public Monster getClosestWithinMax(Point p, int r) {
    Monster monster = null;
    Monster closestMonster = null;

    double closestDistance = 0;

    try {
      for (String key : monsters.keySet()) {
        monster = (Monster) monsters.get(key);
        if (!monster.getName().equals("Pig")
            && !monster.getName().equals("BlueThorn")
            && !monster.getName().equals("VineThorn")) {
          if (monster.getIsInPanel()) {
            double distance = p.distance(monster.getCenterPoint());
            if ((distance < closestDistance || closestDistance == 0) && distance <= r) {
              closestMonster = monster;
              closestDistance = distance;
            }
          }
        }
      }
    } catch (ConcurrentModificationException concEx) {
      // another thread was trying to modify monsters while iterating
      // we'll continue and the new item can be grabbed on the next update
    }

    return closestMonster;
  }
  public Monster getMostAggroInPanel(Point p) {
    Monster monster = null;
    Monster mostAggroMonster = null;

    double mostAggro = 0;

    try {
      for (String key : monsters.keySet()) {
        monster = (Monster) monsters.get(key);
        if (!monster.getName().equals("Pig")
            && !monster.getName().equals("BlueThorn")
            && !monster.getName().equals("VineThorn")) {
          if (monster.getIsInPanel()) {
            double distance = p.distance(monster.getCenterPoint());
            if (monster.getPlayerDamage() > mostAggro) {
              mostAggroMonster = monster;
              mostAggro = monster.getPlayerDamage();
            }
          }
        }
      }
    } catch (ConcurrentModificationException concEx) {
      // another thread was trying to modify monsters while iterating
      // we'll continue and the new item can be grabbed on the next update
    }

    return mostAggroMonster;
  }
  public void spawnNearPlaceable() {
    float prob, rand;
    Placeable placeable = registry.getPlaceableManager().getRandomPlacable();
    if (placeable != null
        && !placeable.getType().equals("TownHall")
        && !placeable.getType().equals("Cabin")
        && !placeable.getType().equals("Chest")) {

      Point p = placeable.getCenterPoint();
      HashMap<String, Player> players = registry.getPlayerManager().getPlayers();
      Player player = null;
      boolean playerNear = false;
      for (String key : players.keySet()) {
        player = (Player) players.get(key);
        Point p2 = new Point(player.getMapX(), player.getMapY());
        if (p.distance(p2) < mobSpawnRangeMin * 2) {
          playerNear = true;
        }
      }
      if (!playerNear) {
        for (MonsterType monsterType : MonsterType.values()) {
          if (monsterType.toString().equals("Porcupine")
              || monsterType.toString().equals("Snail")
              || monsterType.toString().equals("Snake")
              || monsterType.toString().equals("ZombieWalrus")) {
            rand = Rand.getFloat();
            prob = getShouldSpawn(monsterType, 0);
            if (rand <= prob / 3.0f) {
              // System.out.println("spawn near placeable " + monsterType.name());
              spawn(monsterType.name(), "Roaming", p.x, p.y);
            }
          }
        }
      }
    }
  }
  private void spawnPlants() {
    if (gameController.multiplayerMode != gameController.multiplayerMode.CLIENT) {
      // Blue Thorns
      int blueThornCount = this.getCountByType("BlueThorn");
      if (blueThornCount < 200) {
        for (int i = 0; i < 200 - blueThornCount; i++) {
          boolean canSpawn = true;
          int level = Rand.getRange(1, 3);
          Point vinePosition = new Point();
          vinePosition.x = Rand.getRange(1, gameController.getMapWidth());
          vinePosition.y =
              Rand.getRange(
                  registry.getBlockManager().getLevelBottom(level),
                  registry.getBlockManager().getLevelTop(level));

          vinePosition.y = this.findNextFloor(vinePosition.x, vinePosition.y, 60);

          if (this.doesRectContainBlocks(vinePosition.x, vinePosition.y + 100, 17, 16)) {
            Monster monster = null;
            try {
              for (String key : monsters.keySet()) {
                monster = (Monster) monsters.get(key);
                if (monster.getName().equals("BlueThorn")
                    || monster.getName().equals("VineThorn")) {
                  double distance = vinePosition.distance(monster.getCenterPoint());
                  if (distance < 750) {
                    canSpawn = false;
                    break;
                  }
                }
              }
            } catch (ConcurrentModificationException concEx) {
              // another thread was trying to modify monsters while iterating
              // we'll continue and the new item can be grabbed on the next update
            }
            if (canSpawn) {
              spawn("BlueThorn", "Roaming", vinePosition.x, vinePosition.y);
            }
          }
        }
      }

      // Vine Thorns
      int vineThornCount = this.getCountByType("VineThorn");
      if (vineThornCount < 200) {
        for (int i = 0; i < 200 - vineThornCount; i++) {
          boolean canSpawn = true;
          int level = Rand.getRange(1, 3);
          Point vinePosition = new Point();
          vinePosition.x = Rand.getRange(1, gameController.getMapWidth());
          vinePosition.y =
              Rand.getRange(
                  registry.getBlockManager().getLevelBottom(level),
                  registry.getBlockManager().getLevelTop(level));

          vinePosition.y = this.findNextFloor(vinePosition.x, vinePosition.y, 60);

          if (this.doesRectContainBlocks(vinePosition.x, vinePosition.y + 100, 17, 16)) {
            Monster monster = null;
            try {
              for (String key : monsters.keySet()) {
                monster = (Monster) monsters.get(key);
                if (monster.getName().equals("BlueThorn")
                    || monster.getName().equals("VineThorn")) {
                  double distance = vinePosition.distance(monster.getCenterPoint());
                  if (distance < 750) {
                    canSpawn = false;
                    break;
                  }
                }
              }
            } catch (ConcurrentModificationException concEx) {
              // another thread was trying to modify monsters while iterating
              // we'll continue and the new item can be grabbed on the next update
            }
            if (canSpawn) {
              spawn("VineThorn", "Roaming", vinePosition.x, vinePosition.y);
            }
          }
        }
      }
    }
  }