implementing castling

1 files changed, 16 insertions, 8 deletions

diff --git a/src/fen.cpp b/src/fen.cpp
index 7597143..4b8686e 100644
--- a/src/fen.cpp
+++ b/src/fen.cpp
@@ -13,8 +13,6 @@ void setBoardFen(std::string fen, Game *b) {
   int file = 0;
   int rank = 0;
 
-  std::string castle = "";
-
   enum parserState {
     POSITION,
     TURN,
@@ -53,15 +51,26 @@ void setBoardFen(std::string fen, Game *b) {
     }
     if (state == CASTLE) {
       if (fen[i] == '-') {
-        castle = "-";
+        b->blackCastleKing = false;
+        b->blackCastleQueen = false;
+        b->whiteCastleKing = false;
+        b->whiteCastleQueen = false;
         continue;
       }
-      if (toupper(fen[i]) == 'K') {
-        castle += fen[i];
+      if (fen[i] == 'K') {
+        b->whiteCastleKing = true;
         continue;
       }
-      if (toupper(fen[i]) == 'Q') {
-        castle += fen[i];
+      if (fen[i] == 'Q') {
+        b->whiteCastleQueen = true;
+        continue;
+      }
+      if (fen[i] == 'k') {
+        b->blackCastleKing = true;
+        continue;
+      }
+      if (fen[i] == 'q') {
+        b->blackCastleQueen = true;
         continue;
       }
     }
@@ -135,5 +144,4 @@ void setBoardFen(std::string fen, Game *b) {
     }
     break;
   }
-  b->castle = castle.empty() ? "-" : castle;
 }