package com.neet.MapViewer.TileMap;

import javafx.scene.canvas.Canvas;
import com.neet.MapViewer.Helper.*;

public class TileMap {
    private int[][] tileType;

    public Canvas mapCanvas = new Canvas(640,640);  //640 because there are 40 tile with tile size 16;

    /**
     * initialise canvas for the tile map.
     */
    public void render(){
        drawMap();
    }

    public void drawMap() {
        tileType = new int[Map.getNumRows()][Map.getNumCols()];

        for(int row = 0; row < Map.getNumRows(); row++) {
            for(int col = 0; col < Map.getNumCols(); col++) {
                if(Map.getTile(row, col) == 0) continue;

                /* Variable r is for any tile that is not dividable by 20 is a non blocked tile
                   Variable c is for the column of source. If the tile mob 20 is 0 thn it its at first row of source
                   and if mob 20 is 1 than it is at the second row of source.
                 */
                int r = Map.getTile(row, col) / Img.getNumTilesAcross();
                int c = Map.getTile(row, col) % Img.getNumTilesAcross();

                if (r == 0) {
                    mapCanvas.getGraphicsContext2D().drawImage(
                            Img.tileSet, c * Img.TILESIZE, 0, Img.TILESIZE, Img.TILESIZE,
                            col * Img.TILESIZE, row * Img.TILESIZE, Img.TILESIZE, Img.TILESIZE);
                    tileType[row][col] = 0;
                }
                else {
                    mapCanvas.getGraphicsContext2D().drawImage(
                            Img.tileSet, c * Img.TILESIZE, Img.TILESIZE, Img.TILESIZE, Img.TILESIZE,
                            col * Img.TILESIZE, row * Img.TILESIZE, Img.TILESIZE, Img.TILESIZE);
                    tileType[row][col] = 1;
                }
            }
        }
    }
}