1 files changed, 25 insertions, 9 deletions

diff --git a/chesshelpers.c b/chesshelpers.c
index a471758..1b28ed3 100644
--- a/chesshelpers.c
+++ b/chesshelpers.c
@@ -17,19 +17,35 @@ board_t make_move(board_t board, vector_t origin, vector_t end) {
 	int piece = board.pieces[origin.mx][origin.my];
 	board.pieces[origin.mx][origin.my] = 0;
 	board.pieces[end.mx][end.my] = piece;
+	return board;
+}
+board_t clone_board(board_t board) {
+	board_t newBoard;
+	newBoard.blackKingHasMoved = board.blackKingHasMoved;
+	newBoard.whiteKingHasMoved = board.whiteKingHasMoved;
+	newBoard.lastPawnMove = board.lastPawnMove;
+	int** pieces = malloc(8 * sizeof(int*));
+	for(int r = 0; r < 8; r++) {
+		pieces[r] = malloc(8 * sizeof(int));
+		for(int c = 0; c < 8; c++) {
+			pieces[r][c] = board.pieces[r][c];
+		}
+	}
+	newBoard.pieces = pieces;
+	return newBoard;
 }
 int in_board(vector_t position) {
 	return position.mx < 8 && position.mx >= 0 && position.my < 8 && position.my >= 0;
 }
-int is_empty(int** board, vector_t position) {
-	return board[position.mx][position.my] == 0;
+int is_empty(board_t board, vector_t position) {
+	return board.pieces[position.mx][position.my] == 0;
 }
-int is_color(int** board, vector_t position, int color) {
+int is_color(board_t board, vector_t position, int color) {
 	if(color == 0) {
-		return board[position.mx][position.my] >= 1 && board[position.mx][position.my] <= 6;
+		return board.pieces[position.mx][position.my] >= 1 && board.pieces[position.mx][position.my] <= 6;
 	}	
 	else {
-		return board[position.mx][position.my] >= 7;
+		return board.pieces[position.mx][position.my] >= 7;
 	}
 }
 //converts board coordinates into algebraic notation
@@ -41,14 +57,14 @@ char* get_readable_coords(vector_t position) {
 	return output;
 }
 //gets the proper algebraic notation for the move
-char* get_move_name(int** board, vector_t origin, vector_t end) {
-	int piece = board[origin.mx][origin.my];
+char* get_move_name(board_t board, vector_t origin, vector_t end) {
+	int piece = board.pieces[origin.mx][origin.my];
 	if(piece > 6) {
 		piece -= 6;
 	}
 	if(piece != 1) {
 		char cPiece = piece == pawn ? 'P' : piece == knight ? 'N' : piece == bishop ? 'B' : piece == rook ? 'R' : piece == queen ? 'Q' : 'K';
-		int isCapture = board[end.mx][end.my] != 0;
+		int isCapture = board.pieces[end.mx][end.my] != 0;
 		char* output = calloc(isCapture ? 5 : 4, sizeof(char));
 		output[0] = cPiece;
 		if(isCapture) {
@@ -61,7 +77,7 @@ char* get_move_name(int** board, vector_t origin, vector_t end) {
 		return output;
 	}
 	else {
-		int isCapture = board[end.mx][end.my] != 0;
+		int isCapture = board.pieces[end.mx][end.my] != 0;
 		char* output = calloc(isCapture ? 5 : 3, sizeof(char));
 		if(isCapture) {
 			output[0] = 'a' + origin.mx;