# HG changeset patch # User unc0rr # Date 1168548359 0 # Node ID 57d50189ad868872eb0ad6cf6f989735bae8e73f # Parent 73003488240b28ae5b7c72b3f72d5fc3dcdbb31b Calculate land digest diff -r 73003488240b -r 57d50189ad86 hedgewars/SDLh.pas --- a/hedgewars/SDLh.pas Wed Jan 10 23:24:55 2007 +0000 +++ b/hedgewars/SDLh.pas Thu Jan 11 20:45:59 2007 +0000 @@ -1,6 +1,6 @@ (* * Hedgewars, a worms-like game - * Copyright (c) 2004, 2005, 2006 Andrey Korotaev + * Copyright (c) 2004-2007 Andrey Korotaev * * 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 @@ -187,7 +187,9 @@ end; PByteArray = ^TByteArray; - TByteArray = array[0..32767] of Byte; + TByteArray = array[0..65535] of Byte; + PLongWordArray = ^TLongWordArray; + TLongWordArray = array[0..16383] of LongWord; function SDL_Init(flags: Longword): integer; cdecl; external SDLLibName; procedure SDL_Quit; cdecl; external SDLLibName; @@ -373,10 +375,10 @@ function SDLNet_AddSocket(_set: PSDLNet_SocketSet; sock: PTCPSocket): LongInt; cdecl; external SDL_NetLibName; function SDLNet_CheckSockets(_set: PSDLNet_SocketSet; timeout: LongInt): LongInt; cdecl; external SDL_NetLibName; -procedure SDLNet_Write16(value: SmallInt; buf: pointer); cdecl; external SDL_NetLibName; -procedure SDLNet_Write32(value: LongInt; buf: pointer); cdecl; external SDL_NetLibName; -function SDLNet_Read16(buf: pointer): SmallInt; cdecl; external SDL_NetLibName; -function SDLNet_Read32(buf: pointer): LongInt; cdecl; external SDL_NetLibName; +procedure SDLNet_Write16(value: Word; buf: pointer); cdecl; external SDL_NetLibName; +procedure SDLNet_Write32(value: LongWord; buf: pointer); cdecl; external SDL_NetLibName; +function SDLNet_Read16(buf: pointer): Word; cdecl; external SDL_NetLibName; +function SDLNet_Read32(buf: pointer): LongWord; cdecl; external SDL_NetLibName; implementation diff -r 73003488240b -r 57d50189ad86 hedgewars/hwengine.dpr --- a/hedgewars/hwengine.dpr Wed Jan 10 23:24:55 2007 +0000 +++ b/hedgewars/hwengine.dpr Thu Jan 11 20:45:59 2007 +0000 @@ -42,7 +42,8 @@ uLandObjects in 'uLandObjects.pas', uLandGraphics in 'uLandGraphics.pas', uLocale in 'uLocale.pas', - uAmmos in 'uAmmos.pas'; + uAmmos in 'uAmmos.pas', + uSHA in 'uSHA.pas'; {$INCLUDE options.inc} diff -r 73003488240b -r 57d50189ad86 hedgewars/uLand.pas --- a/hedgewars/uLand.pas Wed Jan 10 23:24:55 2007 +0000 +++ b/hedgewars/uLand.pas Thu Jan 11 20:45:59 2007 +0000 @@ -32,7 +32,7 @@ implementation -uses uConsole, uStore, uMisc, uConsts, uRandom, uTeams, uLandObjects; +uses uConsole, uStore, uMisc, uConsts, uRandom, uTeams, uLandObjects, uSHA, uIO; type TPixAr = record Count: Longword; @@ -40,17 +40,19 @@ end; procedure LogLandDigest; -//var ctx: TSHA1Context; -// dig: TSHA1Digest; +var ctx: TSHA1Context; + dig: TSHA1Digest; + s: shortstring; begin -//SHA1Init(ctx); -//SHA1Update(ctx, @Land, sizeof(Land)); -//dig:= SHA1Final(ctx); -{$IFDEF DEBUGFILE} -//AddFileLog('SHA1 Land digest: {'+inttostr(dig.LongWords[0])+':' -// +inttostr(dig.LongWords[1])+':'+inttostr(dig.LongWords[2])+':' -// +inttostr(dig.LongWords[3])+':'+inttostr(dig.LongWords[4])+'}'); -{$ENDIF} +SHA1Init(ctx); +SHA1Update(ctx, @Land, sizeof(Land)); +dig:= SHA1Final(ctx); +s:= '{'+inttostr(dig[0])+':' + +inttostr(dig[1])+':' + +inttostr(dig[2])+':' + +inttostr(dig[3])+':' + +inttostr(dig[4])+'}'; +SendIPC('M' + s) end; procedure DrawBezierEdge(var pa: TPixAr; Color: Longword); diff -r 73003488240b -r 57d50189ad86 hedgewars/uMisc.pas --- a/hedgewars/uMisc.pas Wed Jan 10 23:24:55 2007 +0000 +++ b/hedgewars/uMisc.pas Thu Jan 11 20:45:59 2007 +0000 @@ -90,7 +90,7 @@ procedure OutError(Msg: String; const isFatalError: boolean=false); procedure TryDo(Assert: boolean; Msg: string; isFatal: boolean); procedure SDLTry(Assert: boolean; isFatal: boolean); -function IntToStr(n: integer): shortstring; +function IntToStr(n: LongInt): shortstring; function FloatToStr(n: Double): shortstring; function DxDy2Angle32(const _dY, _dX: Extended): integer; function DxDy2AttackAngle(const _dY, _dX: Extended): integer; @@ -156,7 +156,7 @@ Color:= SDL_MapRGB(PixelFormat, (Color shr 16) and $FF, (Color shr 8) and $FF, Color and $FF) end; -function IntToStr(n: integer): shortstring; +function IntToStr(n: LongInt): shortstring; begin str(n, Result) end; diff -r 73003488240b -r 57d50189ad86 hedgewars/uSHA.pas --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hedgewars/uSHA.pas Thu Jan 11 20:45:59 2007 +0000 @@ -0,0 +1,143 @@ +(* + * Hedgewars, a worms-like game + * Copyright (c) 2004-2007 Andrey Korotaev + * + * 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; +interface +uses 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); +function SHA1Final(Context: TSHA1Context): TSHA1Digest; + +implementation + +function rol(x: LongWord; y: Byte): LongWord; +begin + Result:= (X shl y) or (X shr (32 - y)) +end; + +function Ft(t, b, c, d: LongWord): LongWord; +begin +case t of + 0..19: Result := (b and c) or ((not b) and d); + 20..39: Result := b xor c xor d; + 40..59: Result := (b and c) or (b and d) or (c and d); + else Result := b xor c xor d; + end; +end; + +function Kt(t: Byte): LongWord; +begin + case t of + 0..19: Result := $5A827999; + 20..39: Result := $6ED9EBA1; + 40..59: Result := $8F1BBCDC; + else + Result := $CA62C1D6 + end; +end; + + +procedure SHA1Hash(var Context: TSHA1Context); +var S: array[0..4 ] of LongWord; + W: array[0..79] of LongWord; + i, t: LongWord; +begin +move(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 + end +end; + +procedure SHA1Update(var Context: TSHA1Context; Buf: PByteArray; Length: LongWord); +var i: integer; +begin +for i:= 0 to Pred(Length) do + begin + Context.Buf[Context.CurrLength]:= PByteArray(Buf)^[i]; + inc(Context.CurrLength); + if Context.CurrLength = 64 then + begin + SHA1Hash(Context); + inc(Context.Length, 512); + Context.CurrLength:= 0 + end + end +end; + +function SHA1Final(Context: TSHA1Context): TSHA1Digest; +var i: LongWord; +begin +Context.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); +move(Context.H, Result, sizeof(TSHA1Digest)); +FillChar(Context, sizeof(Context), 0) +end; + +end.