Getting QueryState from immutable World reference
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This partially resolves #3774 :) |
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I'd prefer to return results everywhere in this chain to improve debugging, but this is a very useful workaround currently.
That should be done in follow-up, but for now, can you add World::try_query + try_query_filtered methods to make this easier to use?
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# Objective There is currently no way of getting `QueryState` from `&World`, so it is hard to, for example, iterate over all entities with a component, only having `&World`. ## Solution Add `try_new` function to `QueryState` that internally uses `WorldQuery`'s `get_state`. ## Testing No testing
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# Objective There is currently no way of getting `QueryState` from `&World`, so it is hard to, for example, iterate over all entities with a component, only having `&World`. ## Solution Add `try_new` function to `QueryState` that internally uses `WorldQuery`'s `get_state`. ## Testing No testing
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Thank you to everyone involved with the authoring or reviewing of this PR! This work is relatively important and needs release notes! Head over to bevyengine/bevy-website#1957 if you'd like to help out. |
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Objective
There is currently no way of getting
QueryStatefrom&World, so it is hard to, for example, iterate over all entities with a component, only having&World.Solution
Add
try_newfunction toQueryStatethat internally usesWorldQuery'sget_state.Testing
No testing