1 files changed, 46 insertions, 0 deletions

diff --git a/old/2021-02-18-piecefilter/src/moves.h b/old/2021-02-18-piecefilter/src/moves.h
new file mode 100644
index 0000000..9ccf6e4
--- /dev/null
+++ b/old/2021-02-18-piecefilter/src/moves.h
@@ -0,0 +1,46 @@
+#ifndef MOVES_H
+#define MOVES_H
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include "cube.h"
+#include "utils.h"
+
+#define NMOVES (z3+1)
+
+typedef enum {
+  NULLMOVE,
+  U, U2, U3, D, D2, D3, R, R2, R3, L, L2, L3, F, F2, F3, B, B2, B3,
+  Uw, Uw2, Uw3, Dw, Dw2, Dw3, Rw, Rw2, Rw3,
+  Lw, Lw2, Lw3, Fw, Fw2, Fw3, Bw, Bw2, Bw3,
+  M, M2, M3, S, S2, S3, E, E2, E3,
+  x, x2, x3, y, y2, y3, z, z2, z3,
+} Move;
+
+/* An alg is an array of "NissMoves", which can be on normal or on inverse. */
+typedef struct { bool inverse; Move m; } NissMove;
+
+/* Movesets */
+extern bool standard_moveset[NMOVES];
+
+extern bool commute[NMOVES][NMOVES];
+extern bool possible_next[NMOVES][NMOVES][NMOVES];
+extern Move inverse[NMOVES];
+
+bool is_solve_up_to_reorient(Cube cube);
+int copy_alg(NissMove *src, NissMove *dest); /*return number of moves copied */
+void print_moves(NissMove *alg);
+int read_moves(char *str, NissMove *alg, int n); /* reads at most n moves */
+void cleanup(NissMove *src, int n); /* rewrites using basic moves, at most n */
+Cube move_cube(Move m, Cube cube);
+/* I might want to replace this with two versions, one that uses PieceFilter */
+Cube apply_alg(NissMove *alg, Cube cube);
+
+/* Merge the following two?
+   always in this order */
+void init_ttables(bool read, bool write);
+void init_aux_tables();
+
+
+#endif