Daily #179 - Intermediate

intermediate.c

// compile with:
// gcc -std=c99 -g -Wall -o intermediate -lncurses intermediate.c

#include <ncurses.h>
#include <unistd.h>
#include <time.h>
#include <stdlib.h>

#define WIDTH  20
#define HEIGHT 20

char level[400] = {
'-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'|','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','.','|',
'-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-'
};

typedef struct _player {
    int x;
    int y;
    int m_points;
    int loot;
} Player;

void draw(Player *player) {
    for (int y = 0; y < WIDTH; y++) {
        for (int x = 0; x < WIDTH; x++)
            mvaddch(y, x, level[y * WIDTH + x]);
    }
    mvaddch(player->y, player->x, '@' | A_BOLD);
    mvprintw(21,0,"Movement Points: %d Loot: %d",
             player->m_points, player->loot);
}

void check_hit(Player *old, Player *cur) {
    if (level[cur->y * WIDTH + cur->x] == '-' ||
        level[cur->y * WIDTH + cur->x] == '|') {
        cur->y = old->y;
        cur->x = old->x;
    } else {
        cur->m_points -= 1;
    }
    if (level[cur->y * WIDTH + cur->x] == '$') {
        level[cur->y * WIDTH + cur->x] = '.';
        cur->loot++;
    }
}

void init_game(Player *player) {
    srand(time(NULL));
    int loot_placed = 0;
    while (loot_placed < 100) {
        int rand_x = rand() % 20;
        int rand_y = rand() % 20;
        if (level[rand_y * WIDTH + rand_x] == '.') {
            loot_placed++;
            level[rand_y * WIDTH + rand_x] = '$';
        }
    }
    int rand_x, rand_y;
    do {
        rand_x = rand() % 20;
        rand_y = rand() % 20;
    } while (level[rand_y * WIDTH + rand_x] != '.');
    player->x = rand_x;
    player->y = rand_y;
    player->m_points = 100;
    player->loot = 0;
}

int do_input(Player *player) {
    Player old = *player;
    int ch = getch();
    switch (ch) {
        case 'q':
        case 'Q':
            return false;
        case KEY_LEFT:
            player->x -= 1;
            break;
        case KEY_RIGHT:
            player->x += 1;
            break;
        case KEY_UP:
            player->y -= 1;
            break;
        case KEY_DOWN:
            player->y += 1;
            break;
    }
    check_hit(&old, player);
    if (player->m_points <= 0)
        return false;
    return true;
}

int main(int argc, char *argv[]) {
    Player player;
    init_game(&player);
    initscr();
    noecho();
    curs_set(FALSE);
    cbreak();
    keypad(stdscr, TRUE);

    int running = TRUE;
    draw(&player);
    refresh();
    while (running) {
        if (!do_input(&player))
            break;
        clear();
        draw(&player);
        refresh();
    }
    endwin();
    printf("Game Over!  Score: %d\n", player.m_points);
    return 0;
}