import java.util.LinkedList;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.net.URL;
import java.awt.image.RasterFormatException;

public class SpriteSheet
{
	//	What we're going to store the images in
	private BufferedImage[] images;
	
	//	Holds the location of our sprites
	private URL loc;
	
	//	The image we'll grab our sprites from
	private BufferedImage sprites;
	
	//	Tile size of each image
	private int tileSizeX;
	private int tileSizeY;
	
	//	Tiles in the image
	private int xTiles;
	private int yTiles;
	
	SpriteSheet(String sourceLoc, int tX, int tY)
	{
		try
		{
			//	Find where our resources are stored
			loc = this.getClass().getResource(sourceLoc);
			
		}catch(Exception e)
		{
			//	Some error handling
			System.out.println(sourceLoc + " is missing.");
			e.printStackTrace();
		}
		try
		{
			//	Get our resources from the URL
			sprites = ImageIO.read(loc);
			
		}catch(Exception e)
		{
			//	Some error handling
			System.out.println("Image missing or corrupted.");
			e.printStackTrace();
		}
		
		//	Amount of tiles in the x and y directions
		xTiles = tX;
		yTiles = tY;
		
		//	Array stores the images after they're split up
		//	The size is the amount of x tiles and y tiles (area)
		images = new BufferedImage[xTiles * yTiles];
		
		//	Figure out the size of the tiles
		tileSizeX = sprites.getWidth()/xTiles;
		tileSizeY = sprites.getHeight()/yTiles;
		
		//	Do the actual splitting of the image into the array
		loadSprites();
	}
	
	//	Gets the instance of the spritesheet
	public BufferedImage[] getSpritesheet() { return images;}
	
	private void loadSprites()
	{
		BufferedImage temp;
		
		for(int x = 0, y = 0, i = 0;	; x += tileSizeX)
		{
			temp = null;
			
			System.out.println((sprites.getWidth() - x) + ", " + (sprites.getHeight() - y ));
			
			try
			{
				temp = sprites.getSubimage(x, y, x + tileSizeX, y + tileSizeY);
				
			}catch(RasterFormatException e)
			{
				System.out.println("Tile size is wrong, out of bounds.");
			}
			
			//	Add the image to the array
			images[i] = temp;
			
			//	Should stop the loop from getting outside the raster
			if( i + 1 == images.length)
			{
				break;
			}
			
			//	Makes the loop jump to the next row to load new images
			if(i == xTiles)
			{
				y += tileSizeY;
				x = 0;
			}
			
			i++;
		}
	}
}