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//-------------------------------------------------------------------------
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/*
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Copyright (C) 2010 EDuke32 developers and contributors
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This file is part of EDuke32.
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EDuke32 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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#ifndef savegame_h_
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#define savegame_h_
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#include "game.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef LUNATIC
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# define SV_MAJOR_VER 2
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#else
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# define SV_MAJOR_VER 1
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#endif
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#define SV_MINOR_VER 3
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#pragma pack(push,1)
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typedef struct
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{
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    char headerstr[11];
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    uint8_t majorver, minorver, ptrsize;
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    uint16_t bytever;
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    // 16 bytes
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    uint8_t comprthres;
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    uint8_t recdiffsp, diffcompress, synccompress;
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    // 4 bytes
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    int32_t reccnt, snapsiz;
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    // 8 bytes
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    char savename[MAXSAVEGAMENAME];
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    uint8_t numplayers, volnum, levnum, skill;
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    char boardfn[BMAX_PATH];
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    // 282 bytes
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} savehead_t;
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#pragma pack(pop)
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EDUKE32_STATIC_ASSERT(sizeof(savehead_t) == 310);
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int32_t sv_updatestate(int32_t frominit);
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int32_t sv_readdiff(int32_t fil);
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uint32_t sv_writediff(FILE *fil);
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int32_t sv_loadheader(int32_t fil, int32_t spot, savehead_t *h);
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int32_t sv_loadsnapshot(int32_t fil, int32_t spot, savehead_t *h);
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int32_t sv_saveandmakesnapshot(FILE *fil, int8_t spot, int8_t recdiffsp, int8_t diffcompress, int8_t synccompress);
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void sv_freemem();
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int32_t G_SavePlayer(int32_t spot);
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int32_t G_LoadPlayer(int32_t spot);
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int32_t G_LoadSaveHeaderNew(int32_t spot, savehead_t *saveh);
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void ReadSaveGameHeaders(void);
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void G_SavePlayerMaybeMulti(int32_t slot);
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void G_LoadPlayerMaybeMulti(int32_t slot);
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#ifdef YAX_ENABLE
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extern void sv_postyaxload(void);
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#endif
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// XXX: The 'bitptr' decl really belongs into gamedef.h, but we don't want to
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// pull all of it in savegame.c?
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extern char *bitptr;
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extern uint8_t g_oldverSavegame[MAXSAVEGAMES];
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enum
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{
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    P2I_BACK_BIT = 1,
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    P2I_ONLYNON0_BIT = 2,
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    P2I_FWD = 0,
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    P2I_BACK = 1,
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    P2I_FWD_NON0 = 0+2,
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    P2I_BACK_NON0 = 1+2,
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};
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void G_Util_PtrToIdx(void *ptr, int32_t count, const void *base, int32_t mode);
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void G_Util_PtrToIdx2(void *ptr, int32_t count, size_t stride, const void *base, int32_t mode);
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#ifdef LUNATIC
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extern const char *(*El_SerializeGamevars)(int32_t *slenptr, int32_t levelnum);
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void El_FreeSaveCode(void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif