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annotate arogue5/maze.c @ 201:6fb21004a981

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Fix some preprocessor directives. Include process.h in the right place, and use the correct definition of PATH_MAX, when compiling on Windows.
author John "Elwin" Edwards
date Wed, 12 Aug 2015 16:56:19 -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 }
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156 for (i = 0; i < maze_lines; i++) {
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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 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
316 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
317 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
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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 }