Mercurial > hg > early-roguelike
annotate rogue5/chase.c @ 239:837044d2c362
Merge the GCC5 and build fix branches.
This fixes all warnings produced by GCC 5, except the ones related to
system functions. Those could be fixed by including the proper headers,
but it would be better to replace the system-dependent code with
functions from mdport.c.
author | John "Elwin" Edwards |
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date | Fri, 11 Mar 2016 19:47:52 -0500 |
parents | f502bf60e6e4 |
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rev | line source |
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33
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1 /* |
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2 * Code for one creature to chase another |
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3 * |
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4 * @(#)chase.c 4.57 (Berkeley) 02/05/99 |
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5 * |
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6 * Rogue: Exploring the Dungeons of Doom |
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman |
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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 <curses.h> |
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15 #include "rogue.h" |
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16 |
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17 #define DRAGONSHOT 5 /* one chance in DRAGONSHOT that a dragon will flame */ |
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18 |
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19 static coord ch_ret; /* Where chasing takes you */ |
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20 |
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21 /* |
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22 * runners: |
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23 * Make all the running monsters move. |
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24 */ |
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25 void |
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26 runners(void) |
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27 { |
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28 THING *tp; |
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29 THING *next; |
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30 int wastarget; |
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31 coord orig_pos; |
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32 |
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33 for (tp = mlist; tp != NULL; tp = next) |
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34 { |
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35 /* remember this in case the monster's "next" is changed */ |
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36 next = next(tp); |
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37 if (!on(*tp, ISHELD) && on(*tp, ISRUN)) |
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38 { |
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39 orig_pos = tp->t_pos; |
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40 wastarget = on(*tp, ISTARGET); |
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41 if (move_monst(tp) == -1) |
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42 continue; |
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43 if (on(*tp, ISFLY) && dist_cp(&hero, &tp->t_pos) >= 3) |
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44 move_monst(tp); |
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45 if (wastarget && !ce(orig_pos, tp->t_pos)) |
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46 { |
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47 tp->t_flags &= ~ISTARGET; |
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48 to_death = FALSE; |
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49 } |
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50 } |
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51 } |
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52 if (has_hit) |
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53 { |
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54 endmsg(); |
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55 has_hit = FALSE; |
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56 } |
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57 } |
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58 |
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59 /* |
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60 * move_monst: |
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61 * Execute a single turn of running for a monster |
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62 */ |
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63 int |
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64 move_monst(THING *tp) |
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65 { |
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66 if (!on(*tp, ISSLOW) || tp->t_turn) |
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67 if (do_chase(tp) == -1) |
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68 return(-1); |
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69 if (on(*tp, ISHASTE)) |
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70 if (do_chase(tp) == -1) |
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71 return(-1); |
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72 tp->t_turn ^= TRUE; |
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73 return(0); |
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74 } |
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75 |
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76 /* |
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77 * relocate: |
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78 * Make the monster's new location be the specified one, updating |
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79 * all the relevant state. |
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80 */ |
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81 void |
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82 relocate(THING *th, const coord *new_loc) |
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83 { |
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84 struct room *oroom; |
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85 |
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86 if (!ce(*new_loc, th->t_pos)) |
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87 { |
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88 mvaddch(th->t_pos.y, th->t_pos.x, th->t_oldch); |
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89 th->t_room = roomin(new_loc); |
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90 set_oldch(th, new_loc); |
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91 oroom = th->t_room; |
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92 moat(th->t_pos.y, th->t_pos.x) = NULL; |
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93 |
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94 if (oroom != th->t_room) |
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95 th->t_dest = find_dest(th); |
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96 th->t_pos = *new_loc; |
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97 moat(new_loc->y, new_loc->x) = th; |
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98 } |
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99 move(new_loc->y, new_loc->x); |
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100 if (see_monst(th)) |
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101 addch(th->t_disguise); |
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102 else if (on(player, SEEMONST)) |
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103 { |
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104 standout(); |
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105 addch(th->t_type); |
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106 standend(); |
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107 } |
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108 } |
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109 |
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110 /* |
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111 * do_chase: |
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112 * Make one thing chase another. |
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113 */ |
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114 int |
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115 do_chase(THING *th) |
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116 { |
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117 coord *cp; |
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118 struct room *rer, *ree; /* room of chaser, room of chasee */ |
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119 int mindist = 32767, curdist; |
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120 int stoprun = FALSE; /* TRUE means we are there */ |
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121 int door; |
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122 THING *obj; |
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123 coord this; /* Temporary destination for chaser */ |
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124 |
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125 rer = th->t_room; /* Find room of chaser */ |
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126 if (on(*th, ISGREED) && rer->r_goldval == 0) |
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127 th->t_dest = &hero; /* If gold has been taken, run after hero */ |
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128 if (th->t_dest == &hero) /* Find room of chasee */ |
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129 ree = proom; |
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130 else |
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131 ree = roomin(th->t_dest); |
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132 /* |
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133 * We don't count doors as inside rooms for this routine |
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134 */ |
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135 door = (chat(th->t_pos.y, th->t_pos.x) == DOOR); |
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136 /* |
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137 * If the object of our desire is in a different room, |
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138 * and we are not in a corridor, run to the door nearest to |
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139 * our goal. |
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140 */ |
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141 over: |
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142 if (rer != ree) |
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143 { |
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144 for (cp = rer->r_exit; cp < &rer->r_exit[rer->r_nexits]; cp++) |
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145 { |
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146 curdist = dist_cp(th->t_dest, cp); |
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147 if (curdist < mindist) |
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148 { |
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149 this = *cp; |
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150 mindist = curdist; |
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151 } |
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152 } |
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153 if (door) |
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154 { |
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155 rer = &passages[flat(th->t_pos.y, th->t_pos.x) & F_PNUM]; |
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156 door = FALSE; |
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157 goto over; |
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158 } |
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159 } |
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160 else |
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161 { |
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162 this = *th->t_dest; |
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163 /* |
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164 * For dragons check and see if (a) the hero is on a straight |
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165 * line from it, and (b) that it is within shooting distance, |
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166 * but outside of striking range. |
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167 */ |
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168 if (th->t_type == 'D' && (th->t_pos.y == hero.y || th->t_pos.x == hero.x |
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169 || abs(th->t_pos.y - hero.y) == abs(th->t_pos.x - hero.x)) |
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170 && dist_cp(&th->t_pos, &hero) <= BOLT_LENGTH * BOLT_LENGTH |
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171 && !on(*th, ISCANC) && rnd(DRAGONSHOT) == 0) |
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172 { |
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173 delta.y = sign(hero.y - th->t_pos.y); |
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174 delta.x = sign(hero.x - th->t_pos.x); |
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175 if (has_hit) |
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176 endmsg(); |
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177 fire_bolt(&th->t_pos, &delta, "flame"); |
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178 running = FALSE; |
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179 count = 0; |
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180 quiet = 0; |
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181 if (to_death && !on(*th, ISTARGET)) |
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182 { |
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183 to_death = FALSE; |
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184 kamikaze = FALSE; |
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185 } |
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186 return(0); |
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187 } |
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188 } |
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189 /* |
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190 * This now contains what we want to run to this time |
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191 * so we run to it. If we hit it we either want to fight it |
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192 * or stop running |
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193 */ |
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194 if (!chase(th, &this)) |
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195 { |
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196 if (ce(this, hero)) |
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197 { |
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198 return( attack(th) ); |
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199 } |
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200 else if (ce(this, *th->t_dest)) |
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201 { |
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202 for (obj = lvl_obj; obj != NULL; obj = next(obj)) |
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203 if (th->t_dest == &obj->o_pos) |
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204 { |
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205 detach(lvl_obj, obj); |
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206 attach(th->t_pack, obj); |
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207 chat(obj->o_pos.y, obj->o_pos.x) = |
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208 (th->t_room->r_flags & ISGONE) ? PASSAGE : FLOOR; |
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209 th->t_dest = find_dest(th); |
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210 break; |
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211 } |
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212 if (th->t_type != 'F') |
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213 stoprun = TRUE; |
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214 } |
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215 } |
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216 else |
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217 { |
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218 if (th->t_type == 'F') |
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219 return(0); |
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|
220 } |
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221 relocate(th, &ch_ret); |
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222 /* |
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223 * And stop running if need be |
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parents:
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224 */ |
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225 if (stoprun && ce(th->t_pos, *(th->t_dest))) |
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226 th->t_flags &= ~ISRUN; |
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227 return(0); |
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|
228 } |
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229 |
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230 /* |
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231 * set_oldch: |
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232 * Set the oldch character for the monster |
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|
233 */ |
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diff
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|
234 void |
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|
235 set_oldch(THING *tp, const coord *cp) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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236 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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237 int sch; |
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|
238 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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239 if (ce(tp->t_pos, *cp)) |
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240 return; |
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|
241 |
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242 sch = tp->t_oldch; |
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243 tp->t_oldch = CCHAR( mvinch(cp->y,cp->x) ); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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244 if (!on(player, ISBLIND)) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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245 { |
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246 if ((sch == FLOOR || tp->t_oldch == FLOOR) && |
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247 (tp->t_room->r_flags & ISDARK)) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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248 tp->t_oldch = ' '; |
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249 else if (dist_cp(cp, &hero) <= LAMPDIST && see_floor) |
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250 tp->t_oldch = chat(cp->y, cp->x); |
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251 } |
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parents:
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|
252 } |
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|
253 |
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|
254 /* |
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255 * see_monst: |
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256 * Return TRUE if the hero can see the monster |
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|
257 */ |
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258 int |
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259 see_monst(const THING *mp) |
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|
260 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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261 int y, x; |
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|
262 |
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263 if (on(player, ISBLIND)) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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264 return FALSE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
265 if (on(*mp, ISINVIS) && !on(player, CANSEE)) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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266 return FALSE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
267 y = mp->t_pos.y; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
268 x = mp->t_pos.x; |
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269 if (dist(y, x, hero.y, hero.x) < LAMPDIST) |
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270 { |
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271 if (y != hero.y && x != hero.x && |
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272 !step_ok(chat(y, hero.x)) && !step_ok(chat(hero.y, x))) |
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273 return FALSE; |
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274 return TRUE; |
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275 } |
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276 if (mp->t_room != proom) |
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277 return FALSE; |
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278 return (!(mp->t_room->r_flags & ISDARK)); |
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279 } |
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280 |
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281 /* |
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282 * runto: |
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283 * Set a monster running after the hero. |
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284 */ |
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285 void |
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286 runto(const coord *runner) |
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287 { |
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288 THING *tp; |
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289 |
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290 /* |
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291 * If we couldn't find him, something is funny |
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292 */ |
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293 if ((tp = moat(runner->y, runner->x)) == NULL) |
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294 { |
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295 #ifdef MASTER |
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296 msg("couldn't find monster in runto at (%d,%d)", runner->y, runner->x); |
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297 #endif |
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298 return; |
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299 } |
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300 |
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301 /* |
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302 * Start the beastie running |
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303 */ |
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304 tp->t_flags |= ISRUN; |
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305 tp->t_flags &= ~ISHELD; |
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306 tp->t_dest = find_dest(tp); |
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307 } |
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308 |
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309 /* |
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310 * chase: |
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311 * Find the spot for the chaser(er) to move closer to the |
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312 * chasee(ee). Returns TRUE if we want to keep on chasing later |
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313 * FALSE if we reach the goal. |
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314 */ |
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315 int |
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316 chase(THING *tp, const coord *ee) |
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317 { |
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318 THING *obj; |
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319 int x, y; |
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320 int curdist, thisdist; |
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321 const coord *er = &tp->t_pos; |
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322 int ch; |
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323 int plcnt = 1; |
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324 coord tryp; |
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325 |
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326 /* |
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327 * If the thing is confused, let it move randomly. Invisible |
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328 * Stalkers are slightly confused all of the time, and bats are |
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329 * quite confused all the time |
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330 */ |
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331 if ((on(*tp, ISHUH) && rnd(5) != 0) || (tp->t_type == 'P' && rnd(5) == 0) |
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332 || (tp->t_type == 'B' && rnd(2) == 0)) |
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333 { |
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334 /* |
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335 * get a valid random move |
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336 */ |
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337 ch_ret = rndmove(tp); |
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338 curdist = dist_cp(&ch_ret, ee); |
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339 /* |
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340 * Small chance that it will become un-confused |
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341 */ |
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342 if (rnd(20) == 0) |
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343 tp->t_flags &= ~ISHUH; |
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344 } |
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345 /* |
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346 * Otherwise, find the empty spot next to the chaser that is |
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347 * closest to the chasee. |
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348 */ |
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349 else |
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350 { |
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351 int ey, ex; |
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352 /* |
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353 * This will eventually hold where we move to get closer |
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354 * If we can't find an empty spot, we stay where we are. |
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355 */ |
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356 curdist = dist_cp(er, ee); |
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357 ch_ret = *er; |
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358 |
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359 ey = er->y + 1; |
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360 if (ey >= NUMLINES - 1) |
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361 ey = NUMLINES - 2; |
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362 ex = er->x + 1; |
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363 if (ex >= NUMCOLS) |
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364 ex = NUMCOLS - 1; |
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365 |
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366 for (x = er->x - 1; x <= ex; x++) |
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367 { |
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368 if (x < 0) |
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369 continue; |
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370 tryp.x = x; |
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371 for (y = er->y - 1; y <= ey; y++) |
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372 { |
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373 tryp.y = y; |
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374 if (!diag_ok(er, &tryp)) |
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375 continue; |
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376 ch = winat(y, x); |
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377 if (step_ok(ch)) |
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378 { |
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379 /* |
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380 * If it is a scroll, it might be a scare monster scroll |
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381 * so we need to look it up to see what type it is. |
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382 */ |
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383 if (ch == SCROLL) |
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384 { |
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385 for (obj = lvl_obj; obj != NULL; obj = next(obj)) |
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386 { |
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387 if (y == obj->o_pos.y && x == obj->o_pos.x) |
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388 break; |
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389 } |
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390 if (obj != NULL && obj->o_which == S_SCARE) |
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391 continue; |
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392 } |
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393 /* |
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394 * It can also be a Xeroc, which we shouldn't step on |
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395 */ |
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396 if ((obj = moat(y, x)) != NULL && obj->t_type == 'X') |
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397 continue; |
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398 /* |
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399 * If we didn't find any scrolls at this place or it |
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400 * wasn't a scare scroll, then this place counts |
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401 */ |
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402 thisdist = dist(y, x, ee->y, ee->x); |
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403 if (thisdist < curdist) |
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404 { |
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parents:
diff
changeset
|
405 plcnt = 1; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
406 ch_ret = tryp; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
407 curdist = thisdist; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
408 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
409 else if (thisdist == curdist && rnd(++plcnt) == 0) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
410 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
411 ch_ret = tryp; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
412 curdist = thisdist; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
413 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
414 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
415 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
416 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
417 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
418 return (curdist != 0 && !ce(ch_ret, hero)); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
419 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
420 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
421 /* |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
422 * roomin: |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
423 * Find what room some coordinates are in. NULL means they aren't |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
424 * in any room. |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
425 */ |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
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|
426 struct room * |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
427 roomin(const coord *cp) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
428 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
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|
429 struct room *rp; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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|
430 int *fp; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
431 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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changeset
|
432 fp = &flat(cp->y, cp->x); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
433 if (*fp & F_PASS) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
434 return &passages[*fp & F_PNUM]; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
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|
435 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
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|
436 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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437 if (cp->x <= rp->r_pos.x + rp->r_max.x && rp->r_pos.x <= cp->x |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
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438 && cp->y <= rp->r_pos.y + rp->r_max.y && rp->r_pos.y <= cp->y) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
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|
439 return rp; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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|
440 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
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|
441 msg("in some bizarre place (%d, %d)", unc(*cp)); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
442 #ifdef MASTER |
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|
443 abort(); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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|
444 return NULL; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
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changeset
|
445 #else |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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|
446 return NULL; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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changeset
|
447 #endif |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
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|
448 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
449 |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
450 /* |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
451 * diag_ok: |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
452 * Check to see if the move is legal if it is diagonal |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
453 */ |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
454 int |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
455 diag_ok(const coord *sp, const coord *ep) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
456 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
457 if (ep->x < 0 || ep->x >= NUMCOLS || ep->y <= 0 || ep->y >= NUMLINES - 1) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
458 return FALSE; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
459 if (ep->x == sp->x || ep->y == sp->y) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
460 return TRUE; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
461 return (step_ok(chat(ep->y, sp->x)) && step_ok(chat(sp->y, ep->x))); |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
462 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
463 |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
464 /* |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
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|
465 * cansee: |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
466 * Returns true if the hero can see a certain coordinate. |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
467 */ |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
468 int |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
469 cansee(int y, int x) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
470 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
471 struct room *rer; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
472 coord tp; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
473 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
474 if (on(player, ISBLIND)) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
475 return FALSE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
476 if (dist(y, x, hero.y, hero.x) < LAMPDIST) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
477 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
478 if (flat(y, x) & F_PASS) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
479 if (y != hero.y && x != hero.x && |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
480 !step_ok(chat(y, hero.x)) && !step_ok(chat(hero.y, x))) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
481 return FALSE; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
482 return TRUE; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
483 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
484 /* |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
485 * We can only see if the hero in the same room as |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
486 * the coordinate and the room is lit or if it is close. |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
487 */ |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
488 tp.y = y; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
489 tp.x = x; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
490 return ((rer = roomin(&tp)) == proom && !(rer->r_flags & ISDARK)); |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
491 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
492 |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
493 /* |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
494 * find_dest: |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
495 * find the proper destination for the monster |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
496 */ |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
497 const coord * |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
498 find_dest(const THING *tp) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
499 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
500 THING *obj; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
501 int prob; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
502 |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
503 if ((prob = monsters[tp->t_type - 'A'].m_carry) <= 0 || tp->t_room == proom |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
504 || see_monst(tp)) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
505 return &hero; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
506 for (obj = lvl_obj; obj != NULL; obj = next(obj)) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
507 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
508 if (obj->o_type == SCROLL && obj->o_which == S_SCARE) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
509 continue; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
510 if (roomin(&obj->o_pos) == tp->t_room && rnd(100) < prob) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
511 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
512 for (tp = mlist; tp != NULL; tp = next(tp)) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
513 if (tp->t_dest == &obj->o_pos) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
514 break; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
515 if (tp == NULL) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
516 return &obj->o_pos; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
517 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
518 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
519 return &hero; |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
520 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
521 |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
522 /* |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
523 * dist: |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
524 * Calculate the "distance" between to points. Actually, |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
525 * this calculates d^2, not d, but that's good enough for |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
526 * our purposes, since it's only used comparitively. |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
527 */ |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
528 int |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
529 dist(int y1, int x1, int y2, int x2) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
530 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
531 return ((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)); |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
532 } |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
533 |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
534 /* |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
535 * dist_cp: |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
536 * Call dist() with appropriate arguments for coord pointers |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
537 */ |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
538 int |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
539 dist_cp(const coord *c1, const coord *c2) |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
540 { |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
541 return dist(c1->y, c1->x, c2->y, c2->x); |
f502bf60e6e4
Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
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542 } |