Daniel McNab 5ba2b9adcf Unique WorldId (#2827) ... # Objective Fixes these issues: - `WorldId`s currently aren't necessarily unique - I want to guarantee that they're unique to safeguard my librarified version of https://github.com/bevyengine/bevy/discussions/2805 - There probably hasn't been a collision yet, but they could technically collide - `SystemId` isn't used for anything - It's no longer used now that `Locals` are stored within the `System`. - `bevy_ecs` depends on rand ## Solution - Instead of randomly generating `WorldId`s, just use an incrementing atomic counter, panicing on overflow. - Remove `SystemId` - We do need to allow Locals for exclusive systems at some point, but exclusive systems couldn't access their own `SystemId` anyway. - Now that these don't depend on rand, move it to a dev-dependency ## Todo Determine if `WorldId` should be `u32` based instead		2021-09-30 20:54:47 +00:00
..
src	Unique WorldId (#2827)	2021-09-30 20:54:47 +00:00
Cargo.toml	Not me ... us (#2654)	2021-08-15 20:08:52 +00:00