From b0053277e385bee23336d1fe6b69a12f49f9172f Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Tue, 1 Apr 2025 09:33:26 +0200
Subject: simplified allowedmoves logic

---
 src/utils/constants.h | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'src/utils')

diff --git a/src/utils/constants.h b/src/utils/constants.h
index a6c6b7a..ba7f4d4 100644
--- a/src/utils/constants.h
+++ b/src/utils/constants.h
@@ -102,7 +102,17 @@ STATIC int64_t binomial[12][12] = {
 
 #define MM_ALLMOVES    UINT32_C(0x3FFFF)
 #define MM_NOHALFTURNS UINT32_C(0x2DB6D)
-#define MM_SIDE(m)     (UINT32_C(7) << (uint32_t)(m))
+#define MM_SINGLE(m)   (UINT32_C(1) << (uint32_t)(m))
+#define MM_FACE(m)     (UINT32_C(7) << (uint32_t)(m))
+#define MM_EO          (\
+    MM_FACE(MOVE_U) | MM_FACE(MOVE_D) |\
+    MM_FACE(MOVE_R) | MM_FACE(MOVE_L) |\
+    MM_SINGLE(MOVE_F2) | MM_SINGLE(MOVE_B2))
+#define MM_DR          (\
+    MM_FACE(MOVE_U) | MM_FACE(MOVE_D) |\
+    MM_SINGLE(MOVE_R2) | MM_SINGLE(MOVE_L2) |\
+    MM_SINGLE(MOVE_F2) | MM_SINGLE(MOVE_B2))
+#define MM_HTR (MM_ALLMOVES & ~MM_NOHALFTURNS)
 
 #define TM_ALLTRANS    UINT64_C(0xFFFFFFFFFFFF)
 #define TM_SINGLE(t)   (UINT64_C(1) << (uint64_t)(t))
@@ -151,6 +161,15 @@ STATIC int64_t binomial[12][12] = {
 #define EFLIP       UINT8_C(0x10)
 #define UINT8_ERROR UINT8_MAX
 
+STATIC const uint32_t allowedmask[] = {
+	UINT32_C(0x3FFF8),
+	UINT32_C(0x3FFC0),
+	UINT32_C(0x3FE3F),
+	UINT32_C(0x3F03F),
+	UINT32_C(0x38FFF),
+	UINT32_C(0x00FFF)
+};
+
 STATIC const char *cornerstr[] = {
 	[CORNER_UFR] = "UFR",
 	[CORNER_UBL] = "UBL",
-- 
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