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[1.7.10]how to add a variable to entityplayer from server?


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I want to get a random number from server, and add the number to entityplayer class.


here is my simple thought



public void Prepare()


java.util.Random random=new java.util.Random();

int MaxPlayer=Minecraft.getMinecraft().theWorld.playerEntities.size();

int result=random.nextInt(MaxPlayer);

EntityPlayer ply;

for(int i=0;i<MaxPlayer;i++)






ply.addChatComponentMessage(new ChatComponentTranslation(ply.getDisplayName(), new Object[0]));




ply.getEntityData().setInteger("Team", 1);




ply.getEntityData().setInteger("Team", 2);







of course it's not working.


maybe the reason is client or server stuff,i don't know how to fix this.


could you tell me the property way to make it , thanks  a lot



PS: i know networking send messages can do that,but it seems a little complicated, is there  any easier way to do that?

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In 1.7 you need to assign IExtendedEntityProperties (IEEP) via @SubscribeEvent of EntityConstructingEvent.


IEEP is generally assigned on both sides, but it is entirely up to you.

If the data will be only used by server (nothing will be ever displayed to clients) you can assign IEEP only on server (!world.isRemote), otherwise assign on both.


Your IEEP class will need to hold that one integer generated during construction (mind that there is alredy Random instance in entity class).

If the value should be saved (not per-session) - you need to write/read it from NBT (all in IEEP interface).


If you need clients to ever see anything - you will always need to sync data (SimpleNetworkWrapper - SNW).



Sides: http://mcforge.readthedocs.io/en/latest/concepts/sides/


IEEP: http://mcforge.readthedocs.io/en/latest/datastorage/extendedentityproperties/

Implementation: http://www.minecraftforum.net/forums/mapping-and-modding/mapping-and-modding-tutorials/1571567-forge-1-6-4-1-8-eventhandler-and


SNW: www.minecraftforge.net/forum/index.php/topic,20135.0.html

Implementation: http://www.minecraftforum.net/forums/mapping-and-modding/mapping-and-modding-tutorials/2137055-1-7-x-1-8-customizing-packet-handling-with


Ask if you have a problem (but seriously, you ahve everything you need to make what you are after, use google for Event tutorials)

1.7.10 is no longer supported by forge, you are on your own.

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