Crate entity_store_code_gen

Code generator for a game data store. Data is organised into "components" - eaching having a particular rust type. "Entities" - objects in the game world - are collections of components. A component can be associated with an entity by storing the id of the entity in that component's store.

A simple example:

struct EntityStore {
    position: HashMap<EntityId, ::cgmath::Vector2<f32>>,
    solid: HashSet<EntityId>,
    tile: HashSet<EntityId, MyTileType>,
}

Note the solid field is a HashSet rather than a HashMap. Sets are used to store flags with no associated data.

This must be used from a build script. A simple build script looks like:

extern crate entity_store_code_gen;

fn main() {
    entity_store_code_gen::generate(include_str!("spec.toml")).unwrap()
}

Use entity_store_helper to help make use of the generated code.

Enums

Error
GenError	Errors that can occur during code generation
SaveError	Errors that can occur while creating the output file

Functions

generate

Generates code from a given toml spec. Results are placed in OUT_DIR. Must be called from a build script.

Type Definitions

GenResult
SaveResult