fn prepare(&mut self, world: &World) {
        if let ArchetypeAccess::Some(bitset) = &mut self.archetypes {
            if let Some(ref mut q) = self.queries {
                q.filter_archetypes(world, bitset);
            }
        }
    }
/// Prepares the system for execution against a world.
Prepares the system for execution against a world.
Prepares the system for execution against a world .
fn prepare(&mut self, world: &World) {
        if let ArchetypeAccess::Some(bitset) = &mut self.archetypes {
            if let Some(ref mut q) = self.queries {
                q.filter_archetypes(world, bitset);
            }
        }
    }
fn prepare ( & mut self , world : & World ) { if let ArchetypeAccess :: Some ( bitset ) = & mut self . archetypes { if let Some ( ref mut q ) = self . queries { q . filter_archetypes ( world , bitset ) ; } } }
Prepares the system for execution against a world.
Prepares the system for execution against a world .
&mut self
world
&World
&mut self
world
&World