git.sur5r.net Git - c128-kasse/blob - credit_manager.c

   1 #include <conio.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 #include "config.h"
   7 #include "general.h"
   8
   9 char *filter = NULL;
  10 BYTE filter_len;
  11
  12 void print_credit_screen() {
  13         BYTE i = 0;
  14         clrscr();
  15         printf("C128-Kassenprogramm: Credit Manager\n\n");
  16         for (; i < num_credit_items; ++i)
  17                 if (filter == NULL || strncmp(credits[i].nickname, filter, filter_len) == 0)
  18                         printf("Guthaben %s: %d Cents\n", credits[i].nickname, credits[i].credit);
  19         printf("\nBefehle: n) Neues Guthaben f) Filtern z) Zurueck\n");
  20 }
  21
  22 /* Guthabenverwalter */
  23 void credit_manager() {
  24         int negative = 1;
  25         BYTE c;
  26         char *nickname, *credits_input;
  27         /* credits_int is a stupid name, but overlaps with struct credits_t credits; else */
  28         int credits_int;
  29         while (1) {
  30                 print_credit_screen();
  31                 c = getchar();
  32                 if (c == 'n') {
  33                         printf("Nickname eingeben:\n");
  34                         nickname = get_input();
  35                         if (nickname[0] == '\0') {
  36                                 free(nickname);
  37                                 continue;
  38                         }
  39                         printf("\nGuthaben eingeben:\n");
  40                         credits_input = get_input();
  41                         if (credits_input[0] == '\0') {
  42                                 free(credits_input);
  43                                 continue;
  44                         }
  45                         if (credits_input[0] == '-') {
  46                                 negative = -1;
  47                                 ++credits_input;
  48                         }
  49                         credits_int = atoi(credits_input) * negative;
  50                         if (credits_int > 0) {
  51                                 credits[num_credit_items].nickname = nickname;
  52                                 credits[num_credit_items].credit = credits_int;
  53                                 ++num_credit_items;
  54                         }
  55                         if (negative == -1)
  56                                 --credits_input;
  57                         free(credits_input);
  58                 } else if (c == 'f') {
  59                         printf("Filter eingeben:\n");
  60                         if (filter != NULL)
  61                                 free(filter);
  62                         filter = get_input();
  63                         if (filter[0] == '0') {
  64                                 free(filter);
  65                                 filter = NULL;
  66                         } else filter_len = strlen(filter);
  67                 } else if (c == 'z' || c == 'q')
  68                         break;
  69         }
  70 }