judge/manager/stratego.cpp

   1
   2
   3 #include "stratego.h"
   4
   5 using namespace std;
   6
   7 /**
   8  * Static variables
   9  */
  10
  11 //nothing, boulder, flag, spy, scout, miner, sergeant, lietenant, captain, major, colonel, general, marshal, bomb, error
  12 char  Piece::tokens[] = {'.','*','F','s','9','8','7','6','5','4','3','2','1','B','?'};
  13 int Piece::maxUnits[] = {0,0,1,1,8,5,4,4,4,3,2,1,1,6,0};
  14
  15
  16
  17 #ifdef BUILD_GRAPHICS
  18 Piece::TextureManager Piece::textures;
  19
  20 Piece::TextureManager::~TextureManager()
  21 {
  22         Array<Texture*>::Iterator i(*this);
  23         while (i.Good())
  24         {
  25                 delete (*i);
  26                 ++i;
  27         }
  28 }
  29
  30 Texture & Piece::TextureManager::operator[](const LUint & at)
  31 {
  32         while (Array<Texture*>::Size() <= at)
  33         {
  34                 char buffer[BUFSIZ];
  35                 sprintf(buffer, "images/piece%lu.bmp", Array<Texture*>::Size());
  36                 Array<Texture*>::Add(new Texture(buffer, false));
  37
  38         }
  39         return *(Array<Texture*>::operator[](at));
  40 }
  41 #endif //BUILD_GRAPHICS
  42
  43 /**
  44  * Gets the type of a piece, based off a character token
  45  * @param fromToken - character identifying the piece
  46  * @returns The type of the piece
  47  */
  48 Piece::Type Piece::GetType(char fromToken)
  49 {
  50         for (int ii=0; ii <= (int)(Piece::BOMB); ++ii)
  51         {
  52                 if (tokens[ii] == fromToken)
  53                 {
  54                         return Type(Piece::NOTHING + ii);
  55                 }
  56         }
  57         return Piece::BOULDER;
  58 }
  59
  60 /**
  61  * Gets the opposite to the indicated colour
  62  */
  63 Piece::Colour Piece::OppositeColour(const Colour & colour)
  64 {
  65         switch (colour)
  66         {
  67                 case Piece::RED:
  68                         return Piece::BLUE;
  69                         break;
  70                 case Piece::BLUE:
  71                         return Piece::RED;
  72                         break;
  73                 case Piece::BOTH:
  74                         return Piece::BOTH;
  75                         break;
  76                 case Piece::NONE:
  77                         return Piece::NONE;
  78         }
  79 }
  80
  81 /**
  82  * Construct a new, empty board
  83  * @param newWidth - the width of the board
  84  * @param newHeight - the height of the board
  85  */
  86 Board::Board(int newWidth, int newHeight) : winner(Piece::NONE), width(newWidth), height(newHeight), board(NULL), pieces()
  87 {
  88         board = new Piece**[width];
  89         for (int x=0; x < width; ++x)
  90         {
  91                 board[x] = new Piece*[height];
  92                 for (int y=0; y < height; ++y)
  93                         board[x][y] = NULL;
  94         }
  95 }
  96
  97 /**
  98  * Cleanup a board
  99  */
 100 Board::~Board()
 101 {
 102         for (int x=0; x < width; ++x)
 103         {
 104                 for (int y=0; y < height; ++y)
 105                         delete board[x][y];
 106                 delete [] board[x];
 107         }
 108 }
 109
 110 /**
 111  * Print textual representation of the board to a stream
 112  * @param stream - the stream to print information to
 113  * @param reveal - Pieces matching this colour will have their identify revealed, other pieces will be shown as '#'
 114  */
 115 void Board::Print(FILE * stream, const Piece::Colour & reveal)
 116 {
 117         for (int y=0; y < height; ++y)
 118         {
 119                 for (int x=0; x < width; ++x)
 120                 {
 121                         Piece * piece = board[x][y];
 122                         if (piece == NULL)
 123                         {
 124                                 fprintf(stream, ".");
 125                         }
 126                         else if (piece->colour != Piece::NONE && (piece->colour == reveal || reveal == Piece::BOTH))
 127                         {
 128
 129                                 fprintf(stream, "%c", Piece::tokens[piece->type]);
 130
 131
 132                         }
 133                         else
 134                         {
 135                                 switch (piece->colour)
 136                                 {
 137                                         case Piece::RED:
 138                                         case Piece::BLUE:
 139                                                 fprintf(stream, "#");
 140                                                 break;
 141                                         case Piece::NONE:
 142                                                 fprintf(stream, "+");
 143                                                 break;
 144                                         case Piece::BOTH:
 145                                                 fprintf(stream, "$");
 146                                                 break;
 147                                 }
 148                         }
 149                 }
 150                 fprintf(stream, "\n");
 151         }
 152
 153 }
 154
 155 /**
 156  * Print textual representation of the board to a stream
 157  * @param stream - the stream to print information to
 158  * @param reveal - Pieces matching this colour will have their identify revealed, other pieces will be shown as '#'
 159  */
 160 void Board::PrintPretty(FILE * stream, const Piece::Colour & reveal, bool showRevealed)
 161 {
 162         for (int y=0; y < height; ++y)
 163         {
 164                 for (int x=0; x < width; ++x)
 165                 {
 166                         Piece * piece = board[x][y];
 167                         if (piece == NULL)
 168                         {
 169                                 fprintf(stream, ".");
 170                         }
 171                         else if ((piece->colour != Piece::NONE && (piece->colour == reveal || reveal == Piece::BOTH))
 172                                         || (piece->beenRevealed && showRevealed))
 173                         {
 174                                 switch (piece->colour)
 175                                 {
 176                                         case Piece::RED:
 177                                                 fprintf(stream, "%c[%d;%d;%dm",0x1B,1,31,40);
 178                                                 break;
 179                                         case Piece::BLUE:
 180                                                 fprintf(stream, "%c[%d;%d;%dm",0x1B,1,34,40);
 181                                                 break;
 182                                         default:
 183                                                 break;
 184                                 }
 185                                 fprintf(stream, "%c", Piece::tokens[piece->type]);
 186
 187                         }
 188                         else
 189                         {
 190                                 switch (piece->colour)
 191                                 {
 192                                         case Piece::RED:
 193                                                 fprintf(stream, "%c[%d;%d;%dm",0x1B,1,31,41);
 194
 195                                                 break;
 196                                         case Piece::BLUE:
 197                                                 fprintf(stream, "%c[%d;%d;%dm",0x1B,1,34,44);
 198                                                 break;
 199                                         case Piece::NONE:
 200                                                 fprintf(stream, "%c[%d;%d;%dm",0x1B,1,37,47);
 201                                                 break;
 202                                         case Piece::BOTH:
 203                                                 //Should never see this
 204                                                 fprintf(stream, "%c[%d;%d;%dm",0x1B,1,33,43);
 205                                                 break;
 206
 207                                 }
 208                                 fprintf(stream, "#");
 209
 210                         }
 211                         fprintf(stream, "%c[%d;%d;%dm",0x1B,0,7,0);
 212                 }
 213                 fprintf(stream, "\n");
 214         }
 215
 216 }
 217
 218
 219 #ifdef BUILD_GRAPHICS
 220 /**
 221  * Draw the board state to graphics
 222  * @param reveal - Pieces matching this colour will be revealed. If Piece::BOTH, all pieces will be revealed
 223  * @param showRevealed - If true, then all pieces that have taken part in combat will be revealed, regardless of colour.
 224  *                       If false, only pieces matching the colour reveal will be revealed
 225  */
 226 void Board::Draw(const Piece::Colour & reveal, bool showRevealed)
 227 {
 228
 229         if (!Graphics::Initialised())
 230         {
 231                 fprintf(stderr, "ERROR - Board::Draw called whilst graphics disabled!!!\n");
 232                 exit(EXIT_FAILURE);
 233
 234         }
 235
 236         Graphics::ClearScreen();
 237
 238         for (int y=0; y < height; ++y)
 239         {
 240                 for (int x=0; x < width; ++x)
 241                 {
 242                         Piece * piece = board[x][y];
 243                         if (piece == NULL)
 244                         {
 245                                 //Don't display anything
 246
 247                         }
 248                         else if ((piece->colour != Piece::NONE && (piece->colour == reveal || reveal == Piece::BOTH))
 249                                         || (piece->beenRevealed && showRevealed))
 250                         {
 251                                 //Display the piece
 252                                 Piece::textures[(int)(piece->type)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 253
 254                         }
 255                         else
 256                         {
 257                                 switch (piece->colour)
 258                                 {
 259                                         case Piece::RED:
 260                                                 Piece::textures[(int)(Piece::NOTHING)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 261                                                 break;
 262                                         case Piece::BLUE:
 263                                                 Piece::textures[(int)(Piece::NOTHING)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 264                                                 break;
 265                                         case Piece::NONE:
 266                                                 Piece::textures[(int)(Piece::BOULDER)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 267                                                 break;
 268                                         case Piece::BOTH:
 269                                                 Piece::textures[(int)(Piece::BOULDER)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 270                                                 break;
 271                                 }
 272                         }
 273                 }
 274
 275         }
 276         Graphics::UpdateScreen();
 277
 278 }
 279 #endif //BUILD_GRAPHICS
 280
 281 /**
 282  * Adds a piece to the board
 283  * @param x - x-coord to place the piece at, starting at zero, must be less than board width
 284  * @param y - y-coord to place the piece at, starting at zero, must be less than board height
 285  * @param newType - the Type of the piece
 286  * @param newColour - the Colour of the piece
 287  * @returns true if and only if the piece could be successfully added.
 288  */
 289 bool Board::AddPiece(int x, int y, const Piece::Type & newType, const Piece::Colour & newColour)
 290 {
 291         if (board == NULL || x < 0 || y < 0 || x >= width || y >= width || board[x][y] != NULL)
 292                 return false;
 293
 294         Piece * piece = new Piece(newType, newColour);
 295         board[x][y] = piece;
 296
 297         pieces.push_back(piece);
 298         return true;
 299 }
 300
 301 /**
 302  * Gets a pointer to a piece at a board location
 303  * UNUSED
 304  * @param x - x-coord of the piece
 305  * @param y - y-coord of the piece
 306  * @returns pointer to the piece, or NULL if the board location was empty
 307  * @throws error if board is null or coords are invalid
 308  */
 309 Piece * Board::GetPiece(int x, int y)
 310 {
 311         assert(board != NULL);
 312         assert(x >= 0 && x < width && y >= 0 && y < height);
 313         return board[x][y];
 314 }
 315
 316 /**
 317  * Moves a piece at a specified position in the specified direction, handles combat if necessary, updates state of the board
 318  * @param x - x-coord of the piece
 319  * @param y - y-coord of the piece
 320  * @param direction - Direction in which to move (UP, DOWN, LEFT or RIGHT)
 321  * @param colour - Colour which the piece must match for the move to be valid
 322  * @returns A MovementResult which indicates the result of the move
 323  */
 324 MovementResult Board::MovePiece(int x, int y, const Direction & direction, int multiplier,const Piece::Colour & colour)
 325 {
 326         if (board == NULL)
 327         {
 328                 return MovementResult(MovementResult::NO_BOARD);
 329         }
 330         if (!(x >= 0 && x < width && y >= 0 && y < height))
 331         {
 332                 return MovementResult(MovementResult::INVALID_POSITION);
 333         }
 334         Piece * target = board[x][y];
 335         if (target == NULL)
 336         {
 337                 return MovementResult(MovementResult::NO_SELECTION);
 338         }
 339         if (!(colour == Piece::NONE || target->colour == colour))
 340         {
 341                 return MovementResult(MovementResult::NOT_YOUR_UNIT);
 342         }
 343         if (target->type == Piece::FLAG || target->type == Piece::BOMB || target->type == Piece::BOULDER)
 344         {
 345                 return MovementResult(MovementResult::IMMOBILE_UNIT);
 346         }
 347         if (multiplier < 1)
 348                 return MovementResult(MovementResult::INVALID_DIRECTION); //Don't allow moves that don't actually move forward
 349         if (multiplier > 1 && target->type != Piece::SCOUT)
 350         {
 351                 return MovementResult(MovementResult::INVALID_DIRECTION); //Can only move a scout multiple times.
 352         }
 353         int x2 = x; int y2 = y;
 354
 355         for (int ii=0; ii < multiplier; ++ii)
 356         {
 357                 switch (direction)
 358                 {
 359                         case UP:
 360                                 --y2;
 361                                 break;
 362                         case DOWN:
 363                                 ++y2;
 364                                 break;
 365                         case LEFT:
 366                                 --x2;
 367                                 break;
 368                         case RIGHT:
 369                                 ++x2;
 370                                 break;
 371                 }
 372                 if (!(x2 >= 0 && x2 < width && y2 >= 0 && y2 < height))
 373                 {
 374                         return MovementResult(MovementResult::INVALID_DIRECTION);
 375                 }
 376                 if (ii < multiplier-1 && board[x2][y2] != NULL)
 377                 {
 378                         return MovementResult(MovementResult::POSITION_FULL);
 379                 }
 380         }
 381         Piece * defender = board[x2][y2];
 382         if (defender == NULL)
 383         {
 384                 board[x][y] = NULL;
 385                 board[x2][y2] = target;
 386         }
 387         else if (defender->colour != target->colour)
 388         {
 389                 defender->beenRevealed = true;
 390                 target->beenRevealed = true;
 391
 392                 Piece::Type defenderType = defender->type;
 393                 Piece::Type attackerType = target->type;
 394
 395                 if (defender->colour == Piece::NONE)
 396                 {
 397                         return MovementResult(MovementResult::POSITION_FULL);
 398                 }
 399                 if (defender->type == Piece::FLAG)
 400                 {
 401                         winner = target->colour;
 402                         return MovementResult(MovementResult::VICTORY_FLAG);
 403                 }
 404                 else if (defender->type == Piece::BOMB)
 405                 {
 406                         if (target->type == Piece::MINER)
 407                         {
 408                                 RemovePiece(defender);
 409                                 delete defender;
 410                                 board[x][y] = NULL;
 411                                 board[x2][y2] = target;
 412                                 return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 413                         }
 414                         else
 415                         {
 416                                 //Use this to destroy only the attacking piece, and not the bomb
 417                                 RemovePiece(target);
 418                                 delete target;
 419                                 board[x][y] = NULL;
 420                                 return MovementResult(MovementResult::DIES, attackerType, defenderType);
 421
 422                                 /*
 423                                 //Use this to destroy both the bomb and the attacking piece
 424                                 RemovePiece(defender);
 425                                 RemovePiece(target);
 426                                 delete defender;
 427                                 delete target;
 428                                 board[x][y] = NULL;
 429                                 board[x2][y2] = NULL;
 430                                 return MovementResult(MovementResult::BOTH_DIE, attackerType, defenderType);
 431                                 */
 432                         }
 433                 }
 434                 else if (defender->type == Piece::MARSHAL && target->type == Piece::SPY)
 435                 {
 436                         RemovePiece(defender);
 437                         delete defender;
 438                         board[x][y] = NULL;
 439                         board[x2][y2] = target;
 440                         return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 441                 }
 442                 else if (target->operator > (*defender))
 443                 {
 444                         RemovePiece(defender);
 445                         delete defender;
 446                         board[x][y] = NULL;
 447                         board[x2][y2] = target;
 448                         return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 449                 }
 450                 else if (target->operator==(*defender))// && rand() % 2 == 0)
 451                 {
 452                         RemovePiece(defender);
 453                         RemovePiece(target);
 454                         delete defender;
 455                         delete target;
 456                         board[x][y] = NULL;
 457                         board[x2][y2] = NULL;
 458                         return MovementResult(MovementResult::BOTH_DIE, attackerType, defenderType);
 459                 }
 460                 else
 461                 {
 462                         RemovePiece(target);
 463                         delete target;
 464                         board[x][y] = NULL;
 465                         return MovementResult(MovementResult::DIES, attackerType, defenderType);
 466                 }
 467         }
 468         else
 469         {
 470                 return MovementResult(MovementResult::POSITION_FULL);
 471         }
 472         return MovementResult(MovementResult::OK);
 473 }
 474
 475 /**
 476  * Removes a piece from the board
 477  * @param piece The piece to remove
 478  * @returns true iff the piece actually existed
 479  */
 480 bool Board::RemovePiece(Piece * piece)
 481 {
 482         bool result = false;
 483         for (int x = 0; x < width; ++x)
 484         {
 485                 for (int y = 0; y < height; ++y)
 486                 {
 487                         if (board[x][y] == piece)
 488                         {
 489                                 result = true;
 490                                 board[x][y] = NULL;
 491                         }
 492                 }
 493         }
 494
 495         vector<Piece*>::iterator i = pieces.begin();
 496         while (i != pieces.end())
 497         {
 498                 if ((*i) == piece)
 499                 {
 500                         i = pieces.erase(i);
 501                         result = true;
 502                         continue;
 503                 }
 504                 ++i;
 505         }
 506         return result;
 507 }
 508
 509 /**
 510  * Returns the total value of pieces belonging to colour
 511  * @param colour the colour
 512  * @returns the total value of pieces belonging to colour.
 513  *      (Redundant repetition <3)
 514  */
 515 int Board::TotalPieceValue(const Piece::Colour & colour) const
 516 {
 517         int result = 0;
 518         for (vector<Piece*>::const_iterator i = pieces.begin(); i != pieces.end(); ++i)
 519         {
 520                 if ((*i)->colour == colour || colour == Piece::BOTH)
 521                 {
 522                         result += (*i)->PieceValue();
 523                 }
 524         }
 525         return result;
 526 }
 527
 528 /**
 529  * Returns the total number of mobile pieces belonging to colour
 530  * @param colour the colour
 531  * @returns the total value of mobile pieces belonging to colour.
 532  *      (Redundant repetition <3)
 533  */
 534 int Board::MobilePieces(const Piece::Colour & colour) const
 535 {
 536         int result = 0;
 537         for (vector<Piece*>::const_iterator i = pieces.begin(); i != pieces.end(); ++i)
 538         {
 539                 if ((*i)->colour == colour || colour == Piece::BOTH)
 540                 {
 541                         if ((*i)->type <= Piece::MARSHAL && (*i)->type >= Piece::SPY)
 542                                 result++;
 543                 }
 544         }
 545         return result;
 546 }
 547
 548