thirdparty/scummvm
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

SCI32: Fix GK1 day 5 script patch

Browse source 
The previous patch made ego not getting the drum book anymore.
This commit is contained in:
Martin Kiewitz 2016-09-09 00:46:49 +02:00
parent 858bfdf691
commit 71d20da1e5
1 changed files with 28 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

51
engines/sci/engine/script_patches.cpp
View file

@ -677,8 +677,11 @@ static const uint16 gk1PatchDay6PoliceSleep[] = {
// GetTheVeve::changeState(0) would also play the first line of the veve pattern newspaper and that's skipped,
// when the player is supposed to get the drum book.
// GetTheVeve::changeState(1) up to state 10 will do the dialogue about the veve newspaper.
// At the start of state 1 though, the player will get the drum book in case he ask for research.
// Right after that the scripts check, if the player has the drum book and then go the veve newspaper route.
//
// We fix this by removing the state 0 drum book code and instead will then skip up to state 11.
// We fix this by skipping the drum book check in case the player just got the drum book.
// The scripts will then skip to state 12, skipping over the second drum book dialogue call.
//
// More notes: The veve newspaper item is inventory 9. The drum book is inventory 14.
// The flag for veve research is 36, the flag for drum research is 73.
@ -688,35 +691,37 @@ static const uint16 gk1PatchDay6PoliceSleep[] = {
// Special thanks, credits and kudos to sluicebox on IRC, who did a ton of research on this and even found this game bug originally.
//
// Applies to at least: English PC-CD, German PC-CD
// Responsible method: getTheVeve::changeState(0) - script 212
// Responsible method: getTheVeve::changeState(1) - script 212
static const uint16 gk1SignatureDay5DrumBookDialogue[] = {
0x38, SIG_UINT16(0x0202), // pushi 202h ("has")
0x78, // push
0x31, 0x0b, // bnt [skip giving player drum book code]
0x38, SIG_UINT16(0x0200), // pushi 0200h
0x78, // push1
SIG_MAGICDWORD,
0x39, 0x09, // pushi 09 (veve newspaper item)
0x39, 0x0e, // pushi 0Eh
0x81, 0x00, // lag global[0]
0x4a, 0x06, 0x00, // send 06
0x31, 0x0f, // bnt [skip to start of veve newspaper dialogue]
// code that will trigger the drum book sequence
0x38, SIG_UINT16(0x00b7), // pushi 00B7h ("setScript")
0x7a, // push2
0x72, SIG_UINT16(0x00b6), // lofsa getTheDrumBook
0x36, // push
0x7c, // pushSelf
0x54, 0x08, 0x00, // self 08 - getTheVeve::setScript(getTheDrumBook, getTheVeve)
0x32, SIG_UINT16(0x0A5B), // jmp [exit method]
0x4a, 0x06, 0x00, // send 06 - GKEgo::get(0Eh)
// end of giving player drum book code
0x38, SIG_UINT16(0x0202), // pushi 0202h
0x78, // push1
0x39, 0x0e, // pushi 0Eh
0x81, 0x00, // lag global[0]
0x4a, 0x06, 0x00, // send 06 - GKEgo::has(0Eh)
0x18, // not
0x30, SIG_UINT16(0x0025), // bnt [veve newspaper code]
SIG_END
};
static const uint16 gk1PatchDay5DrumBookDialogue[] = {
PATCH_ADDTOOFFSET(+13),
// now we are at the start of the drum book sequence code
0x35, 0x0A, // ldi 0A (one state before the second drum book code)
0x65, 0x14, // aTop state
0x35, 0x01, // ldi 01
0x65, 0x1a, // aTop cycles
0x3A, // toss
0x48, // ret
0x31, 0x0d, // bnt [skip giving player drum book code] adjusted
PATCH_ADDTOOFFSET(+11), // skip give player drum book original code
0x33, 0x0D, // jmp [over the check inventory for drum book code]
// check inventory for drum book
0x38, SIG_UINT16(0x0202), // pushi 0202h
0x78, // push1
0x39, 0x0e, // pushi 0Eh
0x81, 0x00, // lag global[0]
0x4a, 0x06, 0x00, // send 06 - GKEgo::has(0Eh)
0x2f, 0x23, // bt [veve newspaper code] (adjusted, saves 2 bytes)
PATCH_END
};