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https://git.zap.org.au/git/trader.git
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Implement the visit_bank() function
This commit is contained in:
John Zaitseff
parent
8b504b645d
commit
e38c151752
212
src/exch.c
212
src/exch.c
@ -146,7 +146,7 @@ void exchange_stock (void)
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attrpr(curwin, ATTR_KEYCODE_STR, "<4>");
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waddstr(curwin, " Exit the Stock Exchange");
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mvwaddstr(curwin, 1, 2, " Enter selection ");
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mvwaddstr(curwin, 1, 18, "Enter selection ");
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waddstr(curwin, "[");
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attrpr(curwin, ATTR_HIGHLIGHT_STR, "Company letter");
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waddstr(curwin, "/");
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@ -230,7 +230,215 @@ void exchange_stock (void)
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void visit_bank (void)
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{
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// @@@ To be written
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double credit_limit;
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int key;
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bool done;
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double val, max;
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char *buf;
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struct lconv *lc = localeconv();
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assert(lc != NULL);
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buf = malloc(BUFSIZE);
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if (buf == NULL) {
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err_exit("out of memory");
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}
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credit_limit = (total_value(current_player) - player[current_player].debt)
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* CREDIT_LIMIT_RATE;
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if (credit_limit < 0.0) {
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credit_limit = 0.0;
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}
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// Show the informational part of the Bank
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newtxwin(10, 76, LINE_OFFSET + 5, COL_CENTER(76));
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wbkgd(curwin, ATTR_NORMAL_WINDOW);
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box(curwin, 0, 0);
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center(curwin, 1, ATTR_WINDOW_TITLE, " Interstellar Trading Bank ");
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strfmon(buf, BUFSIZE, "%18n", player[current_player].cash);
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center2(curwin, 3, ATTR_NORMAL_WINDOW, ATTR_HIGHLIGHT_STR,
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"Current cash: ", " %s ", buf);
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strfmon(buf, BUFSIZE, "%18n", player[current_player].debt);
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center2(curwin, 4, ATTR_NORMAL_WINDOW, ATTR_HIGHLIGHT_STR,
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"Current debt: ", " %s ", buf);
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center2(curwin, 5, ATTR_NORMAL_WINDOW, ATTR_HIGHLIGHT_STR,
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"Interest rate: ", " %17.2f%% ", interest_rate * 100.0);
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strfmon(buf, BUFSIZE, "%18n", credit_limit);
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center2(curwin, 7, ATTR_HIGHLIGHT_STR, ATTR_WINDOW_TITLE,
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"Credit limit: ", " %s ", buf);
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wrefresh(curwin);
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// Show menu of choices for the player
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newtxwin(7, 76, LINE_OFFSET + 15, COL_CENTER(76));
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wbkgd(curwin, ATTR_NORMAL_WINDOW);
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box(curwin, 0, 0);
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center2(curwin, 3, ATTR_KEYCODE_STR, ATTR_NORMAL_WINDOW,
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"<1>", " Borrow money ");
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center2(curwin, 4, ATTR_KEYCODE_STR, ATTR_NORMAL_WINDOW,
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"<2>", " Repay debt ");
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center2(curwin, 5, ATTR_KEYCODE_STR, ATTR_NORMAL_WINDOW,
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"<3>", " Exit from the Bank");
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mvwaddstr(curwin, 1, 24, "Enter selection ");
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waddstr(curwin, "[");
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attrpr(curwin, ATTR_KEYCODE_STR, "1");
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waddstr(curwin, "-");
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attrpr(curwin, ATTR_KEYCODE_STR, "3");
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waddstr(curwin, "]: ");
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curs_set(CURS_ON);
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wrefresh(curwin);
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do {
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key = gettxchar(curwin);
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done = (key == '1' || key == '2' || key == '3' || key == ' ');
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if (! done) {
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beep();
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}
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} while (! done);
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curs_set(CURS_OFF);
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wechochar(curwin, key | A_BOLD);
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switch (key) {
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case '1':
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// Borrow money from the Bank
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if (credit_limit == 0.0) {
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newtxwin(7, 50, LINE_OFFSET + 8, COL_CENTER(50));
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wbkgd(curwin, ATTR_ERROR_WINDOW);
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box(curwin, 0, 0);
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center(curwin, 1, ATTR_ERROR_TITLE, " Insufficient Credit Limit ");
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center(curwin, 3, ATTR_ERROR_STR,
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"The Bank will not lend you any more money");
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wait_for_key(curwin, 5, ATTR_WAITERROR_STR);
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deltxwin();
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} else {
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int x, y, n;
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int ret;
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wbkgd(curwin, ATTR_NORMAL_WINDOW);
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werase(curwin);
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box(curwin, 0, 0);
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mvwprintw(curwin, 3, 10, "How much do you wish to borrow? ");
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wattron(curwin, A_BOLD);
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if (lc->p_cs_precedes == 1) {
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wprintw(curwin, "%s%s", lc->currency_symbol,
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(lc->p_sep_by_space == 1) ? " " : "");
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n = 10;
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} else {
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getyx(curwin, y, x);
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n = strlen(lc->currency_symbol) + 10 + (lc->p_sep_by_space == 1);
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mvwprintw(curwin, y, getmaxx(curwin) - n, "%s%s",
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(lc->p_sep_by_space == 1) ? " " : "",
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lc->currency_symbol);
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wmove(curwin, y, x);
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}
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wattroff(curwin, A_BOLD);
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x = getcurx(curwin);
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ret = gettxdouble(curwin, &val, 0.0, credit_limit +
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ROUNDING_AMOUNT, 0.0, credit_limit, 3, x,
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getmaxx(curwin) - x - n, ATTR_INPUT_FIELD);
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if (ret == OK) {
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player[current_player].cash += val;
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player[current_player].debt += val * (interest_rate + 1.0);
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}
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}
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break;
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case '2':
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// Repay a debt
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if (player[current_player].debt == 0.0) {
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newtxwin(7, 50, LINE_OFFSET + 8, COL_CENTER(50));
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wbkgd(curwin, ATTR_ERROR_WINDOW);
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box(curwin, 0, 0);
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center(curwin, 1, ATTR_ERROR_TITLE, " No Debt ");
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center(curwin, 3, ATTR_ERROR_STR, "You have no debt to repay");
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wait_for_key(curwin, 5, ATTR_WAITERROR_STR);
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deltxwin();
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} else if (player[current_player].cash == 0.0) {
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newtxwin(7, 60, LINE_OFFSET + 8, COL_CENTER(60));
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wbkgd(curwin, ATTR_ERROR_WINDOW);
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box(curwin, 0, 0);
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center(curwin, 1, ATTR_ERROR_TITLE, " No Cash ");
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center(curwin, 3, ATTR_ERROR_STR, "You have no cash with which to repay the debt!");
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wait_for_key(curwin, 5, ATTR_WAITERROR_STR);
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deltxwin();
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} else {
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int x, y, n;
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int ret;
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wbkgd(curwin, ATTR_NORMAL_WINDOW);
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werase(curwin);
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box(curwin, 0, 0);
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mvwprintw(curwin, 3, 10, "How much do you wish to repay? ");
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wattron(curwin, A_BOLD);
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if (lc->p_cs_precedes == 1) {
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wprintw(curwin, "%s%s", lc->currency_symbol,
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(lc->p_sep_by_space == 1) ? " " : "");
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n = 10;
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} else {
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getyx(curwin, y, x);
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n = strlen(lc->currency_symbol) + 10 + (lc->p_sep_by_space == 1);
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mvwprintw(curwin, y, getmaxx(curwin) - n, "%s%s",
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(lc->p_sep_by_space == 1) ? " " : "",
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lc->currency_symbol);
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wmove(curwin, y, x);
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}
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wattroff(curwin, A_BOLD);
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x = getcurx(curwin);
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max = MIN(player[current_player].cash + ROUNDING_AMOUNT,
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player[current_player].debt + ROUNDING_AMOUNT);
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ret = gettxdouble(curwin, &val, 0.0, max, 0.0, max, 3, x,
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getmaxx(curwin) - x - n, ATTR_INPUT_FIELD);
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if (ret == OK) {
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player[current_player].cash -= val;
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player[current_player].debt -= val;
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if (player[current_player].cash < ROUNDING_AMOUNT) {
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player[current_player].cash = 0.0;
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}
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if (player[current_player].debt < ROUNDING_AMOUNT) {
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player[current_player].debt = 0.0;
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}
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}
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}
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break;
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default:
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break;
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}
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deltxwin(); // "Enter selection" window
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deltxwin(); // Trading Bank window
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txrefresh();
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free(buf);
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}
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@ -82,6 +82,7 @@
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#define INTEREST_RATE_INC (0.65) /* 65% chance of above being an increment */
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#define MAX_INTEREST_RATE (0.30) /* Maximum interest rate */
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#define INTEREST_RATE_DIVIDER (1.5) /* Min. amount by which to divide if interest is too high */
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#define CREDIT_LIMIT_RATE (2.0) /* Multiplier for credit limit */
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#define ROUNDING_AMOUNT (0.01) /* Round off smaller amounts to zero */
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