Following game has been created as a project work for the course “Tik-76.030 Basic Course in Programming Y1” in Helsinki University of Technology. Game allows human player to challenge computer. During setting-up phase built-in logic assures that ships are not touching each other. When ship is sunk all squares around it are marked and neither human player nor computer can choose those squares to shoot anymore. Computer AI is rudimentary. It shoots randomly but never at the same square twice.
Game.java:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | ///////////////////////////////////////////////////////////////////////////////// Naval Battle - Game class// version 1.0, build 29//// Copyright 2000 Juri Stotski///////////////////////////////////////////////////////////////////////////////public class Game { public static boolean hit = false; // determines if ship was shot or not public static boolean end = false; // determines the end of a game public static void main(String args[]) { Player human = new Player("Human"); // sets size of the game field and creates human player object Player robot = new Player("Robot"); // creates computer player object human.setShipHuman(4, 1); // builds human ships human.setShipHuman(3, 2); human.setShipHuman(2, 3); human.setShipHuman(1, 4); robot.setShipRobot(4, 1); // builds computer ships robot.setShipRobot(3, 2); robot.setShipRobot(2, 3); robot.setShipRobot(1, 4); do { // executes game do { // "human" player move if (robot.alive() && human.alive()) hit = robot.moveHuman(); } while (hit == true && robot.alive() && human.alive()); // will continue until first shot into an empty field or the end of the game do { // "computer" player move if (robot.alive() && human.alive()) hit = human.moveRobot(); } while (hit == true && robot.alive() && human.alive()); // will continue until first shot into an empty field or the end of the game } while (robot.alive() && human.alive()); // when all the ships of either of players are sank game ends if (!robot.alive()) human.end(); if (!human.alive()) robot.end(); }} |
Player.java:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 | ///////////////////////////////////////////////////////////////////////////////// Naval Battle - Player class// version 1.0, build 29//// Copyright 2000 Juri Stotski///////////////////////////////////////////////////////////////////////////////class Player { public static final String ALPHA = "ABCDEFGHIJKLMNOPQRST"; // english alphabet from A to T, here can be also multi-national alphabets if they are supported by JAVA public static final String SPACE = "YES"; // screen buffer spacing, corrects screen fonts that may be too narrow, can have "YES and "NO" values public static final int SHIPS = 20; // number of all points under ships: 1x4 + 2x3 + 3x2 + 4x1 public static final int ROUND = 120; // number of all points under ships and around them public static final char lineX = '-'; // here can be pseudo-graphics for better UI look under Windows OS public static final char lineY = '|'; public static final char lineCornerUpL = '+'; public static final char lineCornerUpR = '+'; public static final char lineCornerDoL = '+'; public static final char lineCornerDoR = '+'; public static final char shipShips = 'S'; // how ships will look like on screen during construction and battle public static final char shipRound = '*'; public static final char shipShoot = 'X'; public static final char shipEmpty = ' '; public static int boardSize = 0; // the size of the game board public static char[][] boardBuff; // screen buffer with all screen data public static String errorLine = ""; // error message status bar public static String orderLine = ""; // orders bar private int[][] ships; // points with ships private int[][] round; // points with ships and around ships private int[][] shoot; // shot points during the game private int shift = 0; // "computer" relative to "human" game board shift, helps determine who-is-who and to update "boardBuff" array properly public Player(String name) { // creates player objects if (name.equals("Human")) { this.setBoardSize(9, 15); // asks user for the game board size, 9 is the minimun possible value, because at 8 there is no enough space on the board to build all the ships this.setBoardBuff(); // creates screen buffer } else shift = boardSize + 5; this.ships = new int[SHIPS][3]; // creates all arrays needed for ships construction and game this.round = new int[ROUND][3]; this.shoot = new int[boardSize][boardSize]; } public static void setBoardSize(int begin, int end) { // sets game board size in the beginning of the game errorLine = "No errors"; orderLine = "Set battle field size" + " [" + begin + "-" + end + "]: "; do { for (int i = 0; i < 50; i++) System.out.print("\n"); // clears screen System.out.print("NAVAL BATTLE\n"); System.out.print("COPYRIGHT BY JURI STOTSKI, 2000\n\n"); System.out.print("ERRORS: " + errorLine + "\n"); System.out.print("ORDERS: " + orderLine); boardSize = Read.integer(); // uses rewrited Lue.java code for better look and performance errorLine = "You entered wrong data, try again..."; } while (boardSize < begin || boardSize > end); } public static void setBoardBuff() { // creates screen buffer array that contains all the data about ships that can be shown to the user boardBuff = new char[boardSize * 2 + 8][boardSize + 3]; for (int i = 2; i < (2 + boardSize); i++) boardBuff[i][0] = ALPHA.charAt(i - 2); // horizontal and vertical lines of alphabet characters for (int j = 2; j < (2 + boardSize); j++) boardBuff[0][j] = ALPHA.charAt(j - 2); for (int i = 2; i < (2 + boardSize); i++) boardBuff[i][1] = lineX; // horizontal and vertical lines of borders for (int i = 2; i < (2 + boardSize); i++) boardBuff[i][2 + boardSize] = lineX; for (int j = 2; j < (2 + boardSize); j++) boardBuff[1][j] = lineY; for (int j = 2; j < (2 + boardSize); j++) boardBuff[2 + boardSize][j] = lineY; boardBuff[1][1] = lineCornerUpL; // corners, can be easily upgraded to use pseudo-graphics under Windows OS boardBuff[2 + boardSize][1] = lineCornerUpR; boardBuff[1][2 + boardSize] = lineCornerDoL; boardBuff[2 + boardSize][2 + boardSize] = lineCornerDoR; for (int i = 0; i < (3 + boardSize); i++) { // creates second ("computer") field by coping first for (int j = 0; j < (3 + boardSize); j++) { boardBuff[i + 5 + boardSize][j] = boardBuff[i][j]; } } } public void setShipHuman(int size, int quantity) { // creates "human" ships String tempCoord; // temp variable for user input boolean ok; for (int i = 0; i < quantity; i++) { errorLine = "No errors"; orderLine = "Set " + buildShipName(size) + " " + (i + 1) + ", size " + size + " on the field [" + buildShipExample(size) + "]: "; do { ok = true; this.putBoardBuff(); tempCoord = Read.string().toUpperCase(); // can process mixed case strings if (ok == true) ok = buildCheckFormat(tempCoord); // checks the quality of the input coordinates if (ok == true) ok = buildCheckBended(tempCoord); // checks if coordinates represent bended ship if (ok == true) ok = buildCheckLength(tempCoord, size); // checks if coordinates represent ship that is longer or shorter than allowed "size" if (ok == true) ok = buildCheckRounds(tempCoord, size); // checks if coordinates represent ship that cannot be build on this place if (ok == true) { buildAddRound(tempCoord, size); // adds denied points to "round" variable array buildAddShips(tempCoord, size); // adds ship to "ships" variable array } else { errorLine = "Your coordinates are wrong, try again..."; } } while (!ok); if (size == 1 && i == 3) buildShipClear(); } } public void setShipRobot(int size, int quantity) { // automatic routine for "computer" ships construction, obeys all the rules int X1 = 0; // "X1" and "Y1" are random numbers, "X2" and "Y2" depend on "size" and "dir" variables' values int X2 = 0; int Y1 = 0; int Y2 = 0; int dir = 0; // random number, can have values from 0 to 3, which mean "up", "down", "right" and "left" directions of ship construction boolean ok; boolean ob; char[] tempArray = new char[5]; // simulates human player's input style [AA-AB] so the same check methods can be used for (int i = 0; i < quantity; i++) { do { ok = true; X1 = (int) (boardSize * Math.random()); // gets random number from "0" to "boardSize - 1" Y1 = (int) (boardSize * Math.random()); // gets random number from "0" to "boardSize - 1" do { ob = true; dir = (int) (4 * Math.random()); if (dir == 0) { X2 = X1; Y2 = Y1 - size - 1; } if (dir == 1) { Y2 = Y1; X2 = X1 + size - 1; } if (dir == 2) { X2 = X1; Y2 = Y1 + size - 1; } if (dir == 3) { Y2 = Y1; X2 = X1 - size - 1; } if (X2 < 0 || X2 > (boardSize - 1)) ob = false; if (Y2 < 0 || Y2 > (boardSize - 1)) ob = false; } while (!ob); tempArray[0] = ALPHA.charAt(X1); tempArray[1] = ALPHA.charAt(Y1); tempArray[2] = '-'; tempArray[3] = ALPHA.charAt(X2); tempArray[4] = ALPHA.charAt(Y2); String tempCoord = new String(tempArray); if (ok == true) ok = buildCheckFormat(tempCoord); // a couple of simple rules that will not let user input data that looks bad if (ok == true) ok = buildCheckBended(tempCoord); // checks if coordinates represent bended ship if (ok == true) ok = buildCheckLength(tempCoord, size); // checks if coordinates represent ship that is longer or shorter than allowed "size" if (ok == true) ok = buildCheckRounds(tempCoord, size); // checks if coordinates represent ship that cannot be build on this place if (ok == true) { buildAddRound(tempCoord, size); // adds denied points to "round" variable array buildAddShips(tempCoord, size); // adds ship to "ships" variable array } } while (!ok); } } public String buildShipName(int size) { // returns ship's name based on its size if (size == 1) return "submarine"; if (size == 2) return "cruiser"; if (size == 3) return "destroyer"; return "battleship"; } public String buildShipExample(int size) { // interractive help, supports multi-national ALPHAs if (size == 1) return "" + ALPHA.charAt(0) + ALPHA.charAt(0) + "-" + ALPHA.charAt(0) + ALPHA.charAt(0); // "" + at the beginning needed to avoid interpretation of ALPHA.charAt(0) as a numeric (0-255) value if (size == 2) return "" + ALPHA.charAt(0) + ALPHA.charAt(0) + "-" + ALPHA.charAt(0) + ALPHA.charAt(1); if (size == 3) return "" + ALPHA.charAt(0) + ALPHA.charAt(0) + "-" + ALPHA.charAt(0) + ALPHA.charAt(2); return "" + ALPHA.charAt(0) + ALPHA.charAt(0) + "-" + ALPHA.charAt(0) + ALPHA.charAt(3); } public boolean buildCheckFormat(String tempCoord) { // a couple of simple rules that will not let user input data that looks bad if (tempCoord.length() != 5) return false; if (ALPHA.indexOf(tempCoord.charAt(0)) == -1) return false; if (ALPHA.indexOf(tempCoord.charAt(1)) == -1) return false; if (tempCoord.charAt(2) != '-') return false; if (ALPHA.indexOf(tempCoord.charAt(3)) == -1) return false; if (ALPHA.indexOf(tempCoord.charAt(4)) == -1) return false; if (ALPHA.indexOf(tempCoord.charAt(0)) >= boardSize) return false; if (ALPHA.indexOf(tempCoord.charAt(1)) >= boardSize) return false; if (ALPHA.indexOf(tempCoord.charAt(3)) >= boardSize) return false; if (ALPHA.indexOf(tempCoord.charAt(4)) >= boardSize) return false; return true; } public boolean buildCheckBended(String tempCoord) { // checks if coordinates represent bended ship if (tempCoord.charAt(0) != tempCoord.charAt(3) && tempCoord.charAt(1) != tempCoord.charAt(4)) return false; return true; } public boolean buildCheckLength(String tempCoord, int size) { // checks if coordinates represent ship that is longer or shorter than allowed "size" int differenceX = Math.abs(ALPHA.indexOf(tempCoord.charAt(0)) - ALPHA.indexOf(tempCoord.charAt(3))) + 1; int differenceY = Math.abs(ALPHA.indexOf(tempCoord.charAt(1)) - ALPHA.indexOf(tempCoord.charAt(4))) + 1; if (differenceX == 1 && differenceY == size) return true; if (differenceX == size && differenceY == 1) return true; return false; } public boolean buildCheckRounds(String tempCoord, int size) { // checks if coordinates represent ship that cannot be build on this place int[][] tempShips = buildGetTempShips(tempCoord, new int[size][2]); for (int x = 0; x < size; x++) { for (int i = 0; i < ROUND; i++) { if (this.round[i][0] == tempShips[x][0] && this.round[i][1] == tempShips[x][1]) return false; } } return true; } public void buildAddShips(String tempCoord, int size) { int[][] tempShips = buildGetTempShips(tempCoord, new int[size][2]); for (int i = 0; i < size; i++) { a: for (int j = 0; j < SHIPS; j++) { if (ships[j][0] == 0) { this.ships[j][0] = tempShips[i][0]; this.ships[j][1] = tempShips[i][1]; break a; } } } if (shift == 0) { // boardBuff update for (int i = 0; i < SHIPS; i++) { if (this.ships[i][0] != 0) { boardBuff[this.ships[i][0] + 1 + shift][this.ships[i][1] + 1] = shipShips; } } } } public void buildAddRound(String tempCoord, int size) { int[][] tempShips = buildGetTempShips(tempCoord, new int[size][2]); for (int j = (tempShips[0][1] - 1); j < (tempShips[size - 1][1] + 2); j++) { for (int i = (tempShips[0][0] - 1); i < (tempShips[size - 1][0] + 2); i++) { a: for (int k = 0; k < ROUND; k++) { if (round[k][0] == 0) { if (i > boardSize || i == 0) this.round[k][0] = -1; else this.round[k][0] = i; if (j > boardSize || j == 0) this.round[k][1] = -1; else this.round[k][1] = j; if (this.round[k][0] == -1) this.round[k][1] = -1; // helps to keep uniformity, if one coordinate marked as "-1" (out of field) second coordinate will also get value "-1" if (this.round[k][1] == -1) this.round[k][0] = -1; break a; } } } } if (shift == 0) { // boardBuff update for (int i = 0; i < ROUND; i++) { if (this.round[i][0] != 0) { if (this.round[i][0] != -1 && this.round[i][1] != -1) { boardBuff[this.round[i][0] + 1 + shift][this.round[i][1] + 1] = shipRound; } } } } } public int[][] buildGetTempShips(String tempCoord, int[][] tempShips) { int directionX = 1; int directionY = 1; int X = 0; int Y = 0; int X1 = ALPHA.indexOf(tempCoord.charAt(0)); int X2 = ALPHA.indexOf(tempCoord.charAt(3)); int Y1 = ALPHA.indexOf(tempCoord.charAt(1)); int Y2 = ALPHA.indexOf(tempCoord.charAt(4)); if (X2 > X1) { X = X1; } else if (X2 < X1) { X = X2; } else if (X2 == X1) { X = X1; directionX = 0; } if (Y2 > Y1) { Y = Y1; } else if (Y2 < Y1) { Y = Y2; } else if (Y2 == Y1) { Y = Y1; directionY = 0; } for (int i = 0; i < tempShips.length; i++) { tempShips[i][0] = (X + 1 + i * directionX); tempShips[i][1] = (Y + 1 + i * directionY); } return tempShips; } public void buildShipClear() { // clears "human" field before battle for (int j = 0; j < boardSize; j++) { // clears field for (int i = 0; i < boardSize; i++) { boardBuff[i + 2 + shift][j + 2] = shipEmpty; } } for (int i = 0; i < SHIPS; i++) { // adds ships to field boardBuff[this.ships[i][0] + 1 + shift][this.ships[i][1] + 1] = shipShips; } } public boolean moveHuman() { String tempCoord; boolean ok; errorLine = "No errors"; orderLine = "Enter coordinates where you want to shoot [" + ALPHA.charAt(0) + ALPHA.charAt(2) + "]: "; do { ok = true; this.putBoardBuff(); tempCoord = Read.string().toUpperCase(); // can process mixed case strings if (ok == true) ok = moveCheckCoord(tempCoord); // checks the quality of the input coordinates if (ok == true) ok = moveCheckShoot(tempCoord); // checks if the input coordinates were already entered earlier if (ok == true) ok = moveCheckRound(tempCoord); // checks if the input coordinates point to sank ship or its surroundings if (ok == true) { moveAddShoot(tempCoord); // adds point to "shoot" array if square that contains ship has been shot boolean shot = moveAddShips(tempCoord); // marks point in "ships" array as shot if it's shot moveAddRound(); // updates "round" array to absorb changes that happend in "ships" array moveUpdateBoardBuff(); if (shot) return true; else return false; } else { errorLine = "Your coordinates are wrong, try again..."; } } while (!ok); return false; } public boolean moveRobot() { // random point generator, avoids shot points and points around sank ships int X = 0; // "X" and "Y" are random numbers int Y = 0; boolean ok; char[] tempArray = new char[2]; // simulates human player's input style [AA] so the same check methods can be used do { ok = true; X = (int) (boardSize * Math.random()); // gets random number from "0" to "boardSize - 1" Y = (int) (boardSize * Math.random()); // gets random number from "0" to "boardSize - 1" tempArray[0] = ALPHA.charAt(X); tempArray[1] = ALPHA.charAt(Y); String tempCoord = new String(tempArray); if (ok == true) ok = moveCheckCoord(tempCoord); // checks the quality of the input coordinates if (ok == true) ok = moveCheckShoot(tempCoord); // checks if the input coordinates were already entered earlier if (ok == true) ok = moveCheckRound(tempCoord); // checks if the input coordinates point to sank ship or its surroundings if (ok == true) { moveAddShoot(tempCoord); // adds point to "shoot" array if square that contains ship has been shot boolean shot = moveAddShips(tempCoord); // marks point in "ships" array as shot if it's shot moveAddRound(); // updates "round" array to absorb changes that happend in "ships" array moveUpdateBoardBuff(); if (shot) return true; else return false; } } while (!ok); return false; } public boolean moveCheckCoord(String tempCoord) { // checks the quality of the input coordinates if (tempCoord.length() != 2) return false; if (ALPHA.indexOf(tempCoord.charAt(0)) == -1) return false; if (ALPHA.indexOf(tempCoord.charAt(1)) == -1) return false; if (ALPHA.indexOf(tempCoord.charAt(0)) > (boardSize + 1)) return false; if (ALPHA.indexOf(tempCoord.charAt(1)) > (boardSize + 1)) return false; return true; } public boolean moveCheckShoot(String tempCoord) { // checks if the input coordinates were already entered earlier int X = ALPHA.indexOf(tempCoord.charAt(0)); int Y = ALPHA.indexOf(tempCoord.charAt(1)); if (this.shoot[X][Y] == 1) return false; return true; } // checks if the input coordinates point to sank ship or its surroundings public boolean moveCheckRound(String tempCoord) { int X = ALPHA.indexOf(tempCoord.charAt(0)) + 1; // "+ 1" is here because in "ships" and "round" matrices coordinates begin with 1, not with 0 int Y = ALPHA.indexOf(tempCoord.charAt(1)) + 1; for (int i = 0; i < ROUND; i++) { if (this.round[i][0] == X && this.round[i][1] == Y && this.round[i][2] == 1) return false; } return true; } public void moveAddShoot(String tempCoord) { // adds point to "shoot" array int X = ALPHA.indexOf(tempCoord.charAt(0)); int Y = ALPHA.indexOf(tempCoord.charAt(1)); this.shoot[X][Y] = 1; } public boolean moveAddShips(String tempCoord) { // marks point in "ships" array as shot if it's shot int X = ALPHA.indexOf(tempCoord.charAt(0)) + 1; // "+ 1" is here because in ships and round matrices coordinates begin with 1, not with 0 int Y = ALPHA.indexOf(tempCoord.charAt(1)) + 1; for (int i = 0; i < SHIPS; i++) { if (ships[i][0] == X && ships[i][1] == Y) { ships[i][2] = 1; return true; } } return false; } public void moveAddRound() { // updates "round" array to absorb changes that happend in "ships" array if (this.ships[0][2] == 1 && // if ship is sank all places around it are marked as sank ship surroundings, shooting there is useless this.ships[1][2] == 1 && this.ships[2][2] == 1 && this.ships[3][2] == 1) for (int i = 0; i < 18; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[4][2] == 1 && this.ships[5][2] == 1 && this.ships[6][2] == 1) for (int i = 18; i < 33; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[7][2] == 1 && this.ships[8][2] == 1 && this.ships[9][2] == 1) for (int i = 33; i < 48; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[10][2] == 1 && this.ships[11][2] == 1) for (int i = 48; i < 60; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[12][2] == 1 && this.ships[13][2] == 1) for (int i = 60; i < 72; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[14][2] == 1 && this.ships[15][2] == 1) for (int i = 72; i < 84; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[16][2] == 1) for (int i = 84; i < 93; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[17][2] == 1) for (int i = 93; i < 102; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[18][2] == 1) for (int i = 102; i < 111; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; if (this.ships[19][2] == 1) for (int i = 111; i < 120; i++) if (this.round[i][0] == -1) this.round[i][2] = -1; else this.round[i][2] = 1; } public boolean alive() { for (int i = 0; i < SHIPS; i++) if (this.ships[i][2] == 0) return true; return false; } public void end () { for (int i = 0; i < 50; i++) System.out.println(); // clears screen if (shift == 0) { System.out.println("You won the battle against evil computer forces..."); } else System.out.println("Evil computer forces were too strong for you, brother. RIP..."); } public void moveUpdateBoardBuff() { for (int j = 0; j < boardSize; j++) { // performs rendering at three layers: first - shot points, second - points around sank ships, third - sank and wounded ships by themselves for (int i = 0; i < boardSize; i++) { if (this.shoot[i][j] == 1) boardBuff[i + 2 + shift][j + 2] = shipRound; } } for (int i = 0; i < ROUND; i++) { if (this.round[i][2] == 1) boardBuff[this.round[i][0] + 1 + shift][this.round[i][1] + 1] = shipRound; } for (int i = 0; i < SHIPS; i++) { if (this.ships[i][2] == 1) boardBuff[this.ships[i][0] + 1 + shift][this.ships[i][1] + 1] = shipShoot; } } public void putBoardBuff() { // prints game board, current errors and orders bars for (int i = 0; i < 50; i++) System.out.println(); // clears screen System.out.print("NAVAL BATTLE\n"); System.out.print("COPYRIGHT BY JURI STOTSKI, 2000\n\n"); for (int j = 0; j < (boardSize + 3); j++) { for (int i = 0; i < (boardSize * 2 + 8); i++) { if (boardBuff[i][j] == 0) { // prints space if field is empty System.out.print(" "); } else System.out.print(boardBuff[i][j]); if (SPACE.equals("YES")) { // makes spacing if (i == 1 && j == 1) { System.out.print(lineX); continue; } if (i == 1 && j == (boardSize + 2)) { System.out.print(lineX); continue; } if (i == (boardSize + 6) && j == 1) { System.out.print(lineX); continue; } if (i == (boardSize + 6) && j == (boardSize + 2)) { System.out.print(lineX); continue; } if (boardBuff[i][j] == lineX) { System.out.print(lineX); } else {System.out.print(" ");} } } System.out.print("\n"); } System.out.print("\nERRORS: " + errorLine); System.out.print("\nORDERS: " + orderLine); }} |
Read.java:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | ///////////////////////////////////////////////////////////////////////////////// Naval Battle - Read class// version 1.0, build 29//// Copyright 2000 Juri Stotski///////////////////////////////////////////////////////////////////////////////import java.io.*;public class Read { public static BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in)); public static String string() { String arvo = null; try { arvo = stdin.readLine(); } catch (Exception e) { return "Fail"; } // if (arvo == "exit") System.exit(1); return arvo; } public static int integer() { int arvo = -1; try { arvo = Integer.parseInt(stdin.readLine()); } catch (Exception e) { return 3141592; } return arvo; }} |
Test run:
