scawful/oracle-of-secrets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

refactor reveal secrets with book code

Browse Source
This commit is contained in:
scawful
2022-06-08 08:06:03 -04:00
parent 935ac54130
commit b53d21cb93
1 changed files with 44 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
Book/reveal_secrets.asm
View File

@@ -1,19 +1,26 @@
;this is for making BG2 disappear when pressing X+R and having the book of mudora (modified parallel worlds x button secret), i use bank 0x3C for the whole code ;===========================================================
;WRITTEN: by XaserLE ; Reveal Secrets with Book of Mudora
;THANKS TO: -MathOnNapkins' Zelda Doc's ; Makes BG2 Disappear when pressing X+R
; -wiiqwertyuiop for his Zelda Disassembly ; Based on the Parallel Worlds feature
;
; Bank 0x3C used for whole code
; Layer Flags: xxxsabcd (i count BG from 1 to 4 - MathOnNapkins RAM-Map counts from 0 to 3) ; Layer Flags: xxxsabcd (i count BG from 1 to 4 - MathOnNapkins RAM-Map counts from 0 to 3)
; s - Sprite layer enabled ; s - Sprite layer enabled
; a - BG4 enabled ; a - BG4 enabled
; b - BG3 enabled ; b - BG3 enabled
; c - BG2 enabled ; c - BG2 enabled
; d - (BG1 disabled) --> only works properly if the room uses the feature "BG2 on Top" ; d - (BG1 disabled) --> only works properly if the room uses the feature "BG2 on Top"
;
; WRITTEN: by XaserLE
; THANKS TO: -MathOnNapkins' Zelda Doc's
; -wiiqwertyuiop for his Zelda Disassembly
;===========================================================
Reveal_Secrets:
{
header header
lorom lorom
ORG $0288FD ; go to the code that branches behind the dungeon map load if player didn't press X ORG $0288FD ; go to the code that branches behind the dungeon map load if player didn't press X
BRA $1C ; make it always branch, so map isn't loaded anymore BRA $1C ; make it always branch, so map isn't loaded anymore
@@ -23,8 +30,9 @@ JSL $3CA600 ; overwrite it (originally JSL $099F91)
ORG $3CA600 ; go to expanded space to write our routine (keep EveryFrame.asm in mind for the right adresses) ORG $3CA600 ; go to expanded space to write our routine (keep EveryFrame.asm in mind for the right adresses)
LDA $1B ; load data that tells us whether we are in a building or not LDA $1B ; load data that tells us whether we are in a building or not
AND #$01 ; are we in a building? AND #$01 ; are we in a building?
BEQ END_XBUTTONSECRET ; if not, don't use the x-button-secret BEQ END ; if not, don't use the x-button-secret
;BG2 disable on pressing R
; ----------
LDA $7EF34D ; load book of mudora slot LDA $7EF34D ; load book of mudora slot
CMP #$01 ; do we have the moon pearl? CMP #$01 ; do we have the moon pearl?
BNE $0F ; if not, go to enable BG2 BNE $0F ; if not, go to enable BG2
@@ -39,6 +47,9 @@ BEQ END_XBUTTONSECRET ; if not, don't use the x-button-secret
LDA $1C ; load layer flags LDA $1C ; load layer flags
ORA #$02 ; enable BG2 (0x02 = 00000010) ORA #$02 ; enable BG2 (0x02 = 00000010)
STA $1C ; store layer flags STA $1C ; store layer flags
END_XBUTTONSECRET: ; ----------
END:
JSL $099F91 ; at least execute original code JSL $099F91 ; at least execute original code
RTL RTL
}