/** Create a solver instance and configures it with initial and goal state. */
private void constructPuzzleSolver() {
pSolver = null;
// this is the call to the actual implementation of PuzzleSolver
if ("DFS".equals(solver)) pSolver = new DFSSolver();
if ("BFS".equals(solver)) pSolver = new BFSSolver();
if ("ASTAR".equals(solver)) pSolver = new AStarSolver();
if (null == pSolver) // default case, make sure we have a solver
pSolver = new BFSSolver();
pSolver.configure(initalPuzzleGraphics.getPuzzle(), finalPuzzleGraphics.getPuzzle());
}
