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annotate arogue5/maze.c @ 164:49af2fd0bb0c

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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
date Tue, 16 Jun 2015 11:44:49 -0400
parents 0ed67132cf10
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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63
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1 /*
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2 * maze
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Super-Rogue"
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9 * Copyright (C) 1984 Robert D. Kindelberger
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include <stdlib.h>
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16 #include "curses.h"
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17 #include "rogue.h"
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18
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19 struct cell {
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20 char y_pos;
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21 char x_pos;
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22 };
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23
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24 struct bordercells {
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25 char num_pos; /* number of frontier cells next to you */
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26 struct cell conn[4]; /* the y,x position of above cell */
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27 } border_cells;
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28
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29 static char *frontier,
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30 *bits;
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31 static int maze_lines,
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32 maze_cols;
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33 char *moffset(),
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34 *foffset();
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35
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36
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37 /*
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38 * crankout:
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39 * Does actual drawing of maze to window
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40 */
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41 crankout()
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42 {
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43 reg int x, y;
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44
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45 for (y = 0; y < LINES - 3; y++) {
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46 move(y + 1, 0);
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47 for (x = 0; x < COLS - 1; x++) {
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48 if (*moffset(y, x)) { /* here is a wall */
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49 if(y==0 || y==LINES-4) /* top or bottom line */
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50 addch('-');
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51 else if(x==0 || x==COLS-2) /* left | right side */
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52 addch('|');
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53 else if (y % 2 == 0 && x % 2 == 0) {
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54 if(*moffset(y, x-1) || *moffset(y, x+1))
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55 addch('-');
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56 else
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57 addch('|');
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58 }
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59 else if (y % 2 == 0)
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60 addch('-');
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61 else
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62 addch('|');
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63 }
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64 else
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65 addch(FLOOR);
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66 }
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67 }
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68 }
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69
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70 /*
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71 * domaze:
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72 * Draw the maze on this level.
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73 */
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74 do_maze()
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75 {
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76 reg int least;
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77 reg struct room *rp;
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78 reg struct linked_list *item;
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79 reg struct object *obj;
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80 int cnt;
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81 bool treas;
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82 coord tp;
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83
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84 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
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85 rp->r_flags = ISGONE; /* kill all rooms */
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86 rp->r_fires = NULL; /* no fires */
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87 }
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88 rp = &rooms[0]; /* point to only room */
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89 rp->r_flags = ISDARK; /* mazes always dark */
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90 rp->r_pos.x = 0; /* room fills whole screen */
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91 rp->r_pos.y = 1;
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92 rp->r_max.x = COLS - 1;
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93 rp->r_max.y = LINES - 3;
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94 draw_maze(); /* put maze into window */
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95 /*
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96 * add some gold to make it worth looking for
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97 */
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98 item = spec_item(GOLD, NULL, NULL, NULL);
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99 obj = OBJPTR(item);
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100 obj->o_count *= (rnd(10) + 1); /* add in one large hunk */
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101 attach(lvl_obj, item);
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102 cnt = 0;
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103 do {
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104 rnd_pos(rp, &tp);
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105 } until (mvinch(tp.y, tp.x) == FLOOR || cnt++ > 5000);
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106 mvaddch(tp.y, tp.x, GOLD);
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107 obj->o_pos = tp;
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108 /*
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109 * add in some food to make sure he has enough
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110 */
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111 item = spec_item(FOOD, NULL, NULL, NULL);
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112 obj = OBJPTR(item);
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113 attach(lvl_obj, item);
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114 do {
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115 rnd_pos(rp, &tp);
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116 } until (mvinch(tp.y, tp.x) == FLOOR || cnt++ > 5000);
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117 mvaddch(tp.y, tp.x, FOOD);
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118 obj->o_pos = tp;
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119 if (rnd(100) < 10) { /* 10% for treasure maze */
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120 treas = TRUE;
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121 least = 6;
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122 debug("treasure maze");
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123 }
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124 else { /* normal maze level */
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125 least = 1;
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126 treas = FALSE;
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127 }
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128 genmonsters(least, treas);
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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 * draw_maze:
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134 * Generate and draw the maze on the screen
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135 */
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136 draw_maze()
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137 {
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138 reg int i, j, more;
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139 reg char *ptr;
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140
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141 maze_lines = (LINES - 3) / 2;
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142 maze_cols = (COLS - 1) / 2;
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143 bits = ALLOC((LINES - 3) * (COLS - 1));
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144 frontier = ALLOC(maze_lines * maze_cols);
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145 ptr = frontier;
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146 while (ptr < (frontier + (maze_lines * maze_cols)))
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147 *ptr++ = TRUE;
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148 for (i = 0; i < LINES - 3; i++) {
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149 for (j = 0; j < COLS - 1; j++) {
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150 if (i % 2 == 1 && j % 2 == 1)
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151 *moffset(i, j) = FALSE; /* floor */
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152 else
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153 *moffset(i, j) = TRUE; /* wall */
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154 }
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155 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
156 for (i = 0; i < maze_lines; i++) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
157 for (j = 0; j < maze_cols; j++) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
158 do
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
159 more = findcells(i,j);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
160 while(more != 0);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
161 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
162 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
163 crankout();
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
164 FREE(frontier);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
165 FREE(bits);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
166 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
167
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
168 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
169 * findcells:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
170 * Figure out cells to open up
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
171 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
172 findcells(y,x)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
173 reg int x, y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
174 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
175 reg int rtpos, i;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
176
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
177 *foffset(y, x) = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
178 border_cells.num_pos = 0;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
179 if (y < maze_lines - 1) { /* look below */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
180 if (*foffset(y + 1, x)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
181 border_cells.conn[border_cells.num_pos].y_pos = y + 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
182 border_cells.conn[border_cells.num_pos].x_pos = x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
183 border_cells.num_pos += 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
184 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
185 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
186 if (y > 0) { /* look above */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
187 if (*foffset(y - 1, x)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
188 border_cells.conn[border_cells.num_pos].y_pos = y - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
189 border_cells.conn[border_cells.num_pos].x_pos = x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
190 border_cells.num_pos += 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
191
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
192 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
193 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
194 if (x < maze_cols - 1) { /* look right */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
195 if (*foffset(y, x + 1)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
196 border_cells.conn[border_cells.num_pos].y_pos = y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
197 border_cells.conn[border_cells.num_pos].x_pos = x + 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
198 border_cells.num_pos += 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
199 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
200 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
201 if (x > 0) { /* look left */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
202 if (*foffset(y, x - 1)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
203 border_cells.conn[border_cells.num_pos].y_pos = y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
204 border_cells.conn[border_cells.num_pos].x_pos = x - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
205 border_cells.num_pos += 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
206
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
207 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
208 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
209 if (border_cells.num_pos == 0) /* no neighbors available */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
210 return 0;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
211 else {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
212 i = rnd(border_cells.num_pos);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
213 rtpos = border_cells.num_pos - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
214 rmwall(border_cells.conn[i].y_pos, border_cells.conn[i].x_pos, y, x);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
215 return rtpos;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
216 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
217 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
218
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
219 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
220 * foffset:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
221 * Calculate memory address for frontier
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
222 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
223 char *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
224 foffset(y, x)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
225 int y, x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
226 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
227
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
228 return (frontier + (y * maze_cols) + x);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
229 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
230
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
231
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
232 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
233 * Maze_view:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
234 * Returns true if the player can see the specified location within
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
235 * the confines of a maze (within one column or row)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
236 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
237
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
238 bool
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
239 maze_view(y, x)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
240 int y, x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
241 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
242 register int start, goal, delta, ycheck = 0, xcheck = 0, absy, absx, see_radius;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
243 register bool row;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
244 char ch; /* What we are standing on (or near) */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
245
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
246 /* Get the absolute value of y and x differences */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
247 absy = hero.y - y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
248 absx = hero.x - x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
249 if (absy < 0) absy = -absy;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
250 if (absx < 0) absx = -absx;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
251
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
252 /* If we are standing in a wall, we can see a bit more */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
253 switch (ch = CCHAR( winat(hero.y, hero.x) )) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
254 case '|':
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
255 case '-':
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
256 case WALL:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
257 case SECRETDOOR:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
258 case DOOR:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
259 see_radius = 2;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
260 otherwise:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
261 see_radius = 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
262 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
263
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
264 /* Must be within one or two rows or columns */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
265 if (absy > see_radius && absx > see_radius) return(FALSE);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
266
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
267 if (absx > see_radius) { /* Go along row */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
268 start = hero.x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
269 goal = x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
270 ycheck = hero.y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
271 row = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
272 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
273 else { /* Go along column */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
274 start = hero.y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
275 goal = y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
276 xcheck = hero.x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
277 row = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
278 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
279
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
280 if (start <= goal) delta = 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
281 else delta = -1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
282
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
283 /* Start one past where we are standing */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
284 if (start != goal) start += delta;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
285
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
286 /* If we are in a wall, we want to look in the area outside the wall */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
287 if (see_radius > 1) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
288 if (row) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
289 /* See if above us it okay first */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
290 switch (winat(ycheck, start)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
291 case '|':
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
292 case '-':
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
293 case WALL:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
294 case DOOR:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
295 case SECRETDOOR:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
296 /* No good, try one up */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
297 if (y > hero.y) ycheck++;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
298 else ycheck--;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
299 otherwise:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
300 see_radius = 1; /* Just look straight over the row */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
301 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
302 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
303 else {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
304 /* See if above us it okay first */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
305 switch (winat(start, xcheck)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
306 case '|':
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
307 case '-':
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
308 case WALL:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
309 case DOOR:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
310 case SECRETDOOR:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
311 /* No good, try one over */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
312 if (x > hero.x) xcheck++;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
313 else xcheck--;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
314 otherwise:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
315 see_radius = 1; /* Just look straight up the column */
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316 }
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317 }
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318 }
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319
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320 /* Check boundary again */
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321 if (absy > see_radius && absx > see_radius) return(FALSE);
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322
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323 while (start != goal) {
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324 if (row) xcheck = start;
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325 else ycheck = start;
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326 switch (winat(ycheck, xcheck)) {
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327 case '|':
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328 case '-':
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329 case WALL:
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330 case DOOR:
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331 case SECRETDOOR:
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332 return(FALSE);
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333 }
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334 start += delta;
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335 }
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336 return(TRUE);
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337 }
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338
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339
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340 /*
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341 * moffset:
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342 * Calculate memory address for bits
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343 */
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344 char *
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345 moffset(y, x)
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346 int y, x;
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347 {
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348
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349 return (bits + (y * (COLS - 1)) + x);
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350 }
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351
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352
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353
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354
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355 /*
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356 * rmwall:
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357 * Removes appropriate walls from the maze
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358 */
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359 rmwall(newy, newx, oldy, oldx)
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360 int newy, newx, oldy, oldx;
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361 {
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362 reg int xdif,ydif;
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363
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364 xdif = newx - oldx;
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365 ydif = newy - oldy;
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366
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367 *moffset((oldy * 2) + ydif + 1, (oldx * 2) + xdif + 1) = FALSE;
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368 findcells(newy, newx);
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369 }