random_maps/monster.c

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/************************************************************************
*            Atrinik, a Multiplayer Online Role Playing Game            *
*                                                                       *
*    Copyright (C) 2009-2011 Alex Tokar and Atrinik Development Team    *
*                                                                       *
* Fork from Daimonin (Massive Multiplayer Online Role Playing Game)     *
* and Crossfire (Multiplayer game for X-windows).                       *
*                                                                       *
* This program is free software; you can redistribute it and/or modify  *
* it under the terms of the GNU General Public License as published by  *
* the Free Software Foundation; either version 2 of the License, or     *
* (at your option) any later version.                                   *
*                                                                       *
* This program is distributed in the hope that it will be useful,       *
* but WITHOUT ANY WARRANTY; without even the implied warranty of        *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
* GNU General Public License for more details.                          *
*                                                                       *
* You should have received a copy of the GNU General Public License     *
* along with this program; if not, write to the Free Software           *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.             *
*                                                                       *
* The author can be reached at admin@atrinik.org                        *
************************************************************************/

#include <global.h>

void insert_multisquare_ob_in_map(object *new_obj, mapstruct *map)
{
    int x, y;
    archetype *at;
    object *old_seg;
    object *head;

    /* first insert the head */
    insert_ob_in_map(new_obj, map, new_obj, INS_NO_MERGE | INS_NO_WALK_ON);

    x = new_obj->x;
    y = new_obj->y;
    old_seg = new_obj;
    head = new_obj;

    for (at = new_obj->arch->more; at != NULL; at = at->more)
    {
        object *new_seg = arch_to_object(at);

        new_seg->x = x + at->clone.x;
        new_seg->y = y + at->clone.y;
        new_seg->map = old_seg->map;

        insert_ob_in_map(new_seg, new_seg->map, new_seg, INS_NO_MERGE | INS_NO_WALK_ON);

        new_seg->head = head;
        old_seg->more = new_seg;
        old_seg = new_seg;
    }

    old_seg->more = NULL;
}

void place_monsters(mapstruct *map, char *monsterstyle, int difficulty, RMParms *RP)
{
    mapstruct *style_map = NULL;
    int failed_placements = 0, number_monsters = 0;

    style_map = find_style("/styles/monsterstyles", monsterstyle, difficulty);

    if (style_map == NULL)
    {
        return;
    }

    while (number_monsters < RP->num_monsters && failed_placements < 100)
    {
        object *this_monster = pick_random_object(style_map);
        int x, y, freeindex;

        if (this_monster == NULL)
        {
            return;
        }

        x = RANDOM() % RP->Xsize;
        y = RANDOM() % RP->Ysize;
        freeindex = find_first_free_spot(this_monster->arch, NULL, map, x, y);

        if (freeindex != -1)
        {
            object *new_monster = object_create_clone(this_monster);

            x += freearr_x[freeindex];
            y += freearr_y[freeindex];
            new_monster->x = x;
            new_monster->y = y;
            insert_multisquare_ob_in_map(new_monster, map);
            number_monsters++;
        }
        else
        {
            failed_placements++;
        }
    }
}