using UnityEngine;
using System;

public class TileGrid : MonoBehaviour
{
    Dimensions dimensions;
    GameObject[,,] grid;
    float padding;

    public void Build(Dimensions dimensions, GameObject tilePrefab, float padding)
    {
        this.dimensions = dimensions;
        grid = new GameObject[dimensions.x, dimensions.y, dimensions.z];

        for (int x = 0; x < grid.GetLength(0); x++)
        {
            for (int y = 0; y < grid.GetLength(1); y++)
            {
                for (int z = 0; z < grid.GetLength(2); z++)
                {
                    float xPos, yPos, zPos = 0f;
                    xPos = transform.position.x + x * padding;
                    yPos = transform.position.y + y * padding;
                    zPos = transform.position.z + z * padding;
                    Vector3 pos = new Vector3(xPos, yPos, zPos);

                    GameObject tileGO = Instantiate(tilePrefab, pos, Quaternion.identity, transform);
                    grid[x, y, z] = tileGO;

                    Tile tile = tileGO.GetComponent<Tile>();
                    tile.Initialize(new Dimensions(x, y, z));
                }
            }
        }

        Bounds bounds = new Bounds(transform.position, Vector3.zero);
        foreach (Renderer r in GetComponentsInChildren<Renderer>())
        {
            bounds.Encapsulate(r.bounds);
        }

        TranslateTilesByOffset(bounds.center);
    }

    void TranslateTilesByOffset(Vector3 offset)
    {
        foreach (GameObject tileGO in grid)
        {
            tileGO.transform.position -= offset;
        }
    }
}