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![](https://raw.githubusercontent.com/Gormogon/SMAPI/master/docs/imgs/SMAPI.png)
**SMAPI** is an [open-source](LICENSE) modding API for [Stardew Valley](http://stardewvalley.net/).
It takes care of loading mods into the game context, and exposes events they can use to interact
with the game. It's safely installed alongside the game's executable, and doesn't change any of
your game files.
## Contents
* **[For players](#for-players)**
* **[For mod developers](#for-mod-developers)**
* [For SMAPI developers](#for-smapi-developers)
* [Compiling from source](#compiling-from-source)
* [Debugging a local build](#debugging-a-local-build)
* [Preparing a release](#preparing-a-release)
* [Advanced usage](#advanced-usage)
* [Configuration file](#configuration-file)
* [Command-line arguments](#command-line-arguments)
## For players
* [How to install SMAPI & use mods](http://canimod.com/guides/using-mods#installing-smapi)
* [Release notes](release-notes.md#release-notes)
* Need help? Come [chat on Discord](https://discord.gg/KCJHWhX) or [post in the support forums](http://community.playstarbound.com/threads/smapi-stardew-modding-api.108375/).
_Please don't submit issues on GitHub for support questions._
## For mod developers
* [How to develop mods](http://canimod.com/guides/creating-a-smapi-mod)
* [How to update mods](http://canimod.com/guides/updating-a-smapi-mod)
* [Release notes](release-notes.md#release-notes)
* [SMAPI/Farmhand Discord](https://discordapp.com/invite/0t3fh2xhHVc6Vdyx) (chat with SMAPI developers)
## For SMAPI developers
_This section is about compiling SMAPI itself from source. If you don't know what that means, this
section isn't relevant to you; see the previous sections to use or create mods._
### Compiling from source
Using an official SMAPI release is recommended for most users.
If you'd like to compile SMAPI from source, you can do that on any platform using
[Visual Studio](https://www.visualstudio.com/vs/community/) or [MonoDevelop](http://www.monodevelop.com/).
SMAPI uses build configuration derived from the [crosswiki mod config](https://github.com/Pathoschild/Stardew.ModBuildConfig#readme)
to detect your current OS automatically and load the correct references. Compile output will be
placed in a `bin` folder at the root of the git repository.
### Debugging a local build
Rebuilding the solution in debug mode will copy the SMAPI files into your game folder. Starting
the `StardewModdingAPI` project with debugging will launch SMAPI with the debugger attached, so you
can intercept errors and step through the code being executed.
### Preparing a release
To prepare a crossplatform SMAPI release, you'll need to compile it on two platforms. See
_[crossplatforming a SMAPI mod](http://canimod.com/guides/crossplatforming-a-smapi-mod#preparing-a-mod-release)_
for the first-time setup. For simplicity, all paths are relative to the root of the repository (the
folder containing `src`).
1. Update the version number in `GlobalAssemblyInfo.cs` and `Constants::Version`. Make sure you use a
[semantic version](http://semver.org). Recommended format:
build type | format | example
:--------- | :-------------------------------- | :------
dev build | `<version>-alpha-<timestamp>` | `1.0.0-alpha-201611300500`
beta | `<version>-beta<incrementing ID>` | `1.0.0-beta2`
release | `<version>` | `1.0.0`
2. In Windows:
1. Rebuild the solution in _Release_ mode.
2. Rename `bin/Packaged` to `SMAPI-<version>` (e.g. `SMAPI-1.0`).
2. Transfer the `SMAPI-<version>` folder to Linux or Mac.
_This adds the installer executable and Windows files. We'll do the rest in Linux or Mac,
since we need to set Unix file permissions that Windows won't save._
2. In Linux or Mac:
1. Rebuild the solution in _Release_ mode.
2. Copy `bin/Packaged/Mono` into the `SMAPI-<version>` folder.
3. If you did everything right so far, you should have a folder like this:
```
SMAPI-1.x/
Mono/
Mods/*
Mono.Cecil.dll
Mono.Cecil.Rocks.dll
Newtonsoft.Json.dll
StardewModdingAPI
StardewModdingAPI.config.json
StardewModdingAPI.data.json
StardewModdingAPI.exe
StardewModdingAPI.exe.mdb
StardewModdingAPI.AssemblyRewriters.dll
System.Numerics.dll
System.Runtime.Caching.dll
steam_appid.txt
Windows/
Mods/*
Mono.Cecil.dll
Mono.Cecil.Rocks.dll
Newtonsoft.Json.dll
StardewModdingAPI.config.json
StardewModdingAPI.data.json
StardewModdingAPI.exe
StardewModdingAPI.pdb
StardewModdingAPI.xml
StardewModdingAPI.AssemblyRewriters.dll
steam_appid.txt
install.exe
readme.txt
```
4. Open a terminal in the `SMAPI-<version>` folder and run `chmod 755 Mono/StardewModdingAPI`.
5. Copy & paste the `SMAPI-<version>` folder as `SMAPI-<version>-for-developers`.
6. In the `SMAPI-<version>` folder, delete the following files:
* `Mono/StardewModdingAPI.config.json`
* `Windows/StardewModdingAPI.config.json`
* `Windows/StardewModdingAPI.xml`
7. Compress the two folders into `SMAPI-<version>.zip` and `SMAPI-<version>-for-developers.zip`.
## Advanced usage
### Configuration file
You can customise the SMAPI behaviour by editing the `StardewModdingAPI.config.json` file in your
game folder. If it's missing, it'll be generated automatically next time SMAPI runs. It contains
these fields:
field | purpose
----- | -------
`DeveloperMode` | Default `false` (except in _SMAPI for developers_ releases). Whether to enable features intended for mod developers. Currently this only makes `TRACE`-level messages appear in the console.
`CheckForUpdates` | Default `true`. Whether SMAPI should check for a newer version when you load the game. If a new version is available, a small message will appear in the console. This doesn't affect the load time even if your connection is offline or slow, because it happens in the background.
### Command-line arguments
SMAPI recognises the following command-line arguments. These are intended for internal use and may
change without warning.
argument | purpose
-------- | -------
`--no-terminal` | SMAPI won't write anything to the console window. (Messages will still be written to the log file.)
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