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ticalc.org is 20 years old!
Posted by the ticalc.org staff on 21 June 2016, 21:42 GMT

ticalc.org is 20 years old today! All of us involved with the site would like to thank all of you for creating and sharing and learning with us.

Several of us involved with the site over the years have shared their own reflections on ticalc.org below including (in alphabetical order):

Help us celebrate by sharing what ticalc.org has meant to you in the comments!

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Posted by Xavier on 19 June 2016, 20:51 GMT


Today, let's talk about a game recently made by Kevin "DJ Omnimaga" Ouellet, for TI-84 Plus CE / TI-83 Premium CE calculators. Its name is GalagACE, it's a fancy color Shoot-em-up remake of the B&W version (also by DJ) from... 2002 (!), then called "Space Invaders".

DJ has cleverly used one of the "hybrid BASIC" libraries available on the CE, this time an ASM sprites library by "grosged", which does the heavy lifting for the graphical operations happening in the game.
(We shall remind, like DJ did, that there are also some pretty awesome ASM shoot-em-up games for the CE, harnessing the full power of the device)

In addition to fancy sprite graphics, you'll be able to fight your way through 18 stages, 6 bosses, with your ship firing up to 3 bullets at once on the screen. The game is clearly playable, and makes for a rather cool showcase for hybrid BASIC ;)

A detailed readme file is available, and explains controls, gameplay, and more. DJ has also uploaded a video of the gameplay on YouTube if you want to see for yourself before playing.

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Two fun agility games for your CE
Posted by Xavier on 4 June 2016, 15:25 GMT


This news item is about a pair of games for the TI-84 Plus CE / TI-83 Premium CE, programmed in C by "Unicorn". They are in fact both remakes from original smartphone games. The improved TI-eZ80 hardware, with a faster CPU and more RAM than the TI-z80 series, makes such endeavours easier; the higher-resolution, color screen helps provide a user experience closer to the original games.

First, in SwipeCE, you need to press the arrow keys corresponding to the one displayed on the screen... but with a twist : if the arrow is dotted, press the arrow key for the opposite direction - watch out, you only have a short amount of time for that!


Then, in StackerCE, with a recent update using all kinds of neat colors (which you can adjust), you need to stack moving blocks on top of each other... and of course it's getting faster every time ;)

For both, a longer delay between key detection might have been useful, since the games will repeat the key if you do a "long" press - but hey, that could be seen as an additional challenge ;)
Have fun :D


Minesweeping on the TI-84 Plus CE
Posted by Xavier on 15 May 2016, 23:17 GMT

Minesweeper CEToday's feature is about Minesweeper CE by Shaun "Merth" McFall, a game for the TI-84 Plus CE and TI-83 Premium CE. Like a number of games for those platforms, it is written in C and leverages the common community libraries.

In this quite accurate adaptation of the famous computer puzzle older than a number of us, you may choose between 3 difficulty levels:

  • beginner : grid of 8x8=64 tiles with 10 mines (15.6%)
  • intermediate : grid of 11x11=121 tiles with 20 mines (16.5%)
  • expert : grid of 16x11=176 tiles with 36 mines (20.5%)

Fortunately, the alpha key will let you flag tiles that you think contain a mine, thus preventing you from activating them by mistake. Of course, should you activate an actual mine, you'll lose the game - but it's not always avoidable :P
Note that there's no time limit or highscore system yet.

Minesweeper CE is open-source, so feel free to check it out and learn from it on Bitbucket.


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New files for Thursday, 30 June 2016
Time Action File Location
TI-83 Plus/TI-84 Plus
11:10Added Modified Bessel FunctionsTI-83/84 Plus BASIC Math Programs (Misc.)
TI-84 Plus CSE Assembly/Flash/OS
11:09Updated Calcuzap 984 (color) for TI-84 Plus C Silver EditionTI-84 Plus C Silver Edition Flash Games
TI-84 Plus CE Assembly/Flash/OS
11:09Updated Calcuzap 1014 (color) for TI-84 Plus CE / TI-83 Premium CETI-84 Plus CE Assembly Games
11:10Added TemperTI-Nspire Assembly Games
11:10Added SMS_PlusTI-Nspire Assembly Games
11:10Added Hilbert CurveTI-Nspire Lua Math Programs
11:09Updated VecxTI-Nspire Assembly Games
11:09Updated Super Methane BrothersTI-Nspire Assembly Games
11:09Updated PokeMiniTI-Nspire Assembly Games
11:09Updated Gameblabla's OswanTI-Nspire Assembly Games
11:08Updated PocketSNESTI-Nspire Assembly Games

New files for Monday, 27 June 2016
Time Action File Location
TI-83 Plus/TI-84 Plus
08:10Added Bessel FunctionsTI-83/84 Plus BASIC Math Programs (Misc.)
08:10Added Fizz BuzzTI-89 BASIC Games (Puzzle/Number)

New files for Friday, 24 June 2016
Time Action File Location
05:36Added WheelsTI-Nspire Lua Math Programs
05:36Updated Conversion UTM to D / A / CH-Coordinates v2.02TI-Nspire BASIC Science Programs

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