Struct EntityPhysicsState 

pub(crate) struct EntityPhysicsState {
    position: DVec3,
    bounding_box: WorldAabb,
    max_up_step: f32,
    backs_off_from_edge: bool,
    on_ground: bool,
    fall_distance: f64,
    descending: bool,
    can_walk_on_powder_snow: bool,
    is_falling_block: bool,
}

Immutable entity movement input used by the collision resolver.

Steel keeps authoritative physical state on EntityBase; this type is a narrow snapshot of the fields vanilla Entity.move needs while resolving a single movement.

Fields

position: DVec3

Current position (center of bounding box at feet level).

bounding_box: WorldAabb

Entity’s axis-aligned bounding box in world coordinates.

max_up_step: f32

Maximum height the entity can step up automatically.

backs_off_from_edge: bool

Whether the entity backs away from ledges for this movement.

on_ground: bool

Whether the entity is on the ground (affects step-up and jump mechanics).

fall_distance: f64

Remaining fall distance for fall damage calculation.

descending: bool

Whether vanilla collision context should treat this entity as descending.

can_walk_on_powder_snow: bool

Whether vanilla lets this entity walk on powder snow.

is_falling_block: bool

Whether vanilla collision context should treat this entity as a falling block.

Implementations

impl EntityPhysicsState

pub const fn new( position: DVec3, bounding_box: WorldAabb, max_up_step: f32, ) -> Self

Creates a new physics state from the current entity bounding box.

Vanilla Entity.move resolves movement from the entity’s actual boundingBox, not a box reconstructed from dimensions.

pub const fn position(self) -> DVec3

Returns the current bottom-center position.

pub const fn bounding_box(self) -> WorldAabb

Returns the current world-space bounding box.

pub const fn max_up_step(self) -> f32

Returns the maximum automatic step-up height.

pub const fn backs_off_from_edge(self) -> bool

Returns whether sneak-edge prevention should apply.

pub const fn on_ground(self) -> bool

Returns whether the entity was on ground before movement.

pub const fn fall_distance(self) -> f64

Returns the accumulated fall distance before movement.

pub const fn block_collision_context(self) -> BlockCollisionContext

Returns the vanilla block collision context for this movement snapshot.

pub const fn with_on_ground(self, on_ground: bool) -> Self

Returns a copy with the pre-movement ground flag set.

pub const fn with_backs_off_from_edge(self, backs_off_from_edge: bool) -> Self

Returns a copy with sneak-edge prevention enabled or disabled.

pub const fn with_fall_distance(self, fall_distance: f64) -> Self

Returns a copy with the accumulated fall distance set.

pub const fn with_descending(self, descending: bool) -> Self

Returns a copy with the collision-context descending flag set.

pub const fn with_can_walk_on_powder_snow( self, can_walk_on_powder_snow: bool, ) -> Self

Returns a copy with powder-snow walkability set.

pub const fn with_falling_block(self, is_falling_block: bool) -> Self

Returns a copy with falling-block collision context set.

Trait Implementations

impl Clone for EntityPhysicsState

fn clone(&self) -> EntityPhysicsState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EntityPhysicsState

impl Debug for EntityPhysicsState

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

Formats the value using the given formatter.