Triple Play is a collection of game-related utility classes that can be used with the PlayN library on all of its myriad platform targets.

Various documentation-like-things are available:

• Release Notes
• A demo of the UI toolkit
• API documentation

The library is built using Maven or SBT.

Invoke mvn install to build and install the library to your local Maven repository (i.e. ~/.m2/repository).

Invoke sbt publish-local to build and install the library to your local Ivy repository (i.e. ~/.ivy2/local).

To add a Triple Play dependency to a Maven project, add the following to your pom.xml:

<dependencies>
  <dependency>
    <groupId>com.threerings</groupId>
    <artifactId>tripleplay</artifactId>
    <version>${playn.version}</version>
  </dependency>
</dependencies>

When using Triple Play in a PlayN game that targets the HTML5 or Flash backends, you must make some additional changes.

Add the following to your html/pom.xml (and/or flash/pom.xml):

<dependencies>
  <dependency>
    <groupId>com.threerings</groupId>
    <artifactId>tripleplay</artifactId>
    <version>${playn.version}</version>
    <classifier>sources</classifier>
  </dependency>
</dependencies>

Add a reference to the Triple Play GWT module to your FooGame.gwt.xml file, like so:

<inherits name="tripleplay.TriplePlay"/>

Finally modify the gwt-maven-plugin to override disableClassMetadata which PlayN enables by default:

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>gwt-maven-plugin</artifactId>
  <configuration>
    <disableClassMetadata>false</disableClassMetadata>
  </configuration>
  ...
</plugin>

Triple Play is released under the New BSD License. The most recent version of the library is available at https://github.com/threerings/tripleplay

Questions, comments, and other worldly endeavors can be handled via the Three Rings Libraries Google Group.