Nonogram Solver

By Luke Meier and Drew Hayward

Summary

This program includes the interface and design of a Nonogram class and a NonogramSolver class that has the capability of solving Nonograms that have only one solution. The solver has been tested up to 50x50 boards.

Nonogram Game Interface

• Create a random nonogram with Nonogram(width, height) or Nonogram(width, height, false) if you do not want the random generation to favor clustering.

• Save a nonogram configuration to a file with myNonogram.saveBoardConfig("filename.txt")

• Get and set values of the nonogram board with myNonogram.set(x,y) and myNonogram.get(x,y)

• Print a nonogram to the console with either myNon.print() or myNon.printWithHints()

• Check if two boards have equal contents with ==, or not equal with !=

• Get a row with myNon.getLine(index, true) or a column with myNon.getLine(index, false)

• Set a row with myNon.setLine(index, true) or a column with myNon.setLine(index, false)

• Check if your nonogram is solved with myNon.isSolved()

• Generate an copy of a nonogram with all the board unsolved with myNon.emptied()

• Create a nonogram from a file config with Nonogram("filename.txt")

  • To create a config file, follow this format:

   [width] [height]
   [1st column constraint #1] [1st column, constraint #2]
   [2nd column constraint #1] [2nd column, constraint #2] [2nd column, constraint #3]
   .
   .
   .
   [width column constraint #1]
   [1st row constraint #1] [1st row, constraint #2]
   [2nd row constraint #1]
   .
   .
   .
   [height column constraint #1] [height column constraint #2]
  

  • For example

   ex.
  
   5 2
   2
   1
   1
   2
   2
   1 2
   5
  

Nonogram Solver

• Create a new solver agent with NonogramSolver(myNon)
• Attempt to solve the nonogram with myNon.nearestSolution()
  • This does not necessarily return a solved board in the event it cannot be solved through just constraint satisfaction.
  • To make sure a board is actually solved, myNon.nearestSolution().isSolved()
• To print out iterations as the solver works use myNon.nearestSolution(true)