-

chess/chess_64.py

@@ -1,5 +1,5 @@
+import os
 # region Constants
-
 # White Constants
 W_KIN, W_QUE, W_BIS, W_NHT, W_ROO, W_PAW = range(6)
 # Black Constans
@@ -22,6 +22,21 @@ A3, B3, C3, D3, E3, F3, G3, H3 = range(16, 24)
 A2, B2, C2, D2, E2, F2, G2, H2 = range(8, 16)
 A1, B1, C1, D1, E1, F1, G1, H1 = range(8)
 
+# Convert Piece to number
+PCE_TO_NUM = {"K":0, "Q":1, "B":2, "N":3, "R":4, "P":5}
+
+# Convert Field to index
+STR_TO_SQ = {}
+files = "ABCDEFGH" # Oder "abcdefgh" je nach UCI Standard
+ranks = "12345678"
+
+for r_idx, r in enumerate(ranks):
+    for f_idx, f in enumerate(files):
+        # Berechne Index (Little Endian: A1=0, B1=1 ... H8=63)
+        sq = r_idx * 8 + f_idx 
+        key = f + r # z.B. "A1"
+        STR_TO_SQ[key] = sq
+
 # Move Flags
 QUIET = 0 
 DOUBLE_PAWN_PUSH = 1 
@@ -57,6 +72,15 @@ RAYS_S  = [0] * 64
 RAYS_SW = [0] * 64
 RAYS_W  = [0] * 64
 RAYS_NW = [0] * 64
+
+clear = lambda: os.system('clear')
+class COL():
+    def __init__(self) -> None:
+        self.W = "\033[97m"
+        self.B = "\033[30m"
+        self.BG_W = "\033[47m"
+        self.BW_B = "\033[40m"
+
 # endregion
 
 class Bitboard():
@@ -68,6 +92,7 @@ class Bitboard():
                           0, 0, 0, 0, 0, 0]
         
         self.side_to_move = WHITE
+        self.playing = True
 
         self.bitboards[W_KIN] = 1 << E1
         self.bitboards[W_QUE] = 1 << D1
@@ -344,6 +369,7 @@ class Bitboard():
                     moves.append(to_sq | (bis_sq << 6) | ((bis + turn_offset) << 12) | (no_piece << 16) | quiet << 20)
             # endregion
         # endregion Bishop Moves
+        return captures, moves
 
 
 
@@ -373,10 +399,40 @@ class Bitboard():
             self.bitboards[captured] ^= (1 << end)
             self.all_pieces[turn ^ 1] ^= (1 << end)
 
+        self.move_list.append(move)
+        
         self.side_to_move ^= 1 # Seite Wechseln
 
+    def encode_and_make_move(self, move_str: str):
+        piece = move_str[0]
+        start = move_str[1:3]
+        end = move_str[3:5]
+
+        piece_int = (PCE_TO_NUM[piece.upper()] + 6) if self.side_to_move else PCE_TO_NUM[piece.upper()]
+        start_int  = STR_TO_SQ[start.upper()]
+        end_int = STR_TO_SQ[end.upper()]
+
+        move_input = end_int | start_int << 6 | piece_int << 12
+
+        captures, moves = self.get_all_moves()
+
+        for move in captures:
+            if (move & 0xFFFF) == (move_input & 0xFFFF):
+                self.make_move(move)
+                return True
+
+        for move in moves:
+            if (move & 0xFFFF) == (move_input & 0xFFFF):
+                self.make_move(move)
+                return True
+        return False
+
     def print_board(self):
-        board = [" ."] * 64
+        board = ["--"] * 64
+        if  self.move_list:
+            move = self.move_list[-1]
+            last_sq = (move >> 6) & 0x3F
+            board[last_sq] = "  "
         for pce in range(12):
             locations = self.bitboards[pce]
             while locations:
@@ -389,7 +445,7 @@ class Bitboard():
             for r in range(8):
                 print(board[r + (c * 8)], end=" ")
             print("")
-        print("  A  B  C  D  E  F  G  H /n")
+        print("  A  B  C  D  E  F  G  H \n")
 
 def initialize():
     '''
@@ -468,18 +524,22 @@ def initialize():
 
 initialize()
 board = Bitboard()
+turn = -1
+text = "Please input move: "
+while board.playing:
+    clear()
+    print(f"\n  -------- CHESS --------  Turn: {turn}")
     board.print_board()
-board.make_move(1835036) #e2-e4
+    print(text, end="")
-board.print_board()
+    move = input()
-board.make_move(1837347) #(d7-d5)
+    if not board.encode_and_make_move(move):
-board.print_board()
+        text = "Move not possible new move: "
-board.make_move(4590371) #(exd5 - Capture!)
+        continue
-board.print_board()
+    
-board.make_move(4245795) #(Qxd5 - Capture!)
+    turn += 1
-board.print_board()
+
-board.make_move(804882) #(Nc3)
+
-board.print_board()
+
-board.make_move(829216) #(Qa5)
 
 ''' Board Index:
        a    b    c    d    e    f    g    h