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

public class openStructure : MonoBehaviour
{
	public List<GameObject> objectsToFade = new List<GameObject> ();
	public Shader transparent;
	public Shader normalShader;
	public bool activate;
	public bool changed;
	public int option = 1;
	int i;
	//just a simple script to disable and enable part of the structure, using a transparent shader, so the player can go outside

	void Update ()
	{
		if (activate) {
			if (!changed) {
				changeShader ();
			}
			for (i = 0; i < objectsToFade.Count; i++) {
				Color alpha = objectsToFade [i].GetComponent<Renderer> ().material.color;
				alpha.a += (Time.deltaTime / 2) * option;
				objectsToFade [i].GetComponent<Renderer> ().material.color = alpha;
				if (alpha.a <= 0 || alpha.a >= 1) {
					activate = false;
					disableObjects ();
				}
			}
		}
	}

	public void changeStructureState ()
	{
		option *= (-1);
		activate = true;
	}

	void disableObjects ()
	{
		for (int i = 0; i < objectsToFade.Count; i++) {
			if (option == -1) {
				objectsToFade [i].GetComponent<Collider> ().enabled = false;
			} else {
				objectsToFade [i].GetComponent<Collider> ().enabled = true;
				objectsToFade [i].GetComponent<Renderer> ().material.shader = normalShader; 
				objectsToFade [i].GetComponent<Renderer> ().material.color = Color.white;
			}
		}
		if (option == 1) {
			changed = false;
		}
	}

	void changeShader ()
	{
		for (int i = 0; i < objectsToFade.Count; i++) {
			if (option == -1) {
				objectsToFade [i].GetComponent<Renderer> ().material.shader = transparent; 
			}
		}
		changed = true;
	}
}