package tool;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

/**
 *
 * @author Vipar
 */
public class TileSeparator {
    private BufferedImage image;
    private int tileSize;
    private String destinationFolder;

    public TileSeparator(BufferedImage image, int tileSize,
            String destinationFolder) {
        this.image = image;
        this.tileSize = tileSize;
        this.destinationFolder = destinationFolder;
    }

    public void generateTiles() throws IOException {
        int counter = 0;
        int width = image.getWidth() / tileSize;
        int height = image.getHeight() / tileSize;
        int x = 0;
        int y = 0;
        BufferedImage tile;
        File outputFile;
        for(int i = 0; i < height; i++) {
            for(int j = 0; j < width; j++) {
                tile = image.getSubimage(x, y, tileSize/2, tileSize/2);
                x += tileSize;
                outputFile = new File(destinationFolder + counter + ".png");
                ImageIO.write(tile,"png",outputFile);
                counter++;
            }
            y += tileSize;
            x = 0;
        }
    }
}