.org/doc/libs/1_74_0/libs/multiprecision/doc/html/boost_multiprecision/intro.html [4]: /s/inc/img/105_main.png [5]: /s/inc/img/idleminer.png [6]: https://github.com/RaymiiOrg/cookienumberprinter --- License: All the text on this website is free as in freedom unless stated otherwise. 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