add a couple of variables to speed up UID lookups. Based on the assumption new visual gears and gears will tend to be at the end of the list. Set them on successful lookup or script gear creation, clear on delete. Oh also pick up a couple of TrevInc's translation changes
(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2010 Andrey Korotaev <unC0Rr@gmail.com>
*
* 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; version 2 of the License
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*)
{$INCLUDE "options.inc"}
unit uRandom;
interface
uses uFloat;
{$INCLUDE "config.inc"}
procedure initModule;
procedure freeModule;
procedure SetRandomSeed(Seed: shortstring);
function GetRandom: hwFloat; overload;
function GetRandom(m: LongWord): LongWord; overload;
function rndSign(num: hwFloat): hwFloat;
implementation
var cirbuf: array[0..63] of Longword;
n: byte;
function GetNext: Longword;
begin
n:= (n + 1) and $3F;
cirbuf[n]:=
(cirbuf[(n + 40) and $3F] + {n - 24 mod 64}
cirbuf[(n + 9) and $3F]) {n - 55 mod 64}
and $7FFFFFFF; {mod 2^31}
GetNext:= cirbuf[n]
end;
procedure SetRandomSeed(Seed: shortstring);
var i: Longword;
begin
n:= 54;
if Length(Seed) > 54 then Seed:= copy(Seed, 1, 54); // not 55 to ensure we have odd numbers in cirbuf
for i:= 0 to Pred(Length(Seed)) do
cirbuf[i]:= byte(Seed[i + 1]);
for i:= Length(Seed) to 54 do
cirbuf[i]:= $A98765 + 68; // odd number
for i:= 0 to 1023 do GetNext
end;
function GetRandom: hwFloat;
begin
GetNext;
GetRandom.isNegative:= false;
GetRandom.QWordValue:= GetNext
end;
function GetRandom(m: LongWord): LongWord;
begin
GetNext;
GetRandom:= GetNext mod m
end;
function rndSign(num: hwFloat): hwFloat;
begin
num.isNegative:= odd(GetNext);
rndSign:= num
end;
procedure initModule;
begin
n:= 54;
FillChar(cirbuf, 64*sizeof(Longword), 0);
end;
procedure freeModule;
begin
end;
end.