Improve physics

backend/src/main.ts

@@ -2,12 +2,19 @@ import ioserver, { Socket } from 'socket.io';
 import express from 'express';
 import { Server } from 'http';
 import cors from 'cors';
-import { applyArrayPlugins, Random, TransportEvents, deserializeCommand } from 'shared';
+import {
+  applyArrayPlugins,
+  Random,
+  TransportEvents,
+  deserializeCommand,
+  StepCommand,
+} from 'shared';
 import './index.html';
 import { Player } from './players/player';
 import { PhysicalContainer } from './physics/containers/physical-container';
 import { createDungeon } from './map/create-dungeon';
 import { glMatrix } from 'gl-matrix';
+import { DeltaTimeCalculator } from './helper/delta-time-calculator';
 
 glMatrix.setMatrixArrayType(Array);
 
@@ -26,6 +33,8 @@ objects.initialize();
 
 const app = express();
 
+const deltaTimeCalculator = new DeltaTimeCalculator();
+
 app.use(
   cors({
     origin: (origin, callback) => {
@@ -50,7 +59,6 @@ app.get('/', function (req, res) {
 io.on('connection', (socket: SocketIO.Socket) => {
   socket.on(TransportEvents.PlayerJoining, () => {
     const player = new Player(objects, socket);
-
     socket.on(TransportEvents.PlayerToServer, (text: string) => {
       const command = deserializeCommand(JSON.parse(text));
       player.sendCommand(command);
@@ -71,3 +79,14 @@ io.on('connection', (socket: SocketIO.Socket) => {
 server.listen(port, () => {
   console.log(`server started at http://localhost:${port}`);
 });
+
+const handlePhysics = () => {
+  const delta = deltaTimeCalculator.getNextDeltaTimeInMilliseconds();
+  const step = new StepCommand(delta);
+
+  objects.sendCommand(step);
+
+  setTimeout(handlePhysics, 5);
+};
+
+handlePhysics();