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‎android_env/apps/java/com/google/androidenv/accessibilityforwarder/AndroidManifest.xml‎

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// Copyright 2025 DeepMind Technologies Limited.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright 2025 DeepMind Technologies Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.-->
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.google.androidenv.accessibilityforwarder">

‎android_env/apps/java/com/google/androidenv/accessibilityforwarder/AndroidManifest_lite.xml‎

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// Copyright 2025 DeepMind Technologies Limited.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright 2025 DeepMind Technologies Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.-->
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.google.androidenv.accessibilityforwarder">

‎android_env/apps/java/com/google/androidenv/accessibilityforwarder/res/xml/accessibility_forwarder_service.xml‎

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// Copyright 2025 DeepMind Technologies Limited.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright 2025 DeepMind Technologies Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.-->
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<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
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android:accessibilityEventTypes="typeAllMask"

‎android_env/apps/java/com/google/androidenv/catch/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright 2025 DeepMind Technologies Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.-->
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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package="com.google.androidenv.catch">
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<uses-sdk android:minSdkVersion="26"
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android:targetSdkVersion="35"/>
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<application
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android:allowBackup="false"
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android:label="@string/app_name"
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android:supportsRtl="false"
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android:taskAffinity=""
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tools:ignore="AllowBackup">
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<activity
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android:name=".MainActivity"
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android:configChanges="orientation|keyboardHidden|screenSize"
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android:exported="true"
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android:hardwareAccelerated="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎android_env/apps/java/com/google/androidenv/catch/GameLogic.kt‎

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// Copyright 2025 DeepMind Technologies Limited.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.androidenv.catch
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import android.graphics.Canvas
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import android.view.MotionEvent
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import com.google.androidenv.catch.sprite.Background
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import com.google.androidenv.catch.sprite.Ball
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import com.google.androidenv.catch.sprite.LineSegment
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import com.google.androidenv.catch.sprite.Paddle
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import java.time.Duration
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import java.time.Instant
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import kotlin.random.Random
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/** The class that contains the game logic. */
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open class GameLogic(
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// Expected number of frames per second.
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fps: Int = 60,
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// Pseudo random number generator.
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private val rand: Random = Random.Default,
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// Width and height of the game in pixels.
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private val width: Int,
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private val height: Int,
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// UI objects in the game.
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private var background: Background = Background(),
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private var ball: Ball = Ball(maxX = width, maxY = height, rand = rand),
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private var paddle: Paddle = Paddle(maxX = width, y = height),
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) {
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private val sleepTime: Duration = Duration.ofMillis((1000.0 / fps).toLong())
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/** Reinitializes the state of the game. */
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// Need to make this open to allow for testing.
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open fun reset() {
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this.ball.reset()
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}
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/** Runs one "throw" of a [ball] that needs to be caught by the [paddle]. */
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// Need to make this open to allow for testing.
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open fun run(): Boolean {
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var lastTimestamp = Instant.now()
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do {
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Thread.sleep(sleepTime.toMillis())
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val now = Instant.now()
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val interval = Duration.between(lastTimestamp, now)
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lastTimestamp = now
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ball.update(interval)
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} while (!ball.isOutOfBounds())
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return ball.intersects(LineSegment(paddle.topLeft(), paddle.topRight()))
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}
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/** Processes a user event (e.g. a touchscreen event) and updates the [paddle] accordingly. */
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fun handleTouch(event: MotionEvent) {
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paddle.x = event.x.toInt()
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}
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/** Renders the game on [c]. */
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open fun render(c: Canvas) {
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background.draw(c)
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ball.draw(c)
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paddle.draw(c)
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}
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}

‎android_env/apps/java/com/google/androidenv/catch/GameLogicThread.kt‎

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// Copyright 2025 DeepMind Technologies Limited.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.androidenv.catch
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import android.util.Log
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/** A thread that continuously runs the game logic, resetting after each internal [run()]. */
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class GameLogicThread(private val game: GameLogic, private val loggingTag: String) : Thread() {
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/** Whether this thread should continuously run. */
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private var shouldRun: Boolean = true
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/** A counter of game runs. */
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private var counter: Int = 0
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/**
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* Lets the current [run()] iteration complete then break exit this [Thread].
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*
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* Notice that [shouldRun] cannot have a private getter with a public setter (please see
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* https://youtrack.jetbrains.com/issue/KT-3110 for details), hence this public function. Also
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* notice that we cannot call this function [stop()] since it would shadow [Thread.stop()].
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*/
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public fun finish() {
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shouldRun = false
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}
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/** Continuously runs the [game] until [finish()] is called. */
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public override fun run() {
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while (shouldRun) {
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game.reset()
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Log.i(loggingTag, "${counter++} - ${game.run()}")
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}
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}
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}

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