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tja2fumen/README.md

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<p align="center">
<img
width="400"
src="https://user-images.githubusercontent.com/76574898/255353006-6c4504d0-c9a4-40d1-961f-db4cef7add0d.png"
alt="tja2fumen TJA chart converter"
/>
<br>
tja2fumen is a tool that allows you to convert TJA charts (<code>.tja</code>) to fumen charts (<code>.bin</code>).
</p>
<p align="center">
<a href="https://github.com/vivaria/tja2fumen/actions/workflows/test_and_publish_release.yml?query=branch%3Amain"><img src="https://img.shields.io/github/actions/workflow/status/vivaria/tja2fumen/test_and_publish_release.yml?label=Tests" alt="Test status (main branch)"></a>
<a href="https://github.com/vivaria/tja2fumen/releases/latest"><img src="https://img.shields.io/github/v/release/vivaria/tja2fumen" alt="GitHub release (with filter)"></a>
<a href="https://github.com/vivaria/tja2fumen/blob/main/LICENSE.txt"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="MIT License"></a>
</p>
----
## Usage
tja2fumen is included as part of several existing projects. So, you may be using tja2fumen already!
- **XB1/TDMX**: [TakoTako](https://github.com/fluto/takotako) converts both chart and audio files for XB1/TDMX.
- **Nijiro**: [TaikoSoundEditor](https://github.com/NotImplementedLife/TaikoSoundEditor) converts both chart and audio files for NIjiro.
You can also use tja2fumen directly on a `.tja` file by downloading `tja2fumen.exe` from the [Releases](https://github.com/vivaria/tja2fumen/releases) page and running `tja2fumen.exe file.tja` in a command prompt.
> **Note**: For older versions of TakoTako (3.2.0 and below), you can add tja2fumen by renaming `tja2fumen.exe` to `tja2bin.exe` and placing it inside TakoTako's plugin folder (`BepInEx/plugins/com.fluto.takotako/`).
## TJA Support
If there is an unsupported feature that you would like support for, please make a request by [opening a new issue](https://github.com/vivaria/tja2fumen/issues/new).
### Supported file formats
> **Legend**: `✅` = Fully supported, `❌` = Not supported
| | tja 2 fumen | tja 2 bin | Comment |
|---------------------|-------------|-----------|----------|
| UTF-8 (with BOM) | `✅` | `❌` |   |
| UTF-8 (without BOM) | `✅️` | `✅` |   |
| Shift-JIS | `✅` | `✅` |   |
### Supported metadata
> **Legend**: `✅` = Fully supported, `⚪️` = Ignored, `⚠️` = Incorrect behavior, `❌` = Not supported
| | tja 2 fumen | tja 2 bin | Comment |
|-----------------------------------------------------------------|-------------|-----------|-------------------------------------------------------------------------|
| `BPM:`, `OFFSET:` | `✅` | `✅` |   |
| `TITLE:`, `SUBTITLE:`, `WAVE:`,<br>`DEMOSTART:`, etc. | `⚪️` | `⚪️` | The only global metadata needed are `BPM:` and `OFFSET:`.   |
| `COURSE:`, `LEVEL:`, `BALLOON:`,<br> `SCOREINIT:`, `SCOREDIFF:` | `✅` | `✅` |   |
| `STYLE:` (`Single`, `Double`) | `✅` | `❌` |   |
| `EXAM1:`, `GAUGEINCR:`, `TOTAL:`, etc. | `⚪️` | `⚪️` | Other simulator-specific metadata fields are currently ignored.  |
### Supported notes/commands
> **Legend**: `✅` = Fully supported, `⚪️` = Ignored, `⚠️` = Incorrect behavior, `❌` = Not supported
| | tja 2 fumen | tja 2 bin | Comment |
|--------------------------------------------------|-------------|-----------|---------------------------------------------------------------------------------------------------------------|
| `0`, `1`, `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9` | `✅` | `✅` | |
| `A`, `B` | `✅` | `❌` | |
| `C`, `D`, `E`, `F`, `G`, `H`, `I` | `⚠️` | `❌` | Replaced by normal notes/rolls in tja2fumen. |
| `9000,`<br>`9008,` | `⚪️` | `⚠️` | Double Kusudama note treated as 1 drumroll by tja2fumen, but 2 overlapping drumrolls by tja2bin. |
| `#START`, `#END` | `✅` | `✅` | |
| `#START P1`, `#START P2` | `✅` | `❌` | |
| `#BPMCHANGE` | `✅` | `⚠️` | See [#16](https://github.com/Fluto/TakoTako/issues/16) |
| `#MEASURE` | `✅` | `✅` | |
| `#SCROLL` | `✅` | `✅` | |
| `#GOGOSTART`, `#GOGOEND` | `✅` | `✅` | |
| `#BARLINEOFF`, `#BARLINEON` | `✅` | `✅` | |
| `#DELAY` | `✅` | `❌` | See [#27](https://github.com/Fluto/TakoTako/issues/27) |
| `#BRANCHSTART`, `#BRANCHEND` | `✅` | `✅` | |
| `#N`, `#E`, `#M` | `✅` | `✅` | |
| `#SECTION` | `⚠️` | `❌` | See [#52](https://github.com/vivaria/tja2fumen/issues/52), [#27](https://github.com/Fluto/TakoTako/issues/27) |
| `#LEVELHOLD` | `⚠️` | `❌` | See [#52](https://github.com/vivaria/tja2fumen/issues/52) |
| `#BMSCROLL`, `#LYRIC`,<br>`#DIRECTION`, etc. | `⚪️` | `❌` | Other simulator-specific chart commands are currently ignored. |
## Reporting bugs
If you've found a `.tja` file that tja2fumen converts incorrectly, please [open a new issue](https://github.com/vivaria/tja2fumen/issues/new) on the tja2fumen repo.
It is especially important that you attach the song files to the issue. You can do this by adding the song files to a `.zip` (Select files -> Right click -> "Send to" -> "Compressed (zipped) folder"), and then uploading the `.zip` to the issue. This greatly helps me to reproduce and fix any issues.
You can also message me directly on Discord (`_vivaria`) if you don't have a GitHub account, and I will take care of making an issue for you. :)
## Building on top of tja2fumen
If you are a developer looking to add tja2fumen to your project, you have two options:
1. For non-Python projects, you can download `tja2fumen.exe` and call it via a system call.
2. For Python projects, you can install tja2fumen via `pip install tja2fumen`.
tja2fumen uses a very permissable license ([MIT License](https://choosealicense.com/licenses/mit/)). You are free to distribute and modify tja2fumen, but please include a copy of the MIT License alongside the `tja2fumen.exe` executable if you copy it into your project.
## Attribution
- The fumen-parsing code in this project is based off of a modified copy of the [`readFumen()`](https://github.com/KatieFrogs/fumen-tools/blob/6ff3a2f7f53687f3dd49c5c57fcfc5ccbe3e5a10/fumen2osu/fumen2osu.py#L7-L152) function from the [`fumen2osu.py`](https://github.com/KatieFrogs/fumen-tools/blob/main/fumen2osu/fumen2osu.py) found in @KatieFrogs' [`fumen-tools`](https://github.com/KatieFrogs/fumen-tools) project.
- The TJA-parsing code in this project is a Python translation of the [`parseTJA.js`](https://github.com/WHMHammer/tja-tools/blob/master/src/js/parseTJA.js) file from @WHMHammer's [`tja-tools`](https://github.com/WHMHammer/tja-tools).
- sakurada0291, DDDDDD, U-ros, and others in the Discord for helping to test tja2fumen. :)