Adhere to recommended .gitignore patterns

.gitignore

@@ -1,19 +1,64 @@
+# Built application files
+*.apk
+*.ap_
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# Intellij
 *.iml
-.gradle
-/local.properties
-/.idea/caches
-/.idea/libraries
-/.idea/modules.xml
-/.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
-.DS_Store
-/build
-/captures
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/dictionaries
+.idea/libraries
+.idea/*
+app/.idea/
+
+# Allow Project Icons
+!.idea/icon.png
+!.idea/icon_dark.png
+
+# Mac
+*.DS_Store
+
+# Keystore files
+*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
 .externalNativeBuild
-.cxx
-local.properties
 
-*/build/
+# Google Services (e.g. APIs or Firebase)
+google-services.json
 
-/docs/dokka/
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json

module-unity/.gitignore

@@ -1,10 +1,23 @@
-# avoid publishing unity build to VS
+# Avoid publishing Unity build artifacts
 
-/build
+# Generated build files, not needed for source control
+build
 
-/symbols
-/src/main/assets/bin/Data/
-/src/main/assets/UnityServicesProjectConfiguration.json
-/src/main/Il2CppOutputProject/
-/src/main/jniLibs/
-/src/main/jniStaticLibs/
+# Debugging symbols, often large and unnecessary
+symbols
+
+# Contains generated data specific to the build
+src/main/assets/bin/Data/
+# Contains project-specific configuration, not essential for sharing
+src/main/assets/UnityServicesProjectConfiguration.json
+
+# IL2CPP generated code, not needed for development
+src/main/Il2CppOutputProject/
+
+# Native libraries, may contain platform-specific binaries
+src/main/jniLibs/
+# Static native libraries, same as jniLibs
+src/main/jniStaticLibs/
+
+# Build fingerprint, unique and not needed for sharing
+src/main/resources/META-INF/com.android.games.engine.build_fingerprint