Add files via upload

2025-12-27 14:49:04 +01:00 · 2025-01-12 22:42:08 +00:00
parent 6a0607ff0d
commit 55c3acf98e
10 changed files with 9918 additions and 13 deletions
--- a/Java/Board.java
+++ b/Java/Board.java
@@ -0,0 +1,121 @@
+
+import java.math.BigInteger;
+
+public class Board 
+{
+    public static BigInteger[] bitboard_array_global = new BigInteger[12];
+    public static boolean is_white_global = true;
+    public static boolean[] castle_rights_global = new boolean[4];
+    public static int ep;
+
+    static final BigInteger BP_STARTING_POSITIONS = new BigInteger("65280");
+    static final BigInteger WP_STARTING_POSITIONS = new BigInteger("71776119061217280");
+    static final BigInteger BK_STARTING_POSITION = new BigInteger("16");
+    static final BigInteger WK_STARTING_POSITION = new BigInteger("1152921504606846976");
+    static final BigInteger BN_STARTING_POSITIONS = new BigInteger("66");
+    static final BigInteger WN_STARTING_POSITIONS = new BigInteger("4755801206503243776");
+    static final BigInteger WR_STARTING_POSITIONS = new BigInteger("9295429630892703744");
+    static final BigInteger BR_STARTING_POSITIONS = new BigInteger("129");
+    static final BigInteger BB_STARTING_POSITIONS = new BigInteger("36");
+    static final BigInteger WB_STARTING_POSITIONS = new BigInteger("2594073385365405696");
+    static final BigInteger WQ_STARTING_POSITION = new BigInteger("576460752303423488");
+    static final BigInteger BQ_STARTING_POSITION = new BigInteger("8");
+
+
+    public static void SetTrickyPosition() {
+
+        ep = GenConst.NO_SQUARE;
+        is_white_global = true;
+        castle_rights_global[0] = true;
+        castle_rights_global[1] = true;
+        castle_rights_global[2] = true;
+        castle_rights_global[3] = true;
+    
+        bitboard_array_global[GenConst.WP] = new BigInteger("65020788473856000");
+        bitboard_array_global[GenConst.WN] = new BigInteger("4398314946560");
+        bitboard_array_global[GenConst.WB] = new BigInteger("6755399441055744");
+        bitboard_array_global[GenConst.WR] = new BigInteger("9295429630892703744");
+        bitboard_array_global[GenConst.WQ] = new BigInteger("35184372088832");
+        bitboard_array_global[GenConst.WK] = new BigInteger("1152921504606846976");
+        bitboard_array_global[GenConst.BP] = new BigInteger("140746083544320");
+        bitboard_array_global[GenConst.BN] = new BigInteger("2228224");
+        bitboard_array_global[GenConst.BB] = new BigInteger("81920");
+        bitboard_array_global[GenConst.BR] = new BigInteger("129");
+        bitboard_array_global[GenConst.BQ] = new BigInteger("4096");
+        bitboard_array_global[GenConst.BK] = new BigInteger("16");
+    }
+
+    public static void SetStartingPosition() {
+
+        ep = GenConst.NO_SQUARE;
+        is_white_global = true;
+        castle_rights_global[0] = true;
+        castle_rights_global[1] = true;
+        castle_rights_global[2] = true;
+        castle_rights_global[3] = true;
+    
+        bitboard_array_global[GenConst.WP] = WP_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.WN] = WN_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.WB] = WB_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.WR] = WR_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.WQ] = WQ_STARTING_POSITION;
+        bitboard_array_global[GenConst.WK] = WK_STARTING_POSITION;
+        bitboard_array_global[GenConst.BP] = BP_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.BN] = BN_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.BB] = BB_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.BR] = BR_STARTING_POSITIONS;
+        bitboard_array_global[GenConst.BQ] = BQ_STARTING_POSITION;
+        bitboard_array_global[GenConst.BK] = BK_STARTING_POSITION;
+    }
+
+    static final char[] PieceNames = {'P', 'N', 'B', 'R', 'Q', 'K', 'P', 'N', 'B', 'R', 'Q', 'K', '_'};
+    static final char[] PieceColours = {'W', 'W', 'W', 'W', 'W', 'W', 'B', 'B', 'B', 'B', 'B', 'B', '_'};
+
+static final int EMPTY = 12;
+
+    static boolean IsOccupied(BigInteger bitboard, int square)  {
+        return !bitboard.and(MoveConstants.SQUARE_BBS[square]).equals(BigInteger.ZERO);
+    }
+    
+    static int GetOccupiedIndex(int square) {
+        for (int i = 0; i < 12; i++) {
+            if (IsOccupied(bitboard_array_global[i], square)) {
+                return i;
+            }
+        }
+        return EMPTY;
+    }
+
+    static int[] fillBoardArray() {
+        int[] boardArray = new int[64];
+        for (int i = 0; i < 64; i++) {
+            boardArray[i] = GetOccupiedIndex(i);
+        }
+        return boardArray;
+    }
+
+    public static void PrintBoard() {
+        System.out.println("Board:");
+    
+        int[] boardArray = fillBoardArray();
+    
+        for (int rank = 0; rank < 8; rank++) {
+            System.out.print("   ");
+            
+            for (int file = 0; file < 8; file++) {
+                int square = (rank * 8) + file;
+                System.out.printf("%c%c ", PieceColours[boardArray[square]], PieceNames[boardArray[square]]);
+            }
+            
+            System.out.println();
+        }
+        System.out.println();
+        
+        System.out.printf("White to play: %b\n", is_white_global);
+        System.out.printf("Castle: %b %b %b %b\n", castle_rights_global[0], castle_rights_global[1], castle_rights_global[2], castle_rights_global[3]);
+        System.out.printf("ep: %d\n", ep);
+        System.out.println();
+        System.out.println();
+    }
+
+}