1 files changed, 60 insertions, 2 deletions
diff --git a/include/tak.h b/include/tak.h
index 4b103a0..32e4491 100644
--- a/include/tak.h
+++ b/include/tak.h
@@ -1,5 +1,63 @@
-#include "state.h"
-#include "ptn.h"
+#include <stdint.h>
+
+enum E_RESULT { A_OK, A_ILLEGAL, A_OVERFLOW,
+  PTN_VALID, PTN_INVALID, W_NONE, W_DRAW, W_DRAGON,
+  W_ROAD_WHITE, W_ROAD_BLACK, W_FLAT_WHITE, W_FLAT_BLACK };
+
+typedef uint8_t data_t;
+typedef uint16_t colour_stack_t;
+
+uint8_t board_size;
+data_t celldat[36];
+colour_stack_t colours[36];
+enum COLOUR current_colour;
+uint8_t white_flats, black_flats, white_caps, black_caps, turn;
+
+void reset_state(const uint8_t new_board_size);
+void next_turn(void);
+
+// -------------------------------------------------------------------
+// State management
+
+enum COLOUR         { C_WHITE, C_BLACK };
+enum STONE_VARIANT  { STONE_FLAT, STONE_STANDING, STONE_CAPSTONE };
+enum MOVE_DIRECTION { M_UP, M_DOWN, M_LEFT, M_RIGHT };
+
+enum E_RESULT
+try_place(const int8_t location, const enum COLOUR colour,
+          const enum STONE_VARIANT stone);
+
+enum E_RESULT
+try_move(const int8_t location, const enum MOVE_DIRECTION direction,
+         const uint8_t steps, const uint8_t drops[5]);
+
+enum E_RESULT
+check_win(void);
+
+// -------------------------------------------------------------------
+// PTN related
+
+enum E_RESULT
+parse_place(const uint8_t board_size, char *ptn,
+            uint8_t *out_location, enum STONE_VARIANT *out_stone);
+
+enum E_RESULT
+parse_move(const uint8_t board_size, char *ptn,
+           uint8_t *out_location, enum MOVE_DIRECTION *out_direction,
+           uint8_t *out_steps, uint8_t out_drops[5]);
+
+void
+generate_place(const uint8_t board_size, const uint8_t in_location,
+               const enum STONE_VARIANT in_stone, char out_ptn[4]);
+
+void
+generate_move(const uint8_t board_size, const uint8_t in_location,
+              const enum MOVE_DIRECTION in_direction,
+              const uint8_t in_steps, const uint8_t in_drops[5],
+              char out_ptn[10]);
+
+// -------------------------------------------------------------------
+// Game driver
 
 enum E_RESULT
 do_ptn(char *ptn);