Change serv.world to serv.worlds. Added playerPlugins/world.js and moved a lot of stuff from login.js there. Generating multiple worlds works and moving players there works as well. A few issues here and there.

doc/api.md

@@ -11,7 +11,7 @@
       - [serv.entityMaxId](#serventitymaxid)
       - [serv.players](#servplayers)
       - [serv.uuidToPlayer](#servuuidtoplayer)
-      - [serv.world](#servworld)
+      - [serv.worlds](#servworlds)
       - [serv.entities](#serventities)
       - [serv.bannedPlayers](#servbannedplayers)
       - [serv.time](#servtime)
@@ -41,6 +41,7 @@
       - [player.entity](#playerentity)
       - [player.username](#playerusername)
       - [player.view](#playerview)
+      - [player.world](#playerworld)
     - [Events](#events-1)
       - ["connected"](#connected)
       - ["spawned"](#spawned)
@@ -49,6 +50,7 @@
       - ["chat" (message)](#chat-message)
       - ["kicked" (kicker,reason)](#kicked-kickerreason)
       - ["positionChanged"](#positionchanged)
+      - ["teleport"](#teleport)
     - [Methods](#methods-1)
       - [player.login()](#playerlogin)
       - [player.ban(reason)](#playerbanreason)
@@ -62,6 +64,8 @@
       - [player.setGameMode(gameMode)](#playersetgamemodegamemode)
       - [player.handleCommand(command)](#playerhandlecommandcommand)
       - [player.updateHealth(health)](#playerupdatehealthhealth)
+      - [player.sendPosition(position, opt)](#playersendpositionposition-opt)
+      - [player.changeWorld(worldNumber, opt)](#playerchangeworldworldnumber-opt)
     - [Low level properties](#low-level-properties)
       - [player._client](#player_client)
     - [Low level methods](#low-level-methods)
@@ -98,9 +102,9 @@ Array of connected players
 
 Object uuid to players
 
-#### serv.world
+#### serv.worlds
 
-The map
+Array of all worlds. By default, 0 is Overworld, 1 is Nether, and 2 is the End, however any plugin may push more worlds (`serv.worlds.push(new World(...))`) and the player can be sent there with `player.changeWorld(worldNumber, opt)`.
 
 #### serv.entities
 
@@ -224,6 +228,10 @@ The username of the player
 
 The view size of the player, for example 8 for 16x16
 
+#### player.world
+
+Which world the player is in. Get it by using `serv.worlds[player.world]`.
+
 ### Events
 
 #### "connected" 
@@ -252,7 +260,11 @@ Fires when the player says `message`.
 
 #### "positionChanged"
 
-fires when the position changed
+fires when the position changes in small amounts (walking, running, or flying)
+
+#### "teleport"
+
+fires when the position changes in larger amounts (player's position set by `player.sendPosition()`)
 
 ### Methods
 
@@ -309,6 +321,24 @@ handle `command`
 
 update the player health.
 
+#### player.sendPosition(position, opt)
+
+Teleport the player to any `position` in the same world. Use `player.changeWorld` to teleport to any world. Options:
+
+- yaw: Set the yaw, default is the current yaw of the player
+- pitch: Set the pitch, default is the current pitch of the player
+
+#### player.changeWorld(worldNumber, opt)
+
+Change which world the player is in (Overworld, Nether, End, or any other world added to `serv.worlds`). Options:
+
+- gamemode: Gamemode of the world (Default is player gamemode)
+- difficulty: Difficulty of world. Default is 0 (easiest)
+- dimension: Dimension of world. 0 is Overworld, -1 is Nether, 1 is End (Default is 0)
+- position: Position player spawns, default is their default spawn point
+- yaw: Yaw in which they spawn, default is 0
+- pitch: Pitch in which they spawn, default is 0
+
 ### Low level properties
 
 #### player._client

src/lib/playerPlugins/blocks.js

@@ -2,12 +2,13 @@ module.exports=inject;
 
 function inject(serv,player)
 {
-  function changeBlock(position,blockType)
+  async function changeBlock(position,blockType)
   {
-    player.getOthers().forEach(function(player) {
-      player.sendBlock(position, blockType);
+    player.getOthers().forEach(function(p) {
+      if (p.world != player.world) return;
+      p.sendBlock(position, blockType);
     });
-    return serv.world.setBlockType(position,blockType);
+    return await player.world.setBlockType(position,blockType);
   }
   
   function sendBlock(position, blockType) { // Call from serv.setBlock unless you want "local" fake blocks

src/lib/playerPlugins/chest.js

@@ -8,8 +8,8 @@ function inject(serv, player)
     var referencePosition=new vec3(packet.location.x,packet.location.y,packet.location.z);
     if (player.entity.crouching) return;
     try {
-      var id = await serv.world.getBlockType(referencePosition);
-      var blockAbove = await serv.world.getBlockType(referencePosition.clone().add(new vec3(0, 1, 0)));
+      var id = await player.world.getBlockType(referencePosition);
+      var blockAbove = await player.world.getBlockType(referencePosition.clone().add(new vec3(0, 1, 0)));
 
       if (id == 54) {
         if (blockAbove) {

src/lib/playerPlugins/digging.js

@@ -6,7 +6,7 @@ function inject(serv,player)
 {
   player._client.on("block_dig",function(packet){
     var pos=new Vec3(packet.location);
-    serv.world.getBlock(pos)
+    player.world.getBlock(pos)
       .then(block => {
         currentlyDugBlock=block;
         if(currentlyDugBlock.type==0) return;

src/lib/playerPlugins/login.js

@@ -1,5 +1,4 @@
 var Entity=require("prismarine-entity");
-var spiralloop = require('spiralloop');
 var Vec3=require("vec3");
 
 module.exports=inject;
@@ -15,6 +14,7 @@ function inject(serv,player)
     player.entity.health = 20;
     player.entity.food = 20;
     player.view=8;
+    player.world=serv.overworld;
     player.username=player._client.username;
     serv.players.push(player);
     serv.uuidToPlayer[player._client.uuid] = player;
@@ -40,61 +40,16 @@ function inject(serv,player)
     player.entity.position=toFixedPosition(player.spawnPoint);
   }
 
-  function spiral(arr)
-  {
-    var t=[];
-    spiralloop(arr,function(x,z){
-      t.push([x,z]);
-    });
-    return t;
-  }
-
-
-  function sendChunk(chunkX,chunkZ,column)
-  {
-    player._client.write('map_chunk', {
-      x: chunkX,
-      z: chunkZ,
-      groundUp: true,
-      bitMap: 0xffff,
-      chunkData: column.dump()
-    });
-    return Promise.resolve();
-  }
-
-  function sendChunksAroundPlayer(view)
-  {
-    player.lastPositionChunkUpdated=player.entity.position;
-    var playerChunkX=Math.floor(player.entity.position.x/16/32);
-    var playerChunkZ=Math.floor(player.entity.position.z/16/32);
-    return spiral([view*2,view*2])
-      .map(t => ({
-        chunkX:playerChunkX+t[0]-view,
-        chunkZ:playerChunkZ+t[1]-view
-      }))
-      .filter(({chunkX,chunkZ}) => {
-        var key=chunkX+","+chunkZ;
-        var loaded=player.loadedChunks[key];
-        if(!loaded) player.loadedChunks[key]=1;
-        return !loaded;
-      })
-      .reduce((acc,{chunkX,chunkZ})=>
-         acc
-          //.then(() => sleep(100))
-          .then(() => serv.world.getColumn(chunkX,chunkZ))
-          .then((column) => sendChunk(chunkX,chunkZ,column))
-      ,Promise.resolve());
-  }
-
   function sendMap()
   {
-    return sendChunksAroundPlayer(3);
+    return player.sendNearbyChunks(3)
+      .catch((err) => setTimeout(function() { throw err; }), 0);
   }
 
   function sendRestMap()
   {
     player.sendingChunks=true;
-    sendChunksAroundPlayer(player.view)
+    player.sendNearbyChunks(player.view)
       .then(() => player.sendingChunks=false)
       .catch((err)=> setTimeout(function(){throw err;},0));
 
@@ -102,20 +57,19 @@ function inject(serv,player)
       if(!player.sendingChunks && player.entity.position.distanceTo(player.lastPositionChunkUpdated)>16*32)
       {
         player.sendingChunks=true;
-        sendChunksAroundPlayer(player.view)
+        player.sendNearbyChunks(player.view)
           .then(() => player.sendingChunks=false)
           .catch((err)=> setTimeout(function(){throw err;},0));
       }
     });
+    player.on("teleport", function() {
+      player.sendingChunks=true;
+      player.sendNearbyChunks(player.view)
+        .then(() => player.sendingChunks=false)
+        .catch((err)=> setTimeout(function(){throw err;},0));
+    });
   }
 
-
-  function sleep(ms = 0) {
-    return new Promise(r => setTimeout(r, ms));
-  }
-
-
-
   function sendSpawnPosition()
   {
     console.log("setting spawn at "+player.spawnPoint);
@@ -124,21 +78,6 @@ function inject(serv,player)
     });
   }
 
-  function sendInitialPosition()
-  {
-    player.entity.position=toFixedPosition(player.spawnPoint);
-    player.entity.yaw=0;
-    player.entity.pitch=0;
-    player._client.write('position', {
-      x: player.entity.position.x/32,
-      y: player.entity.position.y/32,
-      z: player.entity.position.z/32,
-      yaw: player.entity.yaw,
-      pitch: player.entity.pitch,
-      flags: 0x00
-    });
-  }
-
   function updateTime()
   {
     player._client.write('update_time', {
@@ -182,41 +121,6 @@ function inject(serv,player)
 
   }
 
-
-  function spawnOthers()
-  {
-    player.getOthers().forEach(function (otherPlayer) {
-      player._client.write('named_entity_spawn', {
-        entityId: otherPlayer.entity.id,
-        playerUUID: otherPlayer._client.uuid,
-        x: otherPlayer.entity.position.x,
-        y: otherPlayer.entity.position.y,
-        z: otherPlayer.entity.position.z,
-        yaw: otherPlayer.entity.yaw,
-        pitch: otherPlayer.entity.pitch,
-        currentItem: 0,
-        metadata: otherPlayer.entity.metadata
-      });
-    });
-
-  }
-
-  function spawn()
-  {
-    player._writeOthers('named_entity_spawn',{
-      entityId: player.entity.id,
-      playerUUID: player._client.uuid,
-      x: player.entity.position.x,
-      y: player.entity.position.y,
-      z: player.entity.position.z,
-      yaw: player.entity.yaw,
-      pitch: player.entity.pitch,
-      currentItem: 0,
-      metadata: player.entity.metadata
-    });
-  }
-
-
   function announceJoin()
   {
     serv.broadcast(player.username + ' joined the game.', "yellow");
@@ -238,7 +142,6 @@ function inject(serv,player)
     sendLogin();
     await sendMap();
     sendSpawnPosition();
-    sendInitialPosition();
     player.updateHealth(player.entity.health);
 
     player.emit("spawned");
@@ -246,9 +149,8 @@ function inject(serv,player)
     updateTime();
     setGameMode(player.gameMode);
     fillTabList();
-    spawnOthers();
-    spawn();
 
+    player.spawn();
     announceJoin();
 
     setTimeout(sendRestMap,100);
@@ -256,6 +158,4 @@ function inject(serv,player)
 
   player.setGameMode=setGameMode;
   player.login=login;
-  player.sendInitialPosition=sendInitialPosition;
-  player.spawn=spawn;
 }

src/lib/playerPlugins/updatePositions.js

@@ -82,4 +82,24 @@ function inject(serv,player)
     player.entity.onGround = onGround;
     player.emit("positionChanged");
   }
+
+  function setPosition(pos, opt) {
+    opt = opt || {};
+    if (pos) player.entity.position = toFixedPosition(pos);
+    if (typeof opt.yaw != 'undefined') player.entity.yaw=opt.yaw;
+    if (typeof opt.pitch != 'undefined') player.entity.pitch=opt.pitch;
+    
+    player._client.write('position', {
+      x: player.entity.position.x/32,
+      y: player.entity.position.y/32,
+      z: player.entity.position.z/32,
+      yaw: player.entity.yaw,
+      pitch: player.entity.pitch,
+      flags: 0x00
+    });
+    player.spawnForOthers();
+    player.getNearbyPlayers();
+    player.emit('teleport');
+  }
+  player.setPosition = setPosition;
 }

src/lib/playerPlugins/world.js

@@ -0,0 +1,124 @@
+var vec3=require("vec3");
+var spiralloop = require('spiralloop');
+
+module.exports = inject;
+
+function inject(serv, player) {
+  function spawn() {
+    player.setPosition(player.spawnPoint, { yaw: 0, pitch: 0, exact: true });
+  }
+
+  function spawnForOthers() {
+    player._writeOthers('named_entity_spawn',{ // _writeOthersWithinDistance?
+      entityId: player.entity.id,
+      playerUUID: player._client.uuid,
+      x: player.entity.position.x,
+      y: player.entity.position.y,
+      z: player.entity.position.z,
+      yaw: player.entity.yaw,
+      pitch: player.entity.pitch,
+      currentItem: 0,
+      metadata: player.entity.metadata
+    });
+  }
+
+  function getNearbyPlayers() {
+    player.getOthers().forEach(function (otherPlayer) {
+      if (otherPlayer.world != player.world) return; // Also check distance from player?
+      player._client.write('named_entity_spawn', {
+        entityId: otherPlayer.entity.id,
+        playerUUID: otherPlayer._client.uuid,
+        x: otherPlayer.entity.position.x,
+        y: otherPlayer.entity.position.y,
+        z: otherPlayer.entity.position.z,
+        yaw: otherPlayer.entity.yaw,
+        pitch: otherPlayer.entity.pitch,
+        currentItem: 0,
+        metadata: otherPlayer.entity.metadata
+      });
+    });
+  }
+
+  function sendChunk(chunkX,chunkZ,column)
+  {
+    player._client.write('map_chunk', {
+      x: chunkX,
+      z: chunkZ,
+      groundUp: true,
+      bitMap: 0xffff,
+      chunkData: column.dump()
+    });
+    return Promise.resolve();
+  }
+
+  function spiral(arr)
+  {
+    var t=[];
+    spiralloop(arr,function(x,z){
+      t.push([x,z]);
+    });
+    return t;
+  }
+
+  function sendNearbyChunks(view, world)
+  {
+    world = world || player.world;
+    player.lastPositionChunkUpdated=player.entity.position;
+    var playerChunkX=Math.floor(player.entity.position.x/16/32);
+    var playerChunkZ=Math.floor(player.entity.position.z/16/32);
+
+    return spiral([view*2,view*2])
+      .map(t => ({
+        chunkX:playerChunkX+t[0]-view,
+        chunkZ:playerChunkZ+t[1]-view
+      }))
+      .filter(({chunkX,chunkZ}) => {
+        var key=chunkX+","+chunkZ;
+        var loaded=player.loadedChunks[key];
+        if(!loaded) player.loadedChunks[key]=1;
+        return !loaded;
+      })
+      .reduce((acc,{chunkX,chunkZ})=>
+         acc
+          //.then(() => sleep(100))
+          .then(() => world.getColumn(chunkX,chunkZ))
+          .then((column) => player.sendChunk(chunkX,chunkZ,column))
+      ,Promise.resolve());
+  }
+
+  function sleep(ms = 0) {
+    return new Promise(r => setTimeout(r, ms));
+  }
+
+  function changeWorld(world, opt) {
+
+    opt = opt || {};
+    player.world = world;
+    player.loadedChunks={};
+    if (typeof opt.gamemode != 'undefined') player.gameMode = opt.gamemode;
+    player._client.write("respawn",{
+      dimension: opt.dimension || 0,
+      difficulty: opt.difficulty || 0,
+      gamemode: opt.gamemode || player.gameMode,
+      levelType:'default'
+    });
+    player.emit('change_world');
+    player.setPosition(opt.position || player.spawnPoint, { yaw: opt.yaw || 0, pitch: opt.pitch || 0 }); // Automatically sends chunks around players
+  }
+
+  player.spawn = spawn;
+  player.spawnForOthers = spawnForOthers;
+  player.getNearbyPlayers = getNearbyPlayers;
+  player.sendNearbyChunks = sendNearbyChunks;
+  player.changeWorld = changeWorld;
+  player.sendChunk = sendChunk;
+
+  player.on('chat', function(message) {
+    if (message == 'world') {
+      player.changeWorld(serv.netherworld, {
+        position: new vec3(0, 60, 0),
+        dimension: -1
+      });
+    }
+  });
+}

src/lib/serverPlugins/daycycle.js

@@ -2,22 +2,22 @@
 module.exports = inject;
 
 function inject(serv, settings) {
-	serv.setTime = function(time) {
-		serv.time = time;
-		serv._writeAll('update_time', {
-			age: [0, 0], // TODO
-			time: [0, serv.time]
-		});
-	}
+  serv.setTime = function(time) {
+    serv.time = time;
+    serv._writeAll('update_time', {
+      age: [0, 0], // TODO
+      time: [0, serv.time]
+    });
+  }
 
-	serv.doDaylightCycle = true;
+  serv.doDaylightCycle = true;
 
-	serv.time = 0;
+  serv.time = 0;
 
-	serv.on('tick', function(count) {
-		if (!serv.doDaylightCycle) return;
-		if (count % 20 == 0) {
+  serv.on('tick', function(count) {
+    if (!serv.doDaylightCycle) return;
+    if (count % 20 == 0) {
       serv.setTime((serv.time + 20) % 24000); // Vanilla only does it every second
-		 }
-	})
+     }
+  })
 }

src/lib/serverPlugins/tick.js

@@ -2,24 +2,24 @@
 module.exports = inject;
 
 function inject(serv, settings) {
-	serv.setTickInterval = setTickInterval;
-	serv.stopTickInterval = stopTickInterval;
-	serv.tickCount = 0;
+  serv.setTickInterval = setTickInterval;
+  serv.stopTickInterval = stopTickInterval;
+  serv.tickCount = 0;
 
-	serv.setTickInterval(20);
+  serv.setTickInterval(20);
 }
 
 function setTickInterval(ticksPerSecond) {
-	var serv = this;
-	serv.stopTickInterval();
+  var serv = this;
+  serv.stopTickInterval();
 
-	serv.tickInterval = setInterval(function() {
-		serv.tickCount++;
-		serv.emit('tick', serv.tickCount);
-	}, 1000/ticksPerSecond);
+  serv.tickInterval = setInterval(function() {
+    serv.tickCount++;
+    serv.emit('tick', serv.tickCount);
+  }, 1000/ticksPerSecond);
 }
 
 function stopTickInterval() {
-	if (this.tickInterval) clearInterval(serv.tickInterval);
-	this.tickInterval = null;
+  if (this.tickInterval) clearInterval(serv.tickInterval);
+  this.tickInterval = null;
 }

src/lib/serverPlugins/world.js

@@ -7,14 +7,32 @@ var generations={
   'grass_field':require("../worldGenerations/grass_field"),
   'diamond_square':require("../worldGenerations/diamond_square"),
   'superflat':require("../worldGenerations/superflat"),
-  'all_the_blocks':require("../worldGenerations/all_the_blocks")
+  'all_the_blocks':require("../worldGenerations/all_the_blocks"),
+  'nether':require("../worldGenerations/nether")
 };
 
 module.exports = inject;
 
-function inject(serv,{regionFolder,generation={"name":"diamond_square","options":{"worldHeight":80}}}={}) {
+function inject(serv,{generation={"name":"diamond_square","options":{"worldHeight":80}}}={}) {
   generation.options.seed=generation.options.seed || Math.random()*Math.pow(2, 32);
   serv.emit("seed",generation.options.seed);
-  serv.world = new World(generations[generation.name](generation.options),regionFolder);
-  serv._worldSync=new WorldSync(serv.world);
-}
+  serv.overworld = new World(generations[generation.name](generation.options));
+  serv.netherworld = new World(generations["nether"]({}));
+  //serv.endworld = new World(generations["end"]({}));
+
+  //serv._worldSync=new WorldSync(serv.worlds[0]);
+
+  function pregenWorld(world, size=10) {
+    for (var x = -size; x < size; x++) {
+      for (var z = -size; z < size; z++) {
+        world.getColumn(x, z);
+      }
+    }
+  }
+  serv.pregenWorld = pregenWorld;
+
+  serv.pregenWorld(serv.overworld);
+  serv.log('Pre-Generated Overworld');
+  serv.pregenWorld(serv.netherworld);
+  serv.log('Pre-Generated Nether');
+}

src/lib/worldGenerations/nether.js

@@ -0,0 +1,31 @@
+var Chunk = require('prismarine-chunk')(require("../version"));
+var Vec3 = require('vec3');
+
+function generation({level=50}={}) {
+  function generateChunk(chunkX, chunkZ) {
+    var chunk=new Chunk();
+    for (var x = 0; x < 16; x++) {
+      for (var z = 0; z < 16; z++) {
+        var bedrockheighttop = 1 + Math.round(Math.random()*3)
+        var bedrockheightbottom = 1 + Math.round(Math.random()*3)
+        for (var y = 0; y < 128; y++) { // Nether only goes up to 128
+          let block;
+          let data;
+
+          if (y < bedrockheightbottom) block = 7;
+          else if (y < 50) block = 87;
+          else if (y > 127 - bedrockheighttop) block = 7;
+
+          var pos = new Vec3(x, y, z);
+          if (block) chunk.setBlockType(pos, block);
+          if (data) chunk.setBlockData(pos, data);
+          // Don't need to set light data in nether
+        }
+      }
+    }
+    return chunk;
+  }
+  return generateChunk;
+}
+
+module.exports = generation;