diff options
Diffstat (limited to 'engines')
| -rw-r--r-- | engines/sci/engine/script_patches.cpp | 65 |
1 files changed, 64 insertions, 1 deletions
diff --git a/engines/sci/engine/script_patches.cpp b/engines/sci/engine/script_patches.cpp index 0280912c6b..b1603266d8 100644 --- a/engines/sci/engine/script_patches.cpp +++ b/engines/sci/engine/script_patches.cpp @@ -1654,9 +1654,72 @@ static const uint16 laurabow1PatchEasterEggViewFix[] = { PATCH_END }; +// When oiling the armor or opening the visor of the armor, the scripts +// first check if Laura/ego is near the armor and if she is not, they will move her +// to the armor. After that further code is executed. +// +// The current location is checked by a ego::inRect() call. +// +// The given rect for the inRect call inside openVisor::changeState was made larger for Atari ST/Amiga versions. +// We change the PC version to use the same rect. +// +// Additionally the coordinate, that Laura is moved to, is 152, 107 and may not be reachable depending on where +// Laura/ego was, when "use oil on helmet of armor" / "open visor of armor" got entered. +// Bad coordinates are for example 82, 110, which then cause collisions and effectively an endless loop. +// Game will effectively "freeze" and the user is only able to restore a previous game. +// This also happened, when using the original interpreter. +// We change the destination coordinate to 152, 110, which seems to be reachable all the time. +// +// The following patch fixes the rect for the PC version of the game. +// +// Applies to at least: English PC Floppy +// Responsible method: openVisor::changeState (script 37) +// Fixes bug: #7119 +static const uint16 laurabow1SignatureArmorOpenVisorFix[] = { + 0x39, 0x04, // pushi 04 + SIG_MAGICDWORD, + 0x39, 0x6a, // pushi 6a (106d) + 0x38, SIG_UINT16(0x96), // pushi 0096 (150d) + 0x39, 0x6c, // pushi 6c (108d) + 0x38, SIG_UINT16(0x98), // pushi 0098 (152d) + SIG_END +}; + +static const uint16 laurabow1PatchArmorOpenVisorFix[] = { + PATCH_ADDTOOFFSET(+2), + 0x39, 0x68, // pushi 68 (104d) (-2) + 0x38, SIG_UINT16(0x94), // pushi 0094 (148d) (-2) + 0x39, 0x6f, // pushi 6f (111d) (+3) + 0x38, SIG_UINT16(0x9a), // pushi 009a (154d) (+2) + PATCH_END +}; + +// This here fixes the destination coordinate (exact details are above). +// +// Applies to at least: English PC Floppy, English Atari ST Floppy, English Amiga Floppy +// Responsible method: openVisor::changeState, oiling::changeState (script 37) +// Fixes bug: #7119 +static const uint16 laurabow1SignatureArmorMoveToFix[] = { + SIG_MAGICDWORD, + 0x36, // push + 0x39, 0x6b, // pushi 6B (107d) + 0x38, SIG_UINT16(0x0098), // pushi 98 (152d) + 0x7c, // pushSelf + 0x81, 0x00, // lag global[0] + SIG_END +}; + +static const uint16 laurabow1PatchArmorMoveToFix[] = { + PATCH_ADDTOOFFSET(+1), + 0x39, 0x6e, // pushi 6E (110d) - adjust x, so that no collision can occur anymore + PATCH_END +}; + // script, description, signature patch static const SciScriptPatcherEntry laurabow1Signatures[] = { - { true, 4, "easter egg view fix", 1, laurabow1SignatureEasterEggViewFix, laurabow1PatchEasterEggViewFix }, + { true, 4, "easter egg view fix", 1, laurabow1SignatureEasterEggViewFix, laurabow1PatchEasterEggViewFix }, + { true, 37, "armor open visor fix", 1, laurabow1SignatureArmorOpenVisorFix, laurabow1PatchArmorOpenVisorFix }, + { true, 37, "armor move to fix", 2, laurabow1SignatureArmorMoveToFix, laurabow1PatchArmorMoveToFix }, SCI_SIGNATUREENTRY_TERMINATOR }; |