Hopefully this will inspire you to solve similar problems. So here you have a clear example of Transfer of Learning. project was to demonstrate the advantages of mixing compiled C code and python scripting. Here you could check the solution found by the above scripts: A GUI based solver and analyzer for the game Peg Solitaire. Here a relevant bit from the C++ code: if (( j + 2 ) < 7 & M = 1 & M = 0 ) (the refactor is not complete, so feel free to improve the solution and submit a pull request). For instance, for the position within the matrix a valid movement Regarding movements for a given position within the matrix we should check all possible I then assigned some numeric codesĭepending on if the peg is present (1), not present (0) and if the position is outside of We could just model the board as a 7x7 matrix. So the only missing thing was how to model the Peg Solitaire board and its movements. Where it can’t a find solution it “goes back” and tries a new path. You to explore all possible solutions for a given problem. There was an “Aha!” moment when I learntĪbout some algorithmic technique called Backtracking. My first adventures on programming with C++. But then, some years later I started at the University with To find a solution and my best score was having 2 pegs left. When I was a kid I struggled with Peg Solitaire. holes that are consecutive adjacent holes A, B and C, if A and B have a peg. Next, we need to make a list of all the possible moves using the list of directions.Solving the Peg Solitaire with Backtracking Peg solitaire is a board game played on a board that contains a collection. We first need to create a list of all the possible directions that a peg can be moved. There is one last major thing that has to happen before the player's move can be executed: the move must be validated. / /// /// The hole on the board to flip.īoardLayout = !boardLayout / hole on the board is empty, it will flip it to contain / contains a peg, it will flip it to be empty. Flip the ending hole so that it contains the peg // that was in action. Move the peg one more time in the specific // direction so that it is now in the ending hole. Flip the next hole so that it is empty. Move the peg one hole in the specific direction. Flip the starting hole in the move so that it // is now empty. Position peg = new Position(move.StartPosition) / /// /// Returns the move that is taking place. Below is the function InitializeBoard() that sets up a new game board:Ĭopy Code /// /// Takes a peg and jumps to the ending hole. For the game's purposes, true represents that a peg is present and false represents an empty hole. A BitArray manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on (1) and false indicates the bit is off (0). The backbone of the game is the board, which is a List that contains BitArrays. The source code in the project is very well commented, and should be easy to follow by adding some breakpoints on the mouse events. I just want to give a real basic overview of the code. Now, my game works even better, and if I ever want to add more rows to the board, I can without any code changes. I figured that this would be very helpful, so I took his logic and applied it to my game. It was very informative, and he had even written an application in C++ that would generate all the possible solutions to the game. I came across an article written by Daniel O'Brien. So, what I decided to do was search Google for the game logic. I would have to go in and add every new move to the list, and it would get real big very quickly. This seemed fine at the beginning, but what if I wanted to be able to add another row on the fly. I had a huge switch statement that listed every possible move, and when a player would make a move, it would check to see if it was on the list. I created the whole game and had it working, but I knew that my game logic was really sloppy. I knew that I had to create a bunch of pegs, and that the player needed to be able to drag a peg from one hole to another. I really didn't do that much planning for this. I thought it would be cool if I could create this game from scratch. Well, the other day, I was eating at Cracker Barrel, and I was playing their peg game on the table. Years later, I made Tic Tac Toe using C#. As I was creating it, I learned so many different things, and it also got me very interested in making games. I had never created any games before, nor had I ever been exposed to any game logic. Back when I was in college, we had to create the old game of Nim as a console application in C++.
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