var n:uint = 2;
var usiSaku:UsiSaku = new UsiSaku();
addChild(usiSaku);
for(var i:uint = 0; i < n; i++){
	var animal_name:String = "usi"+i;
	var animal:UsiClip = new UsiClip();
	usiSaku.addChild(animal);
	animal.name = animal_name;
	animal.x = 100*i;
}

var animalInstance:MovieClip = new MovieClip();
getDefinitionByName("flash.display.MovieClip").addChild(animalInstance);

var saku_array:Array = new Array("Usi","Buta","Yagi","Hitsuzi");

// SakuAdd(saku_array[0]);  // 柵を配置
var saku_mc:MovieClip = SakuAdd(saku_array[0]);
// AnimalAdd(saku_array[0],1);  // 動物を配置
AnimalAdd(saku_array[0], 1, saku_mc);

// function SakuAdd( saku_name ):void {
function SakuAdd( saku_name:String ):MovieClip {
	var sakuClass:Class = Class(getDefinitionByName(saku_name + "Saku"));
	var sakuInstance:MovieClip = new sakuClass();
	addChild(sakuInstance);
	// sakuInstance.name = saku_name + "Saku";
	return sakuInstance;
}

// function AnimalAdd( animal_name, animal_num ):void {
function AnimalAdd( animal_name:String, animal_num:int, saku_mc:MovieClip ):void {
	for (var i:int = 0; i < animal_num; i++) {
		var animalClass:Class = Class(getDefinitionByName(animal_name));
		var animalInstance:MovieClip = new animalClass();
		// getDefinitionByName(animal_name + "Saku").addChild(animalInstance);
		saku_mc.addChild(animalInstance);
		// animalInstance.name = animal_name + i;
	}
}