clear_tail        339 modules/games/gui_snake.c     char game_over_flag = 0, draw_head, clear_tail, draw_points = 1;
clear_tail        345 modules/games/gui_snake.c     clear_tail = 1;
clear_tail        397 modules/games/gui_snake.c             clear_tail = 0;
clear_tail        433 modules/games/gui_snake.c     if (clear_tail)