NetLogo like processing on Kotlin (needs kotlin-reflect.kt)

NetLogoDsl.kt

fun main(args: Array<String>) {
	setup()
}

var turtles = arrayOf<Turtle>()

infix inline fun <T : Turtle> T.ask(job: T.() -> Unit): Unit = job(this)

infix inline fun <T : Turtle> Array<T>.ask(job: T.() -> Unit): Unit {
	for (t in this) {
		job(t)
	}
}

var counter = 0

inline fun <reified T : Turtle> create(num: Int, init: T.() -> Unit): Unit {
	turtles = turtles.plus(Array(num, {
		var t = T::class.constructors.first().call(counter, "", Shapes.Turtle, 0.0, 0.0) // var t = T() is best...
		init(t)
		counter += 1
		t
	}))
}

fun setup() {
	create<Turtle>(5) {
		shape = Shapes.Circle
	}

	create<Turtle>(2) {
		shape = Shapes.Turtle
	}

	/*
	for (t in turtles) {
		println(t.who)
	}
	*/

	turtles ask {
		who += 10
		label = who.toString()
	}

	turtles[0] ask {
		who = 100
	}

	/*
	for (t in turtles) {
		println("${t.who} ; ${t.label} @ ${t.shape}")
	}
	*/
}

Classes.kt

class Turtle(var who: Int,
			 var label: String,
			 var shape: Shapes,
			 var x: Double,
			 var y: Double) {
}

enum class Shapes {
	Turtle,
	Circle
}