Some kind of access to the Console. . .

yahwho · Apr 3rd 2018

It would be great to have some kind of access the games console via the API.

I'm imagining something like this sudocode:

Code

Console c = this.server.getConsole();


int id = 1;
c.execute("spawnnpc dummy id " + id);

Why? Well I would like to let people spawn NPCs dummies into their builds, but I want to *limit* this (depending on game time). I don't want to allow a new player, who may just be on the server to cause chaos to go around spawning 100's (if not 1000's) of NPCs (which someone could do with a script if blanket access was allowed).

I would also like to be able to easily write a plugin to spawn NPC animals. I've had a look at the API and I can't see any calls in there that would allow me to do this. The only way round I can see is to directly add new NPCs via the main database. Something I don't like doing hence my own database and own tables for Medieval Realms!

Something like this would be great!

Code

for ( int i = 0 ; i < TOTAL ; i++ ) {


   c.execute("spawnnpc cow id " + some_id_number);


}

P.s. I know this is sudocode; I'm not sure how you can spawn anything with an ID number as I've not looked into it yet, but we'll defo need ID numbers on the spawns if we are to keep track of them

Minotorious · Apr 3rd 2018

you could set up permission groups with an automatic ranking system (e.g. my ServerTools plugin has one included, or I could send you the code to implement one in your own plugin if you don't want to use a separate one) so that they get to a permission group after having spent some time on the server.

Then the permission group they get to will have in it deny: -* (means all), then allow: -spawnnpc (to give them access to this command only)

Unfortunately this way you cannot limit the number of NPCs per player.

Tbh I would like to have console access or at least all the console commands available through the API too.

I would also like to see a way to obtain for instance the current setr, setl, setp, rotation, etc. settings of a player or maybe have an event e.g. creativeSettingChangeEvent called when a player changes one of those setting with an event.getChangeType() kind of flag to see which of the settings was changed because having a setrChangeEvent, setlChangeEvent, setpChangeEvent, rotationChangeEvent sounds a bit silly to me XD

yahwho · Apr 3rd 2018

Hmm the problem there is that giving access to *every* spawnnpc command, allowing players to spawn not just the "dummies"

I had wanted to control the amount on an individual (automated) basis.

Quote from Minotorious

Tbh I would like to have console access or at least all the console commands available through the API too.

I totally agree there!

I would also like to map certain commands to keys, like setr/setl/setp that you mentioned. Would be so time saving when building with planks and beams using a key press rather than typing in setr 1 setr15 all the time (which I seem to be doing more and more often).

I *think* it may be possible to do what I'm asking with direct database writes to the main world database ( x1000 ) . . . but that will require a LOT of work and LOT of testing on a none-live server before I would even consider adding it to a live world.

Hopefully @red51 will heed our calls and add API calls for all the console commands in the near future

Minotorious · Apr 3rd 2018

Quote from yahwho

I *think* it may be possible to do what I'm asking with direct database writes to the main world database ( x1000 ) . . . but that will require a LOT of work and LOT of testing on a none-live server before I would even consider adding it to a live world.

I don't think it is possible, I have tried for instance to turn a furnace on by a direct database edit but it didn't work because the server is using a cached version of the database when online and saves to the actual database every few seconds, thus doesn't read my change on the fly

yahwho · Apr 3rd 2018

Thanks for letting me know, that's a real shame. Has kind of scuppered a lot of my "workaround" plans. But at least I won't be wasting time trying to work it out only to fail!

Even more need now for the API functions!

red51 · Apr 5th 2018

Sorry for my late response! I will add a way to execute console commands with the next update

However, if you want to spawn npc's, you can use the spawnNpc() method in the World class: https://javadoc.rising-world.n…rld.api.utils.Quaternion-

For example:

Code

//get a reference to the world class
World world = getWorld();


//spawn a bear (id 7)
world.spawnNpc((short) 7, new Vector3f(...), Quaternion.IDENTITY);

Or alternatively you can make use of definitions (if you don't know a certain npc id, for example):

Code

//get the npc definition for a bear
Definitions.NpcDefinition npcDef = Definitions.getNpcDefinition("bear");


//spawn the npc
getWorld().spawnNpc((short)npcDef.getID(), new Vector3f(...), Quaternion.IDENTITY);

Spawn an npc in front of a player (unfortunately there is no util function for that available, but it will be added soon):

Code

//the player
Player player = ...;


//we want to spawn the npc in front of the player.
//So first we create a new unit vector which shows towards north (+Z)
Vector3f position = new Vector3f(0f, 0f, 1f);


//get the player position and rotation
Vector3f playerPos = player.getPosition();
Quaternion playerRot = player.getRotation();


//multiply rotation by a vector. As a result, the rotation will
//be applied to the vector
playerRot.multLocal(position);


//we don't want the npc to spawn higher or lower than the player, so we set
//y to 0. Remember to normalize the vector after doing that!
position.setY(0f).normalizeLocal();


//we want the npc to look into the player direction, so we create a new
//quaternion, use the "lookAt()" function and and provide the negated 
//vector as direction (do not use the original vector, instead create 
//a new one and negate it!)
Quaternion rotation = new Quaternion();
rotation.lookAt(new Vector3f(position).negateLocal());


//we want the npc to spawn 5 units in front of the player, so we multiply 
//the vector by 5
position.multLocal(5f);


//finally add the current player position to the vector
position.addLocal(playerPos);


//spawn the npc, this time it's a cow (id 2)
getWorld().spawnNpc((short) 2, position, rotation);

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yahwho · Apr 5th 2018

danke vielmals!

Thanks Red that's awesome!!

Participate now!