Python game engine for 2D multiplayer online games.

Related tags

Game Developmentlan-caster
Overview

LAN-Caster

The goal of LAN-Caster is to provide an easy-to-use code base (game engine) for developing 2D multiplayer online games. LAN-Caster originally only supported Local Area Networks (LAN) but now also has experimental support for Wide Area Networks (WAN), also known as the Internet.

How To Run

Prerequisites

The following items need to be installed to run LAN-Caster.

Python 3.6 or higher

LAN-Caster uses Python 3.6 or higher (tested on python 3.7.3) which can be installed from https://www.python.org/downloads/.

If multiple versions of python are installed, ensure you are running python 3.6+, not python 3.5 or python 2. The examples in this README use the "python" command assuming python 3.6+ is the default. The command "python3" (Linux) or "py -3" (Windows) may be required to force the correct version.

Python Modules

LAN-Caster requires two added python moduels to be installed.

  1. Pygame is used by the clients to open the game window, render graphics, and collect player input.
  2. Msgpack is used to encode and decode messages between the server and clients.

To install pygame and msgpack on Windows use:

py -3 -m pip install pygame msgpack-python

To install pygame and msgpack on Linux use:

pip3 install pygame msgpack-python

Note, if a computer is only running the LAN-Caster server then the pygame module is not required.

LAN-Caster Code

The LAN-Caster code can be cloned with git from: https://github.com/dbakewel/lan-caster.git or downloaded in zip form from: https://github.com/dbakewel/lan-caster/archive/master.zip

Running the Demo

On windows, double click "run-demo.bat" in the root of the LAN-Caster directory.

If this does not work, open a command window (cmd), cd into the directory containing run-demo.bat and type "rundemo.bat".

The rundemo script will start 4 processes on the local computer: 1 server and 3 clients. Normally, each client would run on a different computer and be used by a different player. The run-demo.bat allows one user to move back and forth between all 3 clients and play all the players at once.

Running on Separate Computers

By default LAN-Caster only listens on localhost 127.0.0.1 which does not allow messages to be sent or received between computers. To listen on all network interfaces, and allow messages from other computers, use -ip 0.0.0.0 on server and clients.

Note, if you want to run LAN-Caster across a network then the ports you choose must be open in the OS and network firewalls for two way UDP traffic. By default, LAN-Caster uses ports of 20000 and above but any available UDP ports can be used.

For example:

Assuming:

  • computer 1 has IP address of 192.168.1.10
  • computer 2 has IP address of 192.168.1.11
  • computer 3 has IP address of 192.168.1.22
  • computer 4 has IP address of 192.168.1.33

The server can be run on computer 1 with:

py -3 src/startserver.py -game "demo" -ip 0.0.0.0

The server will listen on 127.0.0.1 and 192.168.1.10

A client can be run on Computer 2, 3, and 4 with:

py -3 src/startclient.py -game "demo" -sip 192.168.1.10

Command Line Help

The server and client allow some customization with command line switches. Use the -h switch to display help. For example:

D:\lan-caster>py src\startserver.py -h
usage: startserver.py [-h] [-game dir] [-register name] [-ch hostname]
                      [-cp port] [-sip ipaddr] [-sp port] [-fps fps]
                      [-busy secs] [-pause secs] [-test] [-verbose] [-debug]

optional arguments:
  -h, --help      show this help message and exit
  -game dir       Directory to load game from (default: demo)
  -register name  Experimental: Register with connector as name (False == do
                  not register) (default: False)
  -ch hostname    Experimental: Connector hostname or IP address (default:
                  lan-caster.net)
  -cp port        Experimental: Connector port number (default: 20000)
  -sip ipaddr     Server IP address (default: 0.0.0.0)
  -sp port        Server port number (default: 20001)
  -fps fps        Target frames per second (aka steps/sec) (default: 30)
  -busy secs      Seconds between logging percent busy (default: 60)
  -pause secs     Duration to pause in seconds before starting server (for
                  testing) (default: 0)
  -test           Start server in test mode (default: False)
  -verbose        Print VERBOSE level log messages (default: False)
  -debug          Print DEBUG level log messages (includes -verbose) (default:
                  False)

D:\lan-caster>py src\startclient.py -h
pygame 2.1.2 (SDL 2.0.16, Python 3.6.7)
Hello from the pygame community. https://www.pygame.org/contribute.html
usage: startclient.py [-h] [-game dir] [-player name] [-connect name]
                      [-ch hostname] [-cp port] [-sip ipaddr] [-sp port]
                      [-ip ipaddr] [-p port] [-width width] [-height height]
                      [-fps fps] [-busy secs] [-pause secs] [-verbose]
                      [-debug]

optional arguments:
  -h, --help      show this help message and exit
  -game dir       Directory to load game from (default: demo)
  -player name    Player's name to display in game (default: anonymous)
  -connect name   Experimental: Connect to server using connector. "name" must
                  match server's "-register name" (if False then use -sip and
                  -sp to connect to server) (default: False)
  -ch hostname    Experimental: Connector hostname or IP address (default:
                  lan-caster.net)
  -cp port        Experimental: Connector port number (default: 20000)
  -sip ipaddr     Server IP address (default: 127.0.0.1)
  -sp port        Server port number (default: 20001)
  -ip ipaddr      Client IP address (default: 0.0.0.0)
  -p port         Client port number (client will search for an open port
                  starting with this number.) (default: 20002)
  -width width    Window width (default: 640)
  -height height  Window height (default: 640)
  -fps fps        Target frames per second (default: 30)
  -busy secs      Seconds between logging percent busy (default: 60)
  -pause secs     Duration to pause in seconds before starting client (for
                  testing) (default: 0)
  -verbose        Print VERBOSE level log messages (default: False)
  -debug          Print DEBUG level log messages (includes -verbose) (default:
                  False)

Tutorials

The following videos provide an overview of how to use LAN-Caster to build your own game. Also, see comments in the LAN-Caster code and docs folder.

videos coming soon...

Additional Information

Install Connector Systemd Service on Linux (Experimental)

Assuming lan-caster has been installed under a linux user name 'lan-caster' with home dir '/home/lan-caster'

cd /home/lan-caster/lan-caster/systemd
sudo cp connector.service /lib/systemd/system/
sudo systemctl enable $f
Comments
  • Is it possible to create an outOfBounds for some players, and not others?

    Is it possible to create an outOfBounds for some players, and not others?

    What do you need help with? My group is trying to make a 'base' for players of one team to spawn/respawn on; players from the other team should not be able to walk into this base. How would we make it so the base is outOfBounds to an opposing team? We have a ['team'] attribute for players of both teams in the .json already.

    Thank you so much!

    opened by pahu2353 4
  • Sprites

    Sprites

    Is it possible to hide certain sprites in a layer using something like setLayerVisablitybyName with changes made to it, or is it not possible? Ex. Player 1, Player 2, and Player 3 With advancing dialog, each player's screen shows the same thing, but only player 1 is visible, and player 2,3 is off-screen, with no name tag. With something like "show Player 2" player 1 and 2 is visible, and player 3 is not.

    opened by GaoZe36 3
  • Tileset not working

    Tileset not working

    What do you need help with? Hi there! I'm wondering if there are any restrictions on how tilesets are drawn that might make it so the game cannot run? I'm aware that tiles cannot be rotated, but I was wondering if there were any other restrictions on how tiles are implemented that might break the game? After adding a tile from a certain tileset, it gives me an error... Thank you ! (I've tried to attach an image but I'm not sure if it attached!)

    Capture

    opened by jasminejamjelly 3
  • Textbox special effects

    Textbox special effects

    Greetings,

    I'm wondering if lan-caster comes with any built-in code to add special effects to sprites when they talk? For example, my group wants to add a typewriter effect to player speech, just like this: typewriter-animation-text

    opened by Dason-IsopodOverseer 2
  • Possible spelling error

    Possible spelling error "speachText" in engine/servermap.py under setSpriteSpeechText

    Came across this when reading the code. Line 422 under in engine/servermap.py. Seems to be a minor error as no problems because of this are seen so far.

    opened by Sunery030 1
  • Develop

    Develop

    Description

    Added support for rect to rect collision detection. Sprite now have a collisionType attribute which is 'anchor' by default but can be changed to 'rect'.

    Motivation and Context

    This was done to allow things like the pushing of blocks. The blocks can't overlap other objects.

    Related Issue(s)

    none

    Completeness

    Should be complete.

    Testing

    Created a new map in the enginetest game called test19push, in which blocks have collision type set to 'rect' and the player can push the blocks around.

    opened by dbakewel 0
Releases(v1.0.0)
Owner
Douglas Bakewell
Douglas Bakewell
GitHub Repository
A fully automated system that transforms Twitch clips into gaming compilations

A fully automated system that transforms Twitch clips into gaming compilations Authors: Christian C., Moritz M., Luca S. Related Projects: Neural Netw

215 Dec 27, 2022
Nerdle - a nerd's approach to solving Wordle

Nerdle - a nerd's approach to solving Wordle

4 Nov 28, 2022
Flappy Bird hack using Deep Reinforcement Learning (Deep Q-learning).

Using Deep Q-Network to Learn How To Play Flappy Bird 7 mins version: DQN for flappy bird Overview This project follows the description of the Deep Q

Yen-Chen Lin 6.4k Dec 30, 2022
Open source Brawl Stars server emulator for version 29 of the game!

Welcome to Classic-Brawl v29 Remake 👋 Open source Brawl Stars server emulator for version 29 of the game! (Remake) What's working ? Battles Trophies

CrossFire 4 Jan 19, 2022
Simple car game written in PyGame

Welcome to CarGame 👋 Car Game written in PyGame! NOTE: This is still new and there may be stuff broken... 🏠 Homepage Install install pygame by typin

John 1 Oct 29, 2021
PyChess - a chess client for Linux/Windows

PyChess - a free chess client for Linux/Windows The mission of PyChess is to create a free, pleasant, PyGObject based chess game for the Linux desktop

559 Dec 28, 2022
This is a two player snake game

Trake This is a two player snake game How to play the game There is food and two players. You try to eat food to become large and gain points. Player

Grrub 1 Dec 19, 2021
This is a script which can be used to autobattle, upgrade metamon, compose eggs and open eggs in metamon game.

This is a script which can be used to autobattle, upgrade metamon, compose eggs and open eggs in metamon game. The only parameters you need to input are you wallet address and sign. The sign can be o

Taxiria 37 May 11, 2022
Open source translation for the Tsukihime Remake game

Tsukihime-Translation Open source translation for the Tsukihime Remake game prepared by Clovermoon and Tsukihimates. Copyright Disclaimer under Sectio

118 Jan 01, 2023
Automates cubemap generation for Source Engine games.

AutoCube Automates cubemap generation for Source Engine games during compile-time. Download: see the release page Installation Using with CompilePal A

5 Feb 18, 2022
A simple game with the main idea to be: Guess The Number

GuessTheNumber GuessTheNumber is a simple game I made using Python. The main mechanic of the game is to guess the number that randomly generated from

0 Jun 24, 2022
Quantum version of the classical Nim game. An automatic opponent allows to game to not be as easy as it seems.

Nim game Running the game To run the program just launch : python3 game.py Rules This game is inspiring from the Nim game. You are 2 players face to f

Michaël 1 Jan 08, 2022
Deliver buycraft orders to players across the map in minecraft servers using baritone

Deliver buycraft orders to players across the map in minecraft servers using baritone

synthels 1 Nov 14, 2021
PyCharge is an open-source computational electrodynamics Python simulator

PyCharge PyCharge is an open-source computational electrodynamics Python simulator that can calculate the electromagnetic fields and potentials genera

Matthew Filipovich 28 Jan 03, 2023
Utility.py - a utility that offerres cool cli tools and games.

Utilty.py Utility.py is a utility that offerres cool cli tools and games. Currently the offerd games/items are: get the number, countdown, random name

bee-micizi 1 Dec 08, 2021
Chesston (Chess+Python) is a two-player chess game with graphical user interface written in PyQt5

♟️ Chesston (Chess+Python) is a two-player chess game with graphical user interface written in PyQt5. 💿 Dependencies This program uses Py

6 May 26, 2022
Ghdl-interactive-sim - Interactive GHDL simulation of a VHDL adder using Python, Cocotb, and pygame

GHDL Interactive Simulation This is an interactive test bench for a simple VHDL adder. It uses GHDL to elaborate/run the simulation. It is coded in Py

Chuck Benedict 2 Aug 11, 2022
A Python based program that displays Your Minecraft Server's Status Infos.

Minecraft-server-Status This (very) small python script allows you to view any Minecraft server's status Information Usage Download the file, install

Jonas_Jones 2 Oct 05, 2022
Orbital-patterns - A program which plots pattern that revolving planets make

orbital-patterns Click to spawn planets Press "S" to capture screenshot. Image w

Yuvraj.M 11 Dec 24, 2022
Racing Fire - A simple game made with pygame.

Racing Fire A simple game in the making. Using pygame, this game is made to feel like an old arcade game. I developed a simple controller for it with

Builder212 1 Nov 09, 2021