view xrogue/rooms.c @ 211:382ff498acdd

Initialize some more pointers for the benefit of MSVC. There should be no more errors with Visual Studio 2015, in Debug or Release mode.
author John "Elwin" Edwards
date Thu, 21 Jan 2016 21:10:23 -0500
parents ce0cf824c192
children f54901b9c39b
line wrap: on
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/*
    rooms.c - Draw the nine rooms on the screen
    
    XRogue: Expeditions into the Dungeons of Doom
    Copyright (C) 1991 Robert Pietkivitch
    All rights reserved.
    
    Based on "Advanced Rogue"
    Copyright (C) 1984, 1985 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 <stdlib.h>
#include <curses.h>
#include "rogue.h"

do_rooms()
{
    register int i;
    register struct room *rp;
    register struct linked_list *item;
    register struct thing *tp;
    int left_out;
    int num_monsters;
    int which_monster;
    int j;
    coord top;
    coord bsze;
    coord mp;
    coord *np;

    /*
     * bsze is the maximum room size
     */
    bsze.x = cols/3;
    bsze.y = (lines-2)/3;
    /*
     * Clear things for a new level
     */
    for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
        rp->r_flags = 0;
        _r_free_fire_list(&rp->r_fires);
    }
    /*
     * Put the gone rooms, if any, on the level
     */
    left_out = rnd(4);
    for (i = 0; i < left_out; i++)
        rooms[rnd_room()].r_flags |= ISGONE;
    /*
     * dig and populate all the rooms on the level
     */
    for (i = 0, rp = rooms; i < MAXROOMS; rp++, i++)
    {
        bool has_gold=FALSE;

        /*
         * Find upper left corner of box that this room goes in
         */
        top.x = (i%3)*bsze.x;
        top.y = i/3*bsze.y + 1;
        if (rp->r_flags & ISGONE)
        {
            /*
             * Place a gone room.  Make certain that there is a blank line
             * for passage drawing.
             */
            do
            {
                rp->r_pos.x = top.x + rnd(bsze.x-2) + 1;
                rp->r_pos.y = top.y + rnd(bsze.y-2) + 1;
                rp->r_max.x = -cols;
                rp->r_max.y = -lines;
            } until(rp->r_pos.y > 0 && rp->r_pos.y < lines-2);
            continue;
        }
        if (rnd(10) < level-1)
            rp->r_flags |= ISDARK;
        /*
         * Find a place and size for a random room
         */
        do
        {
            rp->r_max.x = rnd(bsze.x - 4) + 4;
            rp->r_max.y = rnd(bsze.y - 4) + 4;
            rp->r_pos.x = top.x + rnd(bsze.x - rp->r_max.x);
            rp->r_pos.y = top.y + rnd(bsze.y - rp->r_max.y);
        } until (rp->r_pos.y != 0);

        /* Draw the room */
        draw_room(rp);

        /*
         * Put the gold in
         */
        if (rnd(100) < 55 && level >= cur_max)
        {
            register struct linked_list *item;
            register struct object *cur;
            coord tp;

            has_gold = TRUE;    /* This room has gold in it */

            item = spec_item(GOLD, NULL, NULL, NULL);
            cur = OBJPTR(item);

            /* Put the gold into the level list of items */
            attach(lvl_obj, item);

            /* Put it somewhere */
            rnd_pos(rp, &tp);
            mvaddch(tp.y, tp.x, GOLD);
            cur->o_pos = tp;
            if (roomin(&tp) != rp) {
                endwin();
                abort();
            }
        }

        /*
         * Put the monster in
         */
        if (rnd(100) < (has_gold ? 80 : 25) + vlevel/2)
        {
            do
            {
                rnd_pos(rp, &mp);
            } until(mvwinch(stdscr, mp.y, mp.x) == FLOOR);
            which_monster = randmonster(FALSE, FALSE);
            num_monsters = 1;
            /*
             * see if we should make a whole bunch
             */
            for (j=0; j<MAXFLAGS; j++) {
                if (monsters[which_monster].m_flags[j] == AREMANY)
                        num_monsters = roll(7,2);
            }
            for (j=0; j<num_monsters; j++) {
                    if ((np = fallpos(&mp, FALSE, 2)) != NULL &&
                         mvwinch(stdscr, np->y, np->x) == FLOOR) {
                            item = new_item(sizeof *tp);
                            tp = THINGPTR(item);
                            new_monster(item, which_monster, np, FALSE);
                            /*
                             * See if we want to give it a treasure to 
                             * carry around.
                             */
                            carry_obj(tp, monsters[tp->t_index].m_carry);
                            tp->t_no_move = movement(tp);

                            /*
                             * If it has a fire, mark it
                             */
                            if (on(*tp, HASFIRE)) {
                                register struct linked_list *fire_item;

                                fire_item = creat_item();
                                ldata(fire_item) = (char *) tp;
                                attach(rp->r_fires, fire_item);
                                rp->r_flags |= HASFIRE;
                            }
                    }
            }
        }
    }
}

/*
 * Given a room pointer and a pointer to a door, supposedly in that room,
 * return the coordinates of the entrance to the doorway.
 */

coord *
doorway(rp, door)
register struct room *rp;
register coord *door;
{
    register int misses = 0;
    static coord answer;

    /* Do we have decent parameters? */
    if (rp == NULL || door == NULL) return(NULL);

    /* Initialize the answer to be the door, then calculate the offset */
    answer = *door;

    /* Calculate the x-offset */
    if (door->x == rp->r_pos.x) answer.x++;
    else if (door->x == rp->r_pos.x + rp->r_max.x - 1) answer.x--;
    else misses++;

    /* Calculate the y-offset */
    if (door->y == rp->r_pos.y) answer.y++;
    else if (door->y == rp->r_pos.y + rp->r_max.y - 1) answer.y--;
    else misses++;

    if (misses <= 1) return(&answer);
    else return(NULL);
}

/*
 * Draw a box around a room
 */

draw_room(rp)
register struct room *rp;
{
    register int j, k;

    move(rp->r_pos.y, rp->r_pos.x+1);
    vert(rp->r_max.y-2);                                /* Draw left side */
    move(rp->r_pos.y+rp->r_max.y-1, rp->r_pos.x);
    horiz(rp->r_max.x);                                 /* Draw bottom */
    move(rp->r_pos.y, rp->r_pos.x);
    horiz(rp->r_max.x);                                 /* Draw top */
    vert(rp->r_max.y-2);                                /* Draw right side */
    /*
     * Put the floor down
     */
    for (j = 1; j < rp->r_max.y-1; j++)
    {
        move(rp->r_pos.y + j, rp->r_pos.x+1);
        for (k = 1; k < rp->r_max.x-1; k++)
            addch(FLOOR);
    }
}

/*
 * horiz:
 *      draw a horizontal line
 */

horiz(cnt)
register int cnt;
{
    while (cnt--)
        addch(HORZWALL);
}

/*
 * rnd_pos:
 *      pick a random spot in a room
 */

rnd_pos(rp, cp)
register struct room *rp;
register coord *cp;
{
    cp->x = rp->r_pos.x + rnd(rp->r_max.x-2) + 1;
    cp->y = rp->r_pos.y + rnd(rp->r_max.y-2) + 1;
}



/*
 * roomin:
 *      Find what room some coordinates are in. NULL means they aren't
 *      in any room.
 */

struct room *
roomin(cp)
register coord *cp;
{
    register struct room *rp;

    for (rp = rooms; rp < &rooms[MAXROOMS]; rp++)
        if (inroom(rp, cp))
            return rp;
    return NULL;
}

/*
 * vert:
 *      draw a vertical line
 */

vert(cnt)
register int cnt;
{
    register int x, y;

    getyx(stdscr, y, x);
    x--;
    while (cnt--) {
        move(++y, x);
        addch(VERTWALL);
    }
}