StatePair

data class StatePair(puzzleState: ArrayList<Int>, blankTilePos: Int)

Pair representing a puzzle state (flattened into one dimension, following row-major order) alongside the position of the blank tile in the puzzle grid (zero-based, following row-major order).

Note that, although the position of the blank tile can be inferred from the puzzle state, it is being tracked in the interest of efficiency (that is, to avoid linear searching).

Parameters

puzzleState

Puzzle state (flattened into one dimension, following row-major order).

blankTilePos

Position of the blank tile in the puzzle grid (zero-based, following row-major order).

Constructors

StatePair

fun StatePair(puzzleState: ArrayList<Int>, blankTilePos: Int)

Creates an object that represents a puzzle state (flattened into one dimension, following row-major order) alongside the position of the blank tile in the puzzle grid (zero-based, following row-major order).

Properties

blankTilePos

val blankTilePos: Int

Position of the blank tile in the puzzle grid (zero-based, following row-major order).

puzzleState

val puzzleState: ArrayList<Int>

Puzzle state (flattened into one dimension, following row-major order).