Struct ChunkDiff 

pub struct ChunkDiff {
    pub coord: ChunkCoord,
    pub changes: Vec<(usize, usize, f32, f32)>,
}

Records the difference between two chunk heightmaps (for terrain editing).

Fields

coord: ChunkCoord

changes: Vec<(usize, usize, f32, f32)>

Sparse list of (x, y, old_height, new_height).

Implementations

impl ChunkDiff

pub fn new(coord: ChunkCoord) -> Self

pub fn record(&mut self, x: usize, y: usize, old_h: f32, new_h: f32)

Record a height change.

pub fn apply(&self, hm: &mut HeightMap)

Apply this diff to a heightmap.

pub fn undo(&self, hm: &mut HeightMap)

Reverse (undo) this diff.

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

Trait Implementations

impl Clone for ChunkDiff

fn clone(&self) -> ChunkDiff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChunkDiff

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

Formats the value using the given formatter.