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annotate srogue/trader.c @ 306:057c5114e244

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Super-Rogue: fix some out-of-range constants. Constants K_ARROW etc., for causes of death other than monsters, are in the 240-255 range. They were often passed to functions taking char, which is usually signed, making the values out of range. The function declarations have been changed to unsigned char, which is also the type used by the scoreboard code.
author John "Elwin" Edwards
date Sat, 17 Apr 2021 15:41:12 -0400
parents e52a8a7ad4c5
children
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1 /*
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2 * Anything to do with trading posts & mazes
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3 *
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4 * @(#)trader.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include <stdlib.h>
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14 #include <string.h>
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15 #include "rogue.h"
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16 #include "rogue.ext"
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17
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18 #define NOTPRICED -1
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19
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20 bool open_market(void);
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21 void trans_line(void);
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22 void draw_maze(void);
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23 int findcells(int y, int x);
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24 void rmwall(int newy, int newx, int oldy, int oldx);
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25 void crankout(void);
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26
36
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27 /*
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28 * do_post:
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29 * Put a trading post room and stuff on the screen
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30 */
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31 void
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32 do_post(void)
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33 {
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34 struct coord tp;
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35 reg int i;
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36 reg struct room *rp;
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37 reg struct object *op;
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38 reg struct linked_list *ll;
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39
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40 free_list(lvl_obj); /* throw old items away */
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41
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42 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
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43 rp->r_goldval = 0; /* no gold */
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44 rp->r_nexits = 0; /* no exits */
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45 rp->r_flags = ISGONE; /* kill all rooms */
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46 }
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47 rp = &rooms[0]; /* point to only room */
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48 rp->r_flags = 0; /* this room NOT gone */
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49 rp->r_max.x = 40;
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50 rp->r_max.y = 10; /* 10 * 40 room */
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51 rp->r_pos.x = (COLS - rp->r_max.x) / 2; /* center horizontal */
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52 rp->r_pos.y = 1; /* 2nd line */
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53 draw_room(rp); /* draw the only room */
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54 i = roll(4,10); /* 10 to 40 items */
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55 for (; i > 0 ; i--) { /* place all the items */
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56 ll = new_thing(FALSE, ANYTHING); /* get something */
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57 attach(lvl_obj, ll);
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58 op = OBJPTR(ll);
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59 setoflg(op, ISPOST); /* object in trading post */
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60 tp = *rnd_pos(rp);
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61 op->o_pos = tp;
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62 mvaddch(tp.y,tp.x,op->o_type);
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63 }
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64 trader = 0;
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65 wmove(cw,12,0);
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66 waddstr(cw,"Welcome to Friendly Fiend's Flea Market\n\r");
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67 waddstr(cw,"=======================================\n\r");
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68 waddstr(cw,"$: Prices object that you stand upon.\n\r");
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69 waddstr(cw,"#: Buys the object that you stand upon.\n\r");
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70 waddstr(cw,"%: Trades in something in your pack for gold.\n\r");
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71 trans_line();
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72 }
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73
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74 /*
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75 * price_it:
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76 * Price the object that the hero stands on
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77 */
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78 bool
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79 price_it(void)
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80 {
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81 static char *bargain[] = {
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82 "great bargain",
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83 "quality product",
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84 "exceptional find",
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85 };
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86 reg struct linked_list *item;
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87 reg struct object *obj;
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88 reg int worth;
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89
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90 if (!open_market()) /* after buying hours */
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91 return FALSE;
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92 if ((item = find_obj(hero.y,hero.x)) == NULL)
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93 return FALSE;
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94 obj = OBJPTR(item);
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95 if (curprice == NOTPRICED) {
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96 worth = get_worth(obj);
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97 worth += 50 - rnd(100);
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98 if (worth < 25)
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99 worth = 25;
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100 worth *= 3; /* slightly expensive */
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101 curprice = worth; /* save price */
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