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  1. import java.util.*;
  2. import java.io.*;
  3. import java.lang.*;
  4.  
  5. class Figure
  6. {
  7. 	String color;
  8.  
  9. 	protected Figure(String color) {
  10. 		this.color = color;
  11. 	}
  12. 	public String getColor() {
  13. 		return this.color;
  14. 	}
  15. }
  16. class Pawn extends Figure
  17. {
  18. 	public Pawn(String color) {
  19. 		super(color);
  20. 	}
  21. 	public String toString() {
  22. 		return color.charAt(0) + "P";
  23. 	}
  24. }
  25. class Queen extends Figure
  26. {
  27. 	public Queen(String color) {
  28. 		super(color);
  29. 	}
  30. 	public String toString() {
  31. 		return color.charAt(0) + "Q";
  32. 	}
  33. }
  34. class None extends Figure
  35. {
  36. 	public None() {
  37. 		super("None");
  38. 	}
  39. 	public String toString() {
  40. 		return "__";
  41. 	}
  42. }
  43. class BoardRow
  44. {
  45. 	List<Figure> row = new ArrayList<>();
  46.  
  47. 	public BoardRow() {
  48. 		for (int i = 0; i < 10; i++) {
  49. 			row.add(new None());
  50. 		}
  51. 	}
  52. 	public boolean setFigure(int n, Figure figure) {
  53. 		if (n < row.size()) {
  54. 			row.set(n, figure);
  55. 			return true;
  56. 		} else {
  57. 			return false;
  58. 		}
  59. 	}
  60. 	public String checkFigure(int n) {
  61. 		return "Figure at " + n + " position is " + row.get(n);
  62. 	}
  63. 	public Figure getFigure(int n) {
  64. 		return row.get(n);
  65. 	}
  66. 	public String toString() {
  67. 		String s = "";
  68. 		for(int n = 0; n < row.size(); n++) {
  69. 			s += "|" + row.get(n);
  70. 		}
  71. 		s = s + "|";
  72. 		return s;
  73. 	}
  74. }
  75. class Board
  76. {
  77. 	private String figuresOnTop;
  78. 	BoardRow r = new BoardRow();
  79. 	List<BoardRow> board = new ArrayList<>();
  80. 	public Board() {
  81. 		for (int i = 0; i < 10; i++) {
  82. 			board.add(new BoardRow());
  83. 		}
  84. 	}
  85. 	public boolean setFigure(Figure f, int x, int y) {
  86. 		if ((x < board.size()) && (y < board.size())) {
  87. 			board.get(y).setFigure(x, f);
  88. 			return true;
  89. 		} else {
  90. 			return false;
  91. 		}
  92. 	}
  93. 	public Figure getFigure(int x, int y) {
  94. 		return board.get(y).row.get(x);         // WTF
  95. 	}
  96. 	public int maxX() {
  97. 		return board.size() - 1;
  98. 	}
  99. 	public int maxY() {
  100. 		return r.row.size() - 1;
  101. 	}
  102. 	public void showBoard() {
  103. 		String columns[] = {"1 ", "2 ", "3 ", "4 ", "5 ", "6 ", "7 ", "8 ", "9 ", "10"};
  104. 		System.out.println("__|A |B |C |D |E |F |G |H |I |J |");
  105. 		for(int n = 0; n < board.size(); n++) {
  106. 			System.out.println(columns[n] + board.get(n));
  107. 		}
  108. 	}
  109. 	public void initBoard(String figuresOnTop) {
  110. 		if (figuresOnTop == "random") {
  111. 			Random randomize = new Random();
  112. 			int random = randomize.nextInt(2);
  113. 			if (random == 0) {
  114. 				figuresOnTop = "white";
  115. 			} else {
  116. 				figuresOnTop = "black";
  117. 			}
  118. 		}
  119. 		if (figuresOnTop == "white") {
  120. 			for(int i = 0; i < r.row.size(); i++) {
  121. 				setFigure(new Pawn("white"), i, 0);
  122. 				setFigure(new Pawn("white"), i, 2);
  123. 				setFigure(new Pawn("white"), i + 1, 1);
  124. 				setFigure(new Pawn("black"), i + 1, 7);
  125. 				setFigure(new Pawn("black"), i, 8);
  126. 				setFigure(new Pawn("black"), i+ 1, 9);
  127. 				i++;
  128. 			}
  129. 		}
  130. 		else if (figuresOnTop == "black") {
  131. 			for(int i = 0; i < r.row.size(); i++) {
  132. 				setFigure(new Pawn("black"), i, 0);
  133. 				setFigure(new Pawn("black"), i, 2);
  134. 				setFigure(new Pawn("black"), i + 1, 1);
  135. 				setFigure(new Pawn("white"), i + 1, 7);
  136. 				setFigure(new Pawn("white"), i, 8);
  137. 				setFigure(new Pawn("white"), i+ 1, 9);
  138. 				i++;
  139. 			}
  140. 		} else {
  141. 			System.out.println("Wrong command!");
  142. 		}
  143. 		this.figuresOnTop = figuresOnTop;
  144. 	}
  145. 	public String getFiguresOnTop() {
  146. 		return figuresOnTop;
  147. 	}
  148. }
  149. class Checkers
  150. {
  151. 	Board board;
  152. 	String player1;
  153. 	String player2;
  154. 	String currentTurn = "white";
  155. 	public Checkers(String player1, String player2, String figuresOnTop){
  156. 		board = new Board();
  157. 		board.initBoard(figuresOnTop);
  158. 		this.player1 = player1;
  159. 		this.player2 = player2;
  160. 	}
  161. 	public String getOppositeColor(String currentTurn) {
  162. 		return currentTurn.equals("black") ? "white" : "black";
  163. 	}
  164. 	private boolean possibleMove(int x1, int y1, int x2, int y2) {
  165. 		if (((x2 == x1+1) && (y2 == y1+1)) ||
  166.        		((x2 == x1+1) && (y2 == y1-1)) ||
  167.        		((x2 == x1-1) && (y2 == y1+1)) ||
  168.        		((x2 == x1-1) && (y2 == y1-1))) {
  169. 			return true;
  170. 		} else {
  171. 			return false;
  172. 		}
  173. 	}
  174. 	private boolean possibleMoveOver(int x1, int y1, int x2, int y2) {
  175. 		boolean result = false;
  176. 		if ((x2 == x1 + 2) && (y2 == y1 + 2)) {
  177. 			Figure f = board.getFigure(x1+1, y1+1);
  178. 			if ((f instanceof Pawn || f instanceof Queen) &&
  179. 					(f.getColor().equals(getOppositeColor(currentTurn)))) {
  180. 				result = true;
  181. 			}
  182. 		} else if ((x2 == x1 + 2) && (y2 == y1 - 2)) {
  183. 			Figure f = board.getFigure(x1+1, y1-1);
  184. 			if ((f instanceof Pawn || f instanceof Queen) && 
  185. 					(f.getColor().equals(getOppositeColor(currentTurn)))) {
  186. 				result = true;
  187. 			}
  188. 		} else if ((x2 == x1 - 2) && (y2 == y1 + 2)) {
  189. 			Figure f = board.getFigure(x1-1, y1+1);
  190. 			if ((f instanceof Pawn || f instanceof Queen) && 
  191. 					(f.getColor().equals(getOppositeColor(currentTurn)))) {
  192. 				result = true;
  193. 			}
  194. 		} else if ((x2 == x1 - 2) && (y2 == y1 - 2)) {
  195. 			Figure f = board.getFigure(x1-1, y1-1);
  196. 			if ((f instanceof Pawn || f instanceof Queen) && 
  197. 					(f.getColor().equals(getOppositeColor(currentTurn)))) {
  198. 				result = true;
  199. 			}
  200. 		}
  201. 		return result;
  202. 	}
  203. 	private boolean isOnBoard(int x, int y) {
  204. 		if ((x >= 0) && (y >= 0) && (x <= board.maxX()) && (y <= board.maxY())) {
  205. 			return true;
  206. 		} else {
  207. 			return false;
  208. 		}
  209. 	}
  210. 	private boolean isEmpty(int x, int y) {
  211. 		if (board.getFigure(x, y) instanceof None) {
  212. 			return true;
  213. 		} else {
  214. 			return false;
  215. 		}
  216. 	}
  217. 	private boolean ownFigure(int x, int y) {
  218. 		Figure f = board.getFigure(x, y);
  219. 		if (f.getColor().equals(currentTurn)) {
  220. 			return true;
  221. 		} else {
  222. 			return false;
  223. 		}
  224. 	}
  225. 	public boolean move(int x1, int y1, int x2, int y2) {
  226. 		if ((possibleMove(x1, y1, x2, y2) || possibleMoveOver(x1, y1, x2, y2)) &&
  227. 				isOnBoard(x2, y2) &&
  228. 				isEmpty(x2, y2) &&
  229. 				ownFigure(x1, y1)) {
  230. 			//movement
  231. 			Figure start = board.getFigure(x1, y1);
  232. 			Figure end = board.getFigure(x2, y2);
  233. 			board.setFigure(start, x2, y2);
  234. 			System.out.println(start);
  235. 			return true;
  236. 		} else {
  237. 			return false;
  238. 		}
  239. 	}
  240. 	public void showBoard() {
  241. 		board.showBoard();
  242. 	}
  243. }
  244. class App
  245. {
  246. 	public static void main(String[] args) {
  247. 		Checkers checkers = new Checkers("play1","play2","white");
  248. 		checkers.showBoard();
  249. 		checkers.move(0, 2, 1, 3);
  250. 		checkers.board.setFigure(new Queen("black"), 0, 9);
  251. 		checkers.showBoard();
  252.  
  253. 	}
  254. }
Success #stdin #stdout 0.17s 2841600KB
comments (?)
stdin
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Standard input is empty
stdout
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__|A |B |C |D |E |F |G |H |I |J |
1 |wP|__|wP|__|wP|__|wP|__|wP|__|
2 |__|wP|__|wP|__|wP|__|wP|__|wP|
3 |wP|__|wP|__|wP|__|wP|__|wP|__|
4 |__|__|__|__|__|__|__|__|__|__|
5 |__|__|__|__|__|__|__|__|__|__|
6 |__|__|__|__|__|__|__|__|__|__|
7 |__|__|__|__|__|__|__|__|__|__|
8 |__|bP|__|bP|__|bP|__|bP|__|bP|
9 |bP|__|bP|__|bP|__|bP|__|bP|__|
10|__|bP|__|bP|__|bP|__|bP|__|bP|
wP
__|A |B |C |D |E |F |G |H |I |J |
1 |wP|__|wP|__|wP|__|wP|__|wP|__|
2 |__|wP|__|wP|__|wP|__|wP|__|wP|
3 |wP|__|wP|__|wP|__|wP|__|wP|__|
4 |__|wP|__|__|__|__|__|__|__|__|
5 |__|__|__|__|__|__|__|__|__|__|
6 |__|__|__|__|__|__|__|__|__|__|
7 |__|__|__|__|__|__|__|__|__|__|
8 |__|bP|__|bP|__|bP|__|bP|__|bP|
9 |bP|__|bP|__|bP|__|bP|__|bP|__|
10|bQ|bP|__|bP|__|bP|__|bP|__|bP|
https://ideone.com/kQRC9O
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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