Create simple drop game

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2026-02-06 11:22:38 +00:00
parent 84958b2304
commit cbace1e07e
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# 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

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* text=auto eol=lf
*.bat text=auto eol=crlf

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## 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

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Exercises/Drop/README.md Normal file
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# 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.

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-feature android:glEsVersion="0x00020000" android:required="true"/>
<application
android:allowBackup="true"
android:fullBackupContent="true"
android:icon="@drawable/ic_launcher"
android:isGame="true"
android:appCategory="game"
android:label="@string/app_name"
tools:ignore="UnusedAttribute"
android:theme="@style/GdxTheme">
<activity
android:name="com.badlogic.drop.android.AndroidLauncher"
android:label="@string/app_name"
android:screenOrientation="landscape"
android:configChanges="keyboard|keyboardHidden|navigation|orientation|screenSize|screenLayout"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>

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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"

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# 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

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# 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

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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon
xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@color/ic_background_color"/>
<foreground android:drawable="@drawable/ic_launcher_foreground"/>
</adaptive-icon>

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android:viewportWidth="512"
android:viewportHeight="512">
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android:fillColor="#f30d0d"
android:strokeColor="#000000"/>
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android:strokeWidth="6.1"
android:fillColor="#f30d0d"
android:strokeColor="#000000"/>
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="ic_background_color">#F5A623FF</color>
<color name="background">#FFFFFFFF</color>
</resources>

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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Drop</string>
</resources>

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<resources>
<style name="GdxTheme" parent="android:Theme.Material.Light.NoActionBar.Fullscreen">
<item name="android:colorBackground">@color/background</item>
</style>
</resources>

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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.
})
}
}

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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'

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[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"
}
}

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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<KtxScreen>() {
override fun create() {
KtxAsync.initiate()
addScreen(FirstScreen())
setScreen<FirstScreen>()
}
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<Sprite> = 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
}
}
}

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# 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

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@@ -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

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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

248
Exercises/Drop/gradlew vendored Normal file
View File

@@ -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 "$JAVACMD" "$@"

93
Exercises/Drop/gradlew.bat vendored Normal file
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@@ -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

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@@ -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'