package io.sarl.demos.sierpinski.objects

import java.util.List
import java.util.ArrayList
import java.util.Collections

/*
 * Object referencing every Fractal position
 * Used by the GUI for printing in canvas
 */
public class Positions {
	private var frac: List<Triangle>
	
	new (){
		frac = new ArrayList
	}
	
	public def addTriangle(t: Triangle){
		synchronized(frac){frac.add(t)}
	}
	
	public def getTriangles(): List<Triangle>  {
		synchronized(frac){return Collections.unmodifiableList(frac)}
	}
}