Permafrost Engine is an OpenGL 3.3 Real Time Strategy game engine written in C. It is made in the image of old classics, but incorporating some modern ideas.
EVERGLORY is the flagship game developed using Permafrost Engine.
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- OpenGL 3.3 programmable pipeline (more modern extensions used where available)
- Custom ASCII model format with Blender export script
- Skeletal animation with GPU skinning
- Phong reflection model with materials
- Directional light shadow mapping
- Batched rendering with dynamic batches
- Ringbuffer-based streaming of data to GPU
- RTS camera, FPS camera
- Rendering of tile-based map parsed from ASCII file
- Water rendering (including reflection, refraction, soft edge effects)
- Export/Import of game entites to/from ASCII files
- Engine internals exposed to Python 2.7 for scripting
- Event system
- UI framework (Nuklear-based)
- Efficient raycasting
- Map/Scene editor
- Pause/Resume system
- Fast rendering of huge maps
- Map navigation graph/grid generation
- Implementation of 'boids' steering/flocking behaviours
- Hierarchial flow field pathfinding
- Handling of dynamic obstacles in pathfinding
- Dynamic collision avoidance of multiple entities using Hybrid Reciprocal Velocity Obstacles and the ClearPath algorithm
- Efficient spatial indexing using a quadtree
- RTS minimap
- RTS-style unit selection
- RTS unit combat system
- RTS fog-of-war system
- Support for different resolutions and aspect ratios
- Configurable graphics settings
- Serialization and deserialization of the entire Python interpreter state
- Saving and restoring of any engine session, including all Python-defined state
- Multithreaded: simulation and rendering in a 2-stage pipeline
- Advanced debug visualizations and profiling instrumentatation
- Cross-platform (Linux and Windows)
- SDL2 2.0.10
- GLEW 2.1.0
- python 2.7.17
- stb_image.h, stb_image_resize.h
- khash.h
- nuklear.h
All dependencies can be built from source and distributed along with the game binary if desired. Python is built with a subset of the default modules and packaged with a trimmed-down stdlib.
git clone https://github.com/eduard-permyakov/permafrost-engine.gitcd permafrost-enginemake deps(to build the shared library dependencies to./lib)make pf
Now you can invoke make run to launch the demo or make run_editor to launch the map editor.
Optionally, invoke make launchers to create the ./demo and ./editor binaries which don't
require any arguments.
The source code can be built using the mingw-w64 cross-compilation toolchain
(http://mingw-w64.org/doku.php) using largely the same steps as for Linux. Passing PLAT=WINDOWS
to the make environment is the only required change.
The compliation can either be done on a Linux host, or natively on Windows using MSYS2 (https://www.msys2.org/).
git clone https://github.com/eduard-permyakov/permafrost-engine.gitcd permafrost-enginemake deps PLAT=WINDOWSmake pf PLAT=WINDOWSmake launchers PLAT=WINDOWS
Permafrost Engine is licensed under the GPLv3, with a special linking exception.
Follow the development of Permafrost Engine and EVERGLORY on YouTube: Channel Link
Indie RTS Devlog #1: Introducing Permafrost Engine
Indie RTS Devlog #2: Saving The Python Interpreter
Indie RTS Devlog #3: Group Pathfinding
Indie RTS Devlog #4: Fog of War
Indie RTS Devlog #5: Performance Optimization
Comments or questions regarding the project or the source code? E-mail: edward.permyakov@gmail.com. Discuss EVERGLORY and its' development on Discord here: https://discord.gg/jSQ8M6C. Pull requests are not accepted until the release of EVERGLORY, which will coincide with the 1.0 milestone of the engine.