Spawn Fake Entities With Packets

Hello Bukkit forums,
today I wanted to ask if someone could tell me how to "spawn" entities with packets. As "simple" as that.
BTW, I used the search function and didn't found anything, if there is a thread about this, and i didn't find it, I'm sorry.

Here is my current code:

Code (open) Code (close)

Code:

    public void sendToPlayer(Player p){
        PacketPlayOutSpawnEntityLiving create = new PacketPlayOutSpawnEntityLiving();

        setField(create,create.getClass(),"a",this.entityId);
        setField(create,create.getClass(),"b",(byte) type.getTypeId());
        setField(create,create.getClass(),"c",toFixedPoint(_location.getX()));
        setField(create,create.getClass(),"d",toFixedPoint(_location.getY()));
        setField(create,create.getClass(),"e",toFixedPoint(_location.getZ()));
        setField(create,create.getClass(),"f",(byte) 0);
        setField(create,create.getClass(),"g",(byte) 0);
        setField(create,create.getClass(),"h",(byte) 0);
        setField(create,create.getClass(),"i",(short) 0);
        setField(create,create.getClass(),"j",(short) 0);
        setField(create,create.getClass(),"k",(short) 0);


        ((CraftPlayer) p).getHandle().playerConnection.sendPacket(create);
    }

So, now I get a DecoderException from Netty every time I try to spawn an entity.
I hope some Bukkit coding god could help me

Merry Christmas,
Freack100

 

@Freack100 Can't you just use your packets arguments?

 

@Skionz
Oh, umm, never saw that the Packet takes arguments
Thanks!

 

@Freack100 Yea no need for reflection.

 

@Skionz
Now there is a new problem... I know what kind of Class it takes (EntityLiving) but I don't know how to:
1. Tell the FakeEntity class which entity class it should use
2. Create a new instance of the entity to send it with the packet

Here is my current code:

Show Spoiler Hide Spoiler

Code:

    public void sendToPlayer(Player p) {
        PacketPlayOutSpawnEntityLiving create = null;
        try {
            EntityLiving entity = (EntityLiving) entityClass.getConstructors()[0].newInstance((net.minecraft.server.v1_7_R4.World)p.getLocation().getWorld());
            entity.setLocation(_location.getX(),_location.getY(),_location.getZ(),_location.getYaw(),_location.getPitch());
            entity.setHealth(20);
            entity.spawnIn((World) p.getWorld());
            create = new PacketPlayOutSpawnEntityLiving(entity);
        } catch (Exception e) {
            e.printStackTrace();
        }

        if (create != null) {
            ((CraftPlayer) p).getHandle().playerConnection.sendPacket(create);
        }
    }

#EDIT:
entityClass is :

Code:

private Class<? extends Entity> entityClass; 

and it is initialized in the constructor.

 

Bump

 

Bump

 

I don't know if you still need it, but...

Code:

//for spawning an armorstand, but other entities will work too
public void spawn(Location loc, Player p) {
        WorldServer s = ((CraftWorld)loc.getWorld()).getHandle();
        EntityArmorStand stand = new EntityArmorStand(s);
       
        stand.setLocation(loc.getX(), loc.getY(), loc.getZ(), 0, 0);
        stand.setCustomName("I'm a Armorstand!");
        stand.setCustomNameVisible(true);
        stand.setGravity(true);
        //and so on
       
        PacketPlayOutSpawnEntityLiving packet = new PacketPlayOutSpawnEntityLiving(stand);
        ((CraftPlayer)p).getHandle().playerConnection.sendPacket(packet);
    }

works fine for me