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- /*
- * Bael'Zharon's Respite
- * Copyright (C) 2014 Daniel Skorupski
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #ifndef BZR_CHECKSUMXORGENERATOR_H
- #define BZR_CHECKSUMXORGENERATOR_H
- #include <deque>
- class ChecksumXorGenerator
- {
- public:
- ChecksumXorGenerator();
- void init(DWORD seed);
- DWORD get(DWORD sequence);
- void purge(DWORD sequence);
- private:
- DWORD generate();
- void initTables();
- static void initMix(DWORD* xorvals);
- void scramble();
- static void scrambleRound(DWORD shiftedVal, DWORD* key0_ptr, DWORD* key2_ptr, DWORD** localunk_ptr, DWORD** lc_unk0_ptr, DWORD** lc_unk200_ptr, DWORD** localxor_ptr, DWORD* var_18_ptr, DWORD* var_1c_ptr);
- static DWORD Crazy_XOR_01(const DWORD* data, DWORD index);
- DWORD counter_;
- DWORD xorTable_[256];
- DWORD unkTable_[256];
- DWORD value0_;
- DWORD value1_;
- DWORD value2_;
- DWORD cacheBegin_;
- std::deque<DWORD> cache_;
- };
- #endif
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