refactor: packet listeners

app/engine/engine.js

@@ -37,7 +37,7 @@ export default class Engine {
 
   static Ecs = Ecs;
 
-  incoming = [];
+  incomingActions = [];
 
   constructor(Server) {
     const ecs = new this.constructor.Ecs();
@@ -81,15 +81,11 @@ export default class Engine {
       }
     }
     this.server = new SilphiusServer();
-    this.server.addPacketListener((connection, packet) => {
-      this.accept(connection, packet);
+    this.server.addPacketListener('Action', (connection, payload) => {
+      this.incomingActions.push([this.connectedPlayers.get(connection).entity, payload]);
     });
   }
 
-  accept(connection, packet) {
-    this.incoming.push([this.connectedPlayers.get(connection).entity, packet]);
-  }
-
   async connectPlayer(connection) {
     this.connections.push(connection);
     const entityJson = await this.loadPlayer(connection);
@@ -134,18 +130,12 @@ export default class Engine {
     for (const i in this.ecses) {
       this.ecses[i].setClean();
     }
-    for (const [{Controlled}, {payload, type}] of this.incoming) {
-      switch (type) {
-        case 'Action': {
-          if (payload.type in MOVE_MAP) {
-            Controlled[MOVE_MAP[payload.type]] = payload.value;
-          }
-          break;
-        }
-        default:
+    for (const [{Controlled}, payload] of this.incomingActions) {
+      if (payload.type in MOVE_MAP) {
+        Controlled[MOVE_MAP[payload.type]] = payload.value;
       }
     }
-    this.incoming = [];
+    this.incomingActions = [];
     for (const i in this.ecses) {
       this.ecses[i].tick(elapsed);
     }

app/hooks/use-packet.js

@@ -5,14 +5,9 @@ import ClientContext from '@/context/client.js';
 export default function usePacket(type, fn, dependencies) {
   const client = useContext(ClientContext);
   useEffect(() => {
-    function onPacket(packet) {
-      if (packet.type === type) {
-        fn(packet.payload);
-      }
-    }
-    client.addPacketListener(onPacket);
+    client.addPacketListener(type, fn);
     return () => {
-      client.removePacketListener(onPacket);
+      client.removePacketListener(type, fn);
     };
   }, dependencies);
 }

app/net/client/client.js

@@ -2,20 +2,31 @@ import {CLIENT_LATENCY} from '@/constants.js';
 
 export default class Client {
   constructor() {
-    this.listeners = [];
+    this.listeners = {};
   }
   accept(packet) {
-    for (const i in this.listeners) {
-      this.listeners[i](packet);
+    const listeners = this.listeners[packet.type];
+    if (!listeners) {
+      return;
+    }
+    for (const i in listeners) {
+      listeners[i](packet.payload);
     }
   }
-  addPacketListener(listener) {
-    this.listeners.push(listener);
+  addPacketListener(type, listener) {
+    if (!this.listeners[type]) {
+      this.listeners[type] = [];
+    }
+    this.listeners[type].push(listener);
   }
-  removePacketListener(listener) {
-    const index = this.listeners.indexOf(listener);
+  removePacketListener(type, listener) {
+    const listeners = this.listeners[type];
+    if (!listeners) {
+      return;
+    }
+    const index = listeners.indexOf(listener);
     if (-1 !== index) {
-      this.listeners.splice(index, 1);
+      listeners.splice(index, 1);
     }
   }
   send(packet) {

app/net/server/server.js

@@ -2,20 +2,31 @@ import {SERVER_LATENCY} from '@/constants.js';
 
 export default class Server {
   constructor() {
-    this.listeners = [];
+    this.listeners = {};
   }
   accept(connection, packet) {
-    for (const i in this.listeners) {
-      this.listeners[i](connection, packet);
+    const listeners = this.listeners[packet.type];
+    if (!listeners) {
+      return;
+    }
+    for (const i in listeners) {
+      listeners[i](connection, packet.payload);
     }
   }
-  addPacketListener(listener) {
-    this.listeners.push(listener);
+  addPacketListener(type, listener) {
+    if (!this.listeners[type]) {
+      this.listeners[type] = [];
+    }
+    this.listeners[type].push(listener);
   }
-  removePacketListener(listener) {
-    const index = this.listeners.indexOf(listener);
+  removePacketListener(type, listener) {
+    const listeners = this.listeners[type];
+    if (!listeners) {
+      return;
+    }
+    const index = listeners.indexOf(listener);
     if (-1 !== index) {
-      this.listeners.splice(index, 1);
+      listeners.splice(index, 1);
     }
   }
   send(connection, packet) {

app/packets/tick.js

@@ -1,3 +1,3 @@
 import Packet from '@/net/packet.js';
 
-export default class Tick extends Packet {};
+export default class Tick extends Packet {}