Tile Class (extends Button)

• State Variables: isEmpty (boolean), value (int), neighbors (Optional[4]), Direction( enumLEFT, RIGHT, UP, DOWN), int x, int y
• Tile(value)
• Getters/Setters
• pull(Direction)
• Returns the current value and calls empty()
• swap(Tile)
• Should only happen if this is Empty
• Sets value to output of pull(); sets isEmpty to false.
• empty() - will set isEmpty to true, set value to 16
• onClick:
• If dist from emptyButton = 1:
• Call emptyButton.swap(this)

Permutation Class

• Permutation (int n) - create , through IllegalArgumentException if n <= 0
• Ordering[]2
• isEven()
• applyToList() - check for corr
• applyToArray
• applyTo2DArray (nxn)

Behaviors

• Creation of the Screen
• Utilizes the Permutation to order the values 1-16
• Swapping
• Calls methods of the two adjacent tiles.
• Winning
• Checks for the order of the tiles to see if it is sorted.

Tasks:

• Make Permutation Class (Bo)
• Define/style GUI interface (Jake)
• Behavior of Tile Class (David)
• Start Making Algorithm (Pranet)

Algorithm

TBD (Pranet)