Eccles

Eccles是一个简单的实体组件系统实现，灵感来自rust_ecs和ecs-rs。它使用宏来使组件列表快速且易于访问。

宏

您使用world!宏来构建一个世界，将实体、组件和系统放在上面。其语法是

 world!{
    name: (The name of the world),
    components: {
        (list name for using as a field on the world) => (component type),
        positions => Position
    },
    processors: {
        (processor name for using as a field on the world) => (processor type with Default impl) for [(list names to give to the processors)],
        render => Render for [sprite, pos]
    }
 }