storybook/rust-ffi-demo/demo.c

#include <stdio.h>
#include <stdint.h>

#include "demo.h"

const char* story = "START\n"
  "One day, Dane took a really big shit!\n"
  "GOTO DIALOG\n"
	"DIALOG\n"
	"\"Wow, that was a really big shit!\"\n"
	"1) Die [DIE]\n"
	"2) Don't die <Strength 100+> [DONT_DIE] (-1 Honor)\n"
	"DONT_DIE\n"
	"But he died anyways.\n"
	"GOTO DIE\n"
  "DIE\n"
  "Then he died. Fuck you, Dane!\n"
  "THE END\n";

int main() {
  Book *book = storybook_make_book(story);

  while(!storybook_is_ended(book)) {
    char* s = storybook_get_body(book);
    printf("%s\n", s);
    storybook_free_string(s);

    enum footer footer = storybook_get_footer(book);
    switch (footer) {
    case (FOOTER_ENDING):
      printf("The End\n");
      storybook_advance_nooption(book);
      break;
    case (FOOTER_GOTO):
      storybook_advance_nooption(book);
      break;
    case (FOOTER_CHOICES):
	    int n = storybook_get_num_choices(book);
	    for (int i = 1; i <= n; i++) {
		    Choice* choice = storybook_get_choice(book, i);
		    printf("%d) %s\n", choice->option, choice->flavor);
		    storybook_free_choice(choice);
	    }
	    uint32_t option;
	    printf("Make a choice: ");
	    scanf("%d", &option);
	    storybook_advance_option(book, option);
    }
  }
  
  storybook_free_book(book);
  return 0;
}