Trying to work on sending entities, fair amount of broken stuff

src/lib/playerPlugins/communication.js

@@ -8,15 +8,17 @@ function inject(serv,player)
       .forEach((otherPlayer) => otherPlayer._client.write(packetName, packetFields));
 
   player._writeOthersNearby = (packetName, packetFields) =>
-    serv._writeArray(packetName, packetFields, player.nearbyPlayers);
+    serv._writeArray(packetName, packetFields, player.nearbyPlayers());
 
   player.getOthers = () => serv.players.filter((otherPlayer) => otherPlayer != player);
 
-  player.getNearby = () => serv
-    .getNearby({
-      world: player.world,
-      position: player.entity.position,
-      radius: player.playerViewDistance*32
-    })
-    .filter((p) => p != player);
+  player.getNearbyPlayers = (radius=player.entity.viewDistance*32) => serv.getNearby({
+    world: player.world,
+    position: player.position,
+    radius: radius
+  });
+
+  player.nearbyPlayers = (radius=player.entity.viewDistance*32) => player.entity.nearbyEntities
+    .filter(e => e.type == 'player')
+    .map(e => e.player);
 }

src/lib/playerPlugins/login.js

@@ -7,46 +7,25 @@ function inject(serv,player)
 {
   function addPlayer()
   {
-    serv.entityMaxId++;
-    player.entity=new Entity(serv.entityMaxId);
-    serv.entities[player.entity.id]=player.entity;
+    player.entity=serv.initEntity('player', null, serv.overworld, Vec3(0,0,0));
+    player.entity.type = 'player';
     player.entity.player=player;
     player.entity.health = 20;
     player.entity.food = 20;
     player.entity.crouching = false; // Needs added in prismarine-entity later
-    player.playerViewDistance = 150;
     player.view=10;
     player.world=serv.overworld;
     player.username=player._client.username;
     serv.players.push(player);
     serv.uuidToPlayer[player._client.uuid] = player;
     player.loadedChunks={};
-    player.nearbyPlayers=[];
   }
 
-  player.updateAndSpawnNearbyPlayers = () =>
-  {
-    player.lastPositionPlayersUpdated=player.entity.position;
-    var updatedPlayers=player.getNearby();
-    var playersToAdd=updatedPlayers.filter(p => player.nearbyPlayers.indexOf(p)==-1);
-    var playersToRemove=player.nearbyPlayers.filter(p => updatedPlayers.indexOf(p)==-1);
-    player.despawnPlayers(playersToRemove);
-    playersToAdd.forEach(player.spawnAPlayer);
-
-    playersToRemove.forEach(p => p.despawnPlayers([player]));
-    playersToRemove.forEach(p => p.nearbyPlayers=p.getNearby());
-    playersToAdd.forEach(p => p.spawnAPlayer(player));
-    playersToAdd.forEach(p => p.nearbyPlayers=p.getNearby());
-
-    player.nearbyPlayers=updatedPlayers;
-
-  };
-
   function sendPlayersWhenMove()
   {
     player.on("positionChanged",() => {
       if(player.entity.position.distanceTo(player.lastPositionPlayersUpdated)>2*32)
-        player.updateAndSpawnNearbyPlayers();
+        player.entity.updateAndSpawn();
     });
   }
 
@@ -167,7 +146,7 @@ function inject(serv,player)
     updateTime();
     player.setGameMode(player.gameMode);
     fillTabList();
-    player.updateAndSpawnNearbyPlayers();
+    player.entity.updateAndSpawn();
 
     announceJoin();
     player.emit("spawned");

src/lib/playerPlugins/logout.js

@@ -8,6 +8,10 @@ function inject(serv,player)
     });
   };
 
+  player.despawnEntities = entities => player._client.write('entity_destroy', {
+    'entityIds': entities.map(e => e.id)
+  });
+
   player._client.on('end', () => {
     if(player.entity) {
       serv.broadcast(player.username + ' quit the game.', "yellow");
@@ -17,7 +21,7 @@ function inject(serv,player)
           UUID: player._client.uuid
         }]
       });
-      player.nearbyPlayers.forEach(otherPlayer => otherPlayer.despawnPlayers([player]));
+      player.nearbyPlayers().forEach(otherPlayer => otherPlayer.despawnPlayers([player]));
       delete serv.entities[player.entity.id];
       player.emit('disconnected');
       var index = serv.players.indexOf(player);

src/lib/playerPlugins/updatePositions.js

@@ -47,7 +47,7 @@ function inject(serv,player)
 
   function sendRelativePositionChange(newPosition, onGround) {
     if (player.entity.position.distanceTo(new vec3(0, 0, 0)) != 0) {
-      var diff = newPosition.scaled(1/32).scaled(32).minus(player.entity.position.scaled(1/32).scaled(32));
+      var diff = newPosition.minus(player.entity.position);
       if(diff.abs().x>127 || diff.abs().y>127 || diff.abs().z>127)
       {
         player._writeOthersNearby('entity_teleport', {

src/lib/playerPlugins/world.js

@@ -5,18 +5,8 @@ module.exports = inject;
 
 function inject(serv, player) {
 
-  player.spawnAPlayer = spawnedPlayer => {
-    player._client.write('named_entity_spawn', {
-      entityId: spawnedPlayer.entity.id,
-      playerUUID: spawnedPlayer._client.uuid,
-      x: spawnedPlayer.entity.position.x,
-      y: spawnedPlayer.entity.position.y,
-      z: spawnedPlayer.entity.position.z,
-      yaw: spawnedPlayer.entity.yaw,
-      pitch: spawnedPlayer.entity.pitch,
-      currentItem: 0,
-      metadata: spawnedPlayer.entity.metadata
-    });
+  player.spawnEntity = entity => {
+    player._client.write(entity.spawnPacketName, entity.getSpawnPacket());
   };
 
   player.sendChunk = (chunkX,chunkZ,column) =>
@@ -96,6 +86,7 @@ function inject(serv, player) {
     if(player.world == world) return Promise.resolve();
     opt = opt || {};
     player.world = world;
+    player.entity.world = world;
     player.loadedChunks={};
     if (typeof opt.gamemode != 'undefined') player.gameMode = opt.gamemode;
     player._client.write("respawn",{

src/lib/serverPlugins/communication.js

@@ -15,4 +15,11 @@ function inject(serv,settings)
       player.world == world &&
       player.entity.position.distanceTo(position) <= radius
   );
+
+  serv.getNearbyEntities= ({world,position,radius=8*16*32}) => Object.keys(serv.entities)
+    .map(eId => serv.entities[eId])
+    .filter(entity =>
+      entity.world == world &&
+      entity.position.distanceTo(position) <= radius
+  );
 }

src/lib/serverPlugins/entities.js

@@ -11,23 +11,30 @@ function inject(serv) {
     serv.entityMaxId++;
     var entity = new Entity(serv.entityMaxId);
     entity.type = type;
+    entity.spawnPacketName = '';
     entity.entityType = entityType;
     entity.world = world;
     entity.position = position;
+    entity.nearbyEntities = [];
+    entity.viewDistance = 15;
 
     entity.bornTime = Date.now();
     serv.entities[entity.id] = entity;
 
+    if (entity.type == 'player') entity.spawnPacketName = 'named_entity_spawn';
+    else if (entity.type == 'object') entity.spawnPacketName = 'spawn_entity';
+    else if (entity.type == 'mob') entity.spawnPacketName = 'spawn_entity_living';
+
     entity.setMetadata = (data) => {
       serv._writeNearby('entity_metadata', {
         entityId: entity.id,
         metadata: data
       }, entity);
-    }
+    };
 
     entity.destroy = () => {
       serv.destroyEntity(entity);
-    }
+    };
 
     entity.calculatePhysics = async (delta) => {
       if (entity.gravity) {
@@ -63,7 +70,7 @@ function inject(serv) {
 
       //serv.emitParticle(30, serv.overworld, entity.position.scaled(1/32), { size: vec3(0, 0, 0) });
       return { oldPos: oldPos, onGround: yBlock}
-    }
+    };
 
     entity.sendPosition = ({oldPos,onGround}) => {
       var diff = entity.position.minus(oldPos);
@@ -86,6 +93,85 @@ function inject(serv) {
         }, entity);
     }
 
+    entity.getSpawnPacket = () => {
+      var scaledVelocity = entity.velocity.scaled(8000/32/20).floored(); // from fixed-position/second to unit => 1/8000 blocks per tick
+      if (entity.type == 'player') {
+        return {
+          entityId: entity.id,
+          playerUUID: entity.player._client.uuid,
+          x: entity.position.x,
+          y: entity.position.y,
+          z: entity.position.z,
+          yaw: entity.yaw,
+          pitch: entity.pitch,
+          currentItem: 0,
+          metadata: entity.metadata
+        }
+      } else if (entity.type == 'object') {
+        return {
+          entityId: entity.id,
+          type: entity.entityType,
+          x: entity.position.x,
+          y: entity.position.y,
+          z: entity.position.z,
+          pitch: entity.pitch,
+          yaw: entity.yaw,
+          objectData: {
+            intField: entity.data,
+            velocityX: scaledVelocity.x,
+            velocityY: scaledVelocity.y,
+            velocityZ: scaledVelocity.z
+          }
+        }
+      } else if (entity.type == 'mob') {
+        return {
+          entityId: entity.id,
+          type: entity.entityType,
+          x: entity.position.x,
+          y: entity.position.y,
+          z: entity.position.z,
+          yaw: entity.yaw,
+          pitch: entity.pitch,
+          headPitch: entity.headPitch,
+          velocityX: scaledVelocity.x,
+          velocityY: scaledVelocity.y,
+          velocityZ: scaledVelocity.z,
+          metadata: entity.metadata
+        }
+      }
+    };
+
+    entity.getNearby = () => serv
+      .getNearbyEntities({
+        world: entity.world,
+        position: entity.position,
+        radius: entity.viewDistance*32
+      })
+      .filter((e) => e != entity);
+
+    entity.updateAndSpawn = () => {
+      var updatedEntities=entity.getNearby();
+      var entitiesToAdd=updatedEntities.filter(e => entity.nearbyEntities.indexOf(e)==-1);
+      var entitiesToRemove=entity.nearbyEntities.filter(e => updatedEntities.indexOf(e)==-1);
+      if (entity.type == 'player') {
+        entity.player.despawnEntities(entitiesToRemove);
+        entitiesToAdd.forEach(entity.player.spawnEntity);
+        entity.player.lastPositionPlayersUpdated=entity.position;
+      }
+
+      var playersToAdd = entitiesToAdd.filter(e => e.type == 'player').map(e => e.player);
+      var playersToRemove = entitiesToRemove.filter(e => e.type == 'player').map(e => e.player);
+
+      console.log('players',playersToAdd.length,playersToRemove.length,'ents',entitiesToAdd.length,entitiesToRemove.length);
+
+      playersToRemove.forEach(p => p.despawnEntities([entity]));
+      playersToRemove.forEach(p => p.entity.nearbyEntities=p.entity.getNearby());
+      playersToAdd.forEach(p => p.spawnEntity(entity));
+      playersToAdd.forEach(p => p.entity.nearbyEntities=p.entity.getNearby());
+
+      entity.nearbyEntities=updatedEntities;
+    };
+
     return entity;
   }
 
@@ -101,23 +187,7 @@ function inject(serv) {
     object.size = vec3(0.25*32, 0.25*32, 0.25*32); // Hardcoded, will be dependent on type!
     object.deathTime = 60*1000; // 60 seconds
 
-    var scaledVelocity = object.velocity.scaled(8000/32/20).floored(); // from fixed-position/second to unit => 1/8000 blocks per tick
-
-    serv._writeNearby('spawn_entity', {
-      entityId: object.id,
-      type: object.entityType,
-      x: object.position.x,
-      y: object.position.y,
-      z: object.position.z,
-      pitch: object.pitch,
-      yaw: object.yaw,
-      objectData: {
-        intField: data,
-        velocityX: scaledVelocity.x,
-        velocityY: scaledVelocity.y,
-        velocityZ: scaledVelocity.z
-      }
-    }, object);
+    object.updateAndSpawn();
 
     if (typeof itemId != 'undefined') {
       object.setMetadata([{
@@ -128,7 +198,7 @@ function inject(serv) {
           itemDamage: itemDamage
         }
       }]);
-    }
+    }    
   }
 
   serv.spawnMob = (type, world, position, {pitch=0,yaw=0,headPitch=0,velocity=vec3(0,0,0),metadata=[]}={}) => {
@@ -143,22 +213,7 @@ function inject(serv) {
     mob.size = vec3(0.75, 1.75, 0.75);
     mob.metadata = metadata;
 
-    var scaledVelocity = mob.velocity.scaled(8000/32/20).floored();
-
-    serv._writeNearby('spawn_entity_living', {
-      entityId: mob.id,
-      type: mob.entityType,
-      x: mob.position.x,
-      y: mob.position.y,
-      z: mob.position.z,
-      yaw: mob.yaw,
-      pitch: mob.pitch,
-      headPitch: mob.headPitch,
-      velocityX: scaledVelocity.x,
-      velocityY: scaledVelocity.y,
-      velocityZ: scaledVelocity.z,
-      metadata: mob.metadata
-    }, mob);
+    mob.updateAndSpawn();
   }
 
   serv.on('tick', function(delta) {