package game1;


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

public class SpriteArray
{

    //sprite array
    private BufferedImage[][] sprites;
    private int spriteXCount;
    private int spriteYCount;

    //main constructor:
    public SpriteArray(String file, int spriteWidth, int spriteHeight)
    {

        //create File from filename sent in string
        File imageFile = new File(file);

        //create BufferedImage to hold image read from file
        BufferedImage image = null;

        //read image from file supplied, throw exception if it fails
        try
        {
            image = ImageIO.read(imageFile);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }

        //returns width and height of image, used to calculate number of sprites
        int cellWidth = image.getWidth();
        int cellHeight = image.getHeight();

        //calculate number of sprites in spritesheet
        spriteXCount = cellWidth / spriteWidth;
        spriteYCount = cellHeight / spriteHeight;

        //allocate memory for required number of images in 'sprites' array
        sprites = new BufferedImage[spriteXCount][spriteYCount];

        //apply each subimage (sprite from spritesheet) to each element in the array
        for (int i = 0; i < spriteXCount; i++)
        {
            for (int j = 0; j < spriteYCount; j++)
            {
                sprites[i][j] = image.getSubimage( (spriteWidth * i) , (spriteHeight * j), spriteWidth, spriteHeight);
            }

        }

    }

    public BufferedImage[][] getSprites()
    {
        return sprites;
    }

    public BufferedImage getSpriteElement(int i, int j)
    {
        return sprites[i][j];
    }




}