#include <stdio.h>
#include <stdlib.h>

enum {
    N_SHIPS,
    WIDTH = 8,
    HEIGHT = 8,
};

struct position {
    int x;
    int y;
};

struct ship {
    int length;
    struct position position;
    char sunken;
    char alignment;
    char *hits;
};

struct game_state {
    char running;
    char board[WIDTH][HEIGHT];
    struct ship ships[N_SHIPS];
};

struct ship create_ship(int length, struct position position);
void delete_ship(struct ship ship);

void hit(struct game_state *game_state, struct position position);

struct game_state init_game_state();
void deinit_game_state(struct game_state *game_state);
char check_win_condition(struct game_state *game_state);

struct position read_position();

int main(void) {
    struct game_state game_state = init_game_state();
    while (game_state.running) {
        struct position hit_position = read_position();
        hit(&game_state, hit_position);
        if (check_win_condition(&game_state)) {
            game_state.running = 0;
            printf("You win!");
        }
    }
    deinit_game_state(&game_state);
    return 0;
}

struct ship create_ship(int length, struct position position) {
    struct ship ship = {.length = length, .position = position, .sunken = 0};
    ship.hits = calloc(length, sizeof *ship.hits);
    return ship;
}
void delete_ship(struct ship ship) {
    free(ship.hits);
}

void hit(struct game_state *game_state, struct position position);

struct game_state init_game_state() {
    struct game_state game_state;
    for (int i = 0; i < N_SHIPS; ++i) {
        /* generate ship */
    }
}

void deinit_game_state(struct game_state *game_state) {
    for (int i = 0; i < N_SHIPS; ++i) {
        delete_ship(game_state->ships[i]);
    }
}

char check_win_condition(struct game_state *game_state);

struct position read_position();