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annotate arogue5/trader.c @ 248:182e26224f92 rel2016.06

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README.txt: additions and clarifications.
author John "Elwin" Edwards
date Sun, 29 May 2016 17:05:38 -0400
parents 56e748983fa8
children ad2570b5b21f
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1 /*
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2 * Anything to do with trading posts
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Super-Rogue"
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9 * Copyright (C) 1984 Robert D. Kindelberger
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include "curses.h"
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16 #include "rogue.h"
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17 #include <ctype.h>
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18 #include <string.h>
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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 char *typ_name(struct object *obj);
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23
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24
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25 /*
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26 * buy_it:
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27 * Buy the item on which the hero stands
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28 */
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29 void
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30 buy_it(void)
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31 {
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32 reg int wh;
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33 struct linked_list *item;
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34
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35 if (purse <= 0) {
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36 msg("You have no money.");
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37 return;
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38 }
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39 if (curprice < 0) { /* if not yet priced */
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40 wh = price_it();
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41 if (!wh) /* nothing to price */
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42 return;
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43 msg("Do you want to buy it? ");
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44 do {
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45 wh = tolower(readchar());
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46 if (wh == ESCAPE || wh == 'n') {
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47 msg("");
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48 return;
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49 }
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50 } until(wh == 'y');
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51 }
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52 mpos = 0;
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53 if (curprice > purse) {
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54 msg("You can't afford to buy that %s !",curpurch);
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55 return;
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56 }
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57 /*
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58 * See if the hero has done all his transacting
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59 */
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60 if (!open_market())
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61 return;
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62 /*
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63 * The hero bought the item here
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64 */
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65 item = find_obj(hero.y, hero.x);
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66 mpos = 0;
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67 if (add_pack(NULL,TRUE,&item)) { /* try to put it in his pack */
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68 purse -= curprice; /* take his money */
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69 ++trader; /* another transaction */
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70 trans_line(); /* show remaining deals */
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71 curprice = -1; /* reset stuff */
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72 curpurch[0] = 0;
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73 whatis (item); /* identify it after purchase */
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74 (OBJPTR(item))->o_flags &= ~ISPOST; /* turn off ISPOST */
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75 msg("%s", inv_name(OBJPTR(item), TRUE));
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76 }
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77 }
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78
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79 /*
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80 * do_post:
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81 * Put a trading post room and stuff on the screen
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82 */
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83 void
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84 do_post(void)
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85 {
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86 coord tp;
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87 reg int i;
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88 reg struct room *rp;
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89 reg struct object *op;
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90 reg struct linked_list *ll;
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91
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92 o_free_list(lvl_obj); /* throw old items away */
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93
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94 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++)
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95 rp->r_flags = ISGONE; /* kill all rooms */
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96
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97 rp = &rooms[0]; /* point to only room */
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98 rp->r_flags = 0; /* this room NOT gone */
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99 rp->r_max.x = 40;
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100 rp->r_max.y = 10; /* 10 * 40 room */
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101 rp->r_pos.x = (COLS - rp->r_max.x) / 2; /* center horizontal */
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102 rp->r_pos.y = 1; /* 2nd line */