-static game_state *make_move(game_state *from, game_ui *ui, game_drawstate *ds,
- int x, int y, int button)
+struct game_drawstate {
+ int tilesize;
+ int FIXME;
+};
+
+static char *interpret_move(game_state *state, game_ui *ui, const game_drawstate *ds,
+ int x, int y, int button)
+{
+ return NULL;
+}
+
+static game_state *execute_move(game_state *state, char *move)