package MAndApps.apps.spacewars.entity.enemy;

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

import MAndApps.apps.spacewars.SpaceWars;
import MAndApps.apps.spacewars.entity.Enemy;

public class NormalEnemy extends Enemy {
	private int health = 2;
	private final int MAX_HEALTH = health;
	private static final int WIDTH = 16, HEIGHT = 16, PROXIMITY = 200;
	private double x, y, time = 0, desiredX, desiredY, Xmod, Ymod, dx = 0,
			dy = 0;
	private static final double ACC = 0.005, MAXSPEED = 1, DEAD_ACC = 0.5d,
			DEAD_MAXSPEED = 5;
	private Color color;
	private boolean debug = false, alive = true;
	private double healthBar = 1;

	public NormalEnemy(int x, int y) {
		super(x, y, 16, 16);
		this.x = x;
		this.y = y;
		final int LOW = 200, HIGH = 256, color = rand(LOW, HIGH);
		this.color = new Color(color, color, color);
		
	}

	@Override 
	public int tick() {
		// epic AI
		if((int)healthBar <= 0){
			alive = false;
		}
		if (alive) {
			if (SpaceWars.getPlayer().getAlive()) {
				if (time > 0.4d) {
					time = 0;
					Xmod = rand(-PROXIMITY, PROXIMITY);
					Ymod = rand(-PROXIMITY, PROXIMITY);
				}

				desiredX = SpaceWars.getPlayer().getX() + Xmod;
				desiredY = SpaceWars.getPlayer().getY() + Ymod;

				if ((int) desiredX > (int) x)
					dx += ACC;
				else if ((int) desiredX < (int) x) {
					dx -= ACC;
				}
				if ((int) desiredY > (int) y)
					dy += ACC;
				else if ((int) desiredY < (int) y) {
					dy -= ACC;
				}

				if (dx > MAXSPEED)
					while (dx > MAXSPEED)
						dx -= ACC;
				if (dx < 0 - MAXSPEED)
					while (dx < 0 - MAXSPEED)
						dx += ACC;
				if (dy > MAXSPEED)
					while (dy > MAXSPEED)
						dy -= ACC;
				if (dy < 0 - MAXSPEED)
					while (dy < 0 - MAXSPEED)
						dy += ACC;

			} else {

				if (time > 0.4d) {
					time = 0;
					Xmod = rand(0, 1024);
					Ymod = rand(0, 200);
				}

				desiredX = Xmod;
				desiredY = Ymod;

				if ((int) desiredX > (int) x)
					dx += DEAD_ACC;
				else if ((int) desiredX < (int) x) {
					dx -= DEAD_ACC;
				}
				if ((int) desiredY > (int) y)
					dy += DEAD_ACC;
				else if ((int) desiredY < (int) y) {
					dy -= DEAD_ACC;
				}

				if (dx > DEAD_MAXSPEED)
					while (dx > DEAD_MAXSPEED)
						dx -= DEAD_ACC;
				if (dx < 0 - DEAD_MAXSPEED)
					while (dx < 0 - DEAD_MAXSPEED)
						dx += DEAD_ACC;
				if (dy > DEAD_MAXSPEED)
					while (dy > DEAD_MAXSPEED)
						dy -= DEAD_ACC;
				if (dy < 0 - DEAD_MAXSPEED)
					while (dy < 0 - DEAD_MAXSPEED)
						dy += DEAD_ACC;

			}

			x += dx;
			y += dy;

			if (x > SpaceWars.getWIDTH() - WIDTH)
				while (x > SpaceWars.getWIDTH() - WIDTH)
					x--;
			if (x < 0)
				while (x < 0)
					x++;

			if (y > SpaceWars.getHEIGHT() - HEIGHT)
				while (y > SpaceWars.getHEIGHT() - HEIGHT)
					y--;
			if (y < 0)
				while (y < 0)
					y++;
		}
		time += 0.01;
		absoluteTime++;
		updateBoundingBox((int) x, (int) y, 16, 16);
		return 0;
	}

	private Random r = new Random();
	private int absoluteTime = 0;
	
	@Override
	public void render(Graphics g) {
		g.setColor(color);
		int temp;
		try{
			temp = r.nextInt((int)(0-(absoluteTime/20d))+5);
		}catch(Exception e){
			temp = 0;
		}
		
		if (temp == 0) if (alive) g.fillRect((int) x, (int) y, WIDTH, HEIGHT);
		if (debug) g.drawLine((int) x, (int) y, (int) desiredX, (int) desiredY);
		
		healthBar += ((((double)health/(double)MAX_HEALTH)*16) - healthBar)/6;
		//healthbar
		g.setColor(Color.RED);
		g.fillRect((int)x, (int)y, WIDTH - 1, 3);
		g.setColor(Color.GREEN);
		g.fillRect((int)x, (int)y, (int)healthBar, 3);
		g.setColor(Color.BLACK);
		g.drawRect((int)x, (int)y, WIDTH - 1, 3);
	}

	@Override
	public void damage(int i) {
		health -= i;
	}

	@Override
	public boolean getAlive() {
		return alive;
	}

	@Override
	public Color getColor() {
		return color;
	}
	
	@Override
	public int getWorth(){
		return r.nextInt(3)+1;
	}
}