DisplaySwitcher

#pragma strict

var next : KeyCode = KeyCode.RightArrow;
var previous : KeyCode = KeyCode.LeftArrow;

var disableObject: boolean = false;

private var current = 0;

private function SetRenderersEnabled(obj: Transform, enabled: boolean) {
	if (disableObject) {
		obj.gameObject.SetActive(enabled);
	} 
	else {
		for (var comp: Renderer in obj.GetComponentsInChildren(Renderer)) {
			comp.enabled = enabled;
		}
	}
}

private function ShowCurrent() {
	var currentObject = transform.GetChild(current);
	SetRenderersEnabled(currentObject, true);
}

private function ShowCurrentOnly() {
	HideAll();
	ShowCurrent();
}

private function HideAll() {
	for (var child : Transform in transform) {
		SetRenderersEnabled(child, false);
	}
}

private function ShowNext() {
	current = current + 1;
	if (current >= transform.childCount) current = 0;
	ShowCurrentOnly();
}

private function ShowPrevious() {
	current = current - 1;
	if (current < 0) current = transform.childCount - 1;
	ShowCurrentOnly();
}

function Awake() {
	ShowCurrentOnly();
}

function Update () {
	if (Input.GetKeyUp(next)) {
		ShowNext();
	} else if (Input.GetKeyUp(previous)) {
		ShowPrevious();
	}
}