https://github.com/calint/glos

experimental 3d multiplayer game framework using simple data layer 2 and opengl es3 in c++ 23
https://github.com/calint/glos

3d-framework cpp multiplayer-game opengl sdl2

Last synced: 3 days ago
JSON representation

experimental 3d multiplayer game framework using simple data layer 2 and opengl es3 in c++ 23

• Host: GitHub
• URL: https://github.com/calint/glos
• Owner: calint
• Created: 2016-12-01T05:39:03.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2024-07-21T20:16:28.000Z (4 months ago)
• Last Synced: 2024-07-22T17:05:18.052Z (4 months ago)
• Topics: 3d-framework, cpp, multiplayer-game, opengl, sdl2
• Language: C++
• Homepage:
• Size: 12.4 MB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# glos

> :bell: development continued in [glosi](https://github.com/calint/glosi)

experimental 3d multiplayer game framework using simple data layer 2 and opengl es3 in c++ 23

## intention

* multiplayer framework

  - synchronized client input signals

  - clients render at the rate of the slowest client

  - server synchronizes clients signals

* grid of cells that partition world space

  - update and collision detection of objects

  - multithreaded

* game where most objects are visible on screen

  - cull grid cells and objects to render within frustum _(todo)_

* importing blender exported `obj` files

* explore legacy opengl rendering

* intuitive programming of game objects and logic

* game code written in `src/application/`

* collision detection (that is "good enough" for games)

  - sphere vs sphere

  - sphere vs convex volume

  - convex volume vs convex volume

* collision reaction

  - sphere vs sphere

  - sphere vs convex volume _(todo)_

  - convex volume vs convex volume _(todo)_

## ubuntu packages used

* libgl-dev: opengl

* libglm-dev: opengl math

* libtbb-dev: parallel unsequenced `for_each`

* sdl2 related packages

* see `make.sh` for details

## howto run

* using script (recommended): `./make.sh && ./glos`

* using cmake: `mkdir build && cd build && cmake .. && make && cd .. && build/glos`

## sample game

* multiplayer enabled proof of concept

  - `threaded_grid` must be `false` for deterministic behavior

* shoot asteroids and pick up power ups for the gun

* developed to test the framework

* source in `src/application/` and `assets/`

* howto keys

  - w: thrust

  - a: rotate left

  - d: rotate right

  - j: fire

  - k, l: cameras

  - F1: print cells

  - F2: collisions on/off (this will make clients out-of-sync)

  - F3: render on/off

  - F4: cycle through shaders

  - F5: render normals on/off

  - F6: render bounding spheres on/off

  - F7: hud on/off

  - F8: render grid cells on/off

![starting multiplayer mode](https://github.com/calint/glos/assets/1920811/ed27167b-525e-4696-8a0c-2cb2fb52ec14)

![multiplayer mode](https://github.com/calint/glos/assets/1920811/697dbe55-b3b0-41ef-8bfa-ab67666291c8)

![single player mode](https://github.com/calint/glos/assets/1920811/96a27e30-d180-4f6b-930c-cf49b2c09d98)

![single player mode](https://github.com/calint/glos/assets/1920811/e39000d0-8bc9-4070-9454-46bb5ae6e4ab)

## todo

* another sample game in a 3D sandbox-like environment

* and much more in [todo.txt](https://github.com/calint/glos/blob/master/notes/todo.txt)