#ifndef FIELD_H_SENTRY
#define FIELD_H_SENTRY

enum {
    field_width  = 28,
    field_height = 29,
    door = '#',
    block = '/',
    coin = '.'
};

enum intersection_type {
    one_path    = '1',
    two_paths   = '2',
    three_paths = '3',
    direct_path
};

enum select_character {
    ghost_char = '&',
    pac_char = 'C'
};

typedef char (*game_space)[field_width];
game_space get_new_field();

struct free_directions {
    int left;
    int right;
    int up;
    int down;
};

void print_field(game_space field);

void display_character(int y, int x, enum select_character symbol);

struct ghost_type;
void display_ghosts_on_field(struct ghost_type *red_ghost,
                             struct ghost_type *pink_ghost,
                             struct ghost_type *blue_ghost,
                             struct ghost_type *orange_ghost);

struct queue;
struct coordinates;
void clear_or_revert_symbol(game_space field, struct coordinates position,
                            enum select_character character,
                            struct queue *eaten_coins);

enum intersection_type get_intersection(const game_space field,
                                        struct ghost_type *ghost);

struct free_directions find_free_directions(game_space field, int y, int x);

int is_obstacle(game_space field, int x, int y);
int field_has_coin(int x, int y);

#endif