Mercurial > hg > early-roguelike
annotate arogue7/passages.c @ 164:49af2fd0bb0c
Move some autotools files to where configure can find them.
rogue5 uses config.guess and config.sub to find the canonical system
names. The configure script expects them to be in the same directory
as install-sh. So they have been relocated to the top level.
This is a quick and dirty fix. The eventual plan is to relocate them
to /dev/null.
I also suspect they should be used to set HOST, not TARGET. Rogue is
not a cross-compiler.
author | John "Elwin" Edwards |
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date | Tue, 16 Jun 2015 11:44:49 -0400 |
parents | adfa37e67084 |
children | 1cd604c827a3 |
rev | line source |
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125
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1 /* |
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2 * passages.c - Draw the connecting passages |
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3 * |
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4 * Advanced Rogue |
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5 * Copyright (C) 1984, 1985, 1986 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 "Rogue: Exploring the Dungeons of Doom" |
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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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 /* |
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16 * Draw the connecting passages |
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17 * |
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18 * @(#)passages.c 3.4 (Berkeley) 6/15/81 |
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19 */ |
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20 |
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21 #include "curses.h" |
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22 #include "rogue.h" |
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23 |
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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 |
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29 do_passages() |
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30 { |
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31 register struct rdes *r1, *r2; |
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32 register int i, j; |
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33 register int roomcount; |
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34 static struct rdes |
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35 { |
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36 bool conn[MAXROOMS]; /* possible to connect to room i? */ |
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37 bool isconn[MAXROOMS]; /* connection been 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-1]; r1++) |
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55 { |
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56 for (j = 0; j < MAXROOMS; j++) |
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57 r1->isconn[j] = FALSE; |
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58 r1->ingraph = FALSE; |
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59 } |
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60 |
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61 /* |
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62 * starting with one room, connect it to a random adjacent room and |
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63 * then pick a new room to start with. |
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64 */ |
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65 roomcount = 1; |
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66 r1 = &rdes[rnd(MAXROOMS)]; |
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67 r1->ingraph = TRUE; |
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68 do |
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69 { |
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70 /* |
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71 * find a room to connect with |
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72 */ |
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73 j = 0; |
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74 for (i = 0; i < MAXROOMS; i++) |
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75 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0) |
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76 r2 = &rdes[i]; |
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77 /* |
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78 * if no adjacent rooms are outside the graph, pick a new room |
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79 * to look from |
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80 */ |
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81 if (j == 0) |
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82 { |
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83 do |
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84 r1 = &rdes[rnd(MAXROOMS)]; |
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85 until (r1->ingraph); |
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86 } |
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87 /* |
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88 * otherwise, connect new room to the graph, and draw a tunnel |
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89 * to it |
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90 */ |
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91 else |
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92 { |
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93 r2->ingraph = TRUE; |
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94 i = (int)(r1 - rdes); |
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95 j = (int)(r2 - rdes); |
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96 conn(i, j); |
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97 r1->isconn[j] = TRUE; |
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98 r2->isconn[i] = TRUE; |
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99 roomcount++; |
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100 } |
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101 } while (roomcount < MAXROOMS); |
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102 |
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103 /* |
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104 * attempt to add passages to the graph a random number of times so |
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105 * that there isn't just one unique passage through it. |
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106 */ |
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107 for (roomcount = rnd(5); roomcount > 0; roomcount--) |
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108 { |
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109 r1 = &rdes[rnd(MAXROOMS)]; /* a random room to look from */ |
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110 /* |
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111 * find an adjacent room not already connected |
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112 */ |
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113 j = 0; |
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114 for (i = 0; i < MAXROOMS; i++) |
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115 if (r1->conn[i] && !r1->isconn[i] && rnd(++j) == 0) |
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116 r2 = &rdes[i]; |
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117 /* |
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118 * if there is one, connect it and look for the next added |
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119 * passage |
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120 */ |
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121 if (j != 0) |
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122 { |
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123 i = (int)(r1 - rdes); |
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124 j = (int)(r2 - rdes); |
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125 conn(i, j); |
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126 r1->isconn[j] = TRUE; |
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127 r2->isconn[i] = TRUE; |
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128 } |
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129 } |
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130 } |
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131 |
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132 /* |
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133 * conn: |
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134 * Draw a corridor from a room in a certain direction. |
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135 */ |
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136 |
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137 conn(r1, r2) |
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138 int r1, r2; |
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139 { |
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140 register struct room *rpf, *rpt; |
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141 register char rmt; |
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142 register int distance, max_diag, offset, i; |
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143 register int rm; |
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144 int turns[3], turn_dist[3]; |
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145 register char direc; |
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146 coord delta, curr, turn_delta, spos, epos; |
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147 |
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148 if (r1 < r2) |
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149 { |
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150 rm = r1; |
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151 if (r1 + 1 == r2) |
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152 direc = 'r'; |
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153 else |
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154 direc = 'd'; |
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155 } |
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156 else |
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157 { |
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158 rm = r2; |
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159 if (r2 + 1 == r1) |
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160 direc = 'r'; |
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161 else |
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162 direc = 'd'; |
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163 } |
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164 rpf = &rooms[rm]; |
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165 /* |
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166 * Set up the movement variables, in two cases: |
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167 * first drawing one down. |
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168 */ |
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169 if (direc == 'd') |
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170 { |
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171 rmt = rm + 3; /* room # of dest */ |
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172 rpt = &rooms[rmt]; /* room pointer of dest */ |
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173 delta.x = 0; /* direction of move */ |
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174 delta.y = 1; |
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175 spos.x = rpf->r_pos.x; /* start of move */ |
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176 spos.y = rpf->r_pos.y; |
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177 epos.x = rpt->r_pos.x; /* end of move */ |
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178 epos.y = rpt->r_pos.y; |
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179 if (!(rpf->r_flags & ISGONE)) /* if not gone pick door pos */ |
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180 { |
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181 spos.x += rnd(rpf->r_max.x-2)+1; |
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182 spos.y += rpf->r_max.y-1; |
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183 } |
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184 if (!(rpt->r_flags & ISGONE)) |
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185 epos.x += rnd(rpt->r_max.x-2)+1; |
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186 distance = abs(spos.y - epos.y) - 1; /* distance to move */ |
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187 turn_delta.y = 0; /* direction to turn */ |
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188 turn_delta.x = (spos.x < epos.x ? 1 : -1); |
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189 offset = abs(spos.x - epos.x); /* how far to turn */ |
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190 } |
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191 else if (direc == 'r') /* setup for moving right */ |
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192 { |
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193 rmt = rm + 1; |
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194 rpt = &rooms[rmt]; |
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195 delta.x = 1; |
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196 delta.y = 0; |
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197 spos.x = rpf->r_pos.x; |
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198 spos.y = rpf->r_pos.y; |
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199 epos.x = rpt->r_pos.x; |
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200 epos.y = rpt->r_pos.y; |
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201 if (!(rpf->r_flags & ISGONE)) |
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|
202 { |
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203 spos.x += rpf->r_max.x-1; |
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204 spos.y += rnd(rpf->r_max.y-2)+1; |
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diff
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205 } |
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diff
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206 if (!(rpt->r_flags & ISGONE)) |
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207 epos.y += rnd(rpt->r_max.y-2)+1; |
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diff
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208 distance = abs(spos.x - epos.x) - 1; |
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209 turn_delta.y = (spos.y < epos.y ? 1 : -1); |
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210 turn_delta.x = 0; |
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diff
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|
211 offset = abs(spos.y - epos.y); |
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212 } |
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|
213 else |
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|
214 debug("error in connection tables"); |
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|
215 |
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|
216 /* |
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217 * Draw in the doors on either side of the passage or just put #'s |
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218 * if the rooms are gone. |
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|
219 */ |
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220 if (!(rpf->r_flags & ISGONE)) door(rpf, &spos); |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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221 else |
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222 { |
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223 cmov(spos); |
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224 addch('#'); |
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225 } |
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226 if (!(rpt->r_flags & ISGONE)) door(rpt, &epos); |
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227 else |
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|
228 { |
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229 cmov(epos); |
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230 addch('#'); |
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231 } |
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232 |
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233 /* How far can we move diagonally? */ |
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234 max_diag = min(distance, offset); |
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235 |
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236 /* |
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237 * Decide how many turns we will have. |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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238 */ |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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239 for (i=0; i<3; i++) turn_dist[i] = 0; /* Init distances */ |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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240 if (max_diag > 0) { |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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241 int nturns; |
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|
242 |
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243 for (i=0, nturns=0; i<3; i++) { |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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244 if (rnd(3 - i + nturns) == 0) { |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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245 nturns++; |
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|
246 turns[i] = 0; |
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|
247 } |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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248 else turns[i] = -1; |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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|
249 } |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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250 } |
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251 else { |
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252 /* Just use a straight line (middle turn) */ |
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253 turns[0] = turns[2] = -1; |
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254 turns[1] = 0; |
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255 } |
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256 |
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257 /* |
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258 * Now decide how long each turn will be (for those selected above). |
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259 */ |
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260 while (max_diag > 0) { |
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261 for (i=0; i<3; i++) { |
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262 if (turns[i] >= 0 && max_diag > 0 && rnd(2) == 0) { |
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263 turn_dist[i]++; |
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264 max_diag--; |
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265 } |
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266 } |
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267 } |
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268 |
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269 /* |
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270 * If we have extra offset space, add it to the straight turn. |
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271 */ |
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272 if (offset > distance) turn_dist[1] += offset - distance; |
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273 |
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274 /* |
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275 * Decide where we want to make our turns. |
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276 * First calculate the offsets, then use those offsets to calculate |
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277 * the exact position relative to "distance." |
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278 */ |
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279 turns[0] = rnd(distance - turn_dist[0] - turn_dist[2]); |
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280 turns[2] = rnd(distance - turn_dist[0] - turn_dist[2] - turns[0]); |
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281 turns[1] = rnd(distance - turn_dist[0] - turn_dist[2] - |
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282 turns[0] - turns[2]); |
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283 |
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284 turns[0] = distance - turns[0]; |
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285 turns[1] = turns[0] - turn_dist[0] - turns[1]; |
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286 turns[2] = turns[1] - turns[2]; |
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287 |
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288 /* |
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289 * Get ready to move... |
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290 */ |
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291 curr.x = spos.x; |
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292 curr.y = spos.y; |
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293 while (distance > 0) { |
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294 /* |
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295 * Move to next row/column |
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296 */ |
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297 curr.x += delta.x; |
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298 curr.y += delta.y; |
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299 |
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300 /* |
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301 * Check if we are at a turn place; if so make a turn |
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302 */ |
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303 for (i=0; i<3; i++) { |
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304 if (distance == turns[i] && turn_dist[i] > 0) { |
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305 /* |
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306 * If this is the start of a straight path, |
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307 * we might put in a right-angle turn (33% chance). |
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308 */ |
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309 if (i == 1 && rnd(3) == 0) { |
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310 cmov(curr); |
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311 addch(PASSAGE); |
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312 } |
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313 |
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314 /* Now dig the turn */ |
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315 while (turn_dist[i]--) { |
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316 curr.x += turn_delta.x; |
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317 curr.y += turn_delta.y; |
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318 cmov(curr); |
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319 addch(PASSAGE); |
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320 if (i != 1) { /* A diagonal */ |
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321 if (--distance > 0) { |
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322 curr.x += delta.x; |
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323 curr.y += delta.y; |
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324 } |
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325 } |
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326 } |
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327 } |
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328 } |
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329 |
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330 if (distance > 0) { |
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331 /* |
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332 * Dig the passage. |
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333 */ |
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334 cmov(curr); |
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335 addch(PASSAGE); |
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336 distance--; |
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337 } |
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338 } |
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339 curr.x += delta.x; |
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340 curr.y += delta.y; |
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341 if (!ce(curr, epos)) |
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342 msg("Warning, connectivity problem (%d, %d) to (%d, %d).", |
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343 curr.y, curr.x, epos.y, epos.x); |
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344 } |
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345 |
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346 /* |
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347 * Add a door or possibly a secret door |
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348 * also enters the door in the exits array of the room. |
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349 */ |
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350 |
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351 door(rm, cp) |
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352 register struct room *rm; |
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353 register coord *cp; |
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354 { |
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355 struct linked_list *newroom; |
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356 coord *exit; |
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357 |
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358 cmov(*cp); |
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359 addch((rnd(10) < level - 1 && rnd(100) < 20) ? SECRETDOOR : DOOR); |
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360 |
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361 /* Insert the new room into the linked list of rooms */ |
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362 newroom = new_item(sizeof(coord)); |
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363 exit = DOORPTR(newroom); |
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364 *exit = *cp; |
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365 attach(rm->r_exit, newroom); |
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366 } |