using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class StageManager : MonoBehaviour {

	public static StageManager Instance;
	// stages["Attribute"]で取れる
	public System.Collections.Generic.Dictionary<Stage.Type, GameObject> stages = new System.Collections.Generic.Dictionary<Stage.Type, GameObject>();
	private GameObject baseStage;

	void Awake () {
		if (Instance == null) {
			Instance = this;
		}
	}

	// Use this for initialization
	void Start () {
		Init ();
		SetStage ();
		CreateStages (10);
	}

	void Init () {
		baseStage = new GameObject ();
		baseStage.name = "stage";
		baseStage.transform.position = Vector3.zero;
		GameObject.FindGameObjectWithTag ("Player").transform.SetParent (baseStage.transform);
	}

	void SetStage () {
		object[] objects = Resources.LoadAll ("Prefabs/Object");
		foreach (var obj in objects) {
			GameObject gbj = (GameObject)obj;
			stages.Add(gbj.GetComponent<Stage>().Attribute, gbj);
		}
	}

	// One.
	public void CreateStage (Stage.Type attr, Vector3 pos) {
		GameObject obj = Instantiate (stages[attr]);
		obj.GetComponent<Stage> ().SetPosition (pos);
		obj.transform.SetParent (baseStage.transform);
	}

	// Any.
	public void CreateStages (int count) {
		for (int x = 0; x < count; x++) {
			for (int z = 0; z < count; z++) {
				CreateStage (GetTypes(Random.Range(0,3)), new Vector3 (x, Random.Range(-1, 1), z));
			}
		}
	}

	public Stage.Type GetTypes (int n) {
		if (n == 0) {
			return Stage.Type.SAND;
		} else if (n == 1) {
			return Stage.Type.WOOD;
		} else {
			return Stage.Type.GRASS;
		}
	}
	
	// Update is called once per frame
	void Update () {
	
	}
}