[UTIL|CLASS|TUTORIAL] Easy method to Disguise Players without APIs

Hello everyone, today i have created a simple method to Disguise Players as Mobs without any api, the code is this:

Code:java

public static void playerAsMob(Player toHide, EntityType mob, Player... canSee) {
        EntityLiving toSpawn = null;
        if (mob.equals(EntityType.BAT)){
            toSpawn = new EntityBat(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.BLAZE)){
            toSpawn = new EntityBlaze(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.CAVE_SPIDER)){
            toSpawn = new EntityCaveSpider(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.CHICKEN)){
            toSpawn = new EntityChicken(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.COW)){
            toSpawn = new EntityCow(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.CREEPER)){
            toSpawn = new EntityCreeper(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.ENDER_DRAGON)){
            toSpawn = new EntityEnderDragon(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.ENDERMAN)){
            toSpawn = new EntityEnderman(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.GHAST)){
            toSpawn = new EntityGhast(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.GIANT)){
            toSpawn = new EntityGiantZombie(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.HORSE)){
            toSpawn = new EntityHorse(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.IRON_GOLEM)){
            toSpawn = new EntityIronGolem(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.MAGMA_CUBE)){
            toSpawn = new EntityMagmaCube(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.MUSHROOM_COW)){
            toSpawn = new EntityMushroomCow(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.OCELOT)){
            toSpawn = new EntityOcelot(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.PIG)){
            toSpawn = new EntityPig(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.PIG_ZOMBIE)){
            toSpawn = new EntityPigZombie(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SHEEP)){
            toSpawn = new EntitySheep(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SILVERFISH)){
            toSpawn = new EntitySilverfish(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SKELETON)){
            toSpawn = new EntitySkeleton(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SLIME)){
            toSpawn = new EntitySlime(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SNOWMAN)){
            toSpawn = new EntitySnowman(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SPIDER)){
            toSpawn = new EntitySpider(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.SQUID)){
            toSpawn = new EntitySquid(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.VILLAGER)){
            toSpawn = new EntityVillager(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.WITCH)){
            toSpawn = new EntityWitch(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.WITHER)){
            toSpawn = new EntityWither(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.WOLF)){
            toSpawn = new EntityWolf(((CraftPlayer) toHide).getHandle().world);
        }
        if (mob.equals(EntityType.ZOMBIE)){
            toSpawn = new EntityZombie(((CraftPlayer) toHide).getHandle().world);
        }
        if (toSpawn == null) {
            throw new IllegalArgumentException("Mob must be living entity other than a player. Provided: " + mob.toString());
        }
        toSpawn.locX = toHide.getLocation().getX();
        toSpawn.locY = toHide.getLocation().getY();
        toSpawn.locZ = toHide.getLocation().getZ();
        toSpawn.id = ((CraftPlayer) toHide).getHandle().id;
        for (Player a : Bukkit.getOnlinePlayers()) {
            if (a.equals(toHide)) {
                continue;
            }
            for (Player b : canSee) {
                if (a.equals(b)) {
                continue;
                }
            }
            ((CraftPlayer)a).getHandle().playerConnection.sendPacket(new Packet29DestroyEntity(((CraftPlayer)toHide).getHandle().id));
            ((CraftPlayer)a).getHandle().playerConnection.sendPacket(new Packet24MobSpawn(toSpawn));
        }
    }
 
    public static void playerBackToPlayer(Player toShow, Player... cantSee) {
        for (Player a : Bukkit.getOnlinePlayers()) {
            if (a.equals(toShow)) {
                continue;
            }
            for (Player b : cantSee) {
                if (a.equals(b)) {
                    continue;
                }
            }
            ((CraftPlayer)a).getHandle().playerConnection.sendPacket(new Packet29DestroyEntity(((CraftPlayer) toShow).getHandle().id));
            ((CraftPlayer)a).getHandle().playerConnection.sendPacket(new Packet20NamedEntitySpawn(((CraftPlayer)toShow).getHandle()));
        }
    }

Many Devs will think this wont work, it wont make the Entity Move around when the player moves etc, well, it actually does.

Regards, DevRo_

 

This is only a small part of what API's do for you. This is what they do in the base of it, but this will not be persistent. This doesn't take in account for players teleporting to the disguised player, loging in near a disguised player, walking towards a disguised player, etc.. All of those will load the player as normal. API's do all the annoying lifting for you and keep everything synced up.

Edit: Also wanted to mention that this will not prevent crashes from occurring based on the client getting packets that simply don't match what the disguise is.

So using this may be good for a quick quick thing, but I wouldn't count on it for any long periods of time w/o crashes.

 

DevRosemberg Even if it doesn't work as planned, its the first utill i've seen on this topic. Most people just use the disguise API.

 

JPG2000 I know but many people who get hired and have to include this but dont want to use APIs will drop the job for that reason.

 

DevRosemberg
Someone who gets hired for a custom game shouldn't have to look on the Bukkit forums for a util for something as small as sending packets. If the case happens the employer won't allow any APIs to be used, then that developer is probably in the wrong place.

 

Just create a scheduler or a runnable which disguises (?) the player every x second(s)?

 

Panjab That's a bad way of doing it. Just use protocolLib and listenen for outgoing packet x.

 

DevRosemberg Why arent you using a switch-case for this ? I would be much more effective in this type of situation.

Code:java

public static void playerAsMob(Player toHide, EntityType mob, Player... canSee) {
    EntityLiving toSpawn = null;
    switch(mob) {
        case BAT:
            toSpawn = new EntityBat(((CraftPlayer) toHide).getHandle().world);
            break;
        case BLAZE:
            toSpawn = new EntityBlaze(((CraftPlayer) toHide).getHandle().world);
            break;
    }
}

 

macguy8 Well, in that case the developer wouldnt be that good to be hired for a project like that.
Goblom We are just talking about miliseconds here, you can change it if you want to though.

 

This isn't update proof. Though it's actually really easy to use reflection to fix that problem.
Also here:

Code:java

throw new IllegalArgumentException("Mob must be living entity other than a player. Provided: " + mob.toString());

You don't need toString() when appending a string. It automatically does that.

 

Conarnar Or simply change some 3's to 4's

 

Well I can guarantee one thing with using this.
Sooner or later.
Someone is going to crash.

 

they move because when the player moves it sends packets to the users with the id, not the entity, so if you make the entity have the same id as the player when you move, it will move.

 

SoThatsIt I don't know what you exactly mean since it's very unclear but when you use this way, you define that entity id x = mob y, so when the player with entity id x moves, it sends a packet to the server, and the server sends the move packet to the clients, since the clients think entity id x = mob y, they will see mob y moving around. This way of doing it is really not recommended. The best way to disguise people is done by libraryaddict in his Lib's disguises. It's compact and works perfect.

 

@devro_ 1.7.2 new one?

 

nubebuster Will work on it when i have time.

 

Y u no else if?

 

Garris0n Gona use a switch this time i think

 

Ew, switch. They only accept primitive "numbers", though, don't they?

 

this method exists for years...

 

I'm waiting for the update!

 

Why should somenone use this?

 

Georgeto Simpler than other Libraries.

 

DevRosemberg
@Globom is right. You should use a switch statement because your code is hurting my eyes. And, you should not use .equals(...), if you want to compare enums, use == instead.

 

Skyost

 

How would you do this for a block or a falling sand entity and texture it as say a grass block?

 

So much if, why not switch?

 

DevRosemberg can u please update this code for 1.7.9?
I tried to but i failed at updating the Packets!
Would be awesome.
And would be awesome if u can add me on Skype, : daluky.daluky

 

Switches accept anything. I usually use it for Materials.

 

No they don't.
http://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html