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

public class Merger : MonoBehaviour {

    // Use this for initialization
    void Start () {
        // fetch all mesh filters of objects tagged as floor
        List<MeshFilter> meshFilters = new List<MeshFilter>();
        GameObject[] floorObjects = GameObject.FindGameObjectsWithTag ("floor");

        foreach (GameObject curFloor in floorObjects)
        {
            meshFilters.Add (curFloor.GetComponent<MeshFilter> ());
        }

        // Make a combine instance for all the mesh filters
        CombineInstance[] combine = new CombineInstance[meshFilters.Count];

        // Loop through all the mesh filters to assign to the combine instance
        for(int i = 0; i < meshFilters.Count; i++)
        {
            // Set the mesh for this combine instance
            combine[i].mesh = meshFilters[i].sharedMesh;
            // Set the transform for this combine instance
            combine[i].transform = meshFilters[i].transform.localToWorldMatrix;
            // Set the old object to inactive (ROB you might not want to do this as it will delete your old floor,
            // which isnt what you want as you want this to basically be an invisible overlay right?)
            meshFilters[i].gameObject.SetActive(false);
        }

        // Make a new mesh for this parent object
        transform.GetComponent<MeshFilter>().mesh = new Mesh();
        // Combine the meshes using the combine instance
        transform.GetComponent<MeshFilter>().mesh.CombineMeshes(combine);
        // Set this new object to active
        transform.gameObject.SetActive(true);

        // Here you might wanna adjust the positioning of this new object, and add the SteamVR floor script to this object
        // also might want to hide the mesh so its not visible or whatever you need to do?
        transform.position = new Vector3(0,0,0);
        gameObject.AddComponent<TeleportArea> ();
    }
}