initial commit

util/build.gradle

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+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+eclipse.project.name = appName + '-util'
+
+dependencies {
+  api "com.badlogicgames.gdx:gdx:$gdxVersion"
+  api "com.badlogicgames.gdx:gdx-tools:$gdxVersion"
+
+  if(enableGraalNative == 'true') {
+    implementation "io.github.berstanio:gdx-svmhelper-annotations:$graalHelperVersion"
+  }
+}

util/src/main/java/io/github/com/quillraven/util/TexturePackerTool.java

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+package io.github.com.quillraven.util;
+
+import com.badlogic.gdx.tools.texturepacker.TexturePacker;
+import java.io.File;
+
+/**
+ * Utility class to execute LibGDX's TextureAtlas packer tool.
+ * This tool packs multiple images into a single texture atlas.
+ */
+public class TexturePackerTool {
+    public static void main(String[] args) {
+        String inputDir = "assets_raw/map";
+        String outputDir = "assets/maps";
+        String packFileName = "tileset";
+
+        System.out.println("Packing textures from " + inputDir + " to " + outputDir + "/" + packFileName);
+        TexturePacker.process(inputDir, outputDir, packFileName);
+        System.out.println("Texture packing completed successfully!");
+    }
+}