Remove gstHHDriven flag when hedgehog get into the water. Fixes some odd cases.
(* * Hedgewars, a free turn based strategy game * Copyright (c) 2004-2007 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 *)unit uSHA;interfaceuses SDLh;type TSHA1Context = packed record H: array[0..4] of LongWord; Length, CurrLength: Int64; Buf: array[0..63] of byte; end; TSHA1Digest = array[0..4] of LongWord;procedure SHA1Init(var Context: TSHA1Context);procedure SHA1Update(var Context: TSHA1Context; Buf: PByteArray; Length: LongWord);procedure SHA1UpdateLongwords(var Context: TSHA1Context; Buf: PLongwordArray; Length: LongWord);function SHA1Final(Context: TSHA1Context): TSHA1Digest;implementationfunction rol(x: LongWord; y: Byte): LongWord;begin rol:= (X shl y) or (X shr (32 - y))end;function Ft(t, b, c, d: LongWord): LongWord;begincase t of 0..19: Ft := (b and c) or ((not b) and d); 20..39: Ft := b xor c xor d; 40..59: Ft := (b and c) or (b and d) or (c and d); else Ft := b xor c xor d; end;end;function Kt(t: Byte): LongWord;begin case t of 0..19: Kt := $5A827999; 20..39: Kt := $6ED9EBA1; 40..59: Kt := $8F1BBCDC; else Kt := $CA62C1D6 end;end;procedure SHA1Hash(var Context: TSHA1Context);var S: array[0..4 ] of LongWord; W: array[0..79] of LongWord; i, t: LongWord;beginmove(Context.H, S, sizeof(S));for i:= 0 to 15 do SDLNet_Write32(PLongWordArray(@Context.Buf)^[i], @W[i]);for i := 16 to 79 do W[i] := rol(W[i - 3] xor W[i - 8] xor W[i - 14] xor W[i - 16], 1);for i := 0 to 79 do begin t:= rol(S[0], 5) + Ft(i, S[1], S[2], S[3]) + S[4] + W[i] + Kt(i); S[4]:= S[3]; S[3]:= S[2]; S[2]:= rol(S[1], 30); S[1]:= S[0]; S[0]:= t end;for i := 0 to 4 do Context.H[i]:= Context.H[i] + S[i]end;procedure SHA1Init(var Context: TSHA1Context);begin with Context do begin Length := 0; CurrLength:= 0; H[0]:= $67452301; H[1]:= $EFCDAB89; H[2]:= $98BADCFE; H[3]:= $10325476; H[4]:= $C3D2E1F0 endend;procedure SHA1Update(var Context: TSHA1Context; Buf: PByteArray; Length: LongWord);var i: Longword;beginfor i:= 0 to Pred(Length) do begin Context.Buf[Context.CurrLength]:= Buf^[i]; inc(Context.CurrLength); if Context.CurrLength = 64 then begin SHA1Hash(Context); inc(Context.Length, 512); Context.CurrLength:= 0 end endend;procedure SHA1UpdateLongwords(var Context: TSHA1Context; Buf: PLongwordArray; Length: LongWord);var i: Longword;beginfor i:= 0 to Pred(Length div 4) do begin SDLNet_Write32(Buf^[i], @Context.Buf[Context.CurrLength]); inc(Context.CurrLength, 4); if Context.CurrLength = 64 then begin SHA1Hash(Context); inc(Context.Length, 512); Context.CurrLength:= 0 end endend;function SHA1Final(Context: TSHA1Context): TSHA1Digest;var i: LongWord;beginContext.Length:= Context.Length + Context.CurrLength shl 3;Context.Buf[Context.CurrLength]:= $80;inc(Context.CurrLength);if Context.CurrLength > 56 then begin FillChar(Context.Buf[Context.CurrLength], 64 - Context.CurrLength, 0); Context.CurrLength:= 64; SHA1Hash(Context); Context.CurrLength:=0 end;FillChar(Context.Buf[Context.CurrLength], 56 - Context.CurrLength, 0);for i:= 56 to 63 do Context.Buf[i] := (Context.Length shr ((63 - i) * 8)) and $FF;SHA1Hash(Context);for i:= 0 to 4 do SHA1Final[i]:= Context.H[i];FillChar(Context, sizeof(Context), 0)end;end.