A modern Music Player Daemon based on Rockbox open source high quality audio player
tsiry-sandratraina.com
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/*
2 * loopgen.h: interface file for loop generation functions for grid.[ch].
3 */
4
5#ifndef PUZZLES_LOOPGEN_H
6#define PUZZLES_LOOPGEN_H
7
8#include "puzzles.h"
9#include "grid.h"
10
11enum face_colour { FACE_WHITE, FACE_GREY, FACE_BLACK };
12
13/* face should be of type grid_face* here. */
14#define FACE_COLOUR(face) \
15 ( (face) == NULL ? FACE_BLACK : \
16 board[(face)->index] )
17
18typedef int (*loopgen_bias_fn_t)(void *ctx, char *board, int face);
19
20/* 'board' should be a char array whose length is the same as
21 * g->num_faces: this will be filled in with FACE_WHITE or FACE_BLACK
22 * after loop generation.
23 *
24 * If 'bias' is non-null, it should be a user-provided function which
25 * rates a half-finished board (i.e. may include some FACE_GREYs) for
26 * desirability; this will cause the loop generator to bias in favour
27 * of loops with a high return value from that function. The 'face'
28 * parameter to the bias function indicates which face of the grid has
29 * been modified since the last call; it is guaranteed that only one
30 * will have been (so that bias functions can work incrementally
31 * rather than re-scanning the whole grid on every call). */
32extern void generate_loop(grid *g, char *board, random_state *rs,
33 loopgen_bias_fn_t bias, void *biasctx);
34
35#endif