https://github.com/mikea/ztd
Zig Tower Defense
https://github.com/mikea/ztd
data-oriented-design game game-engine-2d tower-defense zig ziglang
Last synced: 11 months ago
JSON representation
Zig Tower Defense
- Host: GitHub
- URL: https://github.com/mikea/ztd
- Owner: mikea
- License: gpl-3.0
- Created: 2022-11-13T18:33:33.000Z (about 3 years ago)
- Default Branch: master
- Last Pushed: 2023-01-16T18:19:35.000Z (about 3 years ago)
- Last Synced: 2025-01-25T14:42:14.793Z (about 1 year ago)
- Topics: data-oriented-design, game, game-engine-2d, tower-defense, zig, ziglang
- Language: C++
- Homepage:
- Size: 3.55 MB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# ZTD
Zig Tower Defense
Status: Technological demo
## About
This game was written by me during fall 2022 holidays to learn Zig and Data Oriented Design approach.
It contains a highly optimized 2D sprite engine with custom OpenGL-based renderer.
To let the DOD shine, this project's goal was to push performance boundaries of the number of
units present in the simulation.
Currently on `Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz` the engine achieves up to
10*10^6 units/sec of single-threaded performance.
## Runtime Requirements
- Linux with following packages: `libglfw3-dev`
- Windows 64
## Usage
Start: `./ztd` or `./ztd `.
Available levels: `level1`, `level2`, `level3`, `stress1`
Keys:
- PgUp/PgDn, Mouse Wheel - zoom
- B - build mode
- ESC - exit build mode, clear selection
- q - quit
## Development
Requirements:
- linux, `libglfw3-dev` package
- Zig 0.11 (I use [zigup](https://github.com/marler8997/zigup) to fetch master version)
Commands:
- `zig build`
- `zig build run`
- `zig build run -Drelease-fast=true -- []`
## Docker multiplatform build
`./dev.sh dist` will build linux and win64 release .zip archives.
## Code Organization
Underlying data structures:
- [src/geom.zig](src/geom.zig) - 2d geometry primitives
- [src/sparse_set.zig](src/sparse_set.zig) - sparse set implementation
- [src/denset_set.zig](src/denset_set.zig) - denset set implementation
- [src/r_tree.zig](src/r_tree.zig) - R Tree
- [src/table.zig](src/table.zig) - fast table of records and table of bounds
- [src/rects.zig](src/rects.zig) - SIMD-friendly columnar []Rect
Game engine:
- [src/gl.zig](src/gl.zig) - OpenGL interface code
- [src/imgui.zig](src/imgui.zig) - imgui interface code
- [src/shaders.zig](src/shaders.zig) - opengl shaders utilities
- [src/rendering.zig](src/rendering.zig) - different shader renderers
- [src/sprites.zig](src/sprites.zig) - sprite atlas building and rendering
- [src/viewport.zig](src/viewport.zig) - viewport calculations and update
- [src/engine.zig](src/engine.zig) - game engine
- [src/engine_testbed.zig](src/engine_testbed.zig) - simple testbed to debug the engine
Game:
- [src/model.zig](src/model.zig) - model objects stored in table
- [src/game.zig](src/game.zig) - game logic
- [src/resources.zig](src/resources.zig) - game resources
- [src/levels.zig](src/levels.zig) - game levels
- [src/ui.zig](src/ui.zig) - game UI and user interaction
- [src/data.zig](src/data.zig) - units and buildings data (hp, damage, etc)
- [src/main.zig](src/main.zig) - main entry poitn and game loop
## License
- code in `src/` is licensed under GPL3.
- code in `lib/` is licensed under respective original licenses.
- [mini world sprites](https://opengameart.org/content/miniworld-sprites) are licensed under CC0
- [rubik font](https://fonts.google.com/specimen/Rubik/about) is licensed under Open Font License
## Screenshot
