Update CI

.github/workflows/gradle.yml

@@ -0,0 +1,37 @@
+name: Java CI
+
+on: 
+  workflow_dispatch:
+  push:
+  pull_request:
+  schedule:
+    - cron: '22 13 * * 6'
+
+jobs:
+  # Build Movecraft
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout Movecraft
+        uses: actions/checkout@v4
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Build with Gradle
+        run: ./gradlew build
+
+      - name: Stage jar
+        run: mkdir staging && cp build/libs/Movecraft.jar staging && mv staging/Movecraft.jar staging/Movecraft_$GITHUB_SHA.jar
+      - name: Upload jar
+        uses: actions/upload-artifact@v4
+        with:
+          name: Movecraft_Dev-Build
+          path: staging/Movecraft_*.jar

README.md

@@ -24,17 +24,10 @@ Please check the [Wiki](https://github.com/APDevTeam/Movecraft/wiki) and [FAQ](h
 [Discord](http://bit.ly/JoinAP-Dev)
 
 ## Development Environment
-Movecraft uses multiple versions of the Spigot server software for legacy support.  As such, you need to run [BuildTools](https://www.spigotmc.org/wiki/buildtools/) for several versions before building the plugin.  It doesn't matter where you do this, but inside the Movecraft directory is probably a bad place.  We recommend building Spigot 1.18.2 with Java 17, and 1.20.6 with Java 21.
-
-```
-java -jar BuildTools.jar --rev 1.18.2 --remapped
-java -jar BuildTools.jar --rev 1.20.6 --remapped
-```
-
-Once you have compiled CraftBukkit, it should continue to exist in your local maven repository, and thus you should need to compile each version at most one time. Once complete, run the following to build Movecraft through `maven`.
+Building Movecraft is as easy as downloading the source code and executing the following command:
 ```
-mvn -T 1C clean install
+./gradlew build
 ```
-Compiled jars can be found in the `/target` directory.
+Compiled jars can be found in the `/build/libs` directory.
 
 #### Movecraft is released under the GNU General Public License V3.