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