Enum RotationPlacementRule 

#[non_exhaustive]
pub enum RotationPlacementRule {
    Never,
    Attach {
        by: Face6,
    },
}

Rule about how this block should be rotated, or not, when placed in a Space by some agent not otherwise specifying rotation.

TODO: We may want to replace this with a struct that also carries declared symmetries (“this is a vertical pillar so never make it upside down”) and/or prohibited rotations rather than requiring each individual rule variant to be sufficiently expressive.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Never

Never rotate the block.

Attach

Rotate the block so that the specified face meets the face it was placed against.

Fields

by: Face6

This face of the placed block will meet the face it was placed against.

If the block was somehow placed without such an adjacent block, it will not be rotated.

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for RotationPlacementRule

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for RotationPlacementRule

fn clone(&self) -> RotationPlacementRule

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RotationPlacementRule

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for RotationPlacementRule

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for RotationPlacementRule

fn eq(&self, other: &RotationPlacementRule) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl VisitHandles for RotationPlacementRule

fn visit_handles(&self, _: &mut dyn HandleVisitor)

For each Handle contained within self that is reachable without traversing another Handle, call visitor with a reference to it.

impl Copy for RotationPlacementRule

impl Eq for RotationPlacementRule

impl StructuralPartialEq for RotationPlacementRule