switch to builtin_popcountll for board eval

headers/eval.h

@@ -1,4 +1,5 @@
 #ifndef EVAL_H
 #define EVAL_H
 move *findBest(move* move, size_t size, game* g);
+void makeMove(game *g, move* m);
 #endif

src/eval.c

@@ -12,7 +12,7 @@
 #define QUEEN_VALUE 900
 #define KING_VALUE 20000
 #define INF 9000000
-#define MAX_DEPTH 3  // Adjustable depth
+#define MAX_DEPTH 3
 
 int evaluateBoard(game *game);
 void makeMove(game *g, move* m);
@@ -38,32 +38,24 @@ move *findBest(move* moves, size_t size, game* g){
 
 int evaluateBoard(game *game) {
     int score = 0;
+    score += __builtin_popcountll(game->white.pawns) * PAWN_VALUE;
+    score += __builtin_popcountll(game->white.knights) * KNIGHT_VALUE;
+    score += __builtin_popcountll(game->white.bishops) * BISHOP_VALUE;
+    score += __builtin_popcountll(game->white.rooks) * ROOK_VALUE;
+    score += __builtin_popcountll(game->white.queen) * QUEEN_VALUE;
+    score += __builtin_popcountll(game->white.king) * KING_VALUE;
 
-  for (int i = 0; i < 64; ++i) {
+    score -= __builtin_popcountll(game->black.pawns) * PAWN_VALUE;
-    long long bit = 1LL << i;
+    score -= __builtin_popcountll(game->black.knights) * KNIGHT_VALUE;
-    if (game->white.pawns & bit) score += PAWN_VALUE;
+    score -= __builtin_popcountll(game->black.bishops) * BISHOP_VALUE;
-    else if (game->white.knights & bit) score += KNIGHT_VALUE;
+    score -= __builtin_popcountll(game->black.rooks) * ROOK_VALUE;
-    else if (game->white.bishops & bit) score += BISHOP_VALUE;
+    score -= __builtin_popcountll(game->black.queen) * QUEEN_VALUE;
-    else if (game->white.rooks & bit) score += ROOK_VALUE;
+    score -= __builtin_popcountll(game->black.king) * KING_VALUE;
-    else if (game->white.queen & bit) score += QUEEN_VALUE;
-    else if (game->white.king & bit) score += KING_VALUE;
-  }
-
-  for (int i = 0; i < 64; ++i) {
-    long long bit = 1LL << i;
-    if (game->black.pawns & bit) score -= PAWN_VALUE;
-    else if (game->black.knights & bit) score -= KNIGHT_VALUE;
-    else if (game->black.bishops & bit) score -= BISHOP_VALUE;
-    else if (game->black.rooks & bit) score -= ROOK_VALUE;
-    else if (game->black.queen & bit) score -= QUEEN_VALUE;
-    else if (game->black.king & bit) score -= KING_VALUE;
-  }
 
     return score;
 }
 
 void makeMove(game *g, move* m) {
-  //should replace inside of PlayMoves but im lazy
   long long from_bit = 1LL << m->From;
   long long to_bit = 1LL << m->To;
 

src/help.c

@@ -2,7 +2,7 @@
 #include "types.h"
 
 long long fullSet(sets *s) {
-  return s->bishops ^ s->king ^ s->knights ^ s->pawns ^ s->queen ^ s->rooks;
+  return s->bishops | s->king | s->knights | s->pawns | s->queen | s->rooks;
 }
 
 long long fullSetBoth(game *g) {

src/main.c

@@ -53,7 +53,6 @@ int main() {
       playMoves(g, lineRest);
     } else if (!strcmp("ucinewgame", token)) {
     } else if (!strcmp("isready", token)) {
-      srand(time(NULL));
       printf("readyok\n");
     } else if (!strcmp("go", token)) {
       static move mov[1500];//big dumb buffer
@@ -122,31 +121,16 @@ game *fenGame(char *str) {
 }
 
 void playMoves(game *g, char *moves) {
-  char *move;
+  char *moveStr;
-  move = strtok_r(moves, " ", &moves);
+  moveStr = strtok_r(moves, " ", &moves);
-  move = strtok_r(moves, " ", &moves);
+  moveStr = strtok_r(moves, " ", &moves);
-  while (move) {
+  while (moveStr) {
-    long long bit = 1LL << ((move[1] - '0' - 1) * 8 + (move[0] - 'a'));
+    move m;
-    long long *set = findSet(g, bit);
+    m.From = (moveStr[0]-'a') + (moveStr[1]-'1')*8;
-    if (!set) {
+    m.To = (moveStr[2]-'a') + (moveStr[3]-'1')*8;
-      printf("info fuck\n");
+    m.Promo = (strlen(moveStr) == 5) ? moveStr[4] : 0;
-      return;
+    makeMove(g, &m);
-    }
+    moveStr = strtok_r(moves, " ", &moves);
-    *set &= (~bit);
-    bit = 1LL << ((move[3] - '0' - 1) * 8 + (move[2] - 'a'));
-    long long *tmp = findSet(g, bit);
-    if (tmp)
-      *tmp &= (~bit);
-    if (strlen(move) == 5) {
-      char c = move[4];
-      if (g->whiteToMove)
-        c = toupper(c);
-      set = charToSet(g, c);
-    }
-    *set |= bit;
-
-    move = strtok_r(moves, " ", &moves);
-    g->whiteToMove = !g->whiteToMove;
   }
 }