#include "copyright.h" /* Predicates for testing various conditions */ #include <ctype.h> #include "db.h" #include "interface.h" #include "config.h" #include "externs.h" int can_link_to(dbref who, dbref where) { return(where >= 0 && where < db_top && Typeof(where) == TYPE_ROOM && (controls(who, where) || (db[where].flags & LINK_OK))); } int could_doit(dbref player, dbref thing) { dbref key; int status; if(Typeof(thing) != TYPE_ROOM && db[thing].location == NOTHING) return 0; if((key = db[thing].key) == NOTHING) return 1; status = (player == key || member(key, db[player].contents)); return((db[thing].flags & ANTILOCK) ? !status : status); } int can_doit(dbref player, dbref thing, const char *default_fail_msg) { dbref loc; char buf[BUFFER_LEN]; if((loc = getloc(player)) == NOTHING) return 0; if(!could_doit(player, thing)) { /* can't do it */ if(db[thing].fail_message) { notify(player, db[thing].fail_message); } else if(default_fail_msg) { notify(player, default_fail_msg); } if(db[thing].ofail) { sprintf(buf, "%s %s", db[player].name, db[thing].ofail); notify_except(db[loc].contents, player, buf); } return 0; } else { /* can do it */ if(db[thing].succ_message) { notify(player, db[thing].succ_message); } if(db[thing].osuccess) { sprintf(buf, "%s %s", db[player].name, db[thing].osuccess); notify_except(db[loc].contents, player, buf); } return 1; } } int can_see(dbref player, dbref thing, int can_see_loc) { if(player == thing || Typeof(thing) == TYPE_EXIT) { return 0; } else if(can_see_loc) { return(!Dark(thing) || controls(player, thing)); } else { /* can't see loc */ return(controls(player, thing)); } } int controls(dbref who, dbref what) { /* Wizard controls everything */ /* owners control their stuff */ return(what >= 0 && what < db_top && (Wizard(who) || who == db[what].owner)); } int can_link(dbref who, dbref what) { return((Typeof(what) == TYPE_EXIT && db[what].location == NOTHING) || controls(who, what)); } int payfor(dbref who, int cost) { if(Wizard(who)) { return 1; } else if(db[who].pennies >= cost) { db[who].pennies -= cost; return 1; } else { return 0; } } int ok_name(const char *name) { return (name && *name && *name != LOOKUP_TOKEN && *name != NUMBER_TOKEN && string_compare(name, "me") && string_compare(name, "home") && string_compare(name, "here")); } int ok_player_name(const char *name) { const char *scan; if(!ok_name(name)) return 0; for(scan = name; *scan; scan++) { if(!isgraph(*scan)) { return 0; } } /* lookup name to avoid conflicts */ return (lookup_player(name) == NOTHING); }