build.xml

<?xml version="1.0"?>
<project name="Minicraft" default="jar">

  <!-- Project configuration -->
  <property name="main.class" value="com.mojang.ld22.Game"/>
  <property name="base.name" value="minicraft"/>

  <!-- Directory Layout -->
  <property name="src.dir" value="src"/>
  <property name="res.dir" value="res"/>
  <property name="build.dir" value="build"/>
  <property name="dist.dir" value="dist"/>

  <!-- Targets -->

  <target name="compile" description="Compile all sources.">
    <mkdir dir="${dist.dir}"/>
    <mkdir dir="${build.dir}/classes"/>
    <javac srcdir="${src.dir}" destdir="${build.dir}/classes"
           optimize="on" debug="on" deprecation="on" includeantruntime="no">
      <compilerarg value="-Xlint"/>
    </javac>
    <copy todir="${build.dir}/classes">
      <fileset dir="${res.dir}"/>
    </copy>
  </target>

  <target name="jar" depends="compile" description="Create the distributables.">
    <jar destfile="${dist.dir}/${base.name}.jar"
         basedir="${build.dir}/classes">
      <manifest>
        <attribute name="Main-Class" value="${main.class}"/>
      </manifest>
    </jar>
  </target>

  <target name="run" depends="compile"
          description="Run the application in hotswap mode.">
    <java classname="${main.class}" classpath="${build.dir}/classes"
          fork="true">
      <jvmarg line="-Xdebug -Xrunjdwp:transport=dt_socket,address=9000,server=y,suspend=n"/>
    </java>
  </target>

  <target name="hotswap" depends="compile" description="Replace running code.">
    <taskdef name="hotswap" classname="dak.ant.taskdefs.Hotswap"/>
    <hotswap verbose="true" port="9000">
      <fileset dir="${build.dir}/classes" includes="**/*.class">
        <modified/>
      </fileset>
    </hotswap>
  </target>

  <target name="clean" description="Delete all generated files.">
    <delete dir="${build.dir}"/>
    <delete dir="${dist.dir}"/>
  </target>
</project>