diff options
Diffstat (limited to 'azalea/src/client_impl/entity_query.rs')
| -rw-r--r-- | azalea/src/client_impl/entity_query.rs | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/azalea/src/client_impl/entity_query.rs b/azalea/src/client_impl/entity_query.rs index 8de48478..268eaaf1 100644 --- a/azalea/src/client_impl/entity_query.rs +++ b/azalea/src/client_impl/entity_query.rs @@ -84,17 +84,27 @@ impl Client { /// # Panics /// /// This will panic if the client is missing a component required by the - /// query. + /// query. Consider using [`Self::try_query_self`] to avoid this. pub fn query_self<D: QueryData, R>(&self, f: impl FnOnce(QueryItem<D>) -> R) -> R { - let mut ecs = self.ecs.write(); - let mut qs = ecs.query::<D>(); - let res = qs.get_mut(&mut ecs, self.entity).unwrap_or_else(|_| { + self.try_query_self::<D, R>(f).unwrap_or_else(|_| { panic!( "`Client::query_self` failed when querying for {:?}", any::type_name::<D>() ) - }); - f(res) + }) + } + + /// Query the ECS for data from our client entity, or return `None` if the + /// query failed. + /// + /// Also see [`Self::query_self`]. + pub fn try_query_self<D: QueryData, R>( + &self, + f: impl FnOnce(QueryItem<D>) -> R, + ) -> Result<R, QueryEntityError> { + let mut ecs = self.ecs.write(); + let mut qs = ecs.query::<D>(); + qs.get_mut(&mut ecs, self.entity).map(f) } /// Query the ECS for data from an entity. |
