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

public class Bitmap {

    public static Bitmap sprites, font;
    public static String characters = " !\"#$%&'()*+,-./0123456789:;<=>?"
            + "@ABCDEFGHIJKLMNOPQRSTUVWXYZ(\\)^_";
    public int pixels[], width, height;

    public Bitmap(String name) {
        BufferedImage img = null;

        try {
            img = ImageIO.read(Bitmap.class.getResourceAsStream("/res/" + name));
        } catch (IOException ex) {
            ex.printStackTrace();
            return;
        }

        width = img.getWidth();
        height = img.getHeight();
        pixels = img.getRGB(0, 0, width, height, pixels, 0, width);
    }

    public Bitmap(int width, int height) {
        this.width = width;
        this.height = height;
        pixels = new int[width * height];
    }

    public static void init() {
        font = new Bitmap("font.png");
        sprites = new Bitmap("sprites.png");
    }

    public void clear() {
        for (int i = 0; i < pixels.length; i++) {
            pixels[i] = 0x262626;
        }
    }

    public void random() {
        for (int i = 0; i < pixels.length; i++) {
            pixels[i] = new Random().nextInt(0xFF) * 0x010101;
        }
    }

    public Bitmap getSubImage(int x, int y, int width, int height) {
        Bitmap returned = new Bitmap(width, height);

        for (int ix = 0; ix < width; ix++) {
            for (int iy = 0; iy < height; iy++) {
                try {
                    returned.pixels[ix + iy * width] = pixels[x + (ix + iy * width) % width + (y + (ix + iy * width) / width) * this.width];
                } catch (Exception e) {
                    continue;
                }
            }
        }

        return returned;
    }

    public Bitmap getSubImage(int x, int y, int width, int height, int color) {
        Bitmap returned = new Bitmap(width, height);

        for (int ix = 0; ix < width; ix++) {
            for (int iy = 0; iy < height; iy++) {
                try {
                    returned.pixels[ix + iy * width] = pixels[x + (ix + iy * width) % width + (y + (ix + iy * width) / width) * this.width] & color;
                } catch (Exception e) {
                    continue;
                }
            }
        }

        return returned;
    }

    public void setSubImage(Bitmap bitmap, int x, int y) {
        for (int i = 0; i < bitmap.pixels.length; i++) {
            try {
                if (x + i % bitmap.width >= 0 && x + i % bitmap.width < width) {
                    pixels[x + i % bitmap.width + (y + i / bitmap.width) * width] = bitmap.pixels[i] >> 24 == 0 ? pixels[x + i % bitmap.width + (y + i / bitmap.width) * width] : bitmap.pixels[i];
                }
            } catch (Exception e) {
                continue;
            }
        }
    }

    public void setSubImage(Bitmap bitmap, int x, int y, int color) {
        for (int i = 0; i < bitmap.pixels.length; i++) {
            try {
                if (x + i % bitmap.width >= 0 && x + i % bitmap.width < width) {
                    pixels[x + i % bitmap.width + (y + i / bitmap.width) * width] = bitmap.pixels[i] >> 24 == 0 ? pixels[x + i % bitmap.width + (y + i / bitmap.width) * width] : bitmap.pixels[i] & color;
                }
            } catch (Exception e) {
                continue;
            }
        }
    }

    public Bitmap getFlippedCopy(boolean horizontal) {
        Bitmap returned = new Bitmap(width, height);

        if (horizontal) {
            for (int ix = 0; ix < width; ix++) {
                for (int iy = 0; iy < height; iy++) {
                    try {
                        returned.pixels[ix + iy * width] = pixels[(width - ix - 1) + iy * width];
                    } catch (Exception e) {
                        continue;
                    }
                }
            }

        } else {
            System.arraycopy(pixels, 0, returned.pixels, 0, width * height);
        }

        return returned;
    }

    public void drawString(String string, int x, int y) {
        for (int i = 0; i < string.length(); i++) {
            int character = characters.indexOf(Character.toUpperCase(string.charAt(i)));
            setSubImage(font.getSubImage((character % 32) * 4, (character / 32) * 6, 4, 6), x + i * 4, y, 0xE6E4D5);
        }
    }

    public void drawString(String string, int x, int y, int color) {
        for (int i = 0; i < string.length(); i++) {
            int character = characters.indexOf(Character.toUpperCase(string.charAt(i)));
            setSubImage(font.getSubImage((character % 32) * 4, (character / 32) * 6, 4, 6), x + i * 4, y, color);
        }
    }

    public void drawCenteredString(String string, int y) {
        int x = (Main.IMG_WIDTH - string.length() * 4) / 2;
        for (int i = 0; i < string.length(); i++) {
            int character = characters.indexOf(Character.toUpperCase(string.charAt(i)));
            setSubImage(font.getSubImage((character % 32) * 4, (character / 32) * 6, 4, 6), x + i * 4, y, 0xE6E4D5);
        }
    }

    public void drawCenteredString(String string, int y, int color) {
        int x = (Main.IMG_WIDTH - string.length() * 4) / 2;
        for (int i = 0; i < string.length(); i++) {
            int character = characters.indexOf(Character.toUpperCase(string.charAt(i)));
            setSubImage(font.getSubImage((character % 32) * 4, (character / 32) * 6, 4, 6), x + i * 4, y, color);
        }
    }
}