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Add the region checks for battle music.

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This commit is contained in:
IIMarckus 2012-09-10 20:46:07 -06:00
parent 139eecc9b9
commit 9037759c1a
1 changed files with 56 additions and 9 deletions
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65
main.asm
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@ -491,20 +491,22 @@ GetMapHeaderPointer: ; 0x2bed
ret
GetMapHeaderMember: ; 0x2c04
; Extract a pointer from the current map's header.
; Extract data from the current map's header.
; inputs:
; de = offset of desired pointer within the mapheader
; de = offset of desired data within the mapheader
; outputs:
; bc = pointer from the current map's
; bc = data from the current map's header
; (e.g., de = $0003 would return a pointer to the secondary map header)
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
; fallthrough
GetAnyMapHeaderMember: ; 0x2c0c
; bankswitch
ld a, [$ff00+$9d]
push af
@ -537,7 +539,23 @@ GetSecondaryMapHeaderPointer: ; 0x2c7d
pop bc
ret
INCBIN "baserom.gbc",$2c8a,$2e6f-$2c8a
INCBIN "baserom.gbc",$2c8a,$2caf-$2c8a
GetWorldMapLocation: ; 0x2caf
; given a map group/id in bc, return its location on the Pokégear map.
push hl
push de
push bc
ld de, 5
call GetAnyMapHeaderMember
ld a, c
pop bc
pop de
pop hl
ret
; 0x2cbd
INCBIN "baserom.gbc",$2cbd,$2e6f-$2cbd
BitTable1Func: ; 0x2e6f
ld hl, $da72
@ -5624,8 +5642,8 @@ INCBIN "baserom.gbc",$2C41a,$2ee8f - $2C41a
ld a, [$d22f] ; are we fighting a trainer?
and a
jr nz, .trainermusic
ld a, $72
ld hl, $6ea1
ld a, BANK(RegionCheck)
ld hl, RegionCheck
rst $8 ; XXX check region
ld a, e
and a
@ -5682,8 +5700,8 @@ INCBIN "baserom.gbc",$2C41a,$2ee8f - $2C41a
ld a, [$c2dc]
and a
jr nz, .linkbattle ; XXX link battle?
ld a, $72
ld hl, $6ea1
ld a, BANK(RegionCheck)
ld hl, RegionCheck
rst $8
ld a, e
and a
@ -116995,7 +117013,36 @@ INCBIN "baserom.gbc",$1CA896,$1CAA43-$1CA896
db "BATTLE",$1F,"TOWER@"
db "SPECIAL@"
INCBIN "baserom.gbc",$1CAEA1,$40
RegionCheck: ; 0x1caea1
; Checks if the player is in Kanto or Johto.
; If in Johto, returns 0 in e.
; If in Kanto, returns 1 in e.
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
call GetWorldMapLocation
cp $5f ; on S.S. Aqua
jr z, .johto
cp $0 ; special
jr nz, .checkagain
; XXX if in map $00, load map group / map id from... where???
ld a, [$dcad]
ld b, a
ld a, [$dcae]
ld c, a
call GetWorldMapLocation
.checkagain
cp $2f ; Pallet Town
jr c, .johto
cp $58 ; Victory Road
jr c, .kanto
.johto
ld e, 0
ret
.kanto
ld e, 1
ret
SECTION "bank73",DATA,BANK[$73]