示例#1
0
void CHSInterface::LinkExitToRoom(HS_DBREF dbExit, HS_DBREF dbRoom)
{
#ifdef PENNMUSH                 // No change in code between versions
    Exits(dbExit) = dbRoom;
    PUSH(dbExit, Exits(dbRoom));
#endif

#if defined(TM3) || defined(MUX)
    s_Exits(dbRoom, insert_first(Exits(dbRoom), dbExit));
    s_Exits(dbExit, dbRoom);
    s_Location(dbExit, NOTHING);
    link_exit(GOD, dbExit, dbRoom);
#endif

}
示例#2
0
static void 
open_exit(dbref player, dbref loc, char *direction, char *linkto, int key)
{
    dbref exit;
    char *tpr_buff, *tprp_buff;

    if (!Good_obj(loc))
	return;

    if (!direction || !*direction) {
	notify_quiet(player, "Open where?");
	return;
    } else if (!controls(player, loc) && !could_doit(player, loc, A_LOPEN, 0, 0)) {
	notify_quiet(player, "Permission denied.");
	return;
    }
    exit = create_obj(player, TYPE_EXIT, direction, 0);
    if (exit == NOTHING)
	return;

    /* Initialize everything and link it in. */

    s_Exits(exit, loc);
    s_Next(exit, Exits(loc));
    s_Exits(loc, exit);

    /* and we're done */

    if ( !(key & SIDEEFFECT ) )
       notify_quiet(player, "Opened.");

    /* See if we should do a link */

    if (!linkto || !*linkto)
	return;

    loc = parse_linkable_room(player, linkto);
    if (loc != NOTHING) {

	/* Make sure the player passes the link lock */

	if ((loc != HOME) && !could_doit(player, loc, A_LLINK, 1, 0)) {
	    notify_quiet(player, "You can't link to there.");
	    return;
	}
	/* Link it if the player can pay for it */

	if (!payfor(player, mudconf.linkcost)) {
            tprp_buff = tpr_buff = alloc_lbuf("open_exit");
	    notify_quiet(player,
			 safe_tprintf(tpr_buff, &tprp_buff, "You don't have enough %s to link.",
				 mudconf.many_coins));
            free_lbuf(tpr_buff);
	} else {
	    s_Location(exit, loc);
	    if ( !(key & SIDEEFFECT ) )
	       notify_quiet(player, "Linked.");
	}
    }
}
示例#3
0
文件: look.c 项目: ccubed/MuDocker
/* Show the 'Obvious Exits' list for a room. Used in 'look' and 'examine'.
 * \param player The player looking
 * \param loc room whose exits we're showing
 * \param exit_name "Obvious Exits" string
 * \param pe_info the pe_info to use for evaluating EXITFORMAT and interact locks
 */
static void
look_exits(dbref player, dbref loc, const char *exit_name, NEW_PE_INFO *pe_info)
{
  dbref thing;
  char *tbuf1, *tbuf2, *nbuf;
  char *s1, *s2;
  char *p;
  int exit_count, this_exit, total_count;
  int texits;
  ufun_attrib ufun;
  PUEBLOBUFF;

  /* make sure location is a room */
  if (!IsRoom(loc))
    return;

  tbuf1 = (char *) mush_malloc(BUFFER_LEN, "string");
  tbuf2 = (char *) mush_malloc(BUFFER_LEN, "string");
  nbuf = (char *) mush_malloc(BUFFER_LEN, "string");
  if (!tbuf1 || !tbuf2 || !nbuf)
    mush_panic("Unable to allocate memory in look_exits");
  s1 = tbuf1;
  s2 = tbuf2;
  texits = exit_count = total_count = 0;
  this_exit = 1;

  if (fetch_ufun_attrib
      ("EXITFORMAT", loc, &ufun, UFUN_IGNORE_PERMS | UFUN_REQUIRE_ATTR)) {
    char *arg, *buff, *bp;
    PE_REGS *pe_regs = pe_regs_create(PE_REGS_ARG, "look_exits");

    arg = (char *) mush_malloc(BUFFER_LEN, "string");
    buff = (char *) mush_malloc(BUFFER_LEN, "string");
    if (!arg || !buff)
      mush_panic("Unable to allocate memory in look_exits");

    bp = arg;
    DOLIST(thing, Exits(loc)) {
      if (((Light(loc) || Light(thing)) || !(Dark(loc) || Dark(thing)))
          && can_interact(thing, player, INTERACT_SEE, pe_info)) {
        if (bp != arg)
          safe_chr(' ', arg, &bp);
        safe_dbref(thing, arg, &bp);
      }
    }
    *bp = '\0';
    pe_regs_setenv_nocopy(pe_regs, 0, arg);

    call_ufun(&ufun, buff, player, player, pe_info, pe_regs);

    pe_regs_free(pe_regs);
    notify_by(loc, player, buff);
    mush_free(tbuf1, "string");
    mush_free(tbuf2, "string");
    mush_free(nbuf, "string");
    mush_free(arg, "string");
    mush_free(buff, "string");
    return;
  }
示例#4
0
/* Clone an object. The new object is owned by the cloning player */
static dbref
clone_object(dbref player, dbref thing, const char *newname, int preserve)
{
  dbref clone;

  clone = new_object();

  Owner(clone) = Owner(player);
  Name(clone) = NULL;
  if (newname && *newname)
    set_name(clone, newname);
  else
    set_name(clone, Name(thing));
  s_Pennies(clone, Pennies(thing));
  AttrCount(clone) = 0;
  List(clone) = NULL;
  Locks(clone) = NULL;
  clone_locks(player, thing, clone);
  Zone(clone) = Zone(thing);
  Parent(clone) = Parent(thing);
  Flags(clone) = clone_flag_bitmask("FLAG", Flags(thing));
  if (!preserve) {
    clear_flag_internal(clone, "WIZARD");
    clear_flag_internal(clone, "ROYALTY");
    Warnings(clone) = 0;        /* zap warnings */
    Powers(clone) = new_flag_bitmask("POWER");  /* zap powers */
  } else {
    Powers(clone) = clone_flag_bitmask("POWER", Powers(thing));
    Warnings(clone) = Warnings(thing);
    if (Wizard(clone) || Royalty(clone) || Warnings(clone) ||
        !null_flagmask("POWER", Powers(clone)))
      notify(player,
             T
             ("Warning: @CLONE/PRESERVE on an object with WIZ, ROY, @powers, or @warnings."));
  }
  /* We give the clone the same modification time that its
   * other clone has, but update the creation time */
  ModTime(clone) = ModTime(thing);
  CreTime(clone) = mudtime;
  Type(clone) = Type(thing);

  Contents(clone) = Location(clone) = Next(clone) = NOTHING;
  if (IsRoom(thing))
    Exits(clone) = NOTHING;
  else
    Home(clone) = Home(thing);
  atr_cpy(clone, thing);

  queue_event(player, "OBJECT`CREATE", "%s,%s",
              unparse_objid(clone), unparse_objid(thing));
  return clone;

}
示例#5
0
文件: utils.c 项目: kymoon/pennmush
/** Given an exit, find the room that is its source through brute force.
 * This is used in pathological cases where the exit's own source
 * element is invalid.
 * \param door dbref of exit to find source of.
 * \return dbref of exit's source room, or NOTHING.
 */
dbref
find_entrance(dbref door)
{
  dbref room;
  dbref thing;
  for (room = 0; room < db_top; room++) {
    if (IsRoom(room)) {
      thing = Exits(room);
      while (thing != NOTHING) {
        if (thing == door)
          return room;
        thing = Next(thing);
      }
    }
  }
  return NOTHING;
}
示例#6
0
static bool match_exit_internal(dbref loc, dbref baseloc, int local)
{
    if (  !Good_obj(loc)
       || !Has_exits(loc))
    {
        return true;
    }

    dbref exit;
    bool result = false;
    int key;

    DOLIST(exit, Exits(loc))
    {
        if (exit == md.absolute_form)
        {
            key = 0;
            if (Examinable(md.player, loc))
            {
                key |= VE_LOC_XAM;
            }
            if (Dark(loc))
            {
                key |= VE_LOC_DARK;
            }
            if (Dark(baseloc))
            {
                key |= VE_BASE_DARK;
            }
            if (exit_visible(exit, md.player, key))
            {
                promote_match(exit, CON_DBREF | local);
                return true;
            }
        }
        if (matches_exit_from_list(md.string, PureName(exit)))
        {
            promote_match(exit, CON_COMPLETE | local);
            result = true;
        }
    }
    return result;
}
示例#7
0
HS_DBREF CHSInterface::GetFirstExit(HS_DBREF dbRoom)
{
    return Exits(dbRoom);
}
示例#8
0
void CR_ModuleEx::CreateFlowGraph64(CR_Addr64 entrance) {
    auto cf = Info64()->CodeFuncFromAddr(entrance);
    assert(cf);

    CR_Addr64Set leaders;
    leaders.insert(entrance);

    // insert jumpees
    auto& jumpees = cf->Jumpees();
    leaders.insert(jumpees.begin(), jumpees.end());

    // insert exits' next
    auto& exits = cf->Exits();
    for (auto addr : exits) {
        auto op_code = Info64()->OpCodeFromAddr(addr);
        auto size = op_code->Codes().size();
        auto next_addr = static_cast<CR_Addr64>(addr + size);
        leaders.insert(next_addr);
    }

    // insert jumpers' next
    auto& jumpers = cf->Jumpers();
    for (auto addr : jumpers) {
        auto op_code = Info64()->OpCodeFromAddr(addr);
        auto size = op_code->Codes().size();
        auto next_addr = static_cast<CR_Addr64>(addr + size);
        leaders.insert(next_addr);
    }

    // sort
    std::vector<CR_Addr64> vecLeaders(leaders.begin(), leaders.end());
    std::sort(vecLeaders.begin(), vecLeaders.end());

    // store leaders
    cf->Leaders() = std::move(leaders);

    const size_t size = vecLeaders.size() - 1;
    for (size_t i = 0; i < size; ++i) {
        // for every pair of two adjacent leaders
        auto addr1 = vecLeaders[i], addr2 = vecLeaders[i + 1];
        // prepare a basic block
        CR_BasicBlock64 block;
        block.m_addr = addr1;
        CR_Addr64 next_addr = cr_invalid_addr64;
        for (auto addr = addr1; addr < addr2; ) {
            if (cf->Leaders().count(addr)) {
                // set label at each leader
                block.AddLeaderLabel(addr);
            }
            // op.code from addr
            auto op_code = Info64()->OpCodeFromAddr(addr);
            if (op_code == NULL) {
                break;
            }
            auto type = op_code->OpCodeType();
            if (type == cr_OCT_JMP) {
                // jump
                auto oper = op_code->Operand(0);
                if (oper->GetOperandType() == cr_DF_IMM) {
                    block.m_jump_to = oper->Value64();  // jump to
                }
                next_addr = cr_invalid_addr64;
            } else if (type == cr_OCT_RETURN) {
                next_addr = cr_invalid_addr64;
            } else if (type == cr_OCT_JCC || type == cr_OCT_LOOP) {
                // conditional jump or loop
                auto oper = op_code->Operand(0);
                if (oper->GetOperandType() == cr_DF_IMM) {
                    block.m_jump_to = oper->Value64();  // jump to
                }
                block.m_cond_code = op_code->CondCode();
                next_addr =
                    static_cast<CR_Addr64>(addr + op_code->Codes().size());
            } else {
                next_addr =
                    static_cast<CR_Addr64>(addr + op_code->Codes().size());
            }
            // add op.code
            block.m_stmts.emplace_back(*op_code);
            // go to next addr
            addr += static_cast<CR_Addr64>(op_code->Codes().size());
        }
        // add label at last
        block.AddLeaderLabel(addr2);
        // set next addr
        block.m_next_addr = next_addr;
        // add block
        cf->BasicBlocks().emplace_back(block);
    }
} // CR_ModuleEx::CreateFlowGraph64
示例#9
0
BOOL CR_ModuleEx::_DisAsmAddr64(CR_Addr64 func, CR_Addr64 va) {
    if (!IsModuleLoaded() || !Is64Bit())
        return FALSE;

    // calculate
    int len;
    char outbuf[256];
    CR_Addr64 addr;

    // add or retrieve the code function
    auto cf = Info64()->CodeFuncFromAddr(func);
    if (cf == NULL) {
        Info64()->MapAddrToCodeFunc().emplace(func, make_shared<CR_CodeFunc64>());
        cf = Info64()->CodeFuncFromAddr(func);
    }
    assert(cf);
    if (func == va) {
        cf->Addr() = func;
    }

    auto pCode = CodeSectionHeader();
    assert(pCode);

    DWORD rva = RVAFromVA64(va);
    LPBYTE input = m_pLoadedImage + rva;
    LPBYTE iend = m_pLoadedImage + pCode->RVA + pCode->SizeOfRawData;
    while (input < iend) {
        // add or retrieve op.code
        auto oc = Info64()->OpCodeFromAddr(va);
        if (oc == NULL) {
            Info64()->MapAddrToOpCode().emplace(va, make_shared<CR_OpCode64>());
            oc = Info64()->OpCodeFromAddr(va);
            // set op.code address
            oc->Addr() = va;
        }
        assert(oc);
        if (oc->FuncAddrs().count(func) > 0)
            break;


        // add function address for this op.code
        oc->FuncAddrs().emplace(func);
        if (oc->FuncAddrs().size() > 1) {
            cf->FuncFlags() |= cr_FF_FUNCINFUNC;   // function in function
        }

        if (oc->Codes().empty()) {
            // disassemble
            len = disasm(input, outbuf, sizeof(outbuf), 64, va, false, 0);

            // parse insn
            if (!len || input + len > iend) {
                len = 1;
                oc->Name() = "???";
                oc->OpCodeType() = cr_OCT_UNKNOWN;
                // don't decompile if any unknown instruction.
                cf->FuncFlags() |= cr_FF_INVALID;
            } else {
                oc->Parse(outbuf);
            }

            // complement operand size
            oc->DeductOperandSizes();

            // add asm codes to op.code
            oc->Codes().insert(oc->Codes().end(), input, &input[len]);
        } else {
            len = int(oc->Codes().size());
        }

        BOOL bBreak = FALSE;
        switch (oc->OpCodeType()) {
        case cr_OCT_JCC:    // conditional jump
            switch (oc->Operand(0)->GetOperandType()) {
            case cr_DF_IMM:
                addr = oc->Operand(0)->Value64();
                cf->Jumpers().emplace(va);
                cf->Jumpees().emplace(addr);
                break;

            default:
                break;
            }
            break;

        case cr_OCT_JMP:    // jump
            switch (oc->Operand(0)->GetOperandType()) {
            case cr_DF_IMM:
                if (func == va) {
                    // func is jumper
                    cf->FuncFlags() |= cr_FF_JUMPERFUNC;

                    addr = oc->Operand(0)->Value64();
                    Info64()->Entrances().emplace(addr);
                    cf->Callers().emplace(addr);

                    auto newcf = Info64()->CodeFuncFromAddr(addr);
                    if (newcf == NULL) {
                        Info64()->MapAddrToCodeFunc().emplace(
                            addr, make_shared<CR_CodeFunc64>());
                        newcf = Info64()->CodeFuncFromAddr(addr);
                    }
                    newcf->Addr() = addr;
                    newcf->Callees().emplace(func);
                } else {
                    addr = oc->Operand(0)->Value64();
                    cf->Jumpers().emplace(va);
                    cf->Jumpees().emplace(addr);
                }
                break;

            case cr_DF_MEMIMM:
                if (func == va) {
                    // func is jumper
                    cf->FuncFlags() |= cr_FF_JUMPERFUNC;

                    bBreak = TRUE;
                }
                break;

            default:
                break;
            }
            bBreak = TRUE;
            break;

        case cr_OCT_CALL:   // call
            switch (oc->Operand(0)->GetOperandType()) {
            case cr_DF_IMM:
                // function call
                addr = oc->Operand(0)->Value64();
                Info64()->Entrances().emplace(addr);
                cf->Callees().emplace(addr);
                {
                    auto newcf = Info64()->CodeFuncFromAddr(addr);
                    if (newcf == NULL) {
                        Info64()->MapAddrToCodeFunc().emplace(
                            addr, make_shared<CR_CodeFunc64>());
                        newcf = Info64()->CodeFuncFromAddr(addr);
                    }
                    newcf->Addr() = addr;
                    newcf->Callers().emplace(func);
                }
                break;

            default:
                break;
            }
            break;

        case cr_OCT_RETURN: // return
            if (oc->Operands().size() && oc->Operand(0)->GetOperandType() == cr_DF_IMM) {
                cf->StackArgSizeRange().Set(oc->Operand(0)->Value64());
            } else {
                if (func == va) {
                    cf->FuncFlags() |= cr_FF_RETURNONLY;
                }
            }
            cf->Exits().insert(va);
            bBreak = TRUE;
            break;

        default:
            break;
        }

        if (bBreak)
            break;

        // move to next position
        input += len;
        va += len;
    }

    return TRUE;
} // CR_ModuleEx::_DisAsmAddr64
示例#10
0
static void
ct_exit(dbref player, dbref i, warn_type flags)
{
    dbref j, src, dst;
    int count = 0;
    int lt;

    /* i must be an exit, must be in a valid room, and must lead to a
     * different room
     * Remember, for exit i, Exits(i) = source room
     * and Location(i) = destination room
     */

    dst = Destination(i);
    if ((flags & W_EXIT_UNLINKED) && (dst == NOTHING))
        complain(player, i, "exit-unlinked",
                 T("exit is unlinked; anyone can steal it"));

    if ((flags & W_EXIT_UNLINKED) && dst == AMBIGUOUS) {
        ATTR *a;
        const char *var = "DESTINATION";
        a = atr_get(i, "DESTINATION");
        if (!a)
            a = atr_get(i, "EXITTO");
        if (a)
            var = "EXITTO";
        if (!a)
            complain(player, i, "exit-unlinked",
                     T("Variable exit has no %s attribute"), var);
        else {
            const char *x = atr_value(a);
            if (!x || !*x)
                complain(player, i, "exit-unlinked",
                         T("Variable exit has empty %s attribute"), var);
        }
    }

    if (!Dark(i)) {
        if (flags & W_EXIT_MSGS) {
            lt = warning_lock_type(getlock(i, Basic_Lock));
            if ((lt & W_UNLOCKED) &&
                    (!atr_get(i, "OSUCCESS") || !atr_get(i, "ODROP") ||
                     !atr_get(i, "SUCCESS")))
                complain(player, i, "exit-msgs",
                         T("possibly unlocked exit missing succ/osucc/odrop"));
            if ((lt & W_LOCKED) && !atr_get(i, "FAILURE"))
                complain(player, i, "exit-msgs",
                         T("possibly locked exit missing fail"));
        }
        if (flags & W_EXIT_DESC) {
            if (!atr_get(i, "DESCRIBE"))
                complain(player, i, "exit-desc", T("exit is missing description"));
        }
    }
    src = Source(i);
    if (!GoodObject(src) || !IsRoom(src))
        return;
    if (src == dst)
        return;
    /* Don't complain about exits linked to HOME or variable exits. */
    if (!GoodObject(dst))
        return;

    for (j = Exits(dst); GoodObject(j); j = Next(j))
        if (Location(j) == src) {
            if (!(flags & W_EXIT_MULTIPLE))
                return;
            else
                count++;
        }
    if ((count == 0) && (flags & W_EXIT_ONEWAY))
        complain(player, i, "exit-oneway", T("exit has no return exit"));
    else if ((count > 1) && (flags & W_EXIT_MULTIPLE))
        complain(player, i, "exit-multiple",
                 T("exit has multiple (%d) return exits"), count);
}
示例#11
0
文件: db_rw.c 项目: chazu/btmux
static int db_write_object(FILE * f, dbref i, int db_format, int flags)
{
	ATTR *a;
	char *got, *as;
	dbref aowner;
	int ca, aflags, save, j;
	BOOLEXP *tempbool;

	if(!(flags & V_ATRNAME))
		putstring(f, Name(i));
	putref(f, Location(i));
	if(flags & V_ZONE)
		putref(f, Zone(i));
	putref(f, Contents(i));
	putref(f, Exits(i));
	if(flags & V_LINK)
		putref(f, Link(i));
	putref(f, Next(i));
	if(!(flags & V_ATRKEY)) {
		got = atr_get(i, A_LOCK, &aowner, &aflags);
		tempbool = parse_boolexp(GOD, got, 1);
		free_lbuf(got);
		putboolexp(f, tempbool);
		if(tempbool)
			free_bool(tempbool);
	}
	putref(f, Owner(i));
	if(flags & V_PARENT)
		putref(f, Parent(i));
	if(!(flags & V_ATRMONEY))
		putref(f, Pennies(i));
	putref(f, Flags(i));
	if(flags & V_XFLAGS)
		putref(f, Flags2(i));
	if(flags & V_3FLAGS)
		putref(f, Flags3(i));
	if(flags & V_POWERS) {
		putref(f, Powers(i));
		putref(f, Powers2(i));
	}
	/*
	 * write the attribute list 
	 */

	if((!(flags & V_GDBM)) || (mudstate.panicking == 1)) {
		for(ca = atr_head(i, &as); ca; ca = atr_next(&as)) {
			save = 0;
			a = atr_num(ca);
			if(a)
				j = a->number;
			else
				j = -1;

			if(j > 0) {
				switch (j) {
				case A_NAME:
					if(flags & V_ATRNAME)
						save = 1;
					break;
				case A_LOCK:
					if(flags & V_ATRKEY)
						save = 1;
					break;
				case A_LIST:
				case A_MONEY:
					break;
				default:
					save = 1;
				}
			}
			if(save) {
				got = atr_get_raw(i, j);
				fprintf(f, ">%d\n", j);
				putstring(f, got);
			}
		}
		fprintf(f, "<\n");
	}
	return 0;
}
示例#12
0
文件: create.c 项目: tkrajcar/pypenn
/** Create an exit.
 * This function opens an exit and optionally links it.
 * \param player the enactor.
 * \param direction the name of the exit.
 * \param linkto the room to link to, as a string.
 * \param pseudo a phony location for player if a back exit is needed. This is bpass by do_open() as the source room of the back exit.
 * \return dbref of the new exit, or NOTHING.
 */
dbref
do_real_open(dbref player, const char *direction, const char *linkto,
             dbref pseudo)
{
  dbref loc =
    (pseudo !=
     NOTHING) ? pseudo : (IsExit(player) ? Source(player) : (IsRoom(player) ?
                                                             player :
                                                             Location(player)));
  dbref new_exit;
  char *flaglist, *flagname;
  char flagbuff[BUFFER_LEN];
  char *name = NULL;
  char *alias = NULL;

  if (!command_check_byname(player, "@dig")) {
    notify(player, T("Permission denied."));
    return NOTHING;
  }
  if ((loc == NOTHING) || (!IsRoom(loc))) {
    notify(player, T("Sorry, you can only make exits out of rooms."));
    return NOTHING;
  }
  if (Going(loc)) {
    notify(player, T("You can't make an exit in a place that's crumbling."));
    return NOTHING;
  }
  if (!*direction) {
    notify(player, T("Open where?"));
    return NOTHING;
  } else
    if (ok_object_name
        ((char *) direction, player, NOTHING, TYPE_EXIT, &name, &alias) < 1) {
    notify(player, T("That's a strange name for an exit!"));
    if (name)
      mush_free(name, "name.newname");
    if (alias)
      mush_free(alias, "name.newname");
    return NOTHING;
  }
  if (!Open_Anywhere(player) && !controls(player, loc)) {
    notify(player, T("Permission denied."));
  } else if (can_pay_fees(player, EXIT_COST)) {
    /* create the exit */
    new_exit = new_object();

    /* initialize everything */
    set_name(new_exit, name);
    if (alias && *alias != ALIAS_DELIMITER)
      atr_add(new_exit, "ALIAS", alias, player, 0);
    Owner(new_exit) = Owner(player);
    Zone(new_exit) = Zone(player);
    Source(new_exit) = loc;
    Type(new_exit) = TYPE_EXIT;
    Flags(new_exit) = new_flag_bitmask("FLAG");
    strcpy(flagbuff, options.exit_flags);
    flaglist = trim_space_sep(flagbuff, ' ');
    if (*flaglist != '\0') {
      while (flaglist) {
        flagname = split_token(&flaglist, ' ');
        twiddle_flag_internal("FLAG", new_exit, flagname, 0);
      }
    }

    mush_free(name, "name.newname");
    if (alias)
      mush_free(alias, "name.newname");

    /* link it in */
    PUSH(new_exit, Exits(loc));

    /* and we're done */
    notify_format(player, T("Opened exit %s"), unparse_dbref(new_exit));

    /* check second arg to see if we should do a link */
    if (linkto && *linkto != '\0') {
      notify(player, T("Trying to link..."));
      if ((loc = check_var_link(linkto)) == NOTHING)
        loc = parse_linkable_room(player, linkto);
      if (loc != NOTHING) {
        if (!payfor(player, LINK_COST)) {
          notify_format(player, T("You don't have enough %s to link."), MONIES);
        } else {
          /* it's ok, link it */
          Location(new_exit) = loc;
          notify_format(player, T("Linked exit #%d to #%d"), new_exit, loc);
        }
      }
    }
    current_state.exits++;
    local_data_create(new_exit);
    queue_event(player, "OBJECT`CREATE", "%s", unparse_objid(new_exit));
    return new_exit;
  }
  if (name)
    mush_free(name, "name.newname");
  if (alias)
    mush_free(alias, "name.newname");

  return NOTHING;
}
示例#13
0
文件: create.c 项目: tkrajcar/pypenn
/** Clone an object.
 * \verbatim
 * This is the top-level function for @clone, which creates a duplicate
 * of a (non-player) object.
 * \endverbatim
 * \param player the enactor.
 * \param name the name of the object to clone.
 * \param newname the name to give the duplicate.
 * \param preserve if 1, preserve ownership and privileges on duplicate.
 * \paran newdbref the (unparsed) dbref to give the object, or NULL to use the next free
 * \return dbref of the duplicate, or NOTHING.
 */
dbref
do_clone(dbref player, char *name, char *newname, int preserve, char *newdbref)
{
  dbref clone, thing;
  char dbnum[BUFFER_LEN];

  thing = noisy_match_result(player, name, NOTYPE, MAT_EVERYTHING);
  if ((thing == NOTHING))
    return NOTHING;

  if (newname && *newname && !ok_name(newname, IsExit(thing))) {
    notify(player, T("That is not a reasonable name."));
    return NOTHING;
  }

  if (!controls(player, thing) || IsPlayer(thing) ||
      (IsRoom(thing) && !command_check_byname(player, "@dig")) ||
      (IsExit(thing) && !command_check_byname(player, "@open")) ||
      (IsThing(thing) && !command_check_byname(player, "@create"))) {
    notify(player, T("Permission denied."));
    return NOTHING;
  }
  /* don't allow cloning of destructed things */
  if (IsGarbage(thing)) {
    notify(player, T("There's nothing left of it to clone!"));
    return NOTHING;
  }
  if (preserve && !Wizard(player)) {
    notify(player, T("You cannot @CLONE/PRESERVE. Use normal @CLONE instead."));
    return NOTHING;
  }

  if (!make_first_free_wrapper(player, newdbref)) {
    return NOTHING;
  }

  /* make sure owner can afford it */
  switch (Typeof(thing)) {
  case TYPE_THING:
    if (can_pay_fees(player, Pennies(thing))) {
      clone = clone_object(player, thing, newname, preserve);
      notify_format(player, T("Cloned: Object %s."), unparse_dbref(clone));
      if (IsRoom(player))
        moveto(clone, player, player, "cloned");
      else
        moveto(clone, Location(player), player, "cloned");
      current_state.things++;
      local_data_clone(clone, thing);
      real_did_it(player, clone, NULL, NULL, NULL, NULL, "ACLONE", NOTHING,
                  global_eval_context.wenv, 0);
      return clone;
    }
    return NOTHING;
    break;
  case TYPE_ROOM:
    if (can_pay_fees(player, ROOM_COST)) {
      clone = clone_object(player, thing, newname, preserve);
      Exits(clone) = NOTHING;
      notify_format(player, T("Cloned: Room #%d."), clone);
      current_state.rooms++;
      local_data_clone(clone, thing);
      real_did_it(player, clone, NULL, NULL, NULL, NULL, "ACLONE", NOTHING,
                  global_eval_context.wenv, 0);
      return clone;
    }
    return NOTHING;
    break;
  case TYPE_EXIT:
    /* For exits, we don't want people to be able to link it to
       a location they can't with @open. So, all this stuff.
     */
    switch (Location(thing)) {
    case NOTHING:
      strcpy(dbnum, "#-1");
      break;
    case HOME:
      strcpy(dbnum, "home");
      break;
    case AMBIGUOUS:
      strcpy(dbnum, "variable");
      break;
    default:
      strcpy(dbnum, unparse_dbref(Location(thing)));
    }
    if (newname && *newname)
      clone = do_real_open(player, newname, dbnum, NOTHING);
    else
      clone = do_real_open(player, Name(thing), dbnum, NOTHING);
    if (!GoodObject(clone)) {
      return NOTHING;
    } else {
      atr_cpy(clone, thing);
      clone_locks(player, thing, clone);
      Zone(clone) = Zone(thing);
      Parent(clone) = Parent(thing);
      Flags(clone) = clone_flag_bitmask("FLAG", Flags(thing));
      if (!preserve) {
        clear_flag_internal(clone, "WIZARD");
        clear_flag_internal(clone, "ROYALTY");
        Warnings(clone) = 0;    /* zap warnings */
        Powers(clone) = new_flag_bitmask("POWER");      /* zap powers */
      } else {
        Warnings(clone) = Warnings(thing);
        Powers(clone) = clone_flag_bitmask("POWER", Powers(thing));
      }
      if (Wizard(clone) || Royalty(clone) || Warnings(clone) ||
          !null_flagmask("POWER", Powers(clone)))
        notify(player,
               T
               ("Warning: @CLONE/PRESERVE on an object with WIZ, ROY, @powers, or @warnings."));
      notify_format(player, T("Cloned: Exit #%d."), clone);
      local_data_clone(clone, thing);
      return clone;
    }
  }
  return NOTHING;

}