import java.awt.Graphics;
import java.awt.Image;
import java.util.Random;

import javax.swing.ImageIcon;
import javax.swing.JPanel;

public class BackPanel extends JPanel {

    public Image Background, Grass, Stone, Water, Dirt, Bedrock; // Block images

    public boolean imagesLoaded = false; // Whether images are loaded or not

    public int tileSize = 16; // Size of the tile images
    public int rectangle[]; // For later use (Collision, etc)

    private FPSCounter fps = new FPSCounter();

    public BackPanel() {
        getImages();
    }

    public void getImages() { // Load images
        Background = new ImageIcon("res/Textures/Background.png").getImage();
        Grass = new ImageIcon("res/Textures/Grass.png").getImage();
        Dirt = new ImageIcon("res/Textures/Dirt.png").getImage();
        Stone = new ImageIcon("res/Textures/Stone.png").getImage();
        Water = new ImageIcon("res/Textures/Water.png").getImage();
        Bedrock = new ImageIcon("res/Textures/Bedrock.png").getImage();

        imagesLoaded = true;
    }

    // Ignore this method
    public void randomNumberCreator(Graphics g) {
        Random randomNumber = new Random();
        Random x = new Random();
        Random y = new Random();

        int xRandom = x.nextInt(Main.WIDTH);
        int yRandom = y.nextInt(Main.HEIGHT);

        switch (randomNumber.nextInt(4)) {
        case 1:
            if (yRandom >= tileSize * 10 && yRandom <= tileSize * 25 && xRandom >= 0 && xRandom <= Main.WIDTH) {
                g.drawImage(Dirt, xRandom, yRandom, tileSize, tileSize, null);
            }
            break;
        case 2:
            if (yRandom >= tileSize * 25 && yRandom <= tileSize * 30 && xRandom >= 0 && xRandom <= Main.WIDTH) {
                g.drawImage(Stone, xRandom, yRandom, tileSize, tileSize, null);
            }
            break;

        }
    }

    public void paintComponent(Graphics g) {
        if (imagesLoaded) {
            g.drawImage(Background, 0, 0, Main.WIDTH, Main.HEIGHT, null);

            fps.tick();
            g.drawString("FPS: " + fps.FPS, 10, 20);

            // int y = tilesize * [Which layer to start on]; y < tileSize * Layer to end on; y += tileSize [Go to next layer]
            for (int x = 0; x < Main.WIDTH; x += tileSize) {
                for (int y = tileSize * 18; y < tileSize * 19; y += tileSize) {// Grass
                    g.drawImage(Grass, x, y, tileSize, tileSize, null);
                    g.drawRect(x, y, tileSize, tileSize);
                }
                for (int y = tileSize * 19; y < tileSize * 25; y += tileSize) {// Dirt
                    g.drawImage(Dirt, x, y, tileSize, tileSize, null);
                    g.drawRect(x, y, tileSize, tileSize);
                }
                for (int y = tileSize * 25; y < tileSize * 30; y += tileSize) {// Stone
                    g.drawImage(Stone, x, y, tileSize, tileSize, null);
                    g.drawRect(x, y, tileSize, tileSize);
                }
                for (int y = tileSize * 30; y < tileSize * 37; y += tileSize) {// Bedrock
                    g.drawImage(Bedrock, x, y, tileSize, tileSize, null);
                    g.drawRect(x, y, tileSize, tileSize);
                }

            }

        }
        repaint();

    }
}