Allows you to run Phaser 3 Games (including Phaser’s physics engines) on Node.js.
It has been a while since I released @geckos.io/phaser-on-nodejs, but I have now finally added the possibility to set a custom frame rate and to load images and json files (TileMaps) directly into your server side Phaser Games.
Custom Frame Rate
// set the fps you need
const FPS = 30
global.phaserOnNodeFPS = FPS
// prepare the config for Phaser
const config = {
type: Phaser.HEADLESS,
scene: [MainScene],
fps: {
target: FPS,
},
...
}
Loader
preload() {
// use a relative path instead an absolute
this.load.spritesheet('dude', '../assets/dude.png', {
frameWidth: 32,
frameHeight: 48,
})
}
Hi, I had a look and tested your games examples and looks working really nice, good work!
I’m just curious on this, don’t get me wrong, but I don’t get the point of why running it on Node.js or what’s the main idea behind this…
Which are the use cases? testing? checking untrusty clients? simply play with it?
Thanks for sharing it!
I followed the tutorial and I get a phaser not being defined server-side. Does that have to do with jsdom and canvas? I haven’t used either before so am a little confused. Any help would be appreciated.
Hey Yannick. I had another question I was hoping you could help me on. I’m trying to understand general authoritative server architecture when it comes to phaser. Right now I have my client sending player input to the server, but there’s no way to keep the server authoritative since the physics are not running on it. I have phaser-on-node.js running on my server now, but my question is how do I implement my existing code so that I can do say, setVelocity for playerId when player sends movement input? Do I copy and paste the code over to the server? I hope my question makes sense, just having trouble conceptualizing how the headless authoritative server displays client actions on the client’s screen. Thank you.
The client does not run physics at all. He just receives the positions of the images and renders them on the screen.
Basically, the client send the inputs > the server adds the velocity to the player and updates the physics > the server send the new position of the player to the client > the client renders it.
I once made a very basic example. Hope it helps
There are also some more complex techniques to apply like “Snapshot Interpolation”, “Client-Side Prediction and Server Reconciliation” and “Lag Compensation”. But these are advanced and not needed in most multiplayer games. See this video for more information.
the project is very good, but I can’t import using directories class MainScene extends Phaser.Scene { constructor() { super('MainScene') } preload(){ this.load.image('sky', './public/assets/sky.png'); //error this.load.image('sky', 'public/assets/sky.png') // error }
[Error: ENOENT: no such file or directory, open ‘C:\Users\name\Desktop\server\node_modules@geckos.io\phaser-on-nodejs\lib\public\assets\sky.png’] {
errno: -4058,
code: ‘ENOENT’,
syscall: ‘open’,
path: ‘C:\Users\name\Desktop\server\node_modules\@geckos.io\phaser-on-nodejs\lib\public\assets\sky.png’
}
const path = require('path')
// check if one of them gives you the right path
console.log(path.resolve(__dirname, '../public/assets/sky.png'))
console.log(path.resolve(__dirname, 'public/assets/sky.png'))
First off, thanks for creating this! Super handy, and easy to setup exactly what I needed.
I’m actually making use of the tilemap functionality, but it seems my collisions are at slightly different locations on the client / server. Does this seem like it could be due to an implementation bug, or any ideas?
Although I added support for tilemap, I have never used one. I read you thread and suggest to debug your server
side physics using electron. See this example: Phaser 3 - Real-Time Multiplayer Game with Physics #2
You can code your server side game in an isomorphic way to be able to run it on electron (debug) or node.js (production).
Hi @yannick . It was a big contribution that made phaser work on the server. If you don’t mind, I would like some advice from you about what you made here.
Each new map is a new phaser instance? or each new player? I don’t get this part. (I still haven’t seen the code in detail due to being traveling at the moment)
Are you making a stress test to see how connections geckos.io work without any problem?
Do you think that this structure that you made supports an action ORPG? I’ve been made a job to convert some flash games in html5, and I need convert a ORPG game, i would like to have some help from you, about answer me that questions
ps: I think it would be awesome you made a FAQ, but you must n’t have much time to do this.
