X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Ftypes.h;h=1bf42bbe46337d5cd6c6c382a7647e58bc64c2db;hb=1e586288ca4a0ae567c8d9b9b77e804f25fe6719;hp=3aafb5c3af08083bdbdcd99567b7a22ee842ba00;hpb=057d710fc2f23b63b574122f2609e03f58d2e494;p=stockfish

diff --git a/src/types.h b/src/types.h
index 3aafb5c3..1bf42bbe 100644
--- a/src/types.h
+++ b/src/types.h
@@ -237,17 +237,15 @@ enum Square {
 
   SQUARE_NB = 64,
 
-  DELTA_N =  8,
-  DELTA_E =  1,
-  DELTA_S = -8,
-  DELTA_W = -1,
-
-  DELTA_NN = DELTA_N + DELTA_N,
-  DELTA_NE = DELTA_N + DELTA_E,
-  DELTA_SE = DELTA_S + DELTA_E,
-  DELTA_SS = DELTA_S + DELTA_S,
-  DELTA_SW = DELTA_S + DELTA_W,
-  DELTA_NW = DELTA_N + DELTA_W
+  NORTH =  8,
+  EAST  =  1,
+  SOUTH = -8,
+  WEST  = -1,
+
+  NORTH_EAST = NORTH + EAST,
+  SOUTH_EAST = SOUTH + EAST,
+  SOUTH_WEST = SOUTH + WEST,
+  NORTH_WEST = NORTH + WEST
 };
 
 enum File {
@@ -265,22 +263,22 @@ enum Rank {
 enum Score : int { SCORE_ZERO };
 
 inline Score make_score(int mg, int eg) {
-  return Score((mg << 16) + eg);
+  return Score((eg << 16) + mg);
 }
 
 /// Extracting the signed lower and upper 16 bits is not so trivial because
 /// according to the standard a simple cast to short is implementation defined
 /// and so is a right shift of a signed integer.
-inline Value mg_value(Score s) {
+inline Value eg_value(Score s) {
 
-  union { uint16_t u; int16_t s; } mg = { uint16_t(unsigned(s + 0x8000) >> 16) };
-  return Value(mg.s);
+  union { uint16_t u; int16_t s; } eg = { uint16_t(unsigned(s + 0x8000) >> 16) };
+  return Value(eg.s);
 }
 
-inline Value eg_value(Score s) {
+inline Value mg_value(Score s) {
 
-  union { uint16_t u; int16_t s; } eg = { uint16_t(unsigned(s)) };
-  return Value(eg.s);
+  union { uint16_t u; int16_t s; } mg = { uint16_t(unsigned(s)) };
+  return Value(mg.s);
 }
 
 #define ENABLE_BASE_OPERATORS_ON(T)                             \
@@ -401,7 +399,7 @@ inline bool opposite_colors(Square s1, Square s2) {
 }
 
 inline Square pawn_push(Color c) {
-  return c == WHITE ? DELTA_N : DELTA_S;
+  return c == WHITE ? NORTH : SOUTH;
 }
 
 inline Square from_sq(Move m) {