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tutorial:setup [2021/06/03 15:52] – [Prerequisites] liachtutorial:setup [2023/09/09 18:03] (current) andrew6rant
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 ===== Prerequisites ===== ===== Prerequisites =====
- +   * A Java Development Kit (JDK) for Java 17 (recommended) or newer. Visit [[https://adoptium.net/releases.html]] for installers.
-   * A Java Development Kit (JDK) for Java 16 (recommended) or newer. Visit [[https://adoptopenjdk.net/]] for installers.+
        * If you are professional, you can obtain a JDK from [[http://jdk.java.net/]], which needs to be extracted and have system variables set up manually.        * If you are professional, you can obtain a JDK from [[http://jdk.java.net/]], which needs to be extracted and have system variables set up manually.
    * Any Java IDE, for example [[https://www.jetbrains.com/idea/download/#section=windows|Intellij IDEA]] and [[https://www.eclipse.org/downloads/|Eclipse]]. You may also use any other code editors, such as [[https://code.visualstudio.com/|Visual Studio Code]].    * Any Java IDE, for example [[https://www.jetbrains.com/idea/download/#section=windows|Intellij IDEA]] and [[https://www.eclipse.org/downloads/|Eclipse]]. You may also use any other code editors, such as [[https://code.visualstudio.com/|Visual Studio Code]].
 +       * If you are not familiar with any of these, we recommend to use Intellij IDEA as that is what most people choose for modding.
  
-===== Mod Startup ===== +===== Mod Setup =====
-There are two main ways to make a new mod for Minecraft based on Fabric. You can either manually download fabric-example-mod and setup by yourself, or use automatic tools for you. +
 ==== Manual Steps ==== ==== Manual Steps ====
-   - Copy the starting files from [[https://github.com/FabricMC/fabric-example-mod/|fabric-example-mod]] (or from [[https://github.com/natanfudge/fabric-example-mod-kotlin|the Kotlin version]], if you wish to use Kotlin,) excluding the ''LICENSE'' and ''README.md'' files - as those apply to the template itself, not necessarily to your mod.+   - Copy the starting files from [[https://github.com/FabricMC/fabric-example-mod/|fabric-example-mod]] (or from [[https://fabricmc.net/develop/template/|the template generator]], if you wish to use Kotlin or other featues.) excluding the ''LICENSE'' and ''README.md'' files - as those apply to the template itself, not necessarily to your mod.
    - Edit ''gradle.properties'':    - Edit ''gradle.properties'':
        * Make sure to set ''archives_base_name'' and ''maven_group'' to your preferred values.        * Make sure to set ''archives_base_name'' and ''maven_group'' to your preferred values.
-       * Make sure to update the versions of Minecraft, the mappings and the loader - all of which can be queried through [[https://modmuss50.me/fabric.html|this website]] - to match the versions you wish to target.+       * Make sure to update the versions of Minecraft, the mappingsthe loader and the loom - all of which can be queried through https://fabricmc.net/develop/ - to match the versions you wish to target.
        * Add any other dependencies you plan to use in ''build.gradle''.        * Add any other dependencies you plan to use in ''build.gradle''.
    - Import the build.gradle file to your IDE. You may refer to the next section for specific IDE's.    - Import the build.gradle file to your IDE. You may refer to the next section for specific IDE's.
    - Happy modding!    - Happy modding!
  
-You can generate the Minecraft sources for reference (since IDEA already has a decompiler this is only useful for searching through the code) : +=== Fabric Mod ID Change === 
- Run the ''genSources'' Gradle task. If your IDE doesn't have Gradle integrationthen run the following command in the terminal: ''gradlew genSources'' (or ''./gradlew genSources'' on Linux/MacOS)+As of Minecraft 1.19.2, Fabric API's mod ID has changed from ''fabric'' to ''fabric-api''. When backporting from 1.19.2 to earlier versionsyou must alter the ''depends'' section of your ''fabric.mod.json'' to expect ''fabric''
-   +
 === IntelliJ IDEA === === IntelliJ IDEA ===
 If you are using IntelliJ IDEA by JetBrains, please follow these steps: If you are using IntelliJ IDEA by JetBrains, please follow these steps:
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     - Open the 'Gradle Settings' dialog from the Gradle tab.     - Open the 'Gradle Settings' dialog from the Gradle tab.
     - Change the 'Build and run using' and 'Run tests using' fields to 'IntelliJ IDEA'.     - Change the 'Build and run using' and 'Run tests using' fields to 'IntelliJ IDEA'.
-    - Go to File -> Project Structure -> Project and set 'Project compiler output' to ''$PROJECT_DIR$/out''. 
  
 Unfortunately, it is currently impossible to set an IDE-wide default for the 'Build and run using' and 'Run tests using' options, so these steps have to be repeated for every new project. Unfortunately, it is currently impossible to set an IDE-wide default for the 'Build and run using' and 'Run tests using' options, so these steps have to be repeated for every new project.
  
-**NOTE:** Don't run ''./gradlew idea'' as it messes up with gradle and breaks develop environment.+**NOTE:** Don't run the ''idea'' gradle task. It is known to break development environment. 
 + 
 +If you are using IntelliJ IDEA you can use the [[https://plugins.jetbrains.com/plugin/8327|MinecraftDev plugin]]. 
 +This plugin adds support for automatically generating Fabric projects as well as some mixin related features like inspections, 
 +generating accessors/shadow fields, and copying Mixin Target References (JVM Descriptors). 
 +You can install it using IntelliJ's internal plugin browser by navigating to File → Settings → Plugins, 
 +then clicking the Marketplace tab and searching for Minecraft. 
 + 
 +**NOTE:** The default template in the mcdev plugin blindly uses the latest unstable version of the loom. Use with caution.
  
 === Eclipse === === Eclipse ===
-If you are using Eclipse and you would like to have the IDE run configs you can run ''gradlew eclipse''.+If you are using Eclipse and you would like to have the IDE run configs you can run ''gradlew eclipse''. The project can then be imported as a normal (non-gradle) Eclipse project into your workspace using the 'File' - 'Import...' menu, then 'General' -> 'Existing Projects into Workspace'.
  
 === Visual Studio Code === === Visual Studio Code ===
-If you are using VSCode by Microsoft, please follow [[tutorial:vscode_setup|these instructions]]+If you are using VSCode, please follow [[tutorial:setup:vscode|these instructions]].
  
-==== MinecraftDev IntelliJ IDEA Plugin ==== +===== Generating Minecraft Sources ===== 
-If you are using IntelliJ IDEA you can use the MinecraftDev pluginThis plugin adds support for automatically generating Fabric projects as well as some mixin related features like inspectionsgenerating accessors/shadow fields, and copying Mixin Target References (JVM Descriptors). +Reading the Minecraft source is an essential part of modding. 
-The plugin can be found [[https://plugins.jetbrains.com/plugin/8327|in the IntelliJ plugin repository]], so you can install it using IntelliJ's internal plugin browser by navigating to File → Settings → Plugins, then clicking the Marketplace tab and searching for Minecraft.+Unfortunately, we can't publish the Minecraft source because it violates the Minecraft EULA. 
 +You need to generate the Minecraft source yourself. 
 + 
 +To generate the Minecraft source. run the ''genSources'' gradle task. 
 +If your IDE doesn't have gradle integrationrun the following command in the terminal: ''gradlew genSources'' (or ''./gradlew genSources'' on Linux/macOS). 
 +It can take a while depending on your computer power. 
 +You may need to refresh gradle after running the task. 
 + 
 +See [[tutorial:reading_mc_code|Reading the Minecraft source]] for how to read the source.
  
-==== Generator ==== 
-If you are unable to use the MinecraftDev plugin or the [[https://github.com/FabricMC/fabric-example-mod/|fabric-example-mod]] repo, you may also use [[https://github.com/ExtraCrafTX/GeneratorFabricMod|GeneratorFabricMod]] by ExtraCrafTX, a convenient tool to automatically generate new fabric mods from template. Follow these steps: 
-  - Download latest release of GeneratorFabricMod [[https://github.com/ExtraCrafTX/GeneratorFabricMod/releases|here]] and extract them. 
-  - Make a new directory, then run a command shell there and type ''path/to/GeneratorFabricMod/bin/GeneratorFabricMod''. 
-  - After letting it get its dependencies, follow the instructions and input required information. 
-  - You're now done, just open the project folder with in your IDE. 
 ===== Getting started ===== ===== Getting started =====
 Try [[tutorial:items|adding an item]] or [[tutorial:blocks|a block]]. It's also a good idea to visit [[tutorial:applychanges|Applying changes without restarting Minecraft]]. Try [[tutorial:items|adding an item]] or [[tutorial:blocks|a block]]. It's also a good idea to visit [[tutorial:applychanges|Applying changes without restarting Minecraft]].
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   * While Fabric API is not strictly necessary for developing mods, its primary goal is to provide cross-compatibility and hooks where the game engine does not, and as such it is highly recommended! Even some of the tutorials on the wiki implicitly require Fabric API.   * While Fabric API is not strictly necessary for developing mods, its primary goal is to provide cross-compatibility and hooks where the game engine does not, and as such it is highly recommended! Even some of the tutorials on the wiki implicitly require Fabric API.
   * Occasionally, with development of fabric-loom (our Gradle build plugin) issues may crop up which require resetting the cache files. This can be done by running ''gradlew cleanloom''. Running ''gradlew %%--%%stop'' can also help with a few rare issues.   * Occasionally, with development of fabric-loom (our Gradle build plugin) issues may crop up which require resetting the cache files. This can be done by running ''gradlew cleanloom''. Running ''gradlew %%--%%stop'' can also help with a few rare issues.
 +  * Keep up with the latest Loom version (which is defined in ''build.gradle'') and the Fabric Loader and Fabric API version for your mod (which is defined in ''build.gradle'' or ''gradle.properties''). Latest version can be found in [[https://fabricmc.net/develop/]]. Even the old version Minecraft is supported by latest Loom and latest Fabric Loader.
 +  * Keep up with the latest Gradle version, which can be defined in ''gradle/wrapper/gradle-wrapper.properties''. Old version Minecraft is supported by latest Gradle.
 +    * Different Gradle versions require different Java versions. Usually latest Gradle supports the recommended Java version 17.
 +  * If you're developing mods for old version Minecraft, besides changing ''gradle.properties'', you may also need to change the Java compatibility version in ''build.gradle'' and the mixin config.
   * Don't hesitate to ask questions! We're here to help you and work with you to make your dream mod a reality.   * Don't hesitate to ask questions! We're here to help you and work with you to make your dream mod a reality.
  
 ===== Troubleshooting ===== ===== Troubleshooting =====
  
-==== Missing sounds ====+==== "no usages" on every method ==== 
 +After running the ''genSources'' gradle task in IntelliJ IDEA, check if the sources are attached properly. Open a Minecraft .class file and click on the "Choose Sources..." button on the top right of the screen. Select the jar with "-sources" at the end (e.g. ''.gradle\loom-cache\1.20.1\net.fabricmc.yarn.1_20_1.1.20.1+build.10-v2\minecraft-project-@-merged-named-sources.jar'')
  
 +==== Missing sounds ====
 Sometimes, when importing the Gradle project into an IDE, the assets might not download correctly. In this case, run the ''downloadAssets'' task manually - either using IDE's built-in menu or by simply running ''gradlew downloadAssets''. Sometimes, when importing the Gradle project into an IDE, the assets might not download correctly. In this case, run the ''downloadAssets'' task manually - either using IDE's built-in menu or by simply running ''gradlew downloadAssets''.
  
 +==== Could not find or load class net.fabricmc.devlaunchinjector.Main: java.lang.ClassNotFoundException / "no JDK module specified" in the run config  ====
 +It seems to be a bug of Intellij IDEA since a recent update 2023.2. To fix, just delete the `.idea` folder entirely and then restart Intellij IDEA. The module will be reconstructed. You may need to specify Java versions again. If after restarting there is no run config, you can run `gradle ideaSyncTask` then check it again.
 +
 +==== java.lang.ClassNotFoundException: net.fabricmc.loader.impl.launch.knot.KnotClient / java.lang.TypeNotPresentException: Type net/minecraft/util/Identifier not present / java.lang.RuntimeException: Minecraft game provider couldn't locate the game! The game may be absent from the class path, lacks some expected files, suffers from jar corruption or is of an unsupported variety/version. ====
 +This may be because the project path contains non-ASCII characters that may cause incompatibility. Try move the project to paths without non-ASCII characters, or in the run config of "Minecraft Client" and "Minecraft Server", set "Shorten Command Line" from "@argfile (Java 9+)" to "none".
 +===== What's Next?  =====
 +Create your first [[tutorial:items|item]].
tutorial/setup.1622735538.txt.gz · Last modified: 2021/06/03 15:52 by liach