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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
typedef enum room_id { ROOM_NONE = -1 } room_id;
typedef unsigned __int128 obj_id;
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 };
struct user_t {
struct child_data *data;
struct user_t *next;
};
/* 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, struct user_t *user);
void (* const hook_leave)(room_id room, struct user_t *user);
};
struct object_t {
obj_id id;
const char *class;
const char *name; /* no articles: "a", "an", "the" */
bool proper; /* whether to use "the" in describing this object */
void *userdata;
void (*hook_serialize)(int fd, struct object_t*);
void (*hook_take)(struct object_t*, struct user_t *user);
void (*hook_drop)(struct object_t*, struct user_t *user);
void (*hook_use)(struct object_t*, struct user_t *user);
void (*hook_destroy)(struct object_t*);
};
struct verb_t {
const char *name;
/* toks is strtok_r's pointer */
void (*execute)(const char *toks, struct user_t *user);
};
struct room_t {
room_id id;
struct roomdata_t data;
room_id adjacent[NUM_DIRECTIONS];
/* arrays instead of linked lists because insertion should be rare for these */
size_t objects_sz;
struct object_t *objects;
size_t verbs_sz;
struct verb_t *verbs;
/* linked list for users, random access is rare */
struct user_t *users;
int num_users;
};
/* 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);
struct object_t *obj_new(void);
void world_free(void);
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