Enemy.java

package world;

import interfaces.IEnemyObserver;
import interfaces.ITickable;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Random;

public class Enemy extends Placeable implements ITickable {
	private int hp;
	private int moveTimeLeft;
	private EnemyType type;
	private Field prevField;
	private int moveTries;
	private static HashMap<EnemyType, Integer> moveTimes = new HashMap<EnemyType, Integer>();
	public static boolean alwaysSplit = false;
	public static boolean randomMovement = true;
	static
		{
		moveTimes.put(EnemyType.HUMAN, 3);
		moveTimes.put(EnemyType.DWARF, 4);
		moveTimes.put(EnemyType.ELF, 2);
		moveTimes.put(EnemyType.HOBBIT, 5);
		}

	public Enemy(EnemyType p_type) {
		type = p_type;
		reset();
		prevField = null;
		hp = 100;
	}
	
	public void hurt(int dmg) {

		Random rand = new Random();
		hp -= dmg;
		if(alwaysSplit)
			split();
		if (hp <= 0) {
			field.getWorld().notifyEnemyDied(this);
			field.stepOff(this);
		} else if (rand.nextInt(15) == 0)
			split();
	}

	public EnemyType getType() {
		return type;
	}

	public Field getField() {
		return field;
	}

	private void move() {
		if (field.canStepOff(this)) {
			ArrayList<Field> potentials = new ArrayList<Field>();
			ArrayList<Field> neighbours = field.getNeighbours();
			for (Field field : neighbours) {
				if (field != null && field.isRoad() && field != prevField) {
					potentials.add(field);
				}
			}
			if(!potentials.isEmpty()){
			int index = 0;
			if (randomMovement) {
				Random rand = new Random();
				index = rand.nextInt(potentials.size());
			}
			field.stepOff(this);
			prevField = field;
			reset();
			potentials.get(index).stepOn(this);
			}
		} else {
			moveTries++;
		}
	}

	public void split() {
		hp=hp/2;
		field.getWorld().getSpawnManager().spawnEnemy(field, type, Math.round(hp),prevField);
	}

	private void reset() {
		moveTimeLeft = moveTimes.get(getType());
		moveTries = 0;
	}

	public int getMoveTryCount() {
		return moveTries;
	}

	public void tick() {
		if (moveTimeLeft <= 0 && hp>0)
			move();
		else
			moveTimeLeft--;
	}

	public int getHP() {
		return hp;
	}
	
	public void setHP(int hp) {
		 this.hp=hp;
	}
	
	public void setPrevField(Field f){
		prevField=f;
	}
}