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SCI32: Simplify GK1 ego speed script patch (#1450)

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sluicebox 2018-12-17 05:08:53 -08:00 • committed by Filippos Karapetis
parent 9de73859ff
commit 074177cc15
1 changed files with 13 additions and 67 deletions
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80
engines/sci/engine/script_patches.cpp
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@ -1810,80 +1810,27 @@ static const uint16 gk1Day5SnakeAttackPatch2[] = {
// something that does call normalize.
//
// We fix this by calling GKEgo:normalize after Gabriel finishes walking
// through the door in sGabeEnters:changeState(5). This requires overwriting
// the instructions in state 4 which set GKEgo:ignoreActors to 0 but that's
// okay because normalize does that.
//
// There are two versions of this patch due to two significantly different
// versions of this script. The first is in english pc floppy prior to
// Sierra's 1.0b patch and the second is in cd and localized floppies. The
// script was restructured and the compiler used different sized instructions.
// through the door in sGabeEnters:changeState(4). This replaces setting
// GKEgo:ignoreActors to 0 but that's okay because normalize does that.
//
// Applies to: All PC Floppy and CD versions. TODO: Test Mac, should apply
// Responsible method: sGabeEnters:changeState
// Responsible method: sGabeEnters:changeState(4)
// Fixes bug #10780
static const uint16 gk1PoliceEgoSpeedFixV1Signature[] = {
0x31, 0x1f, // bnt 1f [ state 5 ]
SIG_ADDTOOFFSET(+19),
0x38, SIG_SELECTOR16(ignoreActors), // pushi ignoreActors
static const uint16 gk1PoliceEgoSpeedFixSignature[] = {
0x38, SIG_MAGICDWORD, // pushi ignoreActors
SIG_SELECTOR16(ignoreActors),
0x78, // push1
0x76, // push0
0x81, 0x00, // lag 0
0x4a, SIG_UINT16(0x000c), // send c [ GKEgo:setPri: -1, ignoreActors: 0 ]
0x33, 0x45, // jmp 45 [ end of method ]
SIG_MAGICDWORD,
0x3c, // dup
0x35, 0x05, // ldi 5
0x1a, // eq?
0x31, 0x3f, // bnt 3f [ end of method ]
0x81, 0x00, // lag 00
0x4a, SIG_UINT16(0x000c), // send c [ GKEgo: ..., ignoreActors: 0 ]
SIG_END
};
static const uint16 gk1PoliceEgoSpeedFixV1Patch[] = {
0x31, 0x1b, // bnt 1b [ state 5 ]
SIG_ADDTOOFFSET(+19),
0x81, 0x00, // lag 0
0x4a, PATCH_UINT16(0x0006), // send 6 [ GKEgo:setPri: -1 ]
0x3a, // toss
0x48, // ret
0x33, 0x00, // jmp 0 [ waste 2 bytes ]
static const uint16 gk1PoliceEgoSpeedFixPatch[] = {
0x38, PATCH_SELECTOR16(normalize), // pushi normalize
0x76, // push0
0x81, 0x00, // lag 0
0x4a, PATCH_UINT16(0x0004), // send 4 [ GKEgo:normalize ]
PATCH_END
};
// cd / localized floppy / floppy 1.0b version of the above signature/patch
static const uint16 gk1PoliceEgoSpeedFixV2Signature[] = {
0x31, 0x27, // bnt 27 [ state 5 ]
SIG_ADDTOOFFSET(+26),
0x38, SIG_SELECTOR16(ignoreActors), // pushi ignoreActors
0x78, // push1
0x76, // push0
0x81, 0x00, // lag 0
0x4a, SIG_UINT16(0x000c), // send c [ GKEgo:setPri: -1, ignoreActors: 0 ]
0x32, SIG_UINT16(0x004c), // jmp 004c [ end of method ]
SIG_MAGICDWORD,
0x3c, // dup
0x35, 0x05, // ldi 5
0x1a, // eq?
0x31, 0x46, // bnt 46 [ end of method ]
SIG_END
};
static const uint16 gk1PoliceEgoSpeedFixV2Patch[] = {
0x31, 0x24, // bnt 24 [ state 5 ]
SIG_ADDTOOFFSET(+26),
0x81, 0x00, // lag 0
0x4a, PATCH_UINT16(0x0006), // send 6 [ GKEgo:setPri: -1 ]
0x3a, // toss
0x48, // ret
0x32, PATCH_UINT16(0x0000), // jmp 0 [ waste 3 bytes ]
0x38, PATCH_SELECTOR16(normalize), // pushi 0300 [ normalize ]
0x76, // push0
0x81, 0x00, // lag 0
0x4a, PATCH_UINT16(0x0004), // send 4 [ GKEgo:normalize ]
0x39, 0x00, // pushi 00
0x81, 0x00, // lag 00
0x4a, PATCH_UINT16(0x000a), // send a [ GKEgo: ..., normalize ]
PATCH_END
};
@ -2176,8 +2123,7 @@ static const SciScriptPatcherEntry gk1Signatures[] = {
{ true, 230, "fix day 6 police beignet timer issue (1/2)", 1, gk1Day6PoliceBeignetSignature1, gk1Day6PoliceBeignetPatch1 },
{ true, 230, "fix day 6 police beignet timer issue (2/2)", 1, gk1Day6PoliceBeignetSignature2, gk1Day6PoliceBeignetPatch2 },
{ true, 230, "fix day 6 police sleep timer issue", 1, gk1Day6PoliceSleepSignature, gk1Day6PoliceSleepPatch },
{ true, 230, "fix police station ego speed (version 1)", 1, gk1PoliceEgoSpeedFixV1Signature, gk1PoliceEgoSpeedFixV1Patch },
{ true, 230, "fix police station ego speed (version 2)", 1, gk1PoliceEgoSpeedFixV2Signature, gk1PoliceEgoSpeedFixV2Patch },
{ true, 230, "fix police station ego speed", 1, gk1PoliceEgoSpeedFixSignature, gk1PoliceEgoSpeedFixPatch },
{ true, 240, "fix day 5 mosely veve missing points", 1, gk1Day5MoselyVevePointsSignature, gk1Day5MoselyVevePointsPatch },
{ true, 250, "fix ego speed when exiting drug store", 1, gk1DrugStoreEgoSpeedFixSignature, gk1DrugStoreEgoSpeedFixPatch },
{ true, 260, "fix day 5 snake attack (1/2)", 1, gk1Day5SnakeAttackSignature1, gk1Day5SnakeAttackPatch1 },