import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class Display extends JFrame implements Runnable {
	private static final long serialVersionUID = 1L;

	public static String TITLE = "The Box Alpha 0.05";
	public static int WIDTH = 600;
	public static int HEIGHT = 400;

	public int moveSpeed = 5;
	public boolean Paused = false;

	int xChar, yChar, xMouse, yMouse, xLaserAnchor, yLaserAnchor, xLaserDest, yLaserDest, xDirection, yDirection, xCoordinate, yCoordinate;
	int xZombie = 50, yZombie = 50;
	FPSCounter FPS = new FPSCounter();
	boolean SHOT = false;

	public String Controls = "Movement - ArrowKeys, Shooting - LMB, Sprint - Shift, Pause - ESC";

	public Image dbImage;
	public Graphics dbg;
	Font font = new Font("Arial", Font.BOLD, 12);
	Font font2 = new Font("Arial", Font.BOLD, 15);
	Image charImage, backImage, zombieImage;

	public void run() {
		try {
			while (true) {
				if (!Paused) {
					FPS.tick();
					move();
					FindCharacter();
				}
				Thread.sleep(10);
			}
		} catch (Exception e) {
			System.out.println("Error");
		}

	}

	public void Shooting() {
		while (!SHOT) {
			xLaserDest = xLaserAnchor;
			yLaserDest = yLaserAnchor;
		}
		while (SHOT) {
			xLaserDest = xCoordinate;
			yLaserDest = yCoordinate;
		}
	}

	public class FPSCounter {
		public int currentFPS = 0;
		public int FPS = 0;
		public long start = 0;

		public void tick() {
			currentFPS++;
			if (System.currentTimeMillis() - start >= 1000) {
				FPS = currentFPS;
				currentFPS = 0;
				start = System.currentTimeMillis();
			}
		}

		public int getFPS() {
			return FPS;
		}
	}

	public void move() {
		xChar += xDirection;
		yChar += yDirection;

		if (xChar <= 0) {
			xChar = 0;
		}
		if (xChar >= WIDTH - 32) {
			xChar = WIDTH - 32;
		}
		if (yChar <= 24) {
			yChar = 24;
		}
		if (yChar >= HEIGHT - 32) {
			yChar = HEIGHT - 32;
		}

	}

	public void setXDirection(int xdir) {
		xDirection = xdir;
	}

	public void setYDirection(int ydir) {
		yDirection = ydir;
	}

	public class AL extends KeyAdapter {
		public void keyPressed(KeyEvent e) {
			int keyCode = e.getKeyCode();

			if (keyCode == e.VK_ESCAPE) {
				if (!Paused) {
					Paused = true;
				} else {
					Paused = false;
				}
			}

			if (keyCode == e.VK_SHIFT) {
				moveSpeed = 8;
			}

			if (keyCode == e.VK_LEFT) {
				setXDirection(-moveSpeed);
			}

			if (keyCode == e.VK_RIGHT) {
				setXDirection(+moveSpeed);
			}

			if (keyCode == e.VK_UP) {
				setYDirection(-moveSpeed);
			}

			if (keyCode == e.VK_DOWN) {
				setYDirection(+moveSpeed);
			}
			e.consume();

		}

		public void keyReleased(KeyEvent e) {
			int keyCode = e.getKeyCode();

			if (keyCode == e.VK_SHIFT) {
				moveSpeed = 5;
			}

			if (keyCode == e.VK_LEFT) {
				setXDirection(0);
			}

			if (keyCode == e.VK_RIGHT) {
				setXDirection(0);
			}

			if (keyCode == e.VK_UP) {
				setYDirection(0);
			}

			if (keyCode == e.VK_DOWN) {
				setYDirection(0);
			}
			e.consume();

		}
	}

	public void drawImages() {
		try {
			// Load images
			backImage = new ImageIcon("res/Textures/Background.png").getImage();
			charImage = new ImageIcon("res/Characters/Character.png").getImage();
			zombieImage = new ImageIcon("res/Characters/Zombie.png").getImage();
		} catch (Exception e) {
			JOptionPane.showMessageDialog(null, "Error loading images. Please send a message to Ryan B. at RyanMB1997@hotmail.com");
		}
	}

	public Display() {

		// Game properties
		addKeyListener(new AL());
		addMouseListener(new Mouse());

		// Draw images
		drawImages();

		// Screen properties
		setTitle(TITLE);
		setSize(WIDTH, HEIGHT);
		setResizable(false);
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setLocationRelativeTo(null);

		xChar = 125;
		yChar = 125;

		xMouse = xChar + 16;
		yMouse = yChar + 16;

		xLaserAnchor = xChar + 16;
		yLaserAnchor = yChar + 16;

	}

	public void FindCharacter() {
		if (xZombie < xChar) {
			xZombie++;
		}
		if (xZombie > xChar) {
			xZombie--;
		}
		if (yZombie < yChar) {
			yZombie++;
		}
		if (yZombie > yChar) {
			yZombie--;
		}
	}

	class Mouse extends MouseAdapter {
		@Override
		public void mousePressed(MouseEvent e) {
			int xCoordinate = e.getX();
			int yCoordinate = e.getY();
			xMouse = xCoordinate;
			yMouse = yCoordinate;

			xLaserDest = xMouse;
			yLaserDest = yMouse;

			SHOT = true;
		}

		@Override
		public void mouseReleased(MouseEvent e) {
			xLaserDest = xChar + 16;
			yLaserDest = yChar + 16;

			SHOT = false;

		}
	}

	public void paint(Graphics g) {
		dbImage = createImage(getWidth(), getHeight());
		dbg = dbImage.getGraphics();
		paintComponent(dbg);
		g.drawImage(dbImage, 0, 0, this);

	}

	public void paintComponent(Graphics g) {

		xLaserAnchor = xChar + 16;
		yLaserAnchor = yChar + 16;

		g.drawImage(backImage, 0, 0, this);
		g.drawImage(charImage, xChar, yChar, this);
		g.drawImage(zombieImage, xZombie, yZombie, this);

		g.setColor(Color.YELLOW);
		g.setFont(font);
		g.drawString(Controls, 70, 40);

		g.drawString("MoveSpeed: " + moveSpeed, 460, 40);

		g.setColor(Color.YELLOW);
		g.setFont(font2);
		g.drawString("FPS: " + FPS.FPS, 5, 40);

		g.setColor(Color.YELLOW);
		g.drawLine(xLaserAnchor, yLaserAnchor, xLaserDest, yLaserDest);

		repaint();
	}

	public static void main(String[] args) {
		Display dis = new Display();
		// Threads
		Thread t1 = new Thread(dis);
		t1.start();
	}
}