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SCI: Fix CAMELOT dropped events while sword is drawn

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Fixes bug #11269
This commit is contained in:
sluicebox 2019-11-20 14:10:24 -08:00
parent 11065630c0
commit 1c97fa4358
1 changed files with 35 additions and 0 deletions
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35
engines/sci/engine/script_patches.cpp
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@ -812,10 +812,45 @@ static const uint16 camelotPatchSwordSheathing[] = {
PATCH_END
};
// When Arthur's sword is drawn, ARTHUR:doit calls kGetEvent a second time on
// each cycle to test if a shift key is pressed, causing input events to be
// frequently dropped. This is similar to Freddy Pharkas and QFG1VGA where this
// technique just happened to usually work in Sierra's interpreter. We fix this
// in the same way by using the current event instead of consuming a new one.
//
// Applies to: All versions
// Responsible method: ARTHUR:doit
// Fixes bug: #11269
static const uint16 camelotSignatureSwordEvents[] = {
0x30, SIG_MAGICDWORD, // bnt 0045
SIG_UINT16(0x0045),
0x39, SIG_SELECTOR8(new), // pushi new
0x76, // push0
0x51, 0x07, // class Event
0x4a, 0x04, // send 04 [ Event new: ]
0xa5, 0x01, // sat 01 [ temp1 = Event new: ]
SIG_ADDTOOFFSET(+53),
0x39, SIG_SELECTOR8(dispose), // pushi dispose
0x76, // push0
0x85, 0x01, // lat 01
0x4a, 0x04, // send 04 [ temp1 dispose: ]
SIG_END
};
static const uint16 camelotPatchSwordEvents[] = {
0x31, 0x46, // bnt 46
0x38, PATCH_SELECTOR16(curEvent), // pushi curEvent
0x76, // push0
0x51, 0x30, // class User [ User: curEvent ]
PATCH_ADDTOOFFSET(+57),
0x33, 0x05, // jmp 05 [ don't dispose event ]
PATCH_END
};
// script, description, signature patch
static const SciScriptPatcherEntry camelotSignatures[] = {
{ true, 0, "fix sword sheathing", 1, camelotSignatureSwordSheathing, camelotPatchSwordSheathing },
{ true, 0, "fix sword events", 1, camelotSignatureSwordEvents, camelotPatchSwordEvents },
{ true, 11, "fix hunter missing points", 1, camelotSignatureHunterMissingPoints, camelotPatchHunterMissingPoints },
{ true, 62, "fix peepingTom Sierra bug", 1, camelotSignaturePeepingTom, camelotPatchPeepingTom },
{ true, 64, "fix Fatima room messages", 2, camelotSignatureFatimaRoomMessages, camelotPatchFatimaRoomMessages },