Funkin/docs/COMPILING.md

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# Compiling Friday Night Funkin'
0. Setup
- Download Haxe from [Haxe.org](https://haxe.org)
- Download Git from [git-scm.com](https://www.git-scm.com)
- Do NOT download the repository using the Download ZIP button on GitHub or you may run into errors!
- Instead, open a command prompt and do the following steps...
1. Run `cd the\directory\you\want\the\source\code\in` to specify which folder the command prompt is working in.
- For example, `cd C:\Users\YOURNAME\Documents` would instruct the command prompt to perform the next steps in your Documents folder.
2. Run `git clone https://github.com/FunkinCrew/funkin.git` to clone the base repository.
3. Run `cd funkin` to enter the cloned repository's directory.
4. Run `git submodule update --init --recursive` to download the game's assets.
- NOTE: By performing this operation, you are downloading Content which is proprietary and protected by national and international copyright and trademark laws. See [the LICENSE.md file for the Funkin.assets](https://github.com/FunkinCrew/funkin.assets/blob/main/LICENSE.md) repo for more information.
5. Run `haxelib --global install hmm` and then `haxelib --global run hmm setup` to install hmm.json
6. Run `hmm install` to install all haxelibs of the current branch
7. Run `haxelib run lime setup` to set up lime
8. Perform additional platform setup
- For Windows, download the [Visual Studio Build Tools](https://aka.ms/vs/17/release/vs_BuildTools.exe)
- When prompted, select "Individual Components" and make sure to download the following:
- MSVC v143 VS 2022 C++ x64/x86 build tools
- Windows 10/11 SDK
- Mac: [`lime setup mac` Documentation](https://lime.openfl.org/docs/advanced-setup/macos/)
- Linux: [`lime setup linux` Documentation](https://lime.openfl.org/docs/advanced-setup/linux/)
- HTML5: Compiles without any extra setup
9. If you are targeting for native, you may need to run `lime rebuild <PLATFORM>` and `lime rebuild <PLATFORM> -debug`
10. `lime test <PLATFORM>` to build and launch the game for your platform (for example, `lime test windows`)
## Build Flags
There are several useful build flags you can add to a build to affect how it works. A full list can be found in `project.hxp`, but here's information on some of them:
- `-debug` to build the game in debug mode. This automatically enables several useful debug features.
- This includes enabling in-game debug functions, disables compile-time optimizations, enabling asset redirection (see below), and enabling the VSCode debug server (which can slow the game on some machines but allows for powerful debugging through breakpoints).
- `-DGITHUB_BUILD` will enable in-game debug functions (such as the ability to time travel in a song by pressing `PgUp`/`PgDn`), without enabling the other stuff
- `-DFEATURE_POLYMOD_MODS` or `-DNO_FEATURE_POLYMOD_MODS` to forcibly enable or disable modding support.
- `-DREDIRECT_ASSETS_FOLDER` or `-DNO_REDIRECT_ASSETS_FOLDER` to forcibly enable or disable asset redirection.
- This feature causes the game to load exported assets from the project's assets folder rather than the exported one. Great for fast iteration, but the game
- `-DFEATURE_DISCORD_RPC` or `-DNO_FEATURE_DISCORD_RPC` to forcibly enable or disable support for Discord Rich Presence.
- `-DFEATURE_VIDEO_PLAYBACK` or `-DNO_FEATURE_VIDEO_PLAYBACK` to forcibly enable or disable video cutscene support.
- `-DFEATURE_CHART_EDITOR` or `-DNO_FEATURE_CHART_EDITOR` to forcibly enable or disable the chart editor in the Debug menu.
- `-DFEATURE_STAGE_EDITOR` to forcibly enable the experimental stage editor.
- `-DFEATURE_GHOST_TAPPING` to forcibly enable an experimental gameplay change to the anti-mash system.
# Troubleshooting
If you experience any issues during the compilation process, DO NOT open an issue on GitHub. Instead, check the [Troubleshooting Guide](TROUBLESHOOTING.md) for steps on how to resolve common problems.