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// min and max times for type change
public var minTypeChange : int = 10;
public var maxTypeChange : int = 30;

//min and max rotatio speed
public var minRotationSpeed : float = 0.5;
public var maxRotationSpeed : float = 2.0;

//calculated rotation speed
private var rotationSpeed : float;

//textfield to hold the score and score variable
private var textfield : GUIText;
private var score : int;
public var Pickup : GameObject;
private var SpawnPickup : GameObject;
private var spawnIndexAvailableList;
private var PickupCollected;

function UpdateScoreText()
{
	//update textfield with score
	textfield.text = score.ToString();
}

function Update()
{
	// rotate the gameobject every frame
	transform.Rotate(rotationSpeed, rotationSpeed, 0);
}

function Start()
{
	while (true)
	{
		//wait for x seconds
		yield WaitForSeconds(Random.Range(minTypeChange, maxTypeChange));
		// set a random type
		SwapType();
	}
}

function Awake()
{
	textfield = GameObject.Find("GUI/txt-Score").GetComponent(GUIText);
	score = 0;
	UpdateScoreText();

	// calculate a random rotation speed
	rotationSpeed = Random.Range(minRotationSpeed, maxRotationSpeed);

	// set a random type to begin
	SwapType();
}

function SwapType()
{
	// generate a random number between 1 and 10
	var random : float = Random.Range(1, 10);

	// set the type
	if (random <= 5) // 50% for type 1
	{
		type = 1;
	}

	else if (random <= 8) // 30% for type 2
	{
		type = 2;
	}

	else // 20% for type 3
	{
		type = 3;
	}
}

function Collected(PickUpCollected : GameObject)
{
	// retrieve name of the collected pick up and cast int
	var index : int = parseInt(PickUpCollected.name);

	//retrieve the pickup state
	var type : int = PickUpCollected.GetComponent(PickUp).type;

	//update the score depending on the type pickup
	if (type == 1)
	{
		score += 2; // add 2 to the score
	}

	else if (type == 2)
	{
		score += Random.Range(-2, 5); // add a random score between -2 and 5 to score
	}

	// update the score
	UpdateScoreText();

	//	Adds Score, when the object is collected.
	ApplyScore(10);

	// destroy the pickup
	Destroy(PickUpCollected);
}

function ApplyScore(score : int)
{
	Score += score;
}