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

public class CanvasArt : MonoBehaviour
{
    public GameObject BackBox;
    public GameObject ClimableBox;
    public GameObject RegularBox;
    private GameObject player;
    private bool isDrawing;
    private float WidthSF;
    private float HeightSF;
    private Vector2[,] grid;

    // Pixel art program: https://answers.unity.com/questions/1810907/how-do-i-make-a-pixel-art-program.html

    void Start()
    {
        player = GameObject.FindGameObjectWithTag("Player");
    }

    // Update is called once per frame
    void Update()
    {
        Draw();
    }

    void Draw() {
        isDrawing = player.GetComponent<HubInteraction>().cameraDraw;
        if (isDrawing && Input.GetKeyDown(KeyCode.F)) {
            grid = new Vector2[192, 108];
            WidthSF = Screen.width / 192;
            HeightSF = Screen.height / 108;
            for (int i = 1; i <= 192; i++)
            {
                for (int j = 1; j <= 108; j++)
                {
                // Assign a position scaled to fit screen size
                grid[i - 1, j - 1] = new Vector2(i * WidthSF, j * HeightSF);
                }
            }
        }
        if (isDrawing) {
            if (Input.GetMouseButtonDown(0)) {
                Vector2 mousePos = Input.mousePosition;
                mousePos = new Vector2 (Mathf.RoundToInt(mousePos.x / WidthSF) * WidthSF, Mathf.RoundToInt(mousePos.y / HeightSF) * HeightSF);
                Vector2 Square = grid[(int)mousePos.x, (int)mousePos.y];
                Instantiate(BackBox, Square, Quaternion.identity);
            }
        }
    }
}