Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
This commit is contained in:
John "Elwin" Edwards
parent
6af92da76a
commit
cf121ade21
51 changed files with 37593 additions and 0 deletions
368
arogue7/maze.c
Normal file
368
arogue7/maze.c
Normal file
|
|
@ -0,0 +1,368 @@
|
|||
/*
|
||||
* maze.c - functions for dealing with mazes
|
||||
*
|
||||
* Advanced Rogue
|
||||
* Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
|
||||
* All rights reserved.
|
||||
*
|
||||
* Based on "Rogue: Exploring the Dungeons of Doom"
|
||||
* Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
|
||||
* All rights reserved.
|
||||
*
|
||||
* See the file LICENSE.TXT for full copyright and licensing information.
|
||||
*/
|
||||
|
||||
#include "curses.h"
|
||||
#include <stdlib.h>
|
||||
#include "rogue.h"
|
||||
|
||||
struct cell {
|
||||
char y_pos;
|
||||
char x_pos;
|
||||
};
|
||||
struct bordercells {
|
||||
char num_pos; /* number of frontier cells next to you */
|
||||
struct cell conn[4]; /* the y,x position of above cell */
|
||||
} border_cells;
|
||||
|
||||
|
||||
static char *frontier,
|
||||
*bits;
|
||||
static int maze_lines,
|
||||
maze_cols;
|
||||
char *moffset(),
|
||||
*foffset();
|
||||
|
||||
|
||||
/*
|
||||
* crankout:
|
||||
* Does actual drawing of maze to window
|
||||
*/
|
||||
crankout()
|
||||
{
|
||||
reg int x, y;
|
||||
|
||||
for (y = 0; y < lines - 3; y++) {
|
||||
move(y + 1, 0);
|
||||
for (x = 0; x < cols - 1; x++) {
|
||||
if (*moffset(y, x)) { /* here is a wall */
|
||||
if(y==0 || y==lines-4) /* top or bottom line */
|
||||
addch('-');
|
||||
else if(x==0 || x==cols-2) /* left | right side */
|
||||
addch('|');
|
||||
else if (y % 2 == 0 && x % 2 == 0) {
|
||||
if(*moffset(y, x-1) || *moffset(y, x+1))
|
||||
addch('-');
|
||||
else
|
||||
addch('|');
|
||||
}
|
||||
else if (y % 2 == 0)
|
||||
addch('-');
|
||||
else
|
||||
addch('|');
|
||||
}
|
||||
else
|
||||
addch(FLOOR);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* domaze:
|
||||
* Draw the maze on this level.
|
||||
*/
|
||||
do_maze()
|
||||
{
|
||||
reg int least;
|
||||
reg struct room *rp;
|
||||
reg struct linked_list *item;
|
||||
reg struct object *obj;
|
||||
int cnt;
|
||||
bool treas;
|
||||
coord tp;
|
||||
|
||||
for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
|
||||
rp->r_flags = ISGONE; /* kill all rooms */
|
||||
rp->r_fires = NULL; /* no fires */
|
||||
}
|
||||
rp = &rooms[0]; /* point to only room */
|
||||
rp->r_flags = ISDARK; /* mazes always dark */
|
||||
rp->r_pos.x = 0; /* room fills whole screen */
|
||||
rp->r_pos.y = 1;
|
||||
rp->r_max.x = cols - 1;
|
||||
rp->r_max.y = lines - 3;
|
||||
draw_maze(); /* put maze into window */
|
||||
/*
|
||||
* add some gold to make it worth looking for
|
||||
*/
|
||||
item = spec_item(GOLD, NULL, NULL, NULL);
|
||||
obj = OBJPTR(item);
|
||||
obj->o_count *= (rnd(5) + 5); /* add in one large hunk */
|
||||
attach(lvl_obj, item);
|
||||
cnt = 0;
|
||||
do {
|
||||
rnd_pos(rp, &tp);
|
||||
} until (mvinch(tp.y, tp.x) == FLOOR || cnt++ > 5000);
|
||||
mvaddch(tp.y, tp.x, GOLD);
|
||||
obj->o_pos = tp;
|
||||
/*
|
||||
* add in some food to make sure he has enough
|
||||
*/
|
||||
item = spec_item(FOOD, NULL, NULL, NULL);
|
||||
obj = OBJPTR(item);
|
||||
attach(lvl_obj, item);
|
||||
do {
|
||||
rnd_pos(rp, &tp);
|
||||
} until (mvinch(tp.y, tp.x) == FLOOR || cnt++ > 5000);
|
||||
mvaddch(tp.y, tp.x, FOOD);
|
||||
obj->o_pos = tp;
|
||||
if (rnd(100) < 40) { /* treasure type maze */
|
||||
treas = TRUE;
|
||||
least = 10;
|
||||
debug("treasure maze");
|
||||
}
|
||||
else { /* normal maze level */
|
||||
least = 5;
|
||||
treas = FALSE;
|
||||
}
|
||||
genmonsters(least, treas);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* draw_maze:
|
||||
* Generate and draw the maze on the screen
|
||||
*/
|
||||
draw_maze()
|
||||
{
|
||||
reg int i, j, more;
|
||||
reg char *ptr;
|
||||
|
||||
maze_lines = (lines - 3) / 2;
|
||||
maze_cols = (cols - 1) / 2;
|
||||
bits = ALLOC((lines - 3) * (cols - 1));
|
||||
frontier = ALLOC(maze_lines * maze_cols);
|
||||
ptr = frontier;
|
||||
while (ptr < (frontier + (maze_lines * maze_cols)))
|
||||
*ptr++ = TRUE;
|
||||
for (i = 0; i < lines - 3; i++) {
|
||||
for (j = 0; j < cols - 1; j++) {
|
||||
if (i % 2 == 1 && j % 2 == 1)
|
||||
*moffset(i, j) = FALSE; /* floor */
|
||||
else
|
||||
*moffset(i, j) = TRUE; /* wall */
|
||||
}
|
||||
}
|
||||
for (i = 0; i < maze_lines; i++) {
|
||||
for (j = 0; j < maze_cols; j++) {
|
||||
do
|
||||
more = findcells(i,j);
|
||||
while(more != 0);
|
||||
}
|
||||
}
|
||||
crankout();
|
||||
FREE(frontier);
|
||||
FREE(bits);
|
||||
}
|
||||
|
||||
/*
|
||||
* findcells:
|
||||
* Figure out cells to open up
|
||||
*/
|
||||
findcells(y,x)
|
||||
reg int x, y;
|
||||
{
|
||||
reg int rtpos, i;
|
||||
|
||||
*foffset(y, x) = FALSE;
|
||||
border_cells.num_pos = 0;
|
||||
if (y < maze_lines - 1) { /* look below */
|
||||
if (*foffset(y + 1, x)) {
|
||||
border_cells.conn[border_cells.num_pos].y_pos = y + 1;
|
||||
border_cells.conn[border_cells.num_pos].x_pos = x;
|
||||
border_cells.num_pos += 1;
|
||||
}
|
||||
}
|
||||
if (y > 0) { /* look above */
|
||||
if (*foffset(y - 1, x)) {
|
||||
border_cells.conn[border_cells.num_pos].y_pos = y - 1;
|
||||
border_cells.conn[border_cells.num_pos].x_pos = x;
|
||||
border_cells.num_pos += 1;
|
||||
|
||||
}
|
||||
}
|
||||
if (x < maze_cols - 1) { /* look right */
|
||||
if (*foffset(y, x + 1)) {
|
||||
border_cells.conn[border_cells.num_pos].y_pos = y;
|
||||
border_cells.conn[border_cells.num_pos].x_pos = x + 1;
|
||||
border_cells.num_pos += 1;
|
||||
}
|
||||
}
|
||||
if (x > 0) { /* look left */
|
||||
if (*foffset(y, x - 1)) {
|
||||
border_cells.conn[border_cells.num_pos].y_pos = y;
|
||||
border_cells.conn[border_cells.num_pos].x_pos = x - 1;
|
||||
border_cells.num_pos += 1;
|
||||
|
||||
}
|
||||
}
|
||||
if (border_cells.num_pos == 0) /* no neighbors available */
|
||||
return 0;
|
||||
else {
|
||||
i = rnd(border_cells.num_pos);
|
||||
rtpos = border_cells.num_pos - 1;
|
||||
rmwall(border_cells.conn[i].y_pos, border_cells.conn[i].x_pos, y, x);
|
||||
return rtpos;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* foffset:
|
||||
* Calculate memory address for frontier
|
||||
*/
|
||||
char *
|
||||
foffset(y, x)
|
||||
int y, x;
|
||||
{
|
||||
|
||||
return (frontier + (y * maze_cols) + x);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Maze_view:
|
||||
* Returns true if the player can see the specified location within
|
||||
* the confines of a maze (within one column or row)
|
||||
*/
|
||||
|
||||
bool
|
||||
maze_view(y, x)
|
||||
int y, x;
|
||||
{
|
||||
register int start, goal, delta, ycheck, xcheck, absy, absx, see_radius;
|
||||
register bool row;
|
||||
|
||||
/* Get the absolute value of y and x differences */
|
||||
absy = hero.y - y;
|
||||
absx = hero.x - x;
|
||||
if (absy < 0) absy = -absy;
|
||||
if (absx < 0) absx = -absx;
|
||||
|
||||
/* If we are standing in a wall, we can see a bit more */
|
||||
switch (winat(hero.y, hero.x)) {
|
||||
case '|':
|
||||
case '-':
|
||||
case WALL:
|
||||
case SECRETDOOR:
|
||||
case DOOR:
|
||||
see_radius = 2;
|
||||
otherwise:
|
||||
see_radius = 1;
|
||||
}
|
||||
|
||||
/* Must be within one or two rows or columns */
|
||||
if (absy > see_radius && absx > see_radius) return(FALSE);
|
||||
|
||||
if (absx > see_radius) { /* Go along row */
|
||||
start = hero.x;
|
||||
goal = x;
|
||||
ycheck = hero.y;
|
||||
row = TRUE;
|
||||
}
|
||||
else { /* Go along column */
|
||||
start = hero.y;
|
||||
goal = y;
|
||||
xcheck = hero.x;
|
||||
row = FALSE;
|
||||
}
|
||||
|
||||
if (start <= goal) delta = 1;
|
||||
else delta = -1;
|
||||
|
||||
/* Start one past where we are standing */
|
||||
if (start != goal) start += delta;
|
||||
|
||||
/* If we are in a wall, we want to look in the area outside the wall */
|
||||
if (see_radius > 1) {
|
||||
if (row) {
|
||||
/* See if above us it okay first */
|
||||
switch (winat(ycheck, start)) {
|
||||
case '|':
|
||||
case '-':
|
||||
case WALL:
|
||||
case DOOR:
|
||||
case SECRETDOOR:
|
||||
/* No good, try one up */
|
||||
if (y > hero.y) ycheck++;
|
||||
else ycheck--;
|
||||
otherwise:
|
||||
see_radius = 1; /* Just look straight over the row */
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* See if above us it okay first */
|
||||
switch (winat(start, xcheck)) {
|
||||
case '|':
|
||||
case '-':
|
||||
case WALL:
|
||||
case DOOR:
|
||||
case SECRETDOOR:
|
||||
/* No good, try one over */
|
||||
if (x > hero.x) xcheck++;
|
||||
else xcheck--;
|
||||
otherwise:
|
||||
see_radius = 1; /* Just look straight up the column */
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Check boundary again */
|
||||
if (absy > see_radius && absx > see_radius) return(FALSE);
|
||||
|
||||
while (start != goal) {
|
||||
if (row) xcheck = start;
|
||||
else ycheck = start;
|
||||
switch (winat(ycheck, xcheck)) {
|
||||
case '|':
|
||||
case '-':
|
||||
case WALL:
|
||||
case DOOR:
|
||||
case SECRETDOOR:
|
||||
return(FALSE);
|
||||
}
|
||||
start += delta;
|
||||
}
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* moffset:
|
||||
* Calculate memory address for bits
|
||||
*/
|
||||
char *
|
||||
moffset(y, x)
|
||||
int y, x;
|
||||
{
|
||||
|
||||
return (bits + (y * (cols - 1)) + x);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* rmwall:
|
||||
* Removes appropriate walls from the maze
|
||||
*/
|
||||
rmwall(newy, newx, oldy, oldx)
|
||||
int newy, newx, oldy, oldx;
|
||||
{
|
||||
reg int xdif,ydif;
|
||||
|
||||
xdif = newx - oldx;
|
||||
ydif = newy - oldy;
|
||||
|
||||
*moffset((oldy * 2) + ydif + 1, (oldx * 2) + xdif + 1) = FALSE;
|
||||
findcells(newy, newx);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue