Daniel McNab c893b99224 Optional .system (#2398) ... This can be your 6 months post-christmas present. # Objective - Make `.system` optional - yeet - It's ugly - Alternative title: `.system` is dead; long live `.system` - **yeet** ## Solution - Use a higher ranked lifetime, and some trait magic. N.B. This PR does not actually remove any `.system`s, except in a couple of examples. Once this is merged we can do that piecemeal across crates, and decide on syntax for labels.		2021-06-27 00:40:09 +00:00
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contributors.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
many_sprites.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
mesh.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
sprite.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
sprite_flipping.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
sprite_sheet.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
text2d.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00
texture_atlas.rs	Optional .system (#2398)	2021-06-27 00:40:09 +00:00