/*
* RGB2R-C128-Kassenprogramm
- * (c) 2007 phil_fry, sECuRE, sur5r
+ * (c) 2007-2008 phil_fry, sECuRE, sur5r
* See LICENSE for license information
*
*/
+#define _IS_KASSE
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
// drucker 4 oder 5
// graphic 4,0,10
-char print_buffer[81];
+/* NOTE: undocumented function which scratches files
+ We need to use this function because linking unistd.h
+ makes our program break at runtime.
+ */
+unsigned char __fastcall__ _sysremove(const char *name);
+
+static void sane_exit() {
+ save_items();
+ save_credits();
+ exit(1);
+}
/* Hauptbildschirm ausgeben */
static void print_screen() {
char profit[10];
clrscr();
if (format_euro(profit, 10, money) == NULL) {
- cprintf("Einname %ld konnte nicht umgerechnet werden\r\n", money);
+ cprintf("Einnahme %ld konnte nicht umgerechnet werden\r\n", money);
exit(1);
}
cprintf("C128-Kassenprogramm (phil_fry, sECuRE, sur5r)\r\
i, status.status[i].item_name, status.status[i].price, status.status[i].times_sold);
cprintf("\r\nBefehle: s) Daten sichern d) Drucken umschalten\r\
g) Guthabenverwaltung z) Zeit setzen\r\
-n) Neues Getraenk q) Beenden\r\n");
+f) Freitext verkaufen q) Beenden\r\n");
}
static void log_file(const char *s) {
- BYTE c = cbm_open((BYTE)8, (BYTE)8, (BYTE)1, "log");
- if (c != 0) {
+ /* A log-entry has usually 50 bytes, so we take 64 bytes.
+ Because files are wrapped (log.0, log.1, ...) every 100
+ lines, we don't need more than 100 * 64 bytes. */
+ char *buffer = malloc(sizeof(char) * 64 * 100);
+ char filename[8];
+ int read = 0;
+ unsigned int c;
+ if (buffer == NULL) {
+ cprintf("No memory available\n");
+ }
+ buffer[0] = '\0';
+ if (((++log_lines_written) % 100) == 0)
+ log_num++;
+ sprintf(filename, "log-%d", log_num);
+ /* Don't read log if there were no lines written before */
+ if (log_lines_written != 1) {
+ if ((c = cbm_open((BYTE)8, (BYTE)8, (BYTE)0, filename)) != 0) {
+ c128_perror(c, "cbm_open(log)");
+ sane_exit();
+ }
+ read = cbm_read((BYTE)8, buffer, sizeof(char) * 64 * 100);
+ cbm_close((BYTE)8);
+ _sysremove(filename);
+ }
+ if ((c = cbm_open((BYTE)8, (BYTE)8, (BYTE)1, filename)) != 0) {
c128_perror(c, "cbm_open(log)");
- save_items();
- save_credits();
- exit(1);
+ sane_exit();
}
- c = cbm_write((BYTE)8, s, strlen(s));
- if (c != strlen(s)) {
- cprintf("Could not save logfile, please make sure the floppy is not full!\n");
- save_items();
- save_credits();
- exit(1);
+ if (read < 0) {
+ cprintf("Could not read existing logfile (read returned %d)\n", read);
+ sane_exit();
+ }
+ strcpy(buffer+read, s);
+ c = cbm_write((BYTE)8, buffer, read+strlen(s));
+ if (c != (read+strlen(s))) {
+ cprintf("Could not save logfile (wrote %d bytes, wanted %d bytes), please make sure the floppy is not full!\n", c, (read+strlen(s)));
+ sane_exit();
}
cbm_close((BYTE)8);
+ free(buffer);
}
-/* Druckt eine entsprechende Zeile aus */
-static void print_log(BYTE n, int einheiten, char *nickname) {
- BYTE c;
+static char retry_or_quit() {
+ char *c;
+ do {
+ cprintf("\r\nr)etry or q)uit?\r\n");
+ c = get_input();
+ } while ((*c != 'r') && (*c != 'q'));
+ return *c;
+}
+
+/* Prints a line and logs it to file */
+static void print_log(char *name, int item_price, int einheiten, char *nickname, char *rest) {
char *time = get_time();
char price[10];
/* Format:
- Transaction-ID (Anzahl verkaufter Einträge, inklusive des zu druckenden!)
- Uhrzeit
- Eintragname (= Getränk)
- Preis (in Cents)
- Anzahl
- Nickname (falls es vom Guthaben abgezogen wird)
+ Transaction-ID (Anzahl verkaufter Einträge, inklusive des zu druckenden!) -- 6-stellig
+ Uhrzeit -- 8-stellig
+ Eintragname (= Getränk) -- 9-stellig
+ Preis (in Cents) -- 7-stellig
+ Anzahl -- 2-stellig
+ Nickname (falls es vom Guthaben abgezogen wird) -- 10-stellig
+ restguthaben (9-stellig)
+
+ + 7 leerzeichen
+ --> 48 zeichen
*/
- if (format_euro(price, 10, status.status[n].price) == NULL) {
- cprintf("Preis %d konnte nicht umgerechnet werden\r\n", status.status[n].price);
+ if (format_euro(price, 10, item_price) == NULL) {
+ cprintf("Preis %d konnte nicht umgerechnet werden\r\n", item_price);
exit(1);
}
-
- sprintf(print_buffer, "[%lu] %s - %s - %s - %d - an %s\r\n",
- items_sold, time, status.status[n].item_name, price,
- einheiten, (nickname != NULL ? nickname : "Unbekannt"));
+
+ sprintf(print_buffer, "%c[%lu] %s - %-9s - %s - r %s - %d - an %s\r", 17,
+ items_sold, time, name, price, rest,
+ einheiten, (*nickname != '\0' ? nickname : "Unbekannt"));
+ print_the_buffer();
+}
+
+void print_the_buffer() {
+ BYTE c;
+RETRY:
c = cbm_open((BYTE)4, (BYTE)4, (BYTE)0, NULL);
if (c != 0) {
c128_perror(c, "cbm_open(printer)");
- save_items();
- save_credits();
- exit(1);
+ if (retry_or_quit() == 'q')
+ sane_exit();
+
+ goto RETRY;
}
c = cbm_write((BYTE)4, print_buffer, strlen(print_buffer));
if (c != strlen(print_buffer)) {
c128_perror(c, "write(printer)");
- save_items();
- save_credits();
- exit(1);
+ if (retry_or_quit() == 'q') {
+ save_items();
+ save_credits();
+ exit(1);
+ }
+ goto RETRY;
}
cbm_close((BYTE)4);
log_file(print_buffer);
}
-/* Dialog, der einen durch's Abrechnen der Einträge führt */
-void buy(BYTE n) {
+/* dialog which is called for each bought item */
+static signed int buy(char *name, unsigned int price) {
int negative = 1;
char entered[5] = {'1', 0, 0, 0, 0};
BYTE i = 0, matches = 0;
BYTE c, nickname_len;
int einheiten;
- char *nickname;
+ char *input;
+ char nickname[11];
+ char rest[9];
struct credits_t *credit;
- if (status.status[n].item_name == NULL) {
- cprintf("FEHLER: Diese Einheit existiert nicht.\r\n");
- return;
- }
- cprintf("Wieviel Einheiten \"%s\"? [1] \r\n", status.status[n].item_name);
+ memset(rest, ' ', sizeof(rest));
+ rest[8] = '\0';
+
+ cprintf("Wieviel Einheiten \"%s\"? [1] \r\n", name);
while (1) {
c = getchar();
if (c == 13)
else if (c == 27) {
cprintf("Kauf abgebrochen, druecke RETURN...\r\n");
get_input();
- return;
+ return 1;
} else if (c == '-' && i == 0)
negative = -1;
else if (c > 47 && c < 58)
einheiten = atoi(entered) * negative;
toggle_videomode();
- cprintf("%dx %s fuer ", einheiten, status.status[n].item_name);
+ cprintf("%dx %s fuer ", einheiten, name);
toggle_videomode();
cprintf("\r\nAuf ein Guthaben kaufen? Wenn ja, Nickname eingeben:\r\n");
- nickname = get_input();
- toggle_videomode();
- cprintf("%s\r\n", nickname);
- toggle_videomode();
+ input = get_input();
+ strncpy(nickname, input, 11);
+ if (*nickname != '\0') {
+ toggle_videomode();
+ cprintf("%s\r\n", nickname);
+ toggle_videomode();
+ }
if (nickname != NULL && *nickname != '\0' && *nickname != 32) {
nickname_len = strlen(nickname);
* to NULL if no such credit could be found */
credit = find_credit(nickname);
if (credit != NULL) {
- if ((signed int)credit->credit < ((signed int)status.status[n].price * einheiten)) {
+ if ((signed int)credit->credit < ((signed int)price * einheiten)) {
cprintf("Sorry, %s hat nicht genug Geld :-(\r\n", nickname);
- return;
+ get_input();
+ return 0;
+ }
+ /* substract money */
+ credit->credit -= (price * einheiten);
+
+ if (format_euro(rest, 10, credit->credit) == NULL) {
+ cprintf("Preis %d konnte nicht umgerechnet werden\r\n", credit->credit);
+ exit(1);
}
- /* Geld abziehen */
- credit->credit -= (status.status[n].price * einheiten);
- cprintf("\r\nVerbleibendes Guthaben fuer %s: %d Cents. Druecke RETURN...\r\n",
- nickname, credit->credit);
+
+ cprintf("\r\nVerbleibendes Guthaben fuer %s: %s. Druecke RETURN...\r\n",
+ nickname, rest);
toggle_videomode();
- cprintf("\r\nDein verbleibendes Guthaben betraegt %d Cents.\r\n", credit->credit);
+ cprintf("\r\nDein verbleibendes Guthaben betraegt %s.\r\n", rest);
toggle_videomode();
get_input();
matches++;
} else {
cprintf("\r\nNickname nicht gefunden in der Guthabenverwaltung! Abbruch, druecke RETURN...\r\n");
get_input();
- return;
+ return 0;
}
} else {
/* Ensure that nickname is NULL if it's empty because it's used in print_log */
- nickname = NULL;
+ *nickname = '\0';
}
- status.status[n].times_sold += einheiten;
- money += status.status[n].price * einheiten;
+ money += price * einheiten;
items_sold += einheiten;
if (printing == 1)
- print_log(n, einheiten, nickname);
+ print_log(name, price, einheiten, nickname, rest);
+
+ return einheiten;
+}
+
+void buy_stock(BYTE n) {
+ if (n >= status.num_items || status.status[n].item_name == NULL) {
+ cprintf("FEHLER: Diese Einheit existiert nicht.\r\n");
+ get_input();
+ return;
+ }
+
+ status.status[n].times_sold += buy(status.status[n].item_name, status.status[n].price);
+}
+
+void buy_custom() {
+ BYTE c = 0, i = 0;
+ int negative = 1;
+ char entered[5] = {'1', 0, 0, 0, 0};
+ char *input, name[20];
+ int price;
+
+ clrscr();
+ memset(name, '\0', 20);
+ cprintf("\r\nWas soll gekauft werden?\r\n");
+ input = get_input();
+ strncpy(name, input, 20);
+ if (*name == '\0')
+ return;
+
+ cprintf("\r\nWie teuer ist \"%s\" (in cents)?\r\n", name);
+ while (1) {
+ c = getchar();
+ if (c == 13)
+ break;
+ else if (c == 27) {
+ cprintf("Kauf abgebrochen, druecke RETURN...\r\n");
+ get_input();
+ return;
+ } else if (c == '-' && i == 0)
+ negative = -1;
+ else if (c > 47 && c < 58)
+ entered[i++] = c;
+ }
+ price = atoi(entered) * negative;
+
+ cprintf("\r\n");
+
+ buy(name, price);
}
void set_time_interactive() {
set_time(tp1, tp2, tp3);
time = get_time();
- cprintf("Zeit gesetzt: %s\r\n", time);
+ cprintf("\r\nZeit gesetzt: %s\r\n", time);
}
int main() {
char *c;
+
if (VIDEOMODE == 40)
toggle_videomode();
- /* Zeit erstmalig setzen */
+ clrscr();
+ /* Set time initially, c128 doesn't know it */
set_time_interactive();
+
POKE(216, 255);
- /* Variablen zurechtbiegen */
- credits.num_items = 0;
- status.num_items = 0;
- /* Konfigurationsdatei laden */
+
+ /* Load configuration */
load_config();
- /* Einträge (=Getränke) und Zustand laden */
+ cprintf("got %d logfiles\r\n", log_num);
+
+ /* Load items (= drinks) */
load_items();
- /* Guthaben laden */
+ /* Load credits */
load_credits();
while (1) {
- /* Bildschirm anzeigen */
print_screen();
- /* Tastatureingaben abfragen */
c = get_input();
- /* und eventuell weitere Dialoge anzeigen */
+ /* ...display dialogs eventually */
if (*c > 47 && *c < 58) {
- buy((*c) - 48);
+ buy_stock((*c) - 48);
toggle_videomode();
clrscr();
toggle_videomode();
- }else if (*c == 's') {
- /* Zustandsdatei schreiben */
+ } else if (*c == 'f') {
+ buy_custom();
+ toggle_videomode();
+ clrscr();
+ toggle_videomode();
+ } else if (*c == 's') {
save_items();
save_credits();
cprintf("Statefile/Creditfile gesichert, druecke RETURN...\r\n");
get_input();
} else if (*c == 'd') {
- /* Drucken an- oder ausschalten */
+ /* enable/disable printing */
printing = (printing == 1 ? 0 : 1);
cprintf("Drucken ist nun %s, druecke RETURN...\r\n",
(printing == 1 ? "eingeschaltet" : "ausgeschaltet"));
get_input();
} else if (*c == 'g') {
- /* Guthabenverwalter aufrufen */
credit_manager();
} else if (*c == 'z') {
- /* Zeit setzen */
set_time_interactive();
- } else if (*c == 'n') {
- strcpy(status.status[status.num_items].item_name, "mate");
- status.status[status.num_items].price = 23;
- status.status[status.num_items].times_sold = 5;
- status.num_items++;
} else if (*c == 'q')
break;
}
cprintf("BYEBYE\r\n");
+
+ return 0;
}
projects / c128-kasse / blobdiff