fix: load openings at right time

Author: ArjunSahlot

src/opening.cpp

@@ -76,7 +76,7 @@ namespace Opening {
             return {"", ""};
         }
 
-        string sequence = strip(possible[Random::random()%possible.size()]);
+        string sequence = strip(possible[Random::random() % possible.size()]);
 
         return {sequence, sequence.substr(moves.size(), 5)};
     }

src/uci.cpp

@@ -183,11 +183,14 @@ int loop() {
     string cmd;
     Options options;
     Position pos = Bitboard::startpos();
-    Opening::load_openings(options);
     vector<string> move_list = {};
     float prev_eval = 0;
     bool searching = false;
 
+    if (options.OwnBook) {
+        Opening::load_openings(options);
+    }
+
     while (getline(cin, cmd)) {
         cmd = strip(cmd);
 
@@ -231,9 +234,14 @@ int loop() {
             else if (name == "EvalKings")      options.EvalKings      = std::stof(value)/100;
 
             else if (name == "OwnBook") {
-                if (value == "true") options.OwnBook = true;
-                else if (value == "false") options.OwnBook = false;
-                else std::cerr << "Unknown value: " << value << endl;
+                if (value == "true") {
+                    options.OwnBook = true;
+                    Opening::load_openings(options);
+                } else if (value == "false") {
+                    options.OwnBook = false;
+                } else {
+                    std::cerr << "Unknown value: " << value << endl;
+                }
             }
 
             else if (name == "OwnBookPath") {