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)
  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 '#' or '*' for RED or BLUE respectively.
  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                                 fprintf(stream, "%c", Piece::tokens[piece->type]);
 111                         }
 112                         else
 113                         {
 114                                 switch (piece->colour)
 115                                 {
 116                                         case Piece::RED:
 117                                                 fprintf(stream, "#");
 118                                                 break;
 119                                         case Piece::BLUE:
 120                                                 fprintf(stream, "*");
 121                                                 break;
 122                                         case Piece::NONE:
 123                                                 fprintf(stream, "+");
 124                                                 break;
 125                                         case Piece::BOTH:
 126                                                 fprintf(stream, "$"); //Should never see these!
 127                                                 break;
 128                                 }
 129                         }
 130                 }
 131                 fprintf(stream, "\n");
 132         }
 133
 134 }
 135
 136
 137
 138 /**
 139  * Draw the board state to graphics
 140  * @param reveal - Pieces matching this colour will be revealed. All others will be shown as blank coloured squares.
 141  */
 142 void Board::Draw(const Piece::Colour & reveal)
 143 {
 144         if (!Graphics::Initialised())
 145         {
 146                 fprintf(stderr, "ERROR - Board::Draw called whilst graphics disabled!!!\n");
 147                 exit(EXIT_FAILURE);
 148
 149         }
 150
 151         Graphics::ClearScreen();
 152
 153         for (int y=0; y < height; ++y)
 154         {
 155                 for (int x=0; x < width; ++x)
 156                 {
 157                         Piece * piece = board[x][y];
 158                         if (piece == NULL)
 159                         {
 160                                 //Don't display anything
 161
 162                         }
 163                         else if (piece->colour != Piece::NONE && (piece->colour == reveal || reveal == Piece::BOTH))
 164                         {
 165                                 //Display the piece
 166                                 Piece::textures[(int)(piece->type)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 167
 168                         }
 169                         else
 170                         {
 171                                 switch (piece->colour)
 172                                 {
 173                                         case Piece::RED:
 174                                                 Piece::textures[(int)(Piece::NOTHING)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 175                                                 break;
 176                                         case Piece::BLUE:
 177                                                 Piece::textures[(int)(Piece::NOTHING)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 178                                                 break;
 179                                         case Piece::NONE:
 180                                                 Piece::textures[(int)(Piece::BOULDER)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 181                                                 break;
 182                                         case Piece::BOTH:
 183                                                 Piece::textures[(int)(Piece::BOULDER)].DrawColour(x*32,y*32,0,1, Piece::GetGraphicsColour(piece->colour));
 184                                                 break;
 185                                 }
 186                         }
 187                 }
 188
 189         }
 190         Graphics::UpdateScreen();
 191
 192 }
 193
 194 /**
 195  * Adds a piece to the board
 196  * @param x - x-coord to place the piece at, starting at zero, must be less than board width
 197  * @param y - y-coord to place the piece at, starting at zero, must be less than board height
 198  * @param newType - the Type of the piece
 199  * @param newColour - the Colour of the piece
 200  * @returns true if and only if the piece could be successfully added.
 201  */
 202 bool Board::AddPiece(int x, int y, const Piece::Type & newType, const Piece::Colour & newColour)
 203 {
 204         if (board == NULL || x < 0 || y < 0 || x >= width || y >= width || board[x][y] != NULL)
 205                 return false;
 206
 207         Piece * piece = new Piece(newType, newColour);
 208         board[x][y] = piece;
 209         return true;
 210 }
 211
 212 /**
 213  * Gets a pointer to a piece at a board location
 214  * UNUSED
 215  * @param x - x-coord of the piece
 216  * @param y - y-coord of the piece
 217  * @returns pointer to the piece, or NULL if the board location was empty
 218  * @throws error if board is null or coords are invalid
 219  */
 220 Piece * Board::GetPiece(int x, int y)
 221 {
 222         assert(board != NULL);
 223         assert(x >= 0 && x < width && y >= 0 && y < height);
 224         return board[x][y];
 225 }
 226
 227 /**
 228  * Moves a piece at a specified position in the specified direction, handles combat if necessary
 229  * @param x - x-coord of the piece
 230  * @param y - y-coord of the piece
 231  * @param direction - Direction in which to move (UP, DOWN, LEFT or RIGHT)
 232  * @param colour - Colour which the piece must match for the move to be valid
 233  * @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
 234  */
 235 MovementResult Board::MovePiece(int x, int y, const Direction & direction, int multiplier,const Piece::Colour & colour)
 236 {
 237         if (board == NULL)
 238         {
 239                 return MovementResult(MovementResult::NO_BOARD);
 240         }
 241         if (!(x >= 0 && x < width && y >= 0 && y < height))
 242         {
 243                 return MovementResult(MovementResult::INVALID_POSITION);
 244         }
 245         Piece * target = board[x][y];
 246         if (target == NULL)
 247         {
 248                 return MovementResult(MovementResult::NO_SELECTION);
 249         }
 250         if (!(colour == Piece::NONE || target->colour == colour))
 251         {
 252                 return MovementResult(MovementResult::NOT_YOUR_UNIT);
 253         }
 254         if (target->type == Piece::FLAG || target->type == Piece::BOMB || target->type == Piece::BOULDER)
 255         {
 256                 return MovementResult(MovementResult::IMMOBILE_UNIT);
 257         }
 258         if (multiplier > 1 && target->type != Piece::SCOUT)
 259         {
 260                 return MovementResult(MovementResult::INVALID_DIRECTION); //Can only move a scout multiple times.
 261         }
 262         int x2 = x; int y2 = y;
 263
 264         for (int ii=0; ii < multiplier; ++ii)
 265         {
 266                 switch (direction)
 267                 {
 268                         case UP:
 269                                 --y2;
 270                                 break;
 271                         case DOWN:
 272                                 ++y2;
 273                                 break;
 274                         case LEFT:
 275                                 --x2;
 276                                 break;
 277                         case RIGHT:
 278                                 ++x2;
 279                                 break;
 280                 }
 281                 if (!(x2 >= 0 && x2 < width && y2 >= 0 && y2 < height))
 282                 {
 283                         return MovementResult(MovementResult::INVALID_DIRECTION);
 284                 }
 285                 if (ii < multiplier-1 && board[x2][y2] != NULL)
 286                 {
 287                         return MovementResult(MovementResult::POSITION_FULL);
 288                 }
 289         }
 290         Piece * defender = board[x2][y2];
 291         if (defender == NULL)
 292         {
 293                 board[x][y] = NULL;
 294                 board[x2][y2] = target;
 295         }
 296         else if (defender->colour != target->colour)
 297         {
 298                 Piece::Type defenderType = defender->type;
 299                 Piece::Type attackerType = target->type;
 300
 301                 if (defender->colour == Piece::NONE)
 302                 {
 303                         return MovementResult(MovementResult::POSITION_FULL);
 304                 }
 305                 if (defender->type == Piece::FLAG)
 306                 {
 307                         winner = target->colour;
 308                         return MovementResult(MovementResult::VICTORY);
 309                 }
 310                 else if (defender->type == Piece::BOMB)
 311                 {
 312                         if (target->type == Piece::MINER)
 313                         {
 314
 315                                 delete defender;
 316                                 board[x][y] = NULL;
 317                                 board[x2][y2] = target;
 318                                 return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 319                         }
 320                         else
 321                         {
 322                                 delete defender;
 323                                 delete target;
 324                                 board[x][y] = NULL;
 325                                 board[x2][y2] = NULL;
 326                                 return MovementResult(MovementResult::BOTH_DIE, attackerType, defenderType);
 327                         }
 328                 }
 329                 else if (defender->type == Piece::MARSHAL && target->type == Piece::SPY)
 330                 {
 331                         delete defender;
 332                         board[x][y] = NULL;
 333                         board[x2][y2] = target;
 334                         return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 335                 }
 336                 else if (target->operator > (*defender))
 337                 {
 338                         delete defender;
 339                         board[x][y] = NULL;
 340                         board[x2][y2] = target;
 341                         return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 342                 }
 343                 else if (target->operator==(*defender) && rand() % 2 == 0)
 344                 {
 345                         delete defender;
 346                         board[x][y] = NULL;
 347                         board[x2][y2] = target;
 348                         return MovementResult(MovementResult::KILLS, attackerType, defenderType);
 349                 }
 350                 else
 351                 {
 352                         delete target;
 353                         board[x][y] = NULL;
 354                         return MovementResult(MovementResult::DIES, attackerType, defenderType);
 355                 }
 356         }
 357         else
 358         {
 359                 return MovementResult(MovementResult::POSITION_FULL);
 360         }
 361         return MovementResult(MovementResult::OK);
 362 }
 363
 364
 365