diff options
| -rw-r--r-- | engines/sci/engine/script_patches.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/engines/sci/engine/script_patches.cpp b/engines/sci/engine/script_patches.cpp index 8b99b63c6d..bbcae9f1d6 100644 --- a/engines/sci/engine/script_patches.cpp +++ b/engines/sci/engine/script_patches.cpp @@ -56,6 +56,51 @@ struct SciScriptSignature { // - rinse and repeat // =========================================================================== +// Castle of Dr. Brain +// cipher::init (script 391) is called on room 380 init. This resets the word +// cipher puzzle. The puzzle sadly operates on some hep strings, which aren't +// saved in our sci. So saving/restoring in this room will break the puzzle +// Because of this issue, we just init the puzzle each time it's accessed. +// this is not 100% sierra behaviour, in fact we will actually reset the puzzle +// during each access which makes it impossible to cheat. +const byte castlebrainSignatureCipherPuzzle[] = { + 22, + 0x35, 0x00, // ldi 00 + 0xa3, 0x26, // sal local[26] + 0xa3, 0x25, // sal local[25] + 0x35, 0x00, // ldi 00 + 0xa3, 0x2a, // sal local[2a] (local is not used) + 0xa3, 0x29, // sal local[29] (local is not used) + 0x35, 0xff, // ldi ff + 0xa3, 0x2c, // sal local[2c] + 0xa3, 0x2b, // sal local[2b] + 0x35, 0x00, // ldi 00 + 0x65, 0x16, // aTop highlightedIcon + 0 +}; + +const uint16 castlebrainPatchCipherPuzzle[] = { + 0x39, 0x6b, // pushi 6b (selector init) + 0x76, // push0 + 0x55, 0x04, // self 04 + 0x35, 0x00, // ldi 00 + 0xa3, 0x25, // sal local[25] + 0xa3, 0x26, // sal local[26] + 0xa3, 0x29, // sal local[29] + 0x65, 0x16, // aTop highlightedIcon + 0x34, 0xff, 0xff, // ldi ffff + 0xa3, 0x2b, // sal local[2b] + 0xa3, 0x2c, // sal local[2c] + PATCH_END +}; + +// script, description, magic DWORD, adjust +const SciScriptSignature castlebrainSignatures[] = { + { 391, "cipher puzzle save/restore break", 1, PATCH_MAGICDWORD(0xa3, 0x26, 0xa3, 0x25), -2, castlebrainSignatureCipherPuzzle, castlebrainPatchCipherPuzzle }, + SCI_SIGNATUREENTRY_TERMINATOR +}; + +// =========================================================================== // stayAndHelp::changeState (0) is called when ego swims to the left or right // boundaries of room 660. Normally a textbox is supposed to get on screen // but the call is wrong, so not only do we get an error message the script @@ -793,6 +838,9 @@ int32 Script::findSignature(const SciScriptSignature *signature, const byte *scr void Script::matchSignatureAndPatch(uint16 scriptNr, byte *scriptData, const uint32 scriptSize) { const SciScriptSignature *signatureTable = NULL; switch (g_sci->getGameId()) { + case GID_CASTLEBRAIN: + signatureTable = castlebrainSignatures; + break; case GID_ECOQUEST: signatureTable = ecoquest1Signatures; break; |