Hello forums!

CETris aims to be a fully featured Tetris game for the 84CE, with the eventual goal of have as customization as possible mechanically and graphically. Current updates are focused more on functionality than graphics, but eventually a more graphically polished version is intended to be released. The game is fully playable in it's current state, so if you just want to play the game, go ahead!

Current version (v0.5) features:

Functioning game
Super Rotation System
Hold piece
Bag randomizer
Six modes: Marathon, Retro, Dig/Excavate, Sprint, Cascade, Dig Challenge
Four block themes
Button configuration and repeat settings
Saving highscore, theme, and button information
Piece preview
Standard scoring, including T-Spin and back-to-back scoring
Standard speed curve

Future plans (v0.6+):

Graphical improvements (adding a background, nicer menu, scoring notifications, etc.)
Additional modes: Ultra, Custom
Support for more block types
Probably bug fixes
Better documentation of code & data
Eventually, some form of editor for creating graphics/theme packs

The current releases and source code are available here: https://github.com/Minxrod/CETris

Here's a video of v0.5:


Tools used: Notepad++, SPASM, CEmu, convbin

That's it. If you have an 84CE, please consider testing this and offering feedback. Thank you!

So, update time!

The new version includes many improvements to the menu and user-customization, as well as a large speed boost! (Not drawing the entire game every frame speeds it up. Who knew?)

This release includes a few different game modes: Marathon, Retro (no SRS, no hold, no hard drop, etc.), Line Race (once high scores are implemented, this will be timed instead of scored), Dig and Excavate, which are won by clearing the bottom row.

The menu controls are in the readme, but the important ones are these: 2nd is confirm, Alpha is back, left/right are used when selecting a number (like the starting level).

You can select a few different styles of blocks, but they aren't yet saved on exit.

Saving and high-scores are planned for the next update.

Anyways, please try it out and enjoy! If you encounter any strange bugs, please report them here or on github: https://github.com/Minxrod/CETris/

Saving/Highscores are now implemented! The save contains your button repeat speeds, current theme, and a high score per game setting/mode. (Might change this to include more info, not entirely sure how best to save scores yet.)

Some fixes/changes
Modes are now not reset after every game, so grinding one mode is now much easier.
Level also defaults back to one instead of increasing based on the last game.
Lock delay increased from 5 frames to 30 frames - the 5 frames was a holdover from when this still ran at probably 10 frames/sec. Now, the game should feel much more playable without near-instant locks. Note that hard drop is still an instant lock, and this likely won't change.

IMPORTANT NOTE: if you ran an earlier, non-release version that creates an 81 byte save file, DELETE THE SAVE APPVAR (CETrisSV). This version does not have a check for whether the variable found is the right size or not, since it doesn't affect any release versions, but if you compiled a different version that created an 81 byte save file you need to delete it or risk corruption from writing past the end of the save. This DOES NOT affect any released version.

As always, please leave feedback and bugs either here or on github: https://github.com/Minxrod/CETris/

Sounds great man, it would be a good idea to include some screenshots in your post to allow people to easier see how this project is coming along. It's hard to tell what the most up to date screenshot is from your GD link.

Warning to anyone who has tried this: Don't run this with the save file unarchived.

I was using a old/bad check for whether or not the variable was in RAM that apparently never worked, so it might corrupt something if your save isn't in archive. It works as expected if you keep the save file in archive, which is what the program tries to do anyways, just be careful. This should be resolved in the next update.

This looks good so far, keep it up.

Loving the video added to the first post - the speed is great!

I agree; the speed makes this look pretty sweet

CEtris v0.5 update: Some new stuff! Most interestingly is the piece preview, which is finally done and the main reason I took too long to finish this update. You can now see the next 6 pieces on the right of the board. This update also fixes a save bug, where if you had unarchived the save file it would cause problems - now, CETris will properly load and re-archive the file for you on exit.

Additions:

Cascade mode: When you clear a line, blocks fall down and clear more lines.
Dig challenge: Rising garbage. How many lines can you clear before the garbage pushes too high?
CETrisDT appvar: All graphics and menu data is now stored in a separate data appvar, CETrisDT. This is required to use the program.
Piece preview: You can see upcoming pieces
Control config: you can set what buttons to use for in-game actions. (Menu controls might be added later) Controls are saved to the save file, so you shouldn't need to reset them often.

Fixes:

Save glitch fixed
Fixed highscore not being handled/displayed properly sometimes
Scoring in general has been updated to better match the standard scoring, and now implements t-spins and back-to-back bonuses.
Line Race has been renamed to Sprint (No gameplay differences).
Speed curve updated for accuracy to standard

Note: Due to scoring changes and modes being moved around, please delete your old save file. Otherwise you'll probably have scores that don't match the modes you obtained them in.

Download for release is on github, and as usual, please offer feedback and report bugs either here or on github: https://github.com/Minxrod/CETris/

It has been a while since the last update, but that's not to say that nothing was done. Mostly internal changes, but there are a couple of quality of life improvements and new features in this update as well:

Additions:

Many internal changes to how graphics are handled - in general, you can do more and it's faster now. The game no longer renders everything twice, so you have more time to draw interesting things, such as the...
Ghost piece - now you can a darker version of the current shape to see where it is going to land.
More themes - there are 8 new block themes. And to go with this...
Theme preview - Now, when you select a theme, you can see it in the menu instead of needing to start a game. Use it to see all the new block designs!

Changed:

Garbage blocks are now red. (They might be changed back to gray/made theme-able later.)
Color palette has been overall improved, and made more consistent.
Source has been split into multiple files

I have several plans for the next update, mostly mechanical changes. Current plans are to

Implement spawn delay
Implement move reset (to prevent endless stalling)
Decrease lock delay beyond level 20, to make endless much harder
Finally add a countdown/ultra mode (Time attack)
Make ghost piece either optional or mode dependent

We'll see if I finish before another couple of years pass... here's hoping!

If you have any feedback, bug reports, or comments, leave them here or on github: https://github.com/Minxrod/CETris/

Very nice! I was really hoping you'd come back to this. The rendering changes sound particularly nice, especially the addition of the ghost blocks.

Any screenshots to share? I'm interested to see the different block themes you've come up with.

New update, mostly consisting of some more gameplay changes, and finally implementing Ultra mode (which has been planned since around v0.3ish)

Added:

Ultra mode - You have a fixed amount of time to get as many points as possible
Spawn delay added - there is now a small delay between locking a piece and the next spawning
Lock animation added - the piece now flashes when you lock it for clarity
Move reset added - you can no longer rotate in place forever, it is now limited to 15 moves/rotates. (Infinite rotation may be made optional in the future)
Instant hold, instant rotate added - If you hold buttons during spawn delay, you can prepare the action in advance

Changes:

Lock delay decreases past level 20 (pretty much only applies in endless modes)
Retro mode now uses the old randomizer - you are no longer guaranteed to get every piece
Retro mode now disables the ghost piece
Theme preview no longer requires you to select the theme to see it
Garbage piece is now a darker shade of red to distinguish it more from the Z piece

Some of the remaining things to do before creating a proper release:

The menus are in need of a visual and organizational update
Custom mode/customization of some variety
More control over block/game themes would be good
Maybe scoring notifications?

There isn't a particular order planned out yet for these, but the intent is to get to them at some point

A couple of screenshots for v0.7, showing the ghost piece and a couple of the new block themes (they're also taken in Ultra mode, but you can't tell from the screenshot...):



If you have bug reports, suggestions, or feedback, post them here or to https://github.com/Minxrod/CETris/.

Looks very nice! I'm glad to see another Tetris game for the CE. A tiled texture to the white areas like in ZTetris/ZTris for monochrome TI-83/83+/84+ calculators would definitively be a nice addition.

I'll give this a try when I have a chance (assuming I still have free space on my CE)

This is really cool!

Can I recommend that you add some sort of option to include a "Dark Mode" like what's mentioned in the source? It's really useful since the CE tends to induce eye strain( for me at least). Here's a screenshot of it but with the black replaced with the dark grey you use in your palette.

New year, new update!
The focus of this update was mostly on improving the visuals and customization options, as well as a couple of bugfixes.

Added:

Dark mode, grayscale blocks mode, and some background color and tile options (as was suggested in the forum thread)
Improved theme preview
Program icon! If you use a shell, you can see the new CETris icon.

Changes:

Generally, there's been several small visual improvements, like the Hold box now matches with the Next box, and numbers draw faster.
Several fixes relating to specific combinations of actions being one frame apart
Setting for lock delay moved to controls; also it actually works again
Ultra-5 is correct length (there was a small oversight that made it far too short)

Note that due to save file changes, it is suggested you delete the old save appvar CETrisSV, or your button timings may be very strange.

As usual, if you have feedback of any kind, be it bug reports or suggestions, post them here or on github at https://github.com/Minxrod/CETris

I'm trying to embed some gameplay to show the new themes, but only one of them seems to be working, and it was the one that used nothing but the same default white background...

So instead, here's some links if you want to see some of the newer theme stuff added. Or, you could instead download the program and see for yourself
https://drive.google.com/file/d/1u-gZcs45qmS9TOi5RtFILNo4RiPAOGtX/view?usp=share_link
https://drive.google.com/file/d/1DiY7unEFGsZ3or7GLwtMDFf-xhEkOCza/view?usp=share_link
https://drive.google.com/file/d/1GTSyg6YjprDZDydRAlHg42QBjK-1leUM/view?usp=share_link

Impressive, keep up the good work. Just read through this thread, and I will try this out soon.

That looks great, congratulations!

add 4 wide. that would be sick.

Do you mean the scoring? It's already possible to execute a 4-wide strategy, you just don't gain the combo points from it yet. The combo scoring is planned, if that's what you mean.

Can't wait to try this. Are you gonna add this to the cemetech archives at some point?