ECS

A simple ECS-based 2D game engine created from scratch, compatible with Android, Windows, and Linux.

Features:

• Hybrid Sparse | Arch based ECS:
  • Concurrent rotation logging for logs and metrics
  • Macro-based queries that fully support Rust ownership rules
  • Special testing framework with dependency injection
• SDL2 + Glium + Imgui integration with Android support
• Reading tile maps based on AffinityPhoto files

Games:

• Wolf Survivors: Run using cargo run --example wolf_survivors --features=pc

Notable Dependencies:

• Glium: OpenGL wrapper
• basis-universal: Basis texture encoding/decoding
• imgui: Immediate mode GUI library
• SDL2: Input and hardware handling

Roadmap:

• Multi-thread scheduling
• Scripting
• Save/Loading data
• Audio mixer
• Electron UI

Commands

• Build - cargo run --features release
• Examples - cargo run --example log --features release
• Tests - cargo test --lib -Zpanic-abort-tests or cargo nextest run --lib
• Miri - cargo miri nextest run -j4 --color=always --lib world

Testing

• #[cfg(test)] - compile code only for tests env
• #[cfg(feature = "release")]- compile code for tests and production env

Rust-analyzer

• enable typing for testing & release code cargo.features = ["release"]
• use if (true) {} else {} to prevent borrowing issues for shared variables

FAQ

• Integration tests freeze without error? Add -- --nocapture paramaters to get panics logs