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gabrielle-laucopybara-github
gabrielle-lau
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copybara-github
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Add catch the ball Android app
PiperOrigin-RevId: 830525875
1 parent 92db6e2 commit 5cda0a9

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-42
lines changed

‎android_env/apps/MODULE.bazel‎

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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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# Bazel dependencies for building Catch.
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module(
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name = "catch",
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version = "1.0",
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)
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bazel_dep(name = "rules_android", version = "0.6.6")
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bazel_dep(name = "rules_kotlin", version = "2.1.8")
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bazel_dep(name = "rules_jvm_external", version = "6.7")
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bazel_dep(name = "rules_robolectric", version = "4.16", repo_name = "robolectric")
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bazel_dep(name = "rules_java", version = "9.0.3")
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bazel_dep(name = "protobuf", version = "30.0")
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# To avoid conflict with different protobuf versions.
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single_version_override(
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module_name = "protobuf",
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version = "30.0",
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)
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maven = use_extension("@rules_jvm_external//:extensions.bzl", "maven")
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# Need to set testonly = True because the package depends on testonly targets.
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maven.artifact(
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testonly = True,
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artifact = "runner",
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group = "androidx.test",
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version = "1.7.0",
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)
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maven.artifact(
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testonly = True,
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artifact = "junit",
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group = "androidx.test.ext",
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version = "1.3.0",
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)
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maven.artifact(
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testonly = True,
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artifact = "mockito-kotlin",
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group = "org.mockito.kotlin",
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version = "6.1.0",
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)
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maven.install(
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artifacts = [
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"androidx.test.ext:junit:1.3.0",
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"androidx.test:runner:1.7.0",
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"com.google.guava:guava:32.0.1-jre",
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"com.google.truth:truth:1.4.0",
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"org.mockito.kotlin:mockito-kotlin:6.1.0",
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"org.mockito:mockito-core:5.20.0",
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"org.robolectric:robolectric:4.16",
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"org.yaml:snakeyaml:2.5",
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],
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repositories = [
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"https://maven.google.com",
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"https://repo1.maven.org/maven2",
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],
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)
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use_repo(maven, "maven")
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remote_android_extensions = use_extension(
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"@rules_android//bzlmod_extensions:android_extensions.bzl",
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"remote_android_tools_extensions",
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)
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use_repo(remote_android_extensions, "android_tools")
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android_sdk_repository_extension = use_extension("@rules_android//rules/android_sdk_repository:rule.bzl", "android_sdk_repository_extension")
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use_repo(android_sdk_repository_extension, "androidsdk")

‎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/BUILD.bazel‎

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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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# Classic RL task implemented as an Android app.
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load("@rules_android//rules:rules.bzl", "android_binary")
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load("@rules_kotlin//kotlin:android.bzl", "kt_android_library")
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package(
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default_visibility = [":catch_packages"],
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)
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package_group(
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name = "catch_packages",
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packages = [
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"//java/com/google/androidenv/catch/...",
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"//javatests/com/google/androidenv/catch/...",
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],
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)
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licenses(["notice"])
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android_binary(
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name = "app",
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manifest = "AndroidManifest.xml",
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multidex = "native",
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deps = [":MainActivity"],
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)
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kt_android_library(
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name = "GameLogic",
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srcs = ["GameLogic.kt"],
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deps = [
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"//java/com/google/androidenv/catch/sprite:Background",
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"//java/com/google/androidenv/catch/sprite:Ball",
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"//java/com/google/androidenv/catch/sprite:LineSegment",
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"//java/com/google/androidenv/catch/sprite:Paddle",
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],
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)
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kt_android_library(
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name = "GameLogicThread",
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srcs = ["GameLogicThread.kt"],
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deps = [
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":GameLogic",
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],
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)
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kt_android_library(
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name = "MainActivity",
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srcs = ["MainActivity.kt"],
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manifest = "AndroidManifest.xml",
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resource_files = glob(["res/**"]),
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deps = [
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":GameLogic",
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":GameLogicThread",
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":RenderThread",
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"//java/com/google/androidenv/catch/sprite:Background",
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"//java/com/google/androidenv/catch/sprite:Ball",
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"//java/com/google/androidenv/catch/sprite:Paddle",
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],
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)
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kt_android_library(
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name = "RenderThread",
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srcs = ["RenderThread.kt"],
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deps = [
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":GameLogic",
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],
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)

‎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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}

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