plugin.xml

<?xml version='1.0' encoding='UTF-8'?>
<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0" id="cordova-plugin-game-center" version="0.4.2">
    <name>Game Center</name>
    <author>Lee Crossley (http://ilee.co.uk/)</author>
    <description>Cordova Game Center Plugin to utilise the iOS Game Center in your app.
        There is currently support for authentication, submitting a score to a leaderboard,
        displaying a native leaderboard and achievements.</description>
    <keywords>cordova, game, game center, gamecenter, leaderboard, player, achievements</keywords>
    <license>MIT</license>
    <engines>
        <engine name="cordova" version=">=3.0.0" />
    </engines>
    <js-module src="www/gamecenter.js" name="GameCenter">
        <clobbers target="gamecenter" />
    </js-module>
    <platform name="ios">
        <config-file target="config.xml" parent="/*">
            <feature name="GameCenter">
                <param name="ios-package" value="GameCenter" />
            </feature>
        </config-file>
        <header-file src="src/ios/GameCenter.h" />
        <source-file src="src/ios/GameCenter.m" />
        <framework src="GameKit.framework" />
    </platform>
</plugin>