1 files changed, 47 insertions, 0 deletions
diff --git a/include/pv.h b/include/pv.h
new file mode 100644
index 0000000..4be7b24
--- /dev/null
+++ b/include/pv.h
@@ -0,0 +1,47 @@
+/*
+  This file is part of ctak.
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with ctak. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef PV_H
+#define PV_H
+
+#ifdef RECORD_PV
+
+#include <stdint.h>
+
+#include <tak.h>
+
+#define PV_MAX_CELLS (6 * 6)
+
+typedef struct pv_leaf_s {
+  float head[3];
+  uint8_t cells[PV_MAX_CELLS];
+  uint8_t current_colour;
+  uint8_t terminal;
+  float terminal_value;
+} pv_leaf_t;
+
+// Capture a horizon leaf (winner == 0xFF) or an exact terminal leaf
+void pv_capture_leaf(pv_leaf_t *leaf, tak_state_p state,
+                     enum WIN_TYPE winner);
+
+// Publish and retrieve the leaf selected by the full-depth root search
+void pv_publish_leaf(const pv_leaf_t *leaf);
+const pv_leaf_t *pv_get_leaf(void);
+
+#endif
+
+#endif