https://github.com/empyreanx/godot-snapshot-interpolation-demo

A simple networked physics demo for the Godot engine using snapshot interpolation and UDP
https://github.com/empyreanx/godot-snapshot-interpolation-demo

Last synced: 6 days ago
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A simple networked physics demo for the Godot engine using snapshot interpolation and UDP

• Host: GitHub
• URL: https://github.com/empyreanx/godot-snapshot-interpolation-demo
• Owner: empyreanx
• License: mit
• Created: 2015-05-27T13:28:10.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-06-12T14:24:49.000Z (over 9 years ago)
• Last Synced: 2024-08-02T06:16:09.369Z (3 months ago)
• Language: GDScript
• Homepage:
• Size: 262 KB
• Stars: 65
• Watchers: 5
• Forks: 9
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

• awesome-godot - UDP Snapshot interpolation - Lets you connect to a server and view networked physics. (Demos / 3D)

README

        
# Snapshot Interplation Demo

**Note:** Snapshot interpolation is no longer my favoured approach for networked physics using Godot. Please see the [state synchronization demo](https://github.com/jrimclean/godot-state-sync-demo) for a much better approach.

## Introduction

The purpose of this demo is to demonstrate essential techniques required to make real-time multiplayer games using the [Godot Engine](http://www.godotengine.org).

The server runs a simple physical simulation involving three boxes. Users can drag the boxes around on either the client or the server. The server simulates less than ideal network conditions by sending only a limited number of packets per second.

The client uses an interpolated buffer to ensure animation remains smooth even in the face of bad network conditions.

To start a dedicated server with the headless version of Godot type, "godotserver -server" in the project directory.

To see where I got the ideas behind the interpolation, visit [Gaffer on Games](http://gafferongames.com/).

It looks like I might be able to do delta compression after all thanks to some changes being made by Juan.

I did more reading about client-side prediction and lag compensation, and I've concluded that both techniques are inappropriate for this demo.

## Features

* Input handling on both client and server

* Adjustable network frame rate to simulate less than ideal network conditions

* Cubic Hermite interpolation for positions

* Spherical linear interpolation for rotations

## License

Copyright (c) 2015 James McLean  

Licensed under the MIT license.