Retable
A Rust library for Atomic-like double-indexed entity-attribute data structures.
Atom
Atom is a way to describe a single entity-attribute pair.
| Field Name | Size(in bytes) | Description |
|---|---|---|
| EID | 8bytes | Entity ID, a unique ID for an entity. |
| PropertyName | 8bytes | A fixed size string to describe the attribute. |
| Value | 32bytes | A value to describe the attribute, see below. |
- Endian: Little Endian, rust native.
- Codec: Using rust Bincode to encode/decode.
Value Enum
1 byte to describe the value type enum. 31 bytes contain the data.
Supports the following types(in rust):
- Bool(bool)
- EID(EID)
- UInt(u64)
- Int(i64)
- Float(f64)
- UInt3([u64; 3])
- Int3([i64; 3])
- Float3([f64; 3])
- UInt2([u64; 2])
- Int2([i64; 2])
- Float2([f64; 2])
- Mark(30-bit str)
Features
- Double indexed by Entity ID and Property Name.
- Built on top of sled and moka
- Thread-safe
- No unsafe code
Roadmap
- Basic implementation.
- Documentation.
- Benchmark.
- Use sparse index to fetch more dense in-memory performance.
Written by RuofengX · Used in entropy-rs, the Game
License by MIT.