Various bug fixes for 0.9 #997
Conversation
AnneKitsune
added
pri: low
book/src/concepts/system.md
Outdated
| ### Getting entities that have some components, but not others | ||
|
|
||
| There is a special type of `Storage` in specs called `AntiStorage`. | ||
| You can invoke it using the "!" symbol when borrowing a normal `Storage`. |
There was a problem hiding this comment.
how about,
You can invoke it using the `!` operator when borrowing a normal `Storage`.
There was a problem hiding this comment.
Tbh, invoke sounds a bit odd here. Maybe something like "the not operator (!) turns a Storage into its AntiStorage"?
book/src/concepts/system.md
Outdated
| ### Getting entities that have some components, but not others | ||
|
|
||
| There is a special type of `Storage` in specs called `AntiStorage`. | ||
| You can invoke it using the "!" symbol when borrowing a normal `Storage`. |
There was a problem hiding this comment.
Tbh, invoke sounds a bit odd here. Maybe something like "the not operator (!) turns a Storage into its AntiStorage"?
| ); | ||
|
|
||
| fn run(&mut self, (mut transforms, falling): Self::SystemData) { | ||
| for (mut transform, _) in (&mut transforms, !&falling).join() { |
There was a problem hiding this comment.
should not iterate over them unconditionally given the conditional write below
There was a problem hiding this comment.
not sure I understood what you meant
There was a problem hiding this comment.
@torkleyy I don't believe there is a conditional write there.
torkleyy
added
type: bug
|
|
||
| There is a special type of `Storage` in specs called `AntiStorage`. | ||
| The not operator (!) turns a Storage into its AntiStorage counterpart. | ||
| It is used like this: |
There was a problem hiding this comment.
Just a rewording:
"Sometimes, you may want to iterate over all the entities that do not have a specific component.
You can do this by joining over the AntiStorage of your component: the joining will now happen on all entities that do not have the component.
To obtain an AntiStorage, simply apply the not operator (!) on your component's normal storage, like so:"
|
|
||
| fn run(&mut self, (mut transforms, falling): Self::SystemData) { | ||
| for (mut transform, _) in (&mut transforms, !&falling).join() { | ||
| // If they don't fall, why not make them go up! |
AnneKitsune
changed the title
|
bors r+ yeet |
Build succeeded |
Fixes #828
Fixes #945