Added license information!

1 files changed, 32 insertions, 3 deletions

diff --git a/include/tak.h b/include/tak.h
index 135e4eb..8b40430 100644
--- a/include/tak.h
+++ b/include/tak.h
@@ -1,14 +1,32 @@
+/*
+	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 Takwrap.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 #ifndef TAK_H
 #define TAK_H
 
 #include <stdint.h>
 
+// ===================================================================
+// Types
+// ===================================================================
+
 enum E_RESULT {ACT_OK, ACT_ILLEGAL, ACT_OVERFLOW,
 	PTN_VALID, PTN_INVALID, GAME_END };
 
-// -------------------------------------------------------------------
-// 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 };
@@ -27,6 +45,10 @@ typedef uint16_t colour_stack_t;
 #define COUNT_AT(l)         (celldat[(l)] >> NUM_SHIFT)
 #define THE_COORDS(col,row) ((col)+(row)*board_size)
 
+// ===================================================================
+// Variables
+// ===================================================================
+
 extern enum WIN_TYPE won;
 extern uint8_t board_size;
 extern data_t celldat[36];
@@ -34,6 +56,13 @@ extern colour_stack_t colours[36];
 extern enum COLOUR current_colour;
 extern uint8_t white_count, black_count, ply;
 
+// ===================================================================
+// Methods
+// ===================================================================
+
+// -------------------------------------------------------------------
+// Game state
+
 void reset_state(const uint8_t new_board_size);
 void next_ply(void);