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    public static void HandleSetter(BlockCommandSender sender, ArrayList<Player> affectedPlayers, String arg) {
        Setter setter = new Gson().fromJson(arg, Setter.class);
        if (setter.giveitems.length > 0) {
            for (Inventory inv : setter.giveitems) {
                if (inv.id != -1) {
                    int id = inv.id;
                    int meta = inv.data != -1 ? inv.data : 0;
                    int amount = inv.amount != -1 ? inv.amount : 1;
                    ItemStack is = new ItemStack(id, amount, (short)meta);
                    if (id == Material.MAP.getId() && inv.mapurl != null) {
                        is = MapChanger.getCustomMap(inv.mapurl);
                        is.setAmount(amount);
                    }
                    if (inv.name != null) {
                        is.getItemMeta().setDisplayName(inv.name);
                    }
                    if (inv.lore.length > 0) {
                        List<String> lore = new ArrayList<String>();
                        for (String clore : inv.lore) {
                            lore.add(clore);
                        }
                        is.getItemMeta().setLore(lore);
                    }
                    if (inv.ench.length > 0) {
                        for (Enchantment e : inv.ench) {
                            if (e.id != -1 && e.level != -1) {
                                is.getItemMeta().addEnchant(org.bukkit.enchantments.Enchantment.getById(e.id), e.level, true);
                            }
                        }
                    }
                    if (inv.skullowner != null && (is.getType() == Material.SKULL || is.getType() == Material.SKULL_ITEM)) {
                        SkullMeta smeta = (SkullMeta)is.getItemMeta();
                        smeta.setOwner(inv.skullowner);
                        is.setItemMeta(smeta);
                    }
                    for (Player p : affectedPlayers) {
                        if (inv.slot != -1) {
                            p.getInventory().setItem(inv.slot, is);
                        } else {
                            p.getInventory().addItem(is);
                        }
                    }
                }
            }
        }
        if (setter.setblocks.length > 0) {
            for (SetBlock sb : setter.setblocks) {
                if (sb.x != Integer.MAX_VALUE && sb.y != Integer.MAX_VALUE && sb.z != Integer.MAX_VALUE) {
                    Location loc = new Location(sender.getBlock().getWorld(), sb.x, sb.y, sb.z);
                    int id = (sb.id == -1) ? sender.getBlock().getWorld().getBlockAt(loc).getTypeId() : sb.id;
                    int meta = sb.meta;
                    sender.getBlock().getWorld().getBlockAt(loc).setTypeIdAndData(id, (byte)meta, true);
                }
            }
        }
        if (setter.newobj != null) {
            if (setter.newobj.name != null && setter.newobj.goals.length > 0) {
                ObjectiveSystem.AddObjective(setter.newobj.name, setter.newobj.goals);
            }
        }
        if (setter.setobj != null) {
            if (setter.setobj.completegoal.length > 1) {
                Objective obj = ObjectiveSystem.find(setter.setobj.completegoal[0]);
                obj.completeGoal(setter.setobj.completegoal[1]);
            }
            if (setter.setobj.deleteobj != null) {
                Objective obj = ObjectiveSystem.find(setter.setobj.deleteobj);
                if (obj == null) { Msg.send("couldn't find objective: '" + setter.setobj.deleteobj + "'"); }
                else {
                    ObjectiveSystem.objectives.remove(obj);
                }
            }
            if (setter.setobj.reset == 1) {
                ObjectiveSystem.objectives.clear();
            }
        }
        if (setter.spawnmobs.length > 0) {
            for (SpawnMob sm : setter.spawnmobs) {
                if (sm.x != Integer.MAX_VALUE && sm.y != Integer.MAX_VALUE && sm.z != Integer.MAX_VALUE && sm.types.length > 0 && sm.count > 0) {
                    Location center = new Location(sender.getBlock().getWorld(), sm.x, sm.y, sm.z);
                    for (int i=0;i<sm.count;i++) {
                        String mobtype = getRandomMob(sm.types);
                        Location spawnloc = getSpreadLocation(center, sm.spread);
                        if (mobtype.equalsIgnoreCase("skeleton")) {
                            sender.getBlock().getWorld().spawnEntity(spawnloc, EntityType.SKELETON);
                        } else if (mobtype.equalsIgnoreCase("creeper")) {
                            sender.getBlock().getWorld().spawnEntity(spawnloc, EntityType.CREEPER);
                        } else {
                            sender.getBlock().getWorld().spawnEntity(spawnloc, EntityType.ZOMBIE);
                        }
                    }
                }
            }
        }
    }