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SCI32: Fix KQ7 extra ambrosia

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Fixes bug #9790
This commit is contained in:
sluicebox 2019-10-31 09:54:35 -07:00
parent 72084365af
commit 17173f6dac
1 changed files with 22 additions and 0 deletions
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22
engines/sci/engine/script_patches.cpp
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@ -4634,10 +4634,32 @@ static const uint16 kq7PragmaFailSpinPatch[] = {
PATCH_END
};
// Room 6100 creates an extra ambrosia, usually floating in upper left of the
// screen, due to an off by one error. The script's local arrays contain four
// ambrosia coordinates but the loop that accesses them iterates five times.
//
// Applies to: All versions
// Responsible method: rm6100:init
// Fixes bug #9790
static const uint16 kq7ExtraAmbrosiaSignature[] = {
SIG_MAGICDWORD,
0x8d, 0x00, // lst 00
0x35, 0x04, // ldi 04
0x24, // le?
SIG_END
};
static const uint16 kq7ExtraAmbrosiaPatch[] = {
PATCH_ADDTOOFFSET(+4),
0x22, // lt?
PATCH_END
};
// script, description, signature patch
static const SciScriptPatcherEntry kq7Signatures[] = {
{ true, 0, "disable video benchmarking", 1, kq7BenchmarkSignature, kq7BenchmarkPatch },
{ true, 0, "remove hardcoded spin loop", 1, kq7PragmaFailSpinSignature, kq7PragmaFailSpinPatch },
{ true, 6100, "fix extra ambrosia", 1, kq7ExtraAmbrosiaSignature, kq7ExtraAmbrosiaPatch },
{ true, 31, "enable subtitles (1/3)", 1, kq7SubtitleFixSignature1, kq7SubtitleFixPatch1 },
{ true, 64928, "enable subtitles (2/3)", 1, kq7SubtitleFixSignature2, kq7SubtitleFixPatch2 },
{ true, 64928, "enable subtitles (3/3)", 1, kq7SubtitleFixSignature3, kq7SubtitleFixPatch3 },