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mirror of https://git.zap.org.au/git/trader.git synced 2024-12-04 14:46:45 -05:00

Implement the main part of exchange_stock()

This commit is contained in:
John Zaitseff 2011-07-18 20:16:55 +10:00
parent c686d2f548
commit ccd451cf5c

View File

@ -32,11 +32,222 @@
#include "trader.h" #include "trader.h"
/************************************************************************
* Internal function declarations *
************************************************************************/
void visit_bank (void);
void trade_shares (int num, bool *bid_used);
/************************************************************************ /************************************************************************
* Stock Exchange function definitions * * Stock Exchange function definitions *
************************************************************************/ ************************************************************************/
/*-----------------------------------------------------------------------
Function: exchange_stock - Visit the Interstellar Stock Exchange
Arguments: (none)
Returns: (nothing)
This function allows the current player (in current_player) to buy,
sell and bid for shares in companies that appear on the galaxy map.
*/
void exchange_stock (void) void exchange_stock (void)
{
selection_t selection = SEL_NONE;
bool bid_used = false;
bool all_off_map;
int i, line;
if (quit_selected || abort_game || ! player[current_player].in_game) {
return;
}
newtxwin(17, 80, LINE_OFFSET + 1, COL_CENTER(80));
while (selection != SEL_EXIT) {
selection = SEL_NONE;
// Display (or refresh) the Stock Exchange window
wbkgd(curwin, ATTR_NORMAL_WINDOW);
werase(curwin);
box(curwin, 0, 0);
center(curwin, 1, ATTR_WINDOW_TITLE, " Interstellar Stock Exchange ");
center2(curwin, 2, ATTR_NORMAL_WINDOW, ATTR_HIGHLIGHT_STR, "Player: ",
"%s", player[current_player].name);
all_off_map = true;
for (i = 0; i < MAX_COMPANIES; i++) {
if (company[i].on_map) {
all_off_map = false;
break;
}
}
if (all_off_map) {
center(curwin, 8, ATTR_NORMAL_WINDOW, "No companies on the map");
} else {
char *buf = malloc(BUFSIZE);
if (buf == NULL) {
err_exit("out of memory");
}
// Handle the locale's currency symbol
struct lconv *lc = localeconv();
assert(lc != NULL);
snprintf(buf, BUFSIZE, "share (%s)", lc->currency_symbol);
wattrset(curwin, ATTR_WINDOW_SUBTITLE);
mvwprintw(curwin, 4, 2, " %-22s %10s %10s %12s %10s ",
"", "Shares", "Shares", "Price per", "");
mvwprintw(curwin, 5, 2, " %-22s %10s %10s %12s %10s ",
"Company", "issued", "left", buf, "Return (%)");
wattrset(curwin, ATTR_NORMAL_WINDOW);
for (line = 6, i = 0; i < MAX_COMPANIES; i++) {
if (company[i].on_map) {
mvwaddch(curwin, line, 2, PRINTABLE_MAP_VAL(COMPANY_TO_MAP(i)) |
ATTR_MAP_CHOICE);
strfmon(buf, BUFSIZE, "%!12n", company[i].share_price);
mvwprintw(curwin, line, 4, "%-22s %'10ld %'10ld %12s %10.2f ",
company[i].name, company[i].stock_issued,
company[i].max_stock - company[i].stock_issued,
buf, company[i].share_return * 100.0);
line++;
}
}
free(buf);
}
wrefresh(curwin);
// Show menu of choices for the player
newtxwin(6, 80, LINE_OFFSET + 18, COL_CENTER(80));
wbkgd(curwin, ATTR_NORMAL_WINDOW);
box(curwin, 0, 0);
wmove(curwin, 3, 2);
attrpr(curwin, ATTR_KEYCODE_STR, "<1>");
waddstr(curwin, " Display stock portfolio");
wmove(curwin, 4, 2);
attrpr(curwin, ATTR_KEYCODE_STR, "<2>");
waddstr(curwin, " Display galaxy map");
wmove(curwin, 3, 40);
attrpr(curwin, ATTR_KEYCODE_STR, "<3>");
waddstr(curwin, " Visit the Trading Bank");
wmove(curwin, 4, 40);
attrpr(curwin, ATTR_KEYCODE_STR, "<4>");
waddstr(curwin, " Exit the Stock Exchange");
mvwaddstr(curwin, 1, 2, " Enter selection ");
waddstr(curwin, "[");
attrpr(curwin, ATTR_HIGHLIGHT_STR, "Company letter");
waddstr(curwin, "/");
attrpr(curwin, ATTR_KEYCODE_STR, "1");
waddstr(curwin, "-");
attrpr(curwin, ATTR_KEYCODE_STR, "4");
waddstr(curwin, "]: ");
curs_set(CURS_ON);
wrefresh(curwin);
// Get the actual selection made by the player
while (selection == SEL_NONE) {
int key = toupper(gettxchar(curwin));
if (IS_COMPANY_KEY(key)) {
if (company[KEY_TO_COMPANY(key)].on_map) {
selection = KEY_TO_COMPANY(key);
} else {
beep();
}
} else {
switch (key) {
case '1':
curs_set(CURS_OFF);
show_status(current_player);
curs_set(CURS_ON);
break;
case '2':
curs_set(CURS_OFF);
show_map(true);
curs_set(CURS_ON);
break;
case '3':
selection = SEL_BANK;
break;
case '4':
case ' ':
selection = SEL_EXIT;
break;
default:
beep();
break;
}
}
}
curs_set(CURS_OFF);
deltxwin(); // "Enter selection" window
txrefresh();
if (selection == SEL_BANK) {
// Visit the Interstellar Trading Bank
visit_bank();
} else if (selection == SEL_EXIT) {
// Exit the Stock Exchange: nothing more to do
;
} else {
trade_shares(selection, &bid_used);
}
}
deltxwin(); // "Stock Exchange" window
txrefresh();
}
/*-----------------------------------------------------------------------
Function: visit_bank - Visit the Interstellar Trading Bank
Arguments: (none)
Returns: (nothing)
This function allows the current player to borrow or repay money from
the Interstellar Trading Bank.
*/
void visit_bank (void)
{ {
// @@@ To be written // @@@ To be written
} }
/*-----------------------------------------------------------------------
Function: trade_stock - Trade stock in a particular company
Arguments: num - Company with which to trade
bid_used - Has the player used up their bid?
Returns: (nothing)
This function allows the current player to buy and sell stock in
company num. The variable *bid_used is set to true if the player tries
to bid for more shares to be released by the company.
*/
void trade_shares (int num, bool *bid_used)
{
assert(num >= 0 && num < MAX_COMPANIES);
// @@@ To be written
}