Fixed segfault in manager program
Caused by the Program base class attempting to write EOF to programs which had already exited. This caused a SIGPIPE signal. The SIGPIPE handler function Game::HandleBrokenPipe then attempted to log the event by calling Game::theGame->logMessage However, since the program was exiting, DestroyGame had been called and Game::theGame was in the process of being deleted. Fixed by removing the fputc(output, EOF) line in Program::~Program. It is ironic that this only became an issue since I modified the sample AI to actually obey the protocol and exit as soon as "QUIT" is recieved...
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samples/dummy/info
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100644 → 0
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| /** | |||
| * "forfax", a sample Stratego AI for the UCC Programming Competition 2012 | |||
| * Declarations for classes Piece, Board and Forfax, Declaration/Implementation of helper class MovementChoice | |||
| * @author Sam Moore (matches) [SZM] | |||
| * @website http://matches.ucc.asn.au/stratego | |||
| * @email [email protected] or [email protected] | |||
| * @git git.ucc.asn.au/progcomp2012.git | |||
| */ | |||
| #ifndef FORFAX_H | |||
| #define FORFAX_H | |||
| #include <vector> //Uses C++ std::vectors to store pieces | |||
| #include <string> //Uses C++ std::string | |||
| #include <iostream> //For debug | |||
| #include <cassert> //For debug | |||
| class Board; //Forward declaration used by class Piece | |||
| /** | |||
| * Class to represent a piece on the board | |||
| */ | |||
| class Piece | |||
| { | |||
| public: | |||
| typedef enum {ERROR=14,BOMB=13,MARSHAL=12, GENERAL=11, COLONEL=10, MAJOR=9, CAPTAIN=8, LIEUTENANT=7, SERGEANT=6, MINER=5, SCOUT=4, SPY=3, FLAG=2,BOULDER=1, NOTHING=0} Type; //Type basically defines how strong the piece is | |||
| typedef enum {RED=0, BLUE=1, NONE, BOTH} Colour; //Used for the allegiance of the pieces - terrain counts as NONE. | |||
| Piece(int newX, int newY,const Colour & newColour); | |||
| Piece(int newX, int newY,const Colour & newColour, const Type & fixedRank); | |||
| virtual ~Piece() {} | |||
| void SetCoords(int newX, int newY) {x = newX; y = newY;} | |||
| void GetCoords(int & storeX, int & storeY) const {storeX = x; storeY = y;} | |||
| const Colour & GetColour() const {return colour;} | |||
| static char tokens[]; //The tokens used to identify various pieces | |||
| static int maxUnits[]; //The maximum allowed number of units of each piece | |||
| static Type GetType(char fromToken); //Retrieves the type of a piece given its character token | |||
| static Colour Opposite(const Colour & colour) {return colour == RED ? BLUE : RED;} | |||
| bool Mobile() const | |||
| { | |||
| if (minRank == maxRank) | |||
| return (minRank != Piece::FLAG && minRank != Piece::BOMB); | |||
| else | |||
| return true; | |||
| } | |||
| int x; int y; | |||
| const Colour colour; //The colour of the piece | |||
| Type minRank; //The minimum possible rank of the piece | |||
| Type maxRank; //The maximum possible rank of the piece | |||
| int lastMove; | |||
| int lastx; int lasty; | |||
| }; | |||
| /** | |||
| * Class to represent a board | |||
| */ | |||
| class Board | |||
| { | |||
| public: | |||
| Board(int width, int height); | |||
| virtual ~Board(); | |||
| std::vector<Piece*> & GetPieces(const Piece::Colour & colour) {return colour == Piece::RED ? red : blue;} //retrieve array of pieces | |||
| Piece * Get(int x, int y) const; //Retrieve single piece | |||
| Piece * GetClosest(int x, int y, const Piece::Colour & search = Piece::BOTH) const; //Retrieve closest piece of specified colour to the point | |||
| Piece * Set(int x, int y, Piece * newPiece); //Add piece to board | |||
| bool ValidPosition(int x, int y) const {return (x > 0 && x < width && y > 0 && y < height);} | |||
| int Width() const {return width;} | |||
| int Height() const {return height;} | |||
| typedef enum {UP=0, DOWN=1, LEFT=2, RIGHT=3, NONE=4} Direction; | |||
| static Direction StrToDir(const std::string & str); | |||
| static void DirToStr(const Direction & dir, std::string & buffer); | |||
| static void MoveInDirection(int & x, int & y, const Direction & dir, int multiplier = 1); | |||
| static Direction DirectionBetween(int x1, int y1, int x2, int y2); | |||
| static int NumberOfMoves(int x1, int y1, int x2, int y2); | |||
| static int redUnits[]; | |||
| static int blueUnits[]; | |||
| bool ForgetPiece(Piece * forget); //removes piece from the red and blue vectors | |||
| private: | |||
| friend class Forfax; | |||
| int width; | |||
| int height; | |||
| Piece ** * board; | |||
| std::vector<Piece*> red; //Store all red pieces | |||
| std::vector<Piece*> blue; //Store all blue pieces | |||
| }; | |||
| /** | |||
| * Class to manage the Forfax AI | |||
| */ | |||
| class Forfax | |||
| { | |||
| public: | |||
| Forfax(); | |||
| virtual ~Forfax(); | |||
| typedef enum {OK, NO_NEWLINE, EXPECTED_ATTACKER, UNEXPECTED_DEFENDER, NO_ATTACKER, NO_DEFENDER, COLOUR_MISMATCH, INVALID_QUERY, BOARD_ERROR, VICTORY} Status; | |||
| Status Setup(); //Waits for input to determine colour and board size, and then responds with setup | |||
| Status MakeMove(); //Should be called each turn - determines Forfax's move | |||
| //Move score functions | |||
| double MovementScore(Piece * move, const Board::Direction & dir) const; //Calculate total score | |||
| double CombatSuccessChance(Piece * attacker, Piece * defender) const; //Calculate chance of success in combat | |||
| double CombatScore(int x, int y, Piece * attacker) const; //Calculate total worth of combat at a point | |||
| double IntrinsicWorth(int x, int y) const; //How much a given point on the board is worth | |||
| double VictoryScore(Piece * attacker, Piece * defender) const; //How much killing the defender is worth | |||
| double DefeatScore(Piece * attacker, Piece * defender) const; //How much losing is worth | |||
| void PrintBoard(std::ostream & out); | |||
| protected: | |||
| Status MakeFirstMove(); //Should only be called on the first turn | |||
| Status InterpretMove(); | |||
| private: | |||
| Board * board; //Forfax stores the state on a board | |||
| Piece::Colour colour; //Forfax needs to know his colour | |||
| std::string strColour; //String of colour | |||
| int turnNumber; //Forfax needs to know what turn number it is | |||
| static int remainingUnits[2][15]; //Known remaining units, accessed by [colour][type] | |||
| }; | |||
| /** | |||
| * Helper class used to store various moves in the board, and their associated scores | |||
| */ | |||
| class MovementChoice | |||
| { | |||
| public: | |||
| MovementChoice(Piece * newPiece, const Board::Direction & newDir, const Forfax & forfax) : piece(newPiece), dir(newDir) | |||
| { | |||
| score = forfax.MovementScore(piece, dir); | |||
| } | |||
| MovementChoice(const MovementChoice & cpy) : piece(cpy.piece), dir(cpy.dir), score(cpy.score) | |||
| { | |||
| } | |||
| bool operator<(const MovementChoice & a) const {return score < a.score;} | |||
| bool operator>(const MovementChoice & a) const {return score > a.score;} | |||
| bool operator<=(const MovementChoice & a) const {return score <= a.score;} | |||
| bool operator>=(const MovementChoice & a) const {return score >= a.score;} | |||
| bool operator==(const MovementChoice & a) const {return score == a.score;} | |||
| bool operator!=(const MovementChoice & a) const {return score != a.score;} | |||
| Piece * piece; | |||
| Board::Direction dir; | |||
| double score; | |||
| }; | |||
| #endif //FORFAX_H | |||
| //EOF | |||
samples/forfax/info
deleted
100644 → 0
| /** | |||
| * "forfax", a sample Stratego AI for the UCC Programming Competition 2012 | |||
| * The main function for the "forfax" AI program | |||
| * @author Sam Moore (matches) [SZM] | |||
| * @website http://matches.ucc.asn.au/stratego | |||
| * @email [email protected] or [email protected] | |||
| * @git git.ucc.asn.au/progcomp2012.git | |||
| */ | |||
| #include <cstdlib> | |||
| #include <iostream> | |||
| #include "forfax.h" | |||
| using namespace std; | |||
| #include <stdio.h> | |||
| /** | |||
| * The AI | |||
| */ | |||
| Forfax forfax; | |||
| /** | |||
| * The main function | |||
| * @param argc the number of arguments | |||
| * @param argv the arguments | |||
| * @returns exit code 0 for success, something else for error | |||
| * Do I really need to tell you this? | |||
| */ | |||
| int main(int argc, char ** argv) | |||
| { | |||
| setbuf(stdin, NULL); | |||
| setbuf(stdout, NULL); | |||
| Forfax::Status move = forfax.Setup(); | |||
| while (move == Forfax::OK) | |||
| { | |||
| move = forfax.MakeMove(); | |||
| } | |||
| /* | |||
| switch (move) | |||
| { | |||
| case Forfax::OK: | |||
| cerr << argv[0] << " Error - Should never see this!\n"; | |||
| break; | |||
| case Forfax::NO_NEWLINE: | |||
| cerr << argv[0] << " Error - Expected a new line!\n"; | |||
| break; | |||
| case Forfax::EXPECTED_ATTACKER: | |||
| cerr << argv[0] << " Error - Attacking piece does not exist on board!\n"; | |||
| break; | |||
| case Forfax::UNEXPECTED_DEFENDER: | |||
| cerr << argv[0] << " Error - Unexpected defending piece on board!\n"; | |||
| break; | |||
| case Forfax::NO_ATTACKER: | |||
| cerr << argv[0] << " Error - Couldn't find attacker in list of pieces!\n"; | |||
| break; | |||
| case Forfax::NO_DEFENDER: | |||
| cerr << argv[0] << " Error - Couldn't find defender in list of pieces!\n"; | |||
| break; | |||
| case Forfax::COLOUR_MISMATCH: | |||
| cerr << argv[0] << " Error - Colour of attacker and defender are the same!\n"; | |||
| break; | |||
| case Forfax::INVALID_QUERY: | |||
| cerr << argv[0] << " Error - Query did not make sense\n"; | |||
| break; | |||
| case Forfax::VICTORY: | |||
| cerr << argv[0] << " Game end - VICTORY!\n"; | |||
| break; | |||
| case Forfax::BOARD_ERROR: | |||
| cerr << argv[0] << " Error - An error occurred with the board!\n"; | |||
| break; | |||
| } | |||
| */ | |||
| //cerr << "Final board state:\n"; | |||
| //forfax.PrintBoard(cerr); | |||
| //cerr << "Forfax is now exiting!\n"; | |||
| exit(EXIT_SUCCESS); | |||
| return 0; | |||
| } | |||
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