From 1bd4691d9cc46ec75adbe899b289a1ebc5460721 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Fri, 1 Aug 2025 16:52:44 +0200
Subject: Added CPEPE coordinate in preparation of full DRFIN solver

---
 src/solvers/coord/cpepe.h | 86 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 src/solvers/coord/cpepe.h

(limited to 'src/solvers')

diff --git a/src/solvers/coord/cpepe.h b/src/solvers/coord/cpepe.h
new file mode 100644
index 0000000..37ec014
--- /dev/null
+++ b/src/solvers/coord/cpepe.h
@@ -0,0 +1,86 @@
+STATIC cube_t coordinate_cpepe_merge(const cube_t, const cube_t);
+STATIC uint64_t coordinate_cpepe_coord(const cube_t, const unsigned char *);
+STATIC cube_t coordinate_cpepe_cube(uint64_t, const unsigned char *);
+STATIC bool coordinate_cpepe_isnasty(uint64_t, const unsigned char *);
+STATIC size_t coordinate_cpepe_gendata(unsigned char *);
+
+STATIC coord_t coordinate_cpepe = {
+	.name = "CPEPE",
+	.coord = &coordinate_cpepe_coord,
+	.cube = &coordinate_cpepe_cube,
+	.isnasty = &coordinate_cpepe_isnasty,
+	.gendata = coordinate_cpepe_gendata,
+	.max = CLASSES_CP_16 * FACT_4,
+	.trans_mask = TM_UDFIX,
+	.moves_mask_gendata = MM18_DR,
+	.moves_mask_solve = MM18_DR,
+	.is_admissible = &solution_always_valid,
+	.is_solvable = &is_drfin_solvable,
+	.is_solved = NULL,
+	.allow_niss = false,
+	.pruning_distribution = {
+		/* TODO */
+ 		[0] = 0,
+		[1] = 0,
+		[2] = 0,
+		[3] = 0,
+		[4] = 0,
+		[5] = 0,
+		[6] = 0,
+		[7] = 0,
+		[8] = 0,
+		[9] = 0,
+		[10] = 0,
+		[11] = 0,
+		[12] = 0,
+		[13] = 0,
+		[14] = 0,
+		[15] = 0,
+	},
+	.pruning_max = 15, /* TODO */
+	.sym = {
+		.classes = CLASSES_CP_16,
+		.max = FACT_8,
+		.coord = &coord_cp,
+		.cube = &invcoord_cp,
+		.max2 = FACT_4,
+		.coord2 = &coord_epe,
+		.cube2 = &invcoord_epe,
+		.merge = &coordinate_cpepe_merge,
+	},
+};
+
+STATIC cube_t
+coordinate_cpepe_merge(const cube_t c1, const cube_t c2)
+{
+	cube_t merged;
+
+	merged = c1;
+	copy_edges(&merged, c2);
+
+	return merged;
+}
+
+STATIC uint64_t
+coordinate_cpepe_coord(const cube_t cube, const unsigned char *data)
+{
+	return coord_coord_generic(&coordinate_cpepe, cube, data);
+}
+
+STATIC cube_t
+coordinate_cpepe_cube(uint64_t i, const unsigned char *data)
+{
+	return coord_cube_generic(&coordinate_cpepe, i, data);
+}
+
+STATIC bool
+coordinate_cpepe_isnasty(uint64_t i, const unsigned char *data)
+{
+	return coord_isnasty_generic(&coordinate_cpepe, i, data);
+}
+
+STATIC size_t
+coordinate_cpepe_gendata(unsigned char *data)
+{
+	return coord_gendata_generic(&coordinate_cpepe, data);
+}
-- 
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