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/*
* NetCosm - a MUD server
* Copyright (C) 2016 Franklin Wei
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "globals.h"
#include "obj.h"
/* Our world is an array of rooms, each having a list of objects in
them, as well as actions that can be performed in the room. Objects
are added by hooks in rooms, which are provided by the world
module. */
typedef enum room_id { ROOM_NONE = -1 } room_id;
typedef struct child_data user_t;
enum direction_t { DIR_N = 0, DIR_NE, DIR_E, DIR_SE, DIR_S, DIR_SW, DIR_W, DIR_NW, DIR_UP, DIR_DN, DIR_IN, DIR_OT, NUM_DIRECTIONS };
/* the data we get from a world module */
struct roomdata_t {
/* the non-const pointers can be modified by the world module */
const char * const uniq_id;
/* mutable properties */
char *name;
char *desc;
const char * const adjacent[NUM_DIRECTIONS];
void (* const hook_init)(room_id id);
void (* const hook_enter)(room_id room, user_t *user);
void (* const hook_leave)(room_id room, user_t *user);
};
struct verb_t {
const char *name;
/* toks is strtok_r's pointer */
void (*execute)(const char *toks, user_t *user);
};
struct room_t {
room_id id;
struct roomdata_t data;
room_id adjacent[NUM_DIRECTIONS];
/* hash maps */
void *objects; /* object name -> object */
void *verbs;
void *users; /* username -> child_data */
};
/* room/world */
void world_init(const struct roomdata_t *data, size_t sz, const char *name);
bool world_load(const char *fname, const struct roomdata_t *data, size_t data_sz, const char *world_name);
void world_save(const char *fname);
struct room_t *room_get(room_id id);
bool room_user_add(room_id id, struct child_data *child);
bool room_user_del(room_id id, struct child_data *child);
/* on the first call, room should be a valid room id, and *save should
* point to a void pointer. On subsequent calls, room should be
* ROOM_NONE, and *save should remain unchanged from the previous
* call */
struct object_t *room_obj_iterate(room_id room, void **save);
/* new should point to a new object allocated with obj_new(), with
* 'name' properly set */
bool room_obj_add(room_id room, struct object_t *obj);
/* obj should be all lowercase */
struct object_t *room_obj_get(room_id room, const char *obj);
size_t room_obj_count(room_id room);
bool room_obj_del(room_id room, const char *name);
void world_free(void);
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