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bootRogue, a roguelike game that fits in a boot sector (510 bytes)
- Assembly 99.7%
- Other 0.3%
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_ _ ______ | | | | | ___ \ | |__ ___ ___ | |_| |_/ /___ __ _ _ _ ___ | '_ \ / _ \ / _ \| __| // _ \ / _` | | | |/ _ \ | |_) | (_) | (_) | |_| |\ \ (_) | (_| | |_| | __/ |_.__/ \___/ \___/ \__\_| \_\___/ \__, |\__,_|\___| \ A_________ __/ | / \ )==o_________> |___/ / \__________V__________________________________/ bootRogue, a roguelike game that fits in a boot sector (510 bytes) by Oscar Toledo G. Sep/26/2019 http://nanochess.org https://github.com/nanochess/bootRogue It's compatible with 8088 (the original IBM PC) If you want to assemble it, you must download the Netwide Assembler (nasm) from www.nasm.us Use this command line: nasm -f bin rogue.asm -l rogue.lst -o rogue.img nasm -f bin rogue.asm -Dcom_file=1 -o rogue.com Youtube video: https://www.youtube.com/watch?v=DMMr4z6kU5g Play it on your browser: (v86 at parkertomatoes.github.io) https://tinyurl.com/y4447ph8 >> HOW TO PLAY << Move with the arrow keys to reveal the area where you are. Any action is done by touching the target. Any letter is a monster, the Aardvark monster is the most easiest of the game, while the Zombie master monster is the most difficult one. Touching them will cause a battle to start, press any key to keep advancing the battle and see how your HP goes down. The diamonds are traps that will suck your HP. The clover symbol is food. The square with a hole in the center is armor, getting more of these means the monsters will have a hard time hitting you. The up arrow is weapon, getting more of these means the monsters will receive harder hits. The asterisk like symbol is gold, but doesn't affect the gameplay nor is counted (because lack of space), but I wanted to have gold in the game ;) Finally the Amulet of Yendor is represented by a Female sign, and it will appear only in level 26 or deeper. Once you get the amulet, the ladders will start taking you to upper levels. The game will get stuck once you lose all your HP or take the last ladder to surface. Enjoy it! >> AND THERE WAS ROGUE << I was a young kid when I learned to put floppy disks inside an old Televideo machine with green monochrome monitor, turning the handle to close the door, and turning it again to open it and insert another disk. I learned by watching that you could type DIR, and then enter the name of anything that appeared at the left side. Didn't passed too much time until I saw I could execute only the files with COM or EXE letters at the right side. I played Digger, Jumpjoe, Columbia Invaders, Buzzard Bait, J-Bird, Bushido, some Pacman-like games, and then I found a game starting with a full text screen and then a tiny face over a dotted background. It was called ROGUE.EXE. You could move over the rooms and find things, like a ring, armor, weapons, and monsters! Barely I could understand English but it got me immediately because there were always things around the corner, and more levels! I went lazy and tried to go so deep as possible, finding the ladders without fighting. Big mistake! A dragon appeared and roared fire with ASCII letters, killing me immediately. I was hooked! Patience was the key, slowly started to gather experience killing the small monsters, discovered how to get better weapons and armor, avoided the rings (You could never know the strange things these could do! Except of course when I found the Identify scroll). Went to level 26 and retrieved the amulet of Yendor, then started to go back to surface, fighting for my life, avoiding monsters, and finally I was out! I was ecstatic, and I was age 11. It was one of these epic fables that you do only one time in the life, since then I only played some minutes a few games of Rogue for the nostalgia, but didn't had time again to go to level 26. >> 30 YEARS LATER... << But still I had the game in my mind, and decided that I could write a smaller version for a boot sector, just as a challenge. I had "clear" specifications, it had to have the ASCII graphics and gold (this made it a very difficult task). Statistics of source code files over development. lines bytes (com file) rogue0.asm 252 351 Sep/20/2019 07:18pm rogue1.asm 358 467 Sep/21/2019 10:00pm rogue2.asm 548 829 Sep/22/2019 05:54pm rogue3.asm 502 759 Sep/23/2019 05:22pm rogue4.asm 468 670 Sep/23/2019 07:03pm rogue5.asm 460 652 Sep/23/2019 09:43pm rogue6.asm 460 643 Sep/23/2019 10:16pm rogue7.asm 457 630 Sep/24/2019 07:08pm rogue8.asm 435 602 Sep/24/2019 07:48pm rogue9.asm 436 596 Sep/24/2019 09:44pm rogue10.asm 441 576 Sep/25/2019 01:35pm rogue11.asm 480 553 Sep/25/2019 10:24pm rogue12.asm 472 510 Sep/26/2019 12:24pm I went into a coding spree and I had coded the whole game in 3 days. But of course it was too big (rogue2.asm). Then I had to optimize carefully the code and remove the features that wouldn't fit even with all my effort, so there went the roguelike monsters names (the easiest monster is A for Aardvark, till the more difficult Z for Zombie Master, feel free to invent more names). At same time preserved the ASCII graphics for rooms and items, but couldn't put inside scrolls or potions. In the last iteration I removed the exp(erience) code because it really didn't affect the gameplay and managed to get under 510 bytes. I've put all the revisions inside the backup directory so you can watch the process of optimization. I preferred to optimize rather than remove features if possible. And no, it isn't too easy to go to level 26 and get the Amulet of Yendor. >> ATTENTION << Would you like to learn 8086/8088 programming? Then you must get my new book Programming Boot Sector Games including a 8086/8088/V20 crash course! Now available from Lulu: Soft-cover http://www.lulu.com/shop/oscar-toledo-gutierrez/programming-boot-sector-games/paperback/product-24188564.html Hard-cover http://www.lulu.com/shop/oscar-toledo-gutierrez/programming-boot-sector-games/hardcover/product-24188530.html eBook https://nanochess.org/store.html These are some of the example programs documented profusely in the book: * Guess the number. * Tic-Tac-Toe game. * Text graphics. * Mandelbrot set. * F-Bird game. * Invaders game. * Pillman game. * Toledo Atomchess. * bootBASIC language.