Macro calx_ecs::Ecs

macro_rules! Ecs {
    {
        // Declare the type of the (plain old data) component and the
        // identifier to use for it in the ECS.
        $($compname:ident: $comptype:ty,)+
    } => { ... };
}

Entity component system builder macro.

Defines a local Ecs type that's parametrized with a custom component store type with the component types you specify. Will also define a trait Component which will be implemented for the component types.