gdx-teaVM is a backend solution to run libgdx games in a web browser. It uses TeaVM behind the scene to convert Java/Kotlin bytecode to Javascript.

Note:

• Reflection support is very small so only reflection used in tests will work.
• teaVM does not support every class methods from java package or JNI native methods. Check teaVM java classes here.
• Kotlin discussions.
• Box2d, Bullet and freetype extension use emscripten to convert C++ to Javascript/WebAssembly. Box2d and Bullet use a custom parser (jParser) to help bind javascript code.

TeaVM Examples:

• gdx-tests
• demo-cubocy
• demo-superjumper
• test-freetype
• test-bullet-wasm
• test-box2d-wasm
• micronaut-libgdx-teavm
• 6dof-vehicle (source)

TeaVM Games:

• Age of Conquest (website)
• Retro Commander (website)

Setup:

// Add sonatype repository to Root gradle
repositories {
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
    maven { url "https://teavm.org/maven/repository/" }
}

gdxTeaVMVersion = "1.0.0-SNAPSHOT"

// In teaVM module
dependencies {
    implementation "com.github.xpenatan.gdx-teavm:backend-teavm:$project.gdxTeaVMVersion"

    // Bullet extension
    implementation "com.github.xpenatan.gdx-teavm:gdx-bullet-teavm:$project.gdxTeaVMVersion"
    // Box2D extension
    implementation "com.github.xpenatan.gdx-teavm:gdx-box2d-teavm:$project.gdxTeaVMVersion"
    // FreeType extension
    implementation "com.github.xpenatan.gdx-teavm:gdx-freetype-teavm:$project.gdxTeaVMVersion"
}

Supported Extensions:

• Box2D (WIP)¹
• Bullet Physics (WIP)²
• FreeType

¹: Box2D extension is WIP, please check if the class/method your game use is in webidl file. If not, you can use gdx-box2d-gwt.
²: Bullet extension is WIP, please check if the class/method your game use is in webidl file. This extension does not support some custom c++ code from libgdx bullet.

Generator:

A WIP standalone tool to convert your libgdx game in .jar or .class format to javascript. Example

Note: The compiled jar game should not be obfuscated.

Setup: TODO