setup.gradle

Properties localProperties = new Properties()
project.ext.localProperties = localProperties

def propertiesFile = rootDir.toPath().resolve('local.properties').toFile()
if (propertiesFile.exists())
{
	propertiesFile.withDataInputStream {
		localProperties.load(it)
	}
	localProperties.entrySet().each {
		String[] property = [ it.getKey(), it.getValue() ]
		project.ext.setProperty(property[0], property[1])
		logger.info("Added project property ${property[0]}:${property[1]}")
	}
}
else if (!propertiesFile.createNewFile()) {
	throw new GradleException('Unable to create local.properties file in root directory')
}
else logger.warn('WARN: Empty local properties file created')

// directory containing a copy of Project Zomboid classes
project.ext.zomboidClassesDir = file("$buildDir/classes/zomboid").absoluteFile

if (project.ext.has('gameDir'))
{
	task zomboidClasses(type: Sync) {
		description 'Assembles zomboid classes.'
		group 'zomboid'
		includeEmptyDirs false
		from project.ext.gameDir
		include '**/*.class', 'stdlib.lbc'
		into zomboidClassesDir
	}
	compileJava.dependsOn(zomboidClasses)
	classes.dependsOn(zomboidClasses)
}
/**
 * Create game launch run configuration.
 * @param name run configuration name
 */
void createRunConfig(String name, ArrayList<String> format) {

	// translate config name to filename (similar to what IDEA is doing)
	def filename = name.replaceAll('\\s', '_').replaceAll('[^\\w_]', '').replaceAll("__", '_')

	// ensure that file parent directory exists
	def file = file("./.idea/runConfigurations/${filename}.xml")
	if (!file.parentFile.exists() && !file.parentFile.mkdirs()) {
		throw new IOException('Unable to create \'.idea/runConfigurations\' directory')
	}
	// write xml configuration to file
	file.withWriter {
		format.each { l -> it.writeLine(l) }
	}
}

tasks.register('generateLaunchRunConfigs') {

	it.description 'Create launch run configurations.'
	it.group 'build setup'

	it.onlyIf {
		project.ext.has('gameDir')
	}
	def agentJarPath = "${buildDir}/libs/${rootProject.name}-${rootProject.version}-agent.jar"
	createRunConfig('Launch Loader', [
			'<component name=\"ProjectRunConfigurationManager\">',
			'	<configuration default=\"false\" name=\"Launch Loader\" type=\"Application\"' +
					' factoryName=\"Application\">',
			'		<option name=\"MAIN_CLASS_NAME\" value=\"dev.weary.zomboid.Main\" />',
			"		<module name=\"${rootProject.name}.main\" />",
			"		<option name=\"PROGRAM_PARAMETERS\" value=\"--agent ${agentJarPath}\" />",
			'		<method v=\"2\">',
			'			<option name=\"Make\" enabled=\"true\" />',
			'		</method>',
			'	</configuration>',
			'</component>'
	])
	def zomboidVmParams = [
			'-Ddebug=0', '-Dzomboid.steam=1', '-Dzomboid.znetlog=1',
			'-XX:+UseConcMarkSweepGC', '-XX:-CreateMinidumpOnCrash',
			'-XX:-OmitStackTraceInFastThrow -Xms1800m -Xmx2048m'
	]
	createRunConfig('Launch Zomboid', [
			'<component name="ProjectRunConfigurationManager">',
			'	<configuration default="false" name="Launch Zomboid" type="Application" factoryName="Application">',
			'		<option name="MAIN_CLASS_NAME" value="zombie.gameStates.MainScreenState" />',
			"		<module name=\"${rootProject.name}.main\" />",
			"		<option name=\"VM_PARAMETERS\" value=\"${zomboidVmParams.join(' ')}\" />",
			"		<option name=\"WORKING_DIRECTORY\" value=\"${gameDir}\" />",
			'		<method v=\"2\">',
			'			<option name=\"Make\" enabled=\"true\" />',
			'		</method>',
  			'	</configuration>',
			'</component>'
	])
}