dreo.h (2288B)
1 #define DRESEP_CLASSES 81 2 3 STATIC uint64_t coord_dresep_nosym(cube_t); 4 STATIC cube_t invcoord_dresep_nosym(uint64_t); 5 STATIC cube_t coordinate_dreo_merge(cube_t, cube_t); 6 7 STATIC uint64_t coordinate_dreo_coord(cube_t, const unsigned char *); 8 STATIC cube_t coordinate_dreo_cube(uint64_t, const unsigned char *); 9 STATIC bool coordinate_dreo_isnasty(uint64_t, const unsigned char *); 10 STATIC size_t coordinate_dreo_gendata(unsigned char *); 11 12 STATIC bool is_dreo_solvable(cube_t); 13 14 STATIC coord_t coordinate_dreo = { 15 .name = "DREO", 16 .coord = &coordinate_dreo_coord, 17 .cube = &coordinate_dreo_cube, 18 .isnasty = &coordinate_dreo_isnasty, 19 .gendata = coordinate_dreo_gendata, 20 .max = DRESEP_CLASSES * POW_3_7, 21 .trans_mask = TM_UDRLFIX, 22 .moves_mask = MM18_EO, 23 .axistrans = { 24 [AXIS_UD] = TRANS_UFr, 25 [AXIS_RL] = TRANS_RFr, 26 [AXIS_FB] = TRANS_FDr, 27 }, 28 .is_admissible = &solution_lastqt_cw, 29 .is_solvable = &is_dreo_solvable, 30 .sym = { 31 .classes = DRESEP_CLASSES, 32 .max = COMB_12_4, 33 .coord = &coord_dresep_nosym, 34 .cube = &invcoord_dresep_nosym, 35 .max2 = POW_3_7, 36 .coord2 = &coord_co_u, 37 .cube2 = &invcoord_co_u, 38 .merge = &coordinate_dreo_merge, 39 }, 40 }; 41 42 STATIC uint64_t 43 coord_dresep_nosym(cube_t cube) 44 { 45 return (uint64_t)coord_esep(cube) / COMB_8_4; 46 } 47 48 STATIC cube_t 49 invcoord_dresep_nosym(uint64_t coord) 50 { 51 return invcoord_esep(coord * COMB_8_4); 52 } 53 54 STATIC cube_t 55 coordinate_dreo_merge(cube_t c1, cube_t c2) 56 { 57 cube_t merged; 58 59 merged = c1; 60 copy_corners(&merged, c2); 61 62 return merged; 63 } 64 65 STATIC uint64_t 66 coordinate_dreo_coord(cube_t cube, const unsigned char *data) 67 { 68 return coord_coord_generic(&coordinate_dreo, cube, data); 69 } 70 71 STATIC cube_t 72 coordinate_dreo_cube(uint64_t i, const unsigned char *data) 73 { 74 return coord_cube_generic(&coordinate_dreo, i, data); 75 } 76 77 STATIC bool 78 coordinate_dreo_isnasty(uint64_t i, const unsigned char *data) 79 { 80 return coord_isnasty_generic(&coordinate_dreo, i, data); 81 } 82 83 STATIC size_t 84 coordinate_dreo_gendata(unsigned char *data) 85 { 86 return coord_gendata_generic(&coordinate_dreo, data); 87 } 88 89 STATIC bool 90 is_dreo_solvable(cube_t cube) { 91 uint8_t c[8], e[12], i, cocount; 92 93 if (coord_eo(cube) != 0) 94 return false; 95 96 pieces(&cube, c, e); 97 98 for (i = 0, cocount = 0; i < 8; i++) 99 cocount += (c[i] & COBITS_2) >> COSHIFT; 100 101 return cocount % 3 == 0; 102 }