diff --git a/Exercises/Drop/.editorconfig b/Exercises/Drop/.editorconfig
new file mode 100644
index 0000000..f6943b1
--- /dev/null
+++ b/Exercises/Drop/.editorconfig
@@ -0,0 +1,18 @@
+# https://editorconfig.org
+root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{java,scala,groovy,kt,kts}]
+indent_size = 4
+
+[*.gradle]
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/Exercises/Drop/.gitattributes b/Exercises/Drop/.gitattributes
new file mode 100644
index 0000000..05c96d8
--- /dev/null
+++ b/Exercises/Drop/.gitattributes
@@ -0,0 +1,2 @@
+* text=auto eol=lf
+*.bat text=auto eol=crlf
diff --git a/Exercises/Drop/.gitignore b/Exercises/Drop/.gitignore
new file mode 100644
index 0000000..b8796a9
--- /dev/null
+++ b/Exercises/Drop/.gitignore
@@ -0,0 +1,164 @@
+## Gradle:
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/lwjgl2/build/
+/lwjgl3/build/
+/html/build/
+/teavm/build/
+/ios/build/
+/ios-moe/build/
+/headless/build/
+/server/build/
+/shared/build/
+
+## Java:
+*.class
+*.war
+*.ear
+hs_err_pid*
+.attach_pid*
+
+## Android:
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+/android/out/
+local.properties
+com_crashlytics_export_strings.xml
+
+## Robovm:
+/ios/robovm-build/
+
+## iOS:
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM
+
+## GWT:
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+/html/war/WEB-INF/deploy/
+/html/war/WEB-INF/classes/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## TeaVM:
+# Not sure yet...
+
+## IntelliJ, Android Studio:
+.idea/
+*.ipr
+*.iws
+*.iml
+
+## Eclipse:
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/lwjgl2/bin/
+/lwjgl3/bin/
+/html/bin/
+/teavm/bin/
+/ios/bin/
+/ios-moe/bin/
+/headless/bin/
+/server/bin/
+/shared/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+
+## NetBeans:
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/lwjgl2/nbproject/private/
+/lwjgl3/nbproject/private/
+/html/nbproject/private/
+/teavm/nbproject/private/
+/ios/nbproject/private/
+/ios-moe/nbproject/private/
+/headless/nbproject/private/
+/server/nbproject/private/
+/shared/nbproject/private/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/lwjgl2/nbbuild/
+/lwjgl3/nbbuild/
+/html/nbbuild/
+/teavm/nbbuild/
+/ios/nbbuild/
+/ios-moe/nbbuild/
+/headless/nbbuild/
+/server/nbbuild/
+/shared/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/lwjgl2/dist/
+/lwjgl3/dist/
+/html/dist/
+/teavm/dist/
+/ios/dist/
+/ios-moe/dist/
+/headless/dist/
+/server/dist/
+/shared/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/lwjgl2/nbdist/
+/lwjgl3/nbdist/
+/html/nbdist/
+/teavm/nbdist/
+/ios/nbdist/
+/ios-moe/nbdist/
+/headless/nbdist/
+/server/nbdist/
+/shared/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## OS-Specific:
+.DS_Store
+Thumbs.db
+
+## Miscellaneous:
+*~
+*.*#
+*#*#
+/.kotlin/
+/assets/assets.txt
+
+## Special cases:
+
+## There is a resource-config.json file generated by nativeimage.gradle if you use Graal Native Image.
+## Some usage may need extra resource configuration in a different file with the same name.
+## You could also add that configuration to the text in nativeimage.gradle .
+## You should delete or comment out the next line if you have configuration in a different resource-config.json .
+**/resource-config.json
diff --git a/Exercises/Drop/README.md b/Exercises/Drop/README.md
new file mode 100644
index 0000000..8a1e988
--- /dev/null
+++ b/Exercises/Drop/README.md
@@ -0,0 +1,32 @@
+# Drop
+
+A [libGDX](https://libgdx.com/) project generated with [gdx-liftoff](https://github.com/libgdx/gdx-liftoff).
+
+This project was generated with a Kotlin project template that includes Kotlin application launchers and [KTX](https://libktx.github.io/) utilities.
+
+## Platforms
+
+- `core`: Main module with the application logic shared by all platforms.
+- `android`: Android mobile platform. Needs Android SDK.
+
+## Gradle
+
+This project uses [Gradle](https://gradle.org/) to manage dependencies.
+The Gradle wrapper was included, so you can run Gradle tasks using `gradlew.bat` or `./gradlew` commands.
+Useful Gradle tasks and flags:
+
+- `--continue`: when using this flag, errors will not stop the tasks from running.
+- `--daemon`: thanks to this flag, Gradle daemon will be used to run chosen tasks.
+- `--offline`: when using this flag, cached dependency archives will be used.
+- `--refresh-dependencies`: this flag forces validation of all dependencies. Useful for snapshot versions.
+- `android:lint`: performs Android project validation.
+- `build`: builds sources and archives of every project.
+- `cleanEclipse`: removes Eclipse project data.
+- `cleanIdea`: removes IntelliJ project data.
+- `clean`: removes `build` folders, which store compiled classes and built archives.
+- `eclipse`: generates Eclipse project data.
+- `idea`: generates IntelliJ project data.
+- `test`: runs unit tests (if any).
+
+Note that most tasks that are not specific to a single project can be run with `name:` prefix, where the `name` should be replaced with the ID of a specific project.
+For example, `core:clean` removes `build` folder only from the `core` project.
diff --git a/Exercises/Drop/android/AndroidManifest.xml b/Exercises/Drop/android/AndroidManifest.xml
new file mode 100644
index 0000000..68565b1
--- /dev/null
+++ b/Exercises/Drop/android/AndroidManifest.xml
@@ -0,0 +1,27 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Exercises/Drop/android/build.gradle b/Exercises/Drop/android/build.gradle
new file mode 100644
index 0000000..4ed5baf
--- /dev/null
+++ b/Exercises/Drop/android/build.gradle
@@ -0,0 +1,136 @@
+
+buildscript {
+ repositories {
+ mavenCentral()
+ google()
+ }
+}
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+android {
+ namespace = "com.badlogic.drop"
+ compileSdk = 35
+ sourceSets {
+ main {
+ manifest.srcFile 'AndroidManifest.xml'
+ java.setSrcDirs(['src/main/java', 'src/main/kotlin'])
+ aidl.setSrcDirs(['src/main/java', 'src/main/kotlin'])
+ renderscript.setSrcDirs(['src/main/java', 'src/main/kotlin'])
+ res.setSrcDirs(['res'])
+ assets.setSrcDirs(['../assets'])
+ jniLibs.setSrcDirs(['libs'])
+ }
+ }
+ packagingOptions {
+ resources {
+ excludes += ['META-INF/robovm/ios/robovm.xml', 'META-INF/DEPENDENCIES.txt', 'META-INF/DEPENDENCIES',
+ 'META-INF/dependencies.txt', '**/*.gwt.xml']
+ pickFirsts += ['META-INF/LICENSE.txt', 'META-INF/LICENSE', 'META-INF/license.txt', 'META-INF/LGPL2.1',
+ 'META-INF/NOTICE.txt', 'META-INF/NOTICE', 'META-INF/notice.txt']
+ }
+ }
+ defaultConfig {
+ applicationId 'com.badlogic.drop'
+ minSdkVersion 21
+ targetSdkVersion 35
+ versionCode 1
+ versionName "1.0"
+ }
+ compileOptions {
+ sourceCompatibility "8"
+ targetCompatibility "8"
+ coreLibraryDesugaringEnabled = true
+ }
+ buildTypes {
+ release {
+ minifyEnabled true
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+
+ kotlin.compilerOptions.jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_1_8)
+
+}
+
+repositories {
+ // needed for AAPT2, may be needed for other tools
+ google()
+}
+
+configurations { natives }
+
+dependencies {
+ coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.5'
+ implementation "com.badlogicgames.gdx:gdx-backend-android:$gdxVersion"
+ implementation project(':core')
+
+ natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-arm64-v8a"
+ natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi-v7a"
+ natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-x86"
+ natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-x86_64"
+ natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-arm64-v8a"
+ natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi-v7a"
+ natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86"
+ natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86_64"
+ natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-arm64-v8a"
+ natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a"
+ natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86"
+ natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86_64"
+
+}
+
+// Called every time gradle gets executed, takes the native dependencies of
+// the natives configuration, and extracts them to the proper libs/ folders
+// so they get packed with the APK.
+tasks.register('copyAndroidNatives') {
+ doFirst {
+ file("libs/armeabi-v7a/").mkdirs()
+ file("libs/arm64-v8a/").mkdirs()
+ file("libs/x86_64/").mkdirs()
+ file("libs/x86/").mkdirs()
+
+ configurations.natives.copy().files.each { jar ->
+ def outputDir = null
+ if(jar.name.endsWith("natives-armeabi-v7a.jar")) outputDir = file("libs/armeabi-v7a")
+ if(jar.name.endsWith("natives-arm64-v8a.jar")) outputDir = file("libs/arm64-v8a")
+ if(jar.name.endsWith("natives-x86_64.jar")) outputDir = file("libs/x86_64")
+ if(jar.name.endsWith("natives-x86.jar")) outputDir = file("libs/x86")
+ if(outputDir != null) {
+ copy {
+ from zipTree(jar)
+ into outputDir
+ include "*.so"
+ }
+ }
+ }
+ }
+}
+
+tasks.matching { it.name.contains("merge") && it.name.contains("JniLibFolders") }.configureEach { packageTask ->
+ packageTask.dependsOn 'copyAndroidNatives'
+}
+
+tasks.register('run', Exec) {
+ def path
+ def localProperties = project.file("../local.properties")
+ if (localProperties.exists()) {
+ Properties properties = new Properties()
+ localProperties.withInputStream { instr ->
+ properties.load(instr)
+ }
+ def sdkDir = properties.getProperty('sdk.dir')
+ if (sdkDir) {
+ path = sdkDir
+ } else {
+ path = "$System.env.ANDROID_SDK_ROOT"
+ }
+ } else {
+ path = "$System.env.ANDROID_SDK_ROOT"
+ }
+
+ def adb = path + "/platform-tools/adb"
+ commandLine "$adb", 'shell', 'am', 'start', '-n', 'com.badlogic.drop/com.badlogic.drop.android.AndroidLauncher'
+}
+
+eclipse.project.name = appName + "-android"
diff --git a/Exercises/Drop/android/ic_launcher-web.png b/Exercises/Drop/android/ic_launcher-web.png
new file mode 100644
index 0000000..67f2101
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diff --git a/Exercises/Drop/android/proguard-rules.pro b/Exercises/Drop/android/proguard-rules.pro
new file mode 100644
index 0000000..bdc29bd
--- /dev/null
+++ b/Exercises/Drop/android/proguard-rules.pro
@@ -0,0 +1,52 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+# https://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+-verbose
+
+-dontwarn android.support.**
+-dontwarn com.badlogic.gdx.backends.android.AndroidFragmentApplication
+
+# Needed by the gdx-controllers official extension.
+-keep class com.badlogic.gdx.controllers.android.AndroidControllers
+
+# Needed by the Box2D official extension.
+-keepclassmembers class com.badlogic.gdx.physics.box2d.World {
+ boolean contactFilter(long, long);
+ boolean getUseDefaultContactFilter();
+ void beginContact(long);
+ void endContact(long);
+ void preSolve(long, long);
+ void postSolve(long, long);
+ boolean reportFixture(long);
+ float reportRayFixture(long, float, float, float, float, float);
+}
+
+# You will need the next three lines if you use scene2d for UI or gameplay.
+# If you don't use scene2d at all, you can remove or comment out the next line:
+-keep public class com.badlogic.gdx.scenes.scene2d.** { *; }
+# You will need the next two lines if you use BitmapFont or any scene2d.ui text:
+-keep public class com.badlogic.gdx.graphics.g2d.BitmapFont { *; }
+# You will probably need this line in most cases:
+-keep public class com.badlogic.gdx.graphics.Color { *; }
+
+# These two lines are used with mapping files; see https://developer.android.com/build/shrink-code#retracing
+-keepattributes LineNumberTable,SourceFile
+-renamesourcefileattribute SourceFile
diff --git a/Exercises/Drop/android/project.properties b/Exercises/Drop/android/project.properties
new file mode 100644
index 0000000..746df33
--- /dev/null
+++ b/Exercises/Drop/android/project.properties
@@ -0,0 +1,14 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-rules.pro
+
+# Project target.
+target=android-21
diff --git a/Exercises/Drop/android/res/drawable-anydpi-v26/ic_launcher.xml b/Exercises/Drop/android/res/drawable-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..79ce5be
--- /dev/null
+++ b/Exercises/Drop/android/res/drawable-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
diff --git a/Exercises/Drop/android/res/drawable-anydpi-v26/ic_launcher_foreground.xml b/Exercises/Drop/android/res/drawable-anydpi-v26/ic_launcher_foreground.xml
new file mode 100644
index 0000000..8e1c344
--- /dev/null
+++ b/Exercises/Drop/android/res/drawable-anydpi-v26/ic_launcher_foreground.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
+
+
+
+
diff --git a/Exercises/Drop/android/res/drawable-hdpi/ic_launcher.png b/Exercises/Drop/android/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 0000000..36210f3
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diff --git a/Exercises/Drop/android/res/drawable-mdpi/ic_launcher.png b/Exercises/Drop/android/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 0000000..a81fdd1
Binary files /dev/null and b/Exercises/Drop/android/res/drawable-mdpi/ic_launcher.png differ
diff --git a/Exercises/Drop/android/res/drawable-xhdpi/ic_launcher.png b/Exercises/Drop/android/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..82a1b1d
Binary files /dev/null and b/Exercises/Drop/android/res/drawable-xhdpi/ic_launcher.png differ
diff --git a/Exercises/Drop/android/res/drawable-xxhdpi/ic_launcher.png b/Exercises/Drop/android/res/drawable-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..60f611c
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diff --git a/Exercises/Drop/android/res/drawable-xxxhdpi/ic_launcher.png b/Exercises/Drop/android/res/drawable-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..6a87b2d
Binary files /dev/null and b/Exercises/Drop/android/res/drawable-xxxhdpi/ic_launcher.png differ
diff --git a/Exercises/Drop/android/res/values/color.xml b/Exercises/Drop/android/res/values/color.xml
new file mode 100644
index 0000000..b3461fe
--- /dev/null
+++ b/Exercises/Drop/android/res/values/color.xml
@@ -0,0 +1,5 @@
+
+
+ #F5A623FF
+ #FFFFFFFF
+
diff --git a/Exercises/Drop/android/res/values/strings.xml b/Exercises/Drop/android/res/values/strings.xml
new file mode 100644
index 0000000..b66f2ed
--- /dev/null
+++ b/Exercises/Drop/android/res/values/strings.xml
@@ -0,0 +1,4 @@
+
+
+ Drop
+
diff --git a/Exercises/Drop/android/res/values/styles.xml b/Exercises/Drop/android/res/values/styles.xml
new file mode 100644
index 0000000..ef98b63
--- /dev/null
+++ b/Exercises/Drop/android/res/values/styles.xml
@@ -0,0 +1,5 @@
+
+
+
diff --git a/Exercises/Drop/android/src/main/kotlin/com/badlogic/drop/android/AndroidLauncher.kt b/Exercises/Drop/android/src/main/kotlin/com/badlogic/drop/android/AndroidLauncher.kt
new file mode 100644
index 0000000..5f6f1d9
--- /dev/null
+++ b/Exercises/Drop/android/src/main/kotlin/com/badlogic/drop/android/AndroidLauncher.kt
@@ -0,0 +1,18 @@
+package com.badlogic.drop.android
+
+import android.os.Bundle
+
+import com.badlogic.gdx.backends.android.AndroidApplication
+import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration
+import com.badlogic.drop.Main
+
+/** Launches the Android application. */
+class AndroidLauncher : AndroidApplication() {
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ initialize(Main(), AndroidApplicationConfiguration().apply {
+ // Configure your application here.
+ useImmersiveMode = true // Recommended, but not required.
+ })
+ }
+}
diff --git a/Exercises/Drop/assets/background.png b/Exercises/Drop/assets/background.png
new file mode 100644
index 0000000..245d5c8
Binary files /dev/null and b/Exercises/Drop/assets/background.png differ
diff --git a/Exercises/Drop/assets/bucket.png b/Exercises/Drop/assets/bucket.png
new file mode 100644
index 0000000..1c2052c
Binary files /dev/null and b/Exercises/Drop/assets/bucket.png differ
diff --git a/Exercises/Drop/assets/drop.mp3 b/Exercises/Drop/assets/drop.mp3
new file mode 100644
index 0000000..6328488
Binary files /dev/null and b/Exercises/Drop/assets/drop.mp3 differ
diff --git a/Exercises/Drop/assets/drop.png b/Exercises/Drop/assets/drop.png
new file mode 100644
index 0000000..e7fc582
Binary files /dev/null and b/Exercises/Drop/assets/drop.png differ
diff --git a/Exercises/Drop/assets/logo.png b/Exercises/Drop/assets/logo.png
new file mode 100644
index 0000000..e6d211e
Binary files /dev/null and b/Exercises/Drop/assets/logo.png differ
diff --git a/Exercises/Drop/assets/music.mp3 b/Exercises/Drop/assets/music.mp3
new file mode 100644
index 0000000..7f0ba07
Binary files /dev/null and b/Exercises/Drop/assets/music.mp3 differ
diff --git a/Exercises/Drop/build.gradle b/Exercises/Drop/build.gradle
new file mode 100644
index 0000000..dd346a7
--- /dev/null
+++ b/Exercises/Drop/build.gradle
@@ -0,0 +1,74 @@
+buildscript {
+ repositories {
+ mavenCentral()
+ gradlePluginPortal()
+ mavenLocal()
+ google()
+ maven { url = 'https://central.sonatype.com/repository/maven-snapshots/' }
+ }
+ dependencies {
+ classpath 'com.android.tools.build:gradle:8.13.2'
+ classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
+
+ }
+}
+
+allprojects {
+ apply plugin: 'eclipse'
+ apply plugin: 'idea'
+
+ // This allows you to "Build and run using IntelliJ IDEA", an option in IDEA's Settings.
+ idea {
+ module {
+ outputDir = file('build/classes/java/main')
+ testOutputDir = file('build/classes/java/test')
+ }
+ }
+}
+
+configure(subprojects - project(':android')) {
+ apply plugin: 'java-library'
+ apply plugin: 'kotlin'
+ java.sourceCompatibility = 8
+
+ // From https://lyze.dev/2021/04/29/libGDX-Internal-Assets-List/
+ // The article can be helpful when using assets.txt in your project.
+ tasks.register('generateAssetList') {
+ inputs.dir("${project.rootDir}/assets/")
+ // projectFolder/assets
+ File assetsFolder = new File("${project.rootDir}/assets/")
+ // projectFolder/assets/assets.txt
+ File assetsFile = new File(assetsFolder, "assets.txt")
+ // delete that file in case we've already created it
+ assetsFile.delete()
+
+ // iterate through all files inside that folder
+ // convert it to a relative path
+ // and append it to the file assets.txt
+ fileTree(assetsFolder).collect { assetsFolder.relativePath(it) }.sort().each {
+ assetsFile.append(it + "\n")
+ }
+ }
+ processResources.dependsOn 'generateAssetList'
+
+ compileJava {
+ options.incremental = true
+ }
+ compileKotlin.compilerOptions.jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_1_8)
+ compileTestKotlin.compilerOptions.jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_1_8)
+
+}
+
+subprojects {
+ version = "$projectVersion"
+ ext.appName = 'Drop'
+ repositories {
+ mavenCentral()
+ // You may want to remove the following line if you have errors downloading dependencies.
+ mavenLocal()
+ maven { url = 'https://central.sonatype.com/repository/maven-snapshots/' }
+ maven { url = 'https://jitpack.io' }
+ }
+}
+
+eclipse.project.name = 'Drop' + '-parent'
diff --git a/Exercises/Drop/core/build.gradle b/Exercises/Drop/core/build.gradle
new file mode 100644
index 0000000..e7decbf
--- /dev/null
+++ b/Exercises/Drop/core/build.gradle
@@ -0,0 +1,43 @@
+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+eclipse.project.name = appName + '-core'
+
+dependencies {
+ api "com.badlogicgames.ashley:ashley:$ashleyVersion"
+ api "com.badlogicgames.gdx:gdx-ai:$aiVersion"
+ api "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
+ api "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
+ api "com.badlogicgames.gdx:gdx:$gdxVersion"
+ api "com.kotcrab.vis:vis-ui:$visUiVersion"
+ api "io.github.libktx:ktx-actors:$ktxVersion"
+ api "io.github.libktx:ktx-ai:$ktxVersion"
+ api "io.github.libktx:ktx-app:$ktxVersion"
+ api "io.github.libktx:ktx-artemis:$ktxVersion"
+ api "io.github.libktx:ktx-ashley:$ktxVersion"
+ api "io.github.libktx:ktx-assets-async:$ktxVersion"
+ api "io.github.libktx:ktx-assets:$ktxVersion"
+ api "io.github.libktx:ktx-async:$ktxVersion"
+ api "io.github.libktx:ktx-box2d:$ktxVersion"
+ api "io.github.libktx:ktx-collections:$ktxVersion"
+ api "io.github.libktx:ktx-freetype-async:$ktxVersion"
+ api "io.github.libktx:ktx-freetype:$ktxVersion"
+ api "io.github.libktx:ktx-graphics:$ktxVersion"
+ api "io.github.libktx:ktx-i18n:$ktxVersion"
+ api "io.github.libktx:ktx-inject:$ktxVersion"
+ api "io.github.libktx:ktx-json:$ktxVersion"
+ api "io.github.libktx:ktx-log:$ktxVersion"
+ api "io.github.libktx:ktx-math:$ktxVersion"
+ api "io.github.libktx:ktx-preferences:$ktxVersion"
+ api "io.github.libktx:ktx-reflect:$ktxVersion"
+ api "io.github.libktx:ktx-scene2d:$ktxVersion"
+ api "io.github.libktx:ktx-style:$ktxVersion"
+ api "io.github.libktx:ktx-tiled:$ktxVersion"
+ api "io.github.libktx:ktx-vis-style:$ktxVersion"
+ api "io.github.libktx:ktx-vis:$ktxVersion"
+ api "net.onedaybeard.artemis:artemis-odb:$artemisOdbVersion"
+ api "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVersion"
+ api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlinxCoroutinesVersion"
+
+ if(enableGraalNative == 'true') {
+ implementation "io.github.berstanio:gdx-svmhelper-annotations:$graalHelperVersion"
+ }
+}
diff --git a/Exercises/Drop/core/src/main/kotlin/com/badlogic/drop/Main.kt b/Exercises/Drop/core/src/main/kotlin/com/badlogic/drop/Main.kt
new file mode 100644
index 0000000..88d0b95
--- /dev/null
+++ b/Exercises/Drop/core/src/main/kotlin/com/badlogic/drop/Main.kt
@@ -0,0 +1,138 @@
+package com.badlogic.drop
+
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.Gdx.audio
+import com.badlogic.gdx.audio.Music
+import com.badlogic.gdx.audio.Sound
+import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.Texture
+import com.badlogic.gdx.graphics.Texture.TextureFilter.Linear
+import com.badlogic.gdx.graphics.g2d.Sprite
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import com.badlogic.gdx.math.MathUtils
+import com.badlogic.gdx.math.Rectangle
+import com.badlogic.gdx.math.Vector2
+import com.badlogic.gdx.utils.ScreenUtils
+import com.badlogic.gdx.utils.viewport.FitViewport
+import ktx.app.KtxGame
+import ktx.app.KtxScreen
+import ktx.assets.disposeSafely
+import ktx.assets.toInternalFile
+import ktx.async.KtxAsync
+import ktx.graphics.use
+
+class Main : KtxGame() {
+ override fun create() {
+ KtxAsync.initiate()
+
+ addScreen(FirstScreen())
+ setScreen()
+ }
+ class FirstScreen : KtxScreen {
+ private val backgroundTexture: Texture = Texture("background.png".toInternalFile(), true).apply { setFilter(Linear, Linear) }
+ private val bucketTexture: Texture = Texture("bucket.png".toInternalFile(), true).apply { setFilter(Linear, Linear) }
+ private val dropTexture: Texture = Texture("drop.png".toInternalFile(), true).apply { setFilter(Linear, Linear) }
+
+ private val dropSound: Sound = audio.newSound("drop.mp3".toInternalFile())
+ private val music: Music = audio.newMusic("music.mp3".toInternalFile()).apply {
+ isLooping = true
+ volume = 0.5f
+ play()
+ }
+
+ private val bucketSprite: Sprite = Sprite(bucketTexture).apply { setSize(1f, 1f) }
+
+ private val image = Texture("logo.png".toInternalFile(), true).apply { setFilter(Linear, Linear) }
+ private val batch = SpriteBatch()
+ private val viewport = FitViewport(8f, 5f)
+
+ private var touchPos: Vector2 = Vector2()
+
+ private var dropletSpriteList: MutableList = mutableListOf()
+
+ private var dropTimer: Float = 0f
+
+ private val bucketRectangle: Rectangle = Rectangle()
+ private val dropletRectangle: Rectangle = Rectangle()
+
+ override fun resize(width: Int, height: Int) {
+ viewport.update(width, height, true)
+ }
+
+ override fun render(delta: Float) {
+ input()
+ logic()
+ draw()
+ }
+
+ override fun dispose() {
+ image.disposeSafely()
+ batch.disposeSafely()
+ }
+
+ private fun input() {
+ if (Gdx.input.isTouched) {
+ touchPos.set(Gdx.input.x.toFloat(), Gdx.input.y.toFloat())
+ viewport.unproject(touchPos)
+ bucketSprite.setCenterX(touchPos.x)
+ }
+ }
+
+ private fun logic() {
+ val worldWidth: Float = viewport.worldWidth
+
+ bucketSprite.x = MathUtils.clamp(bucketSprite.x, 0f, worldWidth - bucketSprite.width)
+
+ val delta: Float = Gdx.graphics.deltaTime
+ bucketRectangle.set(bucketSprite.x, bucketSprite.y, bucketSprite.width, bucketSprite.height)
+
+ for (sprite in dropletSpriteList.reversed()) {
+ sprite.translateY(-2f * delta)
+
+ dropletRectangle.set(sprite.x, sprite.y, sprite.width, sprite.height)
+
+ if (sprite.y < -sprite.height) dropletSpriteList.remove(sprite)
+ else if (bucketRectangle.overlaps(dropletRectangle)) {
+ dropletSpriteList.remove(sprite)
+ dropSound.play()
+ }
+ }
+
+ dropTimer += delta
+ if (dropTimer >= 1f)
+ {
+ dropTimer = 0f
+ dropletSpriteList.add(createDroplet())
+ }
+ //Gdx.app.log("Droplets", dropletSpriteList.size.toString() + " in List")
+ }
+
+ private fun draw() {
+ ScreenUtils.clear(Color.BLACK)
+ viewport.apply()
+ batch.setProjectionMatrix(viewport.camera.combined)
+ batch.use {
+ it.draw(backgroundTexture, 0f, 0f, viewport.worldWidth, viewport.worldHeight)
+ for (s in dropletSpriteList) {
+ s.draw(it)
+ }
+ bucketSprite.draw(it)
+ }
+ }
+
+ private fun createDroplet(): Sprite {
+ val dropWidth: Float = 1f
+ val dropHeight: Float = 1f
+ val worldWidth: Float = viewport.worldWidth
+ val worldHeight: Float = viewport.worldHeight
+
+ val dropSprite: Sprite = Sprite(dropTexture).apply {
+ setSize(dropWidth, dropHeight)
+ x = MathUtils.random(0f, worldWidth - dropWidth)
+ y = worldHeight //- dropHeight // Spawn droplet above world for cleaner transition in?
+ } // We don't add the object to the set here because apply is really meant for doing stuff with members
+
+ return dropSprite
+ }
+ }
+}
diff --git a/Exercises/Drop/gradle.properties b/Exercises/Drop/gradle.properties
new file mode 100644
index 0000000..bca1091
--- /dev/null
+++ b/Exercises/Drop/gradle.properties
@@ -0,0 +1,27 @@
+# This doesn't need to be false, and some projects may be able to take advantage of setting daemon to true.
+# We set it to false by default in order to avoid too many daemons from being created and persisting; each needs RAM.
+org.gradle.daemon=false
+# Sets starting memory usage to 512MB, maximum memory usage to 1GB, and tries to set as much to use Unicode as we can.
+org.gradle.jvmargs=-Xms512M -Xmx1G -Dfile.encoding=UTF-8 -Dconsole.encoding=UTF-8
+# "Configure on-demand" must be false because it breaks projects that have Android modules. The default is also false.
+org.gradle.configureondemand=false
+# The logging level determines which messages get shown about how Gradle itself is working, such as if build.gradle
+# files are fully future-proof (which they never are, because Gradle constantly deprecates working APIs).
+# You can change 'quiet' below to 'lifecycle' to use Gradle's default behavior, which shows some confusing messages.
+# You could instead change 'quiet' below to 'info' to see info that's important mainly while debugging build files.
+# Note that if you want to use Gradle Build Scans, you should set the below logging level to 'lifecycle', otherwise
+# the link to the scan won't get shown at all.
+# Documented at: https://docs.gradle.org/current/userguide/command_line_interface.html#sec:command_line_logging
+org.gradle.logging.level=quiet
+ktxVersion=1.13.1-rc1
+kotlinVersion=2.2.21
+artemisOdbVersion=2.3.0
+aiVersion=1.8.2
+ashleyVersion=1.7.4
+kotlinxCoroutinesVersion=1.8.1
+visUiVersion=1.5.7
+android.useAndroidX=true
+android.enableR8.fullMode=false
+enableGraalNative=false
+gdxVersion=1.14.0
+projectVersion=1.0.0
diff --git a/Exercises/Drop/gradle/gradle-daemon-jvm.properties b/Exercises/Drop/gradle/gradle-daemon-jvm.properties
new file mode 100644
index 0000000..368b932
--- /dev/null
+++ b/Exercises/Drop/gradle/gradle-daemon-jvm.properties
@@ -0,0 +1,12 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73c462e34475aeb6509ab7ba3eda218f/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/54001d0b636ad500b432d20ef3d580d0/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73c462e34475aeb6509ab7ba3eda218f/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/54001d0b636ad500b432d20ef3d580d0/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/29c55e6bad8a0049163f0184625cecd9/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/3ac7a5361c25c0b23d933f44bdb0abd9/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73c462e34475aeb6509ab7ba3eda218f/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/54001d0b636ad500b432d20ef3d580d0/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/28937bb8a7f83f57de92429a9a11c04e/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/52fa104f4f641439587f75dd68b31bc2/redirect
+toolchainVersion=17
diff --git a/Exercises/Drop/gradle/wrapper/gradle-wrapper.jar b/Exercises/Drop/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..48f576e
Binary files /dev/null and b/Exercises/Drop/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/Exercises/Drop/gradle/wrapper/gradle-wrapper.properties b/Exercises/Drop/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..5892cb8
--- /dev/null
+++ b/Exercises/Drop/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/Exercises/Drop/gradlew b/Exercises/Drop/gradlew
new file mode 100644
index 0000000..36a4e24
--- /dev/null
+++ b/Exercises/Drop/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+# Gradle start up script for POSIX generated by Gradle.
+#
+# Important for running:
+#
+# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+# noncompliant, but you have some other compliant shell such as ksh or
+# bash, then to run this script, type that shell name before the whole
+# command line, like:
+#
+# ksh Gradle
+#
+# Busybox and similar reduced shells will NOT work, because this script
+# requires all of these POSIX shell features:
+# * functions;
+# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+# * compound commands having a testable exit status, especially «case»;
+# * various built-in commands including «command», «set», and «ulimit».
+#
+# Important for patching:
+#
+# (2) This script targets any POSIX shell, so it avoids extensions provided
+# by Bash, Ksh, etc; in particular arrays are avoided.
+#
+# The "traditional" practice of packing multiple parameters into a
+# space-separated string is a well documented source of bugs and security
+# problems, so this is (mostly) avoided, by progressively accumulating
+# options in "$@", and eventually passing that to Java.
+#
+# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+# see the in-line comments for details.
+#
+# There are tweaks for specific operating systems such as AIX, CygWin,
+# Darwin, MinGW, and NonStop.
+#
+# (3) This script is generated from the Groovy template
+# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+# within the Gradle project.
+#
+# You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+ APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
+ [ -h "$app_path" ]
+do
+ ls=$( ls -ld "$app_path" )
+ link=${ls#*' -> '}
+ case $link in #(
+ /*) app_path=$link ;; #(
+ *) app_path=$APP_HOME$link ;;
+ esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&2
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in #(
+ CYGWIN* ) cygwin=true ;; #(
+ Darwin* ) darwin=true ;; #(
+ MSYS* | MINGW* ) msys=true ;; #(
+ NONSTOP* ) nonstop=true ;;
+esac
+
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD=$JAVA_HOME/jre/sh/java
+ else
+ JAVACMD=$JAVA_HOME/bin/java
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ ulimit -n "$MAX_FD" ||
+ warn "Could not set maximum file descriptor limit to $MAX_FD"
+ esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+# * args from the command line
+# * the main class name
+# * -classpath
+# * -D...appname settings
+# * --module-path (only if needed)
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+ APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+
+ JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ for arg do
+ if
+ case $arg in #(
+ -*) false ;; # don't mess with options #(
+ /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
+ [ -e "$t" ] ;; #(
+ *) false ;;
+ esac
+ then
+ arg=$( cygpath --path --ignore --mixed "$arg" )
+ fi
+ # Roll the args list around exactly as many times as the number of
+ # args, so each arg winds up back in the position where it started, but
+ # possibly modified.
+ #
+ # NB: a `for` loop captures its iteration list before it begins, so
+ # changing the positional parameters here affects neither the number of
+ # iterations, nor the values presented in `arg`.
+ shift # remove old arg
+ set -- "$@" "$arg" # push replacement arg
+ done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+# and any embedded shellness will be escaped.
+# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+# treated as '${Hostname}' itself on the command line.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+ "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+ die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+# set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+ printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+ xargs -n1 |
+ sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+ tr '\n' ' '
+ )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/Exercises/Drop/gradlew.bat b/Exercises/Drop/gradlew.bat
new file mode 100644
index 0000000..09276e8
--- /dev/null
+++ b/Exercises/Drop/gradlew.bat
@@ -0,0 +1,93 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/Exercises/Drop/settings.gradle b/Exercises/Drop/settings.gradle
new file mode 100644
index 0000000..5e987e7
--- /dev/null
+++ b/Exercises/Drop/settings.gradle
@@ -0,0 +1,8 @@
+plugins {
+ // Applies the foojay-resolver plugin to allow automatic download of JDKs.
+ id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
+}
+// A list of which subprojects to load as part of the same larger project.
+// You can remove Strings from the list and reload the Gradle project
+// if you want to temporarily disable a subproject.
+include 'android', 'core'