added header file => contains data structures

board.h

+/* ---------------------------------------------------------
+============================================================
+
+	Chess Engine in C Language
+	==========================
+
+		8 |_|#|_|#|_|#|_|#|
+		7 |#|_|#|_|#|_|#|_|
+		6 |_|#|_|#|_|#|_|#|
+		5 |#|_|#|_|#|_|#|_|
+		4 |_|#|_|#|_|#|_|#|
+		3 |#|_|#|_|#|_|#|_|
+		2 |_|#|_|#|_|#|_|#|
+		1 |#|_|#|_|#|_|#|_|
+		   a b c d e f g h
+
+-----------------------------------------------------------
+			BY
+		Radia EL HAMDOUNI
+		
+		MLOD - Mini-Projet 
+				
+
+====================================================					
+\---------------------------------------------------*/
+
+/************************************************************\
+;------------------------------------------------------------;
+;                 Chess engine in C                          ;
+;                                                            ;
+;------------------------------------------------------------;
+;    TODO :                                                  ;
+;           [x] Bitboard representation                      ;
+;			[x]  Moving pieces                   ;
+;	    []  Fen implementation                           ;
+;           []  Move generator                               ;
+;           []  Search                                       ;
+;           []  Evaluation                                   ;
+\************************************************************/
+
+
+
+
+/*
+ 	Compile and run the program 
+ 		$gcc chess_engine.c -o chess_engine && ./chess_engine
+
+*/
+
+
+
+
+// libraries
+#include<stdio.h>
+
+
+
+/* Piece encoding */
+
+// for the mapping
+enum pieces{
+	e, 	// empty square
+	P,	 // white pond
+	N, 	// white knight
+	B, 	// white bishop
+	R, 	// white rook
+	Q, 	// white queen
+	K, 	// white king
+	p, 	// black pond
+	n, 	// black knight
+	b, 	// black bishop
+	r, 	// black rook 
+	q, 	// black queen 
+	k, 	// black king
+	o, 	// board limit
+};
+
+
+// unicode pieces
+char* chess_pieces[] = {" . "," ♙ "," ♘ "," ♗ "," ♖ "," ♕ "," ♔ "," ♟︎ "," ♞ "," ♝ "," ♜ "," ♛ "," ♚ "};
+
+// character indexes
+int char_pieces[] = {
+    ['P'] = P,
+    ['N'] = N,
+    ['B'] = B,
+    ['R'] = R,
+    ['Q'] = Q,
+    ['K'] = K,
+    ['p'] = p,
+    ['n'] = n,
+    ['b'] = b,
+    ['r'] = r,
+    ['q'] = q,
+    ['k'] = k,
+};
+
+
+
+// chess board representation 0x88
+int board[128] = {
+	r , n , b , q , k , b , n , r , o , o , o , o , o , o , o , o ,  
+	p , p , p , p , p , p , p , p , o , o , o , o , o , o , o , o ,
+        e , e , e , e , e , e , e , e , o , o , o , o , o , o , o , o ,	
+        e , e , e , e , e , e , e , e , o , o , o , o , o , o , o , o ,
+        e , e , e , e , e , e , e , e , o , o , o , o , o , o , o , o ,
+        e , e , e , e , e , e , e , e , o , o , o , o , o , o , o , o ,
+        P , P , P , P , P , P , P , P , o , o , o , o , o , o , o , o , 
+	R , N , B , Q , K , B , N , R , o , o , o , o , o , o , o , o , 
+};
+
+// mapping the board to algebraic notation
+char *algebraic_board[] = {
+    "a8", "b8", "c8", "d8", "e8", "f8", "g8", "h8", "i8", "j8", "k8", "l8", "m8", "n8", "o8", "p8",
+    "a7", "b7", "c7", "d7", "e7", "f7", "g7", "h7", "i7", "j7", "k7", "l7", "m7", "n7", "o7", "p7",
+    "a6", "b6", "c6", "d6", "e6", "f6", "g6", "h6", "i6", "j6", "k6", "l6", "m6", "n6", "o6", "p6",
+    "a5", "b5", "c5", "d5", "e5", "f5", "g5", "h5", "i5", "j5", "k5", "l5", "m5", "n5", "o5", "p5",
+    "a4", "b4", "c4", "d4", "e4", "f4", "g4", "h4", "i4", "j4", "k4", "l4", "m4", "n4", "o4", "p4",
+    "a3", "b3", "c3", "d3", "e3", "f3", "g3", "h3", "i3", "j3", "k3", "l3", "m3", "n3", "o3", "p3",
+    "a2", "b2", "c2", "d2", "e2", "f2", "g2", "h2", "i2", "j2", "k2", "l2", "m2", "n2", "o2", "p2",
+    "a1", "b1", "c1", "d1", "e1", "f1", "g1", "h1", "i1", "j1", "k1", "l1", "m1", "n1", "o1", "p1"
+};
+
+
+
+// valid squares in algebraic notation
+enum squares {
+    a8 = 0, b8, c8, d8, e8, f8, g8, h8,
+    a7 = 16, b7, c7, d7, e7, f7, g7, h7,
+    a6 = 32, b6, c6, d6, e6, f6, g6, h6,
+    a5 = 48, b5, c5, d5, e5, f5, g5, h5,
+    a4 = 64, b4, c4, d4, e4, f4, g4, h4,
+    a3 = 80, b3, c3, d3, e3, f3, g3, h3,
+    a2 = 96, b2, c2, d2, e2, f2, g2, h2,
+    a1 = 112, b1, c1, d1, e1, f1, g1, h1
+};
+
+
+