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Welcome to Cemetech! Since 1999, Cemetech (pronounced KE'me'tek) has been developing software and hardware in many technology-related fields. Among Cemetech's specialties are TI graphing calculators such as the TI-83+/SE and TI-84+/SE, the Casio Prizm graphing calculator, web programming, and DIY hardware projects and modifications.

Our members, enthusiasts, experts, and teachers are led by Kerm Martian, né Christopher Mitchell. Since 2004 he held the title of the world's most prolific graphing calculator programmer, with over 400 completed programs and more than 1.2 million direct downloads. He has also developed many software and hardware projects. Our staff of friendly volunteers hang out on our forum and IRC and SAX chatrooms, and are happy to answer questions.

Numbers: 691 articles have been posted in Cemetech's News Archives. View current site statistics. Within the last seven days, 3 files have been added to the file archives. Click to show the new files.

Latest Forum Posts
SourceCoder 3 Nears Completion by KermMartian
[HOWTO] Prizm C Development by amazonka
Dark Hallways: A Text-Based Adventure by Michael2_3B
NikkySim Joins IRC by Iambian

Cemetech Labs Updates
Take Pictures with a TI-84+CSE and a Gameboy Camera on 11/14/2014
WiFi globalCALCnet with the Spark Core on 10/5/2014
Developing WiFi Calculator Communication with the Spark Core on 9/27/2014
PartyMode 2.0: The One-Room Instant Disco on 6/22/2014

Highlights
SourceCoder 3 TI-BASIC Editor/IDE  jsTIfied online TI-83+/TI-84+ emulator  Cemetech Forum  Cemetech Projects  TI-83+/84+ Programs and Games  Casio Prizm Programs and Games  Using the TI-83 Plus/TI-84 Plus  Programming the TI-83 Plus/84 Plus  Doors CS 7  United-TI Fora  WikiPrizm 
Projects of the Month: February 2015
Published by tifreak8x on March 2, 2015 at 10:36:53 PM CST | Discuss this article (1)

Hello and welcome to another month's worth of fantastic projects! We're running a couple of days late due to distractions and waiting on some clarification on certain projects. There have been some new, awesome projects started, along with some important updates to already existing projects that are out in the wilds. I think you'll agree that this month's list is amazing and very exciting!
  • CBLConsole: CVSoft has done a bit of work on his CBL programs, and now has a PC side setup to use a grey link to access CBL data directly without the need for a calculator at all! Take a look at the topic for shots of console and for more information!
  • Lua z80: AHelper is working on creating a Lua VM for the z80 line of calculators, an especially topical project given Cemetech interest in educational activities for the TI-84 Plus series and TI Education's use of Lua on the TI-Nspire, we're hoping to help bring Lua to the TI-84 Plus CE and the rest of the TI-84 Plus series.
  • Cookie Clicker Axe: JWinslow has finally released his Axe Cookie Clicker game for the monochrome TI-83 Plus and TI-84 Plus calculators with a few new features. Check out the post to get at the latest file version!
  • Alien Breed V Ep II:: JamesV has released the list of updates for his project, which is quite extensive, with a link to version 2.0.0 file. Go check it out and start loving this soon-to-be classic!
  • xLIBC: tr1p1ea has made some updates to xLIBC addressing an issue with the fixed transparency. We expect that tr1p1ea's fix will be in Doors CSE 8.2 if and when it is released, as well as presumably in Doors CSE for the TI-84 Plus CE. In addition, if you have feedback or ideas for the TI-84 Plus CE version of Doors CSE 8, Kerm and tr1p1ea ask that you post in its thread.
  • Five Nights at Freddy's: So, when one would see a name pop up for a calculator port on a game like this, one would expect more of a text based game. But no. Ooooooh no. Haobo decided that this needed more than text on a screen. The screenshots show extremely beautiful graphics on the monochrome calculator that is simply too stunning for words. Go check out the project and give all the encouragement. They definitely deserve it.
  • Slender: The Eight Pages: An assembly project by Acagliano to clone Slender: The Eight pages over to the monochrome TI-84 Plus calculators. He's created a project page (linked to in the topic) and is showing off a few impressive looking sprites. If you are a fan of the games, you should poke over onto his topic and give some love where it is due! We must also recognize the several community members who have been contributing routines to his project.
  • QEmu Prizm Emulator: While Casio offers their own fx-CG10/20 (Prizm) emulator, it is not free, and in many cases does not run community add-ins properly. To help Prizm programmers and users, AHelper has taken on the task of bringing the community a usable emulator for the Prizm calculators. He is calling upon anyone with information about the Prizm, or those that might want to help code, to bounce into the topic and lend a hand.
  • Emu8x CSE: Hooloovoo has taken up to porting emu8x for the 84+, which emulates the 81 through 86 on the 84+, and is now putting it on the TI-84 Plus C Silver Edition. As we previously reported, his largest obstacles have been in getting the LCD emulation to be fast enough.
  • Zargul CSE: JamesV is playing around with new territory on the CSE, bringing us a pseudo 3D engine to the CSE calcs. So far with what he's shown, this looks pretty impressive, and he has a list of things he'd like to get added in. Go check out the screenshots in his thread to have your mind blown!
  • Move3: M. I. Wright has brought an interesting BASIC platformer game to the CSE, with moving platforms and the like. Take a look, encourage him, and let him know what you think about his project.
  • The World's Hardest Game: MateoConLechuga has been dropping hints that there may be a color version in the works. He obviously needs more encouragement, so go give him a poke in the topic!
  • Transparent Cursor Routine: One of the many little gems of a project that MateoConLechuga has been working on for the CSE. The cursor is fairly fast and smooth, and has support for clickable spots on the screen. Although community feedback made Mateo decide to leave it out of mobileTunes 3 CSE in favor of a simpler interface, it's still an impressive display of assembly prowess that we hope will find a home in some future project.
  • MobileTunes 3 CSE: Yep, you read that right! MateoConLechuga and Kerm "Christopher" Martian have been working on porting the mobileTunes 3 music player to the TI-84 Plus C Silver Edition, and so far things are looking absolutely fantastic. It has a nice UI, easy to use controls, and looks all-around amazing!
  • Mono2Color: Most likely to be heralded a hero by the community, MateoConLechuga wows and amazes again with this project: making assembly programs for the monochrome calculators like the TI-83 Plus and the TI-84 Plus run on the TI-84 Plus C Silver Edition. He played around with Mario, making it work fairly well in various modes. More information is available in the topic, so go check it out or read the news article we published earlier this month.
  • Portal CSE: Mateo has been working out a lot of bugs with his game and level editor. Things seem to be shoring up quite nicely for this project, so if you are running an older version, or you've never played this game, go give it a check out and update that problem!
  • Science Friction: KermMartian has finished the last of the STEM behind Hollywood projects that was originally for the Nspire, and made them all available for the CSE. In this, you have to help the villain stop the hero from saving a bridge. Definitely one to check out if you are an educator wanting to use your calculators to increase the student's learning environment

And on a side note, we've finally finished the Cemetech Fliers for you to post up in local libraries and in your school (with permission) to help the Cemetech Empire expand, I mean, help bring the joy of programming to more people! Yes, totally what I meant to say! Keep up the awesome work, all you awesome programmers. We're looking forward to what you may be working on next!

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STEM Behind Hollywood for TI-84 Plus C SE: The Full Set
Published by KermMartian on March 1, 2015 at 9:55:43 PM CST | Discuss this article (3)

Since October, I have been working on porting TI Education's STEM Behind Hollywood activities for the TI-Nspire to the TI-84 Plus C Silver Edition. At last, all five activities have been ported, concluding with Science Friction! at the beginning of February. Using the Hybrid BASIC functions in Doors CSE 8, these five exciting activities bring the pedagogical lessons and interactive simulations of the TI-Nspire to the trusty TI-84 Plus C Silver Edition and hopefully soon the TI-84 Plus CE graphing calculators.

To celebrate this milestone, I've put together a video introducing the STEM Behind Hollywood activities for the TI-84 Plus C Silver Edition. It describes the overall goal of the activities, to make STEM education fun and to use the TI-84 Plus C Silver Edition as a versatile STEM education tool. In addition, it introduces each of the five current activities in the STEM Behind Hollywood series:
  • Zombie Apocalypse Part 1: Students will learn about virulence, the spread of disease, and the structure and function of the brain while investigating a zombie apocalypse.
  • Zombie Apocalypse Part 2: Students learn about virology, prions, titrations, acids and bases, and pH while trying to cure victims of a virulent "zombie virus". This activity follows a team of scientists battling the zombie outbreak from Zombie Apocalypse Part 1 as they try to understand the nature of the infection and design a cure.
  • Earth Impact!: In Earth Impact!, students learn about gravitational force while they work to keep an asteroid from striking the Earth. An interactive simulation lets students explore the effects of mass, velocity, and angle on an asteroid's path as they discover Newton's law of universal gravitation.
  • Body of Evidence: A decomposing body is found in a field, and your students need to play the role of a forensic anthropologist identifying the victim. Students will learn about forensic techniques, the stages of decomposition, and the STEM jobs involved in identifying bodies as they help solve this case.
  • Science Friction!: Students will learn about static and kinetic friction and Newton's second and third laws of motion in this superhero-centric activity. They play the role of the henchperson to a villainous civil engineer trying to sabotage a new bridge. They must spray a concrete roadway with oil, water, or ice to stop the hero from saving the bridge, using their knowledge of friction to figure out the best substance to use.

We're excited to hear from teachers who use these activities along with their included student and teacher handouts in the classroom. We also hope that our skilled programmers and affiliates will help us design some original STEM Behind Hollywood activities to add to our series.

Download:
Zombie Apocalypse Part 1 for the TI-84 Plus C Silver Edition
Zombie Apocalypse Part 2 for the TI-84 Plus C Silver Edition
Earth Impact! for the TI-84 Plus C Silver Edition
Body of Evidence for the TI-84 Plus C Silver Edition
Science Friction for the TI-84 Plus C Silver Edition





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TI Connect CE: In-Depth Review
Published by pimathbrainiac on February 25, 2015 at 12:21:05 PM CST | Discuss this article (17)

A few days ago, TI Connect CE 5.0 was released by TI as a compliment to the TI 84 Plus CE. We first heard about TI Connect CE during our exclusive interview with Dr. Peter Balyta about the new color calculator, but this has been our first opportunity to go hands-on with the software. Since it has new features, including a program editor, Cemetechian pimathbraniac has helpfully decided to do a full review. Sadly, this software only works with z80 USB-port models, but you can have TI-Connect 4.0 installed alongside it, so you are only really missing out on the new features.

Downloads and information
TI Education's TI-Connect CE information page
Download TI-Connect CE for Windows
Download TI-Connect CE for Mac OS X

First up: Start Up
Immediately after the splash screen splashes, you are greeted with the basic interface in screen capture mode. There are three modes, easily accessible from the sidebar, including Screen Capture, Calculator Explorer, and Program Editor. To the immediate right is the connected calculator list if you are in Screen Capture or Calculator Explorer mode, and the tokens list if you are in Program Editor mode. When it is the connected calculator list, you can switch between connected calculators quickly. Just click the one you want to switch to, and you're ready to go!

Screen Capture
The Screen Capture mode is just an interface change on the one from TI-Connect 4.0. You can only take screenshots from the confines of the TI-OS level. This means you can't take screenshots from flashapps or assembly programs. Kind of a bummer, but nothing new. The interface does feel sleeker and more modern, but I feel TI could have updated the feature for this software.

Calculator Explorer and File Transfer
Since this is connectivity software, this is the most important part of this package. How is the connectivity? In a word: fast. It takes very little time from drag-and-drop of programs to menu, and the actual transfer takes full advantage of the USB capability. You also have the option to send files to all connected calculators, which is very nice, especially if you are working on a multi-player game and want to improve the time it takes to get the files to both calculators. In the Calculator Explorer itself, you see everything on the calculator in the sleek interface, and can switch between calculators easily. You can also double click a non-protected, non-assembly program to edit it within the Program Editor almost instantly, which leads nicely into the next section.

Program Editor
TI has not released a program editor with their standard link software since TI Graph Link. This program editor is a nice addition to the software, once again with a sleek and modern interface. It features a tokens list and reference on the side, and can send the program to a connected calculator with the click of a button. The editor feels a lot like TokenIDE or SourceCoder, but with different syntax for store arrows and superscripts and such. The copy-paste issues from Graph Link have been fixed, though, so the store arrows (→) and the like show up properly when pasted into posts. There are line numbers for each line, like an IDE, but the similarities to full-featured IDEs stop there. The only language supported, syntax-highlighting wise, is TI-Basic, as is expected, since this is TI's product and not the community's. That said, if you are familiar with the tokens Axe replaces or don't care about the reference for hybrid basic, you can still use the editor for those languages. The reference only gives syntax, not a description, which is also a bit of a bummer. Unlike SourceCoder, there is no tab-completion or completion suggestions. There also are no colons to start each line, but those are done correctly when writing the actual file.

Overall, this is a nice update to TI-Connect, and you will enjoy the new file transfer speed and the TI-Basic program editing, as well as the new interface. Although the screen capture is still lacking, it is still the best TI Connect to date. Comparing the Editor to SourceCoder or TokenIDE or IES, the editor is still lacking, but it is like comparing a basic text editor to a full-feature IDE.


TI-Connect CE Program Editor


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Cemetech Minecraft 1.8 Server: Intellectual Survival
Published by KermMartian on February 25, 2015 at 1:40:06 PM CST | Discuss this article (36)

Cemetech's Minecraft server in its current incarnation has reached 14 months of age, and over those 14 months of Minecraft 1.7 and Minecraft 1.8, we have seen a flourishing world of cities and rivalries grow. Dozens of Cemetech members have built towns and nations around our growing map, railroads connect the far reaches of the world, and almost every day sees mining, building, and PvP. Unfortunately, although we originally envisioned the map as a bastion of very creative, clever PvP, this play style is no longer tenable. Specifically, we have found that our current userbase and game mechanics make it difficult to separate the rivalries and politics of Minecraft PvP from the real world, which has led to hurt feelings, alienated players, and decreased activity. Therefore, in the spirit of revitalization, we are proud to announce Cemetech's "new" Intellectual Survival server!

What does this mean?
  • No involuntary PvP, and no stealing. You aren't allowed to attack other players, you aren't allowed to raid towns, you aren't allowed to raid wilderness bases, and you can't try to grief towns or wilderness. These are now bannable offenses.
  • You can mutually agree to arena PvP with other players, but it must be mutual.
  • The emphasis is now on building the best, most beautiful, most functional buildings, cities, and empires, rather than also trying to prevent your enemies from growing. We will be holding monthly events to encourage camaraderie and cooperation.

So what are you waiting for? Come check out the Cemetech Minecraft server at mc.cemetech.net, and bring your friends! To kick things off, the server has been visited by a mysterious rogue known only as the Jack of Spades, who has sent us the following message:

I must away from this land of mischief and hills. Alas, I have hidden my treasure of ages, with spoils and riches from the far reaches of this map you cannot begin to touch, deep within the map (or perhaps way up high?). The clues to my treasure number three, and as you search, waypoints and valuables shall mark your travels. To search, perchance to dream: a lofty checkered room from a long-fallen empire marks your first clue.

-- Jack of Spades

If you choose to pursue Jack's riddles, you may find significant riches and unique items that will make your search worth your while. I only ask that if you do so, you post screenshots of your findings here in this thread.



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