Mercurial > hg > early-roguelike
annotate srogue/passages.c @ 217:94a0d9dd5ce1
Super-Rogue: convert to ANSI-style function declarations.
This fixes most of the build warnings.
author | John "Elwin" Edwards |
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date | Sun, 31 Jan 2016 13:45:07 -0500 |
parents | 7f5f5f1ba09c |
children | e52a8a7ad4c5 |
rev | line source |
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1 /* |
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2 * Draw the connecting passages |
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3 * |
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4 * @(#)passages.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 * Based on "Rogue: Exploring the Dungeons of Doom" |
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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12 * All rights reserved. |
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13 * |
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14 * See the file LICENSE.TXT for full copyright and licensing information. |
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15 */ |
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16 |
217
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17 #include <stdlib.h> |
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18 #include "rogue.h" |
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19 #include "rogue.ext" |
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20 |
217
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21 void conn(int r1, int r2); |
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22 void door(struct room *rm, struct coord *cp); |
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23 |
36
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24 /* |
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25 * do_passages: |
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26 * Draw all the passages on a level. |
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27 */ |
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28 |
217
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29 void |
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30 do_passages(void) |
36
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31 { |
183 | 32 reg struct rdes *r1, *r2 = NULL; |
36
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33 reg int i, j; |
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34 reg int roomcount; |
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35 static struct rdes { |
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36 bool conn[MAXROOMS]; /* possible to connect to room i */ |
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37 bool isconn[MAXROOMS]; /* connection was made to room i */ |
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38 bool ingraph; /* this room in graph already? */ |
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39 } rdes[MAXROOMS] = { |
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40 {{ 0, 1, 0, 1, 0, 0, 0, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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41 {{ 1, 0, 1, 0, 1, 0, 0, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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42 {{ 0, 1, 0, 0, 0, 1, 0, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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43 {{ 1, 0, 0, 0, 1, 0, 1, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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44 {{ 0, 1, 0, 1, 0, 1, 0, 1, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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45 {{ 0, 0, 1, 0, 1, 0, 0, 0, 1 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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46 {{ 0, 0, 0, 1, 0, 0, 0, 1, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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47 {{ 0, 0, 0, 0, 1, 0, 1, 0, 1 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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48 {{ 0, 0, 0, 0, 0, 1, 0, 1, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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49 }; |
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50 |
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51 /* |
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52 * reinitialize room graph description |
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53 */ |
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54 for (r1 = rdes; r1 < &rdes[MAXROOMS]; r1++) { |
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55 for (j = 0; j < MAXROOMS; j++) |
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56 r1->isconn[j] = FALSE; |
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57 r1->ingraph = FALSE; |
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58 } |
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59 |
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60 /* |
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61 * starting with one room, connect it to a random adjacent room and |
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62 * then pick a new room to start with. |
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63 */ |
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64 roomcount = 1; |
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65 r1 = &rdes[rnd(MAXROOMS)]; |
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66 r1->ingraph = TRUE; |
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67 do { |
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68 /* |
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69 * find a room to connect with |
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70 */ |
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71 j = 0; |
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72 for (i = 0; i < MAXROOMS; i++) |
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73 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0) |
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74 r2 = &rdes[i]; |
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75 /* |
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76 * if no adjacent rooms are outside the graph, pick a new room |
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77 * to look from |
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78 */ |
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79 if (j == 0) { |
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80 do { |
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81 r1 = &rdes[rnd(MAXROOMS)]; |
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82 } until (r1->ingraph); |
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83 } |
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84 /* |
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85 * otherwise, connect new room to the graph, and draw a tunnel |
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86 * to it |
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87 */ |
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88 else { |
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89 r2->ingraph = TRUE; |
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90 i = r1 - rdes; |
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91 j = r2 - rdes; |
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92 conn(i, j); |
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93 r1->isconn[j] = TRUE; |
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94 r2->isconn[i] = TRUE; |
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95 roomcount++; |
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96 } |
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97 } while (roomcount < MAXROOMS); |
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98 |
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99 /* |
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100 * attempt to add passages to the graph a random number of times so |
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101 * that there isn't just one unique passage through it. |
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102 */ |
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103 for (roomcount = rnd(5); roomcount > 0; roomcount--) { |
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104 r1 = &rdes[rnd(MAXROOMS)]; /* a random room to look from */ |
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105 /* |
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106 * find an adjacent room not already connected |
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107 */ |
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108 j = 0; |
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109 for (i = 0; i < MAXROOMS; i++) |
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110 if (r1->conn[i] && !r1->isconn[i] && rnd(++j) == 0) |
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111 r2 = &rdes[i]; |
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112 /* |
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113 * if there is one, connect it and look for the next added |
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114 * passage |
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115 */ |
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116 if (j != 0) { |
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117 i = r1 - rdes; |
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118 j = r2 - rdes; |
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119 conn(i, j); |
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120 r1->isconn[j] = TRUE; |
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121 r2->isconn[i] = TRUE; |
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122 } |
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123 } |
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124 } |
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125 |
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126 /* |
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127 * conn: |
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128 * Cconnect two rooms. |
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129 */ |
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130 |
217
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183
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131 void |
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183
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132 conn(int r1, int r2) |
36
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133 { |
183 | 134 reg struct room *rpf, *rpt = NULL; |
36
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135 reg char rmt, direc; |
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136 reg int distance, turn_spot, turn_distance, rm; |
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137 struct coord curr, turn_delta, spos, epos; |
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138 |
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139 if (r1 < r2) { |
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140 rm = r1; |
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141 if (r1 + 1 == r2) |
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142 direc = 'r'; |
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143 else |
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144 direc = 'd'; |
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145 } |
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146 else { |
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147 rm = r2; |
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148 if (r2 + 1 == r1) |
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149 direc = 'r'; |
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150 else |
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151 direc = 'd'; |
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152 } |
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153 rpf = &rooms[rm]; |
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154 /* |
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155 * Set up the movement variables, in two cases: |
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156 * first drawing one down. |
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157 */ |
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158 if (direc == 'd') { |
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159 rmt = rm + 3; /* room # of dest */ |
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160 rpt = &rooms[rmt]; /* room pointer of dest */ |
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161 delta.x = 0; /* direction of move */ |
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162 delta.y = 1; |
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163 spos.x = rpf->r_pos.x; /* start of move */ |
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164 spos.y = rpf->r_pos.y; |
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165 epos.x = rpt->r_pos.x; /* end of move */ |
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166 epos.y = rpt->r_pos.y; |
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167 if (!rf_on(rpf,ISGONE)) { /* if not gone pick door pos */ |
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168 spos.x += rnd(rpf->r_max.x-2)+1; |
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169 spos.y += rpf->r_max.y-1; |
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170 } |
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171 if (!rf_on(rpt,ISGONE)) |
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172 epos.x += rnd(rpt->r_max.x-2)+1; |
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173 distance = abs(spos.y - epos.y) - 1; /* distance to move */ |
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174 turn_delta.y = 0; /* direction to turn */ |
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175 turn_delta.x = (spos.x < epos.x ? 1 : -1); |
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176 turn_distance = abs(spos.x - epos.x); /* how far to turn */ |
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177 turn_spot = rnd(distance-1) + 1; /* where turn starts */ |
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178 } |
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179 else if (direc == 'r') { /* setup for moving right */ |
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180 rmt = rm + 1; |
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181 rpt = &rooms[rmt]; |
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182 delta.x = 1; |
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183 delta.y = 0; |
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184 spos.x = rpf->r_pos.x; |
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185 spos.y = rpf->r_pos.y; |
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186 epos.x = rpt->r_pos.x; |
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187 epos.y = rpt->r_pos.y; |
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188 if (!rf_on(rpf,ISGONE)) { |
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189 spos.x += rpf->r_max.x-1; |
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190 spos.y += rnd(rpf->r_max.y-2)+1; |
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191 } |
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192 if (!rf_on(rpt,ISGONE)) |
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193 epos.y += rnd(rpt->r_max.y-2)+1; |
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194 distance = abs(spos.x - epos.x) - 1; |
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195 turn_delta.y = (spos.y < epos.y ? 1 : -1); |
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196 turn_delta.x = 0; |
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197 turn_distance = abs(spos.y - epos.y); |
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198 turn_spot = rnd(distance-1) + 1; |
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199 } |
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200 else { |
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201 msg("Error in connection tables."); |
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202 } |
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203 /* |
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204 * Draw in the doors on either side of the passage |
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205 * or just put #'s if the rooms are gone. Set up |
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206 * pointers to the connected room. |
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207 */ |
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208 rpf->r_ptr[rpf->r_nexits] = rpt; |
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209 if (rf_on(rpf,ISGONE)) { |
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210 cmov(spos); |
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211 addch('#'); /* gone "from" room */ |
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212 } |
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213 else |
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214 door(rpf, &spos); /* add the door */ |
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215 rpt->r_ptr[rpt->r_nexits] = rpf; |
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216 if (rf_on(rpt,ISGONE)) { |
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217 cmov(epos); |
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218 addch('#'); /* gone "to" room */ |
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219 } |
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220 else |
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221 door(rpt, &epos); /* add door */ |
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222 /* |
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223 * Get ready to move... |
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224 */ |
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225 curr.x = spos.x; |
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226 curr.y = spos.y; |
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227 while(distance > 0) { |
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228 /* |
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229 * Move to new position |
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|
230 */ |
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231 curr.x += delta.x; |
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232 curr.y += delta.y; |
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233 /* |
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234 * Check if we are at the turn place, if so do the turn |
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235 */ |
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236 if (distance == turn_spot && turn_distance > 0) { |
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237 while(turn_distance-- > 0) { |
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238 cmov(curr); |
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239 addch(PASSAGE); |
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240 curr.x += turn_delta.x; |
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241 curr.y += turn_delta.y; |
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242 } |
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243 } |
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244 /* |
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245 * Continue digging along |
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246 */ |
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247 cmov(curr); |
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|
248 addch(PASSAGE); |
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249 distance--; |
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|
250 } |
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|
251 curr.x += delta.x; |
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252 curr.y += delta.y; |
2128c7dc8a40
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|
253 if (!ce(curr, epos)) { |
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254 msg("Warning, connectivity problem on this level."); |
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255 } |
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256 } |
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257 |
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258 /* |
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259 * Add a door or possibly a secret door |
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260 * also enters the door in the exits array of the room. |
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261 */ |
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262 |
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263 void |
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264 door(struct room *rm, struct coord *cp) |
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265 { |
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266 cmov(*cp); |
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267 addch(rnd(10) < level - 1 && rnd(100) < 20 ? SECRETDOOR : DOOR); |
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268 rm->r_exit[rm->r_nexits++] = *cp; |
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269 } |
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270 |
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271 |
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272 /* |
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273 * add_pass: |
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274 * add the passages to the current window (wizard command) |
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275 */ |
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276 void |
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277 add_pass(void) |
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278 { |
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279 reg int y, x, ch; |
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280 |
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281 for (y = 1; y < LINES - 3; y++) |
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282 for (x = 0; x < COLS; x++) |
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283 if ((ch = mvinch(y, x)) == PASSAGE || ch == DOOR || |
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284 ch == SECRETDOOR) |
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285 mvwaddch(cw, y, x, ch); |
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286 } |