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pokecrystal-board/home/map.asm
yenatch 9e81c46cbf Merge commit '66ef1838' into merge-mrwint 
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	home/map.asm
2013-10-25 17:53:16 -04:00

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; Functions dealing with rendering and interacting with maps.
Function210f: ; 210f
ld hl, $c7e8
ld bc, $0018
ld a, $0
call ByteFill
ret
; 211b
Function211b: ; 211b
push hl
ld hl, $dbf7
ld a, [hli]
ld h, [hl]
ld l, a
or h
ld a, [hl]
jr nz, .asm_2128
ld a, $ff
.asm_2128
pop hl
ret
; 212a
Function212a: ; 212a
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
xor a
ld [$dbf7], a
ld [$dbf8], a
call Function2147
ret c
ld a, e
ld [$dbf7], a
ld a, d
ld [$dbf8], a
xor a
ret
; 2147
Function2147: ; 2147
push bc
ld a, [hROMBank]
push af
ld a, $13
rst Bankswitch
ld hl, $501e
.asm_2151
push hl
ld a, [hli]
cp $ff
jr z, .asm_2167
cp b
jr nz, .asm_2160
ld a, [hli]
cp c
jr nz, .asm_2160
jr .asm_216a
.asm_2160
pop hl
ld de, $0004
add hl, de
jr .asm_2151
.asm_2167
scf
jr .asm_216d
.asm_216a
ld e, [hl]
inc hl
ld d, [hl]
.asm_216d
pop hl
pop bc
ld a, b
rst Bankswitch
pop bc
ret
; 2173
Function2173: ; 2173
call Function217a
call Functiondb1
ret
; 217a
Function217a: ; 217a
ld a, [hROMBank]
push af
ld a, [TilesetBlocksBank]
rst Bankswitch
call Function2198
ld a, $60
ld hl, TileMap
ld bc, $0168
call ByteFill
ld a, $13
rst Bankswitch
call $515b
pop af
rst Bankswitch
ret
; 2198
Function2198: ; 2198
ld a, [$d194]
ld e, a
ld a, [$d195]
ld d, a
ld hl, EnemyMoveAnimation
ld b, $5
.asm_21a5
push de
push hl
ld c, $6
.asm_21a9
push de
push hl
ld a, [de]
and a
jr nz, .asm_21b2
ld a, [$d19d]
.asm_21b2
ld e, l
ld d, h
add a
ld l, a
ld h, $0
add hl, hl
add hl, hl
add hl, hl
ld a, [TilesetBlocksAddress]
add l
ld l, a
ld a, [TilesetBlocksAddress + 1]
adc h
ld h, a
rept 3
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
ld a, e
add 20
ld e, a
jr nc, .next\@
inc d
.next\@
endr
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
pop hl
ld de, $0004
add hl, de
pop de
inc de
dec c
jp nz, .asm_21a9
pop hl
ld de, $0060
add hl, de
pop de
ld a, [MapWidth]
add $6
add e
ld e, a
jr nc, .asm_2225
inc d
.asm_2225
dec b
jp nz, .asm_21a5
ret
; 222a
Function222a: ; 222a
ld a, $fa
ld [$ff9f], a
callba Function15363
xor a
ld [$ff9f], a
ret
; 2238
Function2238: ; 2238
call Function2252
ret nc
push bc
callba Function149af
pop bc
ret nc
call Function22a7
scf
ret
; 224a
Function224a: ; 224a
call Function2252
ret nc
call Function22a7
ret
; 2252
Function2252: ; 2252
callba Function1499a
ret nc
ld a, [hROMBank]
push af
call Function2c52
call Function2266
pop de
ld a, d
rst Bankswitch
ret
; 2266
Function2266: ; 2266
ld a, [MapY]
sub $4
ld e, a
ld a, [MapX]
sub $4
ld d, a
ld a, [$dbfb]
and a
ret z
ld c, a
ld hl, $dbfc
ld a, [hli]
ld h, [hl]
ld l, a
.asm_227e
push hl
ld a, [hli]
cp e
jr nz, .asm_2289
ld a, [hli]
cp d
jr nz, .asm_2289
jr .asm_2296
.asm_2289
pop hl
ld a, $5
add l
ld l, a
jr nc, .asm_2291
inc h
.asm_2291
dec c
jr nz, .asm_227e
xor a
ret
.asm_2296
pop hl
call Function22a3
ret nc
ld a, [$dbfb]
inc a
sub c
ld c, a
scf
ret
; 22a3
Function22a3: ; 22a3
inc hl
inc hl
scf
ret
; 22a7
Function22a7: ; 22a7
ld a, [hROMBank]
push af
call Function2c52
call Function22b4
pop af
rst Bankswitch
scf
ret
; 22b4
Function22b4: ; 22b4
push bc
ld hl, $dbfc
ld a, [hli]
ld h, [hl]
ld l, a
ld a, c
dec a
ld bc, $0005
call AddNTimes
ld bc, $0002
add hl, bc
ld a, [hli]
cp $ff
jr nz, .asm_22d0
ld hl, $dcac
ld a, [hli]
.asm_22d0
pop bc
ld [$d146], a
ld a, [hli]
ld [$d147], a
ld a, [hli]
ld [$d148], a
ld a, c
ld [$d149], a
ld a, [MapGroup]
ld [$d14a], a
ld a, [MapNumber]
ld [$d14b], a
scf
ret
; 22ee
CheckOutdoorMap: ; 22ee
cp ROUTE
ret z
cp TOWN
ret
; 22f4
CheckIndoorMap: ; 22f4
cp INDOOR
ret z
cp CAVE
ret z
cp DUNGEON
ret z
cp GATE
ret
; 2300
Function2300: ; 2300
cp INDOOR
ret z
cp GATE
ret z
cp $5
ret
; 2309
Function2309: ; 2309
call Function2326
call Function2c52
call Function234f
xor a
call Function2336
ret
; 2317
Function2317: ; 2317
call Function2326
call Function2c52
call Function234f
ld a, $1
call Function2336
ret
; 2326
Function2326: ; 2326
call Function2c3d
call Function2c1c
call GetSecondaryMapHeaderPointer
call Function235c
call Function2368
ret
; 2336
Function2336: ; 2336
push af
ld hl, MapEventHeaderPointer
ld a, [hli]
ld h, [hl]
ld l, a
inc hl
inc hl
call Function23da
call Function23f1
call Function2408
pop af
and a
ret nz
call Function241f
ret
; 234f
Function234f: ; 234f
ld hl, MapScriptHeaderPointer
ld a, [hli]
ld h, [hl]
ld l, a
call Function23ac
call Function23c3
ret
; 235c
Function235c: ; 235c
ld de, $d19d
ld c, $c
.asm_2361
ld a, [hli]
ld [de], a
inc de
dec c
jr nz, .asm_2361
ret
; 2368
Function2368: ; 2368
ld a, $ff
ld [NorthConnectedMapGroup], a
ld [SouthConnectedMapGroup], a
ld [WestConnectedMapGroup], a
ld [EastConnectedMapGroup], a
ld a, [MapConnections]
ld b, a
bit 3, b
jr z, .asm_2384
ld de, NorthMapConnection
call GetMapConnection
.asm_2384
bit 2, b
jr z, .asm_238e
ld de, SouthMapConnection
call GetMapConnection
.asm_238e
bit 1, b
jr z, .asm_2398
ld de, WestMapConnection
call GetMapConnection
.asm_2398
bit 0, b
jr z, .asm_23a2
ld de, EastMapConnection
call GetMapConnection
.asm_23a2
ret
; 23a3
GetMapConnection: ; 23a3
; Load map connection struct at hl into de.
ld c, SouthMapConnection - NorthMapConnection
.loop
ld a, [hli]
ld [de], a
inc de
dec c
jr nz, .loop
ret
; 23ac
Function23ac: ; 23ac
ld a, [hli]
ld c, a
ld [$dc07], a
ld a, l
ld [$dc08], a
ld a, h
ld [$dc09], a
ld a, c
and a
ret z
ld bc, $0004
call AddNTimes
ret
; 23c3
Function23c3: ; 23c3
ld a, [hli]
ld c, a
ld [$dc0a], a
ld a, l
ld [$dc0b], a
ld a, h
ld [$dc0c], a
ld a, c
and a
ret z
ld bc, $0003
call AddNTimes
ret
; 23da
Function23da: ; 23da
ld a, [hli]
ld c, a
ld [$dbfb], a
ld a, l
ld [$dbfc], a
ld a, h
ld [$dbfd], a
ld a, c
and a
ret z
ld bc, $0005
call AddNTimes
ret
; 23f1
Function23f1: ; 23f1
ld a, [hli]
ld c, a
ld [$dbfe], a
ld a, l
ld [$dbff], a
ld a, h
ld [$dc00], a
ld a, c
and a
ret z
ld bc, $0008
call AddNTimes
ret
; 2408
Function2408: ; 2408
ld a, [hli]
ld c, a
ld [$dc01], a
ld a, l
ld [$dc02], a
ld a, h
ld [$dc03], a
ld a, c
and a
ret z
ld bc, $0005
call AddNTimes
ret
; 241f
Function241f: ; 241f
push hl
call Function2471
pop de
ld hl, $d72e
ld a, [de]
inc de
ld [$dc04], a
ld a, e
ld [$dc05], a
ld a, d
ld [$dc06], a
ld a, [$dc04]
call Function2457
ld a, [$dc04]
ld c, a
ld a, $10
sub c
jr z, .asm_2454
ld bc, $0001
add hl, bc
ld bc, $0010
.asm_244a
ld [hl], $0
inc hl
ld [hl], $ff
dec hl
add hl, bc
dec a
jr nz, .asm_244a
.asm_2454
ld h, d
ld l, e
ret
; 2457
Function2457: ; 2457
and a
ret z
ld c, a
.asm_245a
push bc
push hl
ld a, $ff
ld [hli], a
ld b, $d
.asm_2461
ld a, [de]
inc de
ld [hli], a
dec b
jr nz, .asm_2461
pop hl
ld bc, $0010
add hl, bc
pop bc
dec c
jr nz, .asm_245a
ret
; 2471
Function2471: ; 2471
ld hl, $d4fe
ld bc, $01e0
xor a
call ByteFill
ld hl, $d4fe
ld de, $0028
ld c, $c
xor a
.asm_2484
ld [hl], a
add hl, de
dec c
jr nz, .asm_2484
ret
; 248a
Function248a: ; 248a
call GetMapScriptHeaderBank
rst Bankswitch
ld hl, MapEventHeaderPointer
ld a, [hli]
ld h, [hl]
ld l, a
inc hl
inc hl
inc hl
ld a, [WarpNumber]
dec a
ld c, a
ld b, $0
ld a, $5
call AddNTimes
ld a, [hli]
ld [YCoord], a
ld a, [hli]
ld [XCoord], a
ld a, [hli]
cp $ff
jr nz, .asm_24b3
call Function24ba
.asm_24b3
callba Function10486d
ret
; 24ba
Function24ba: ; 24ba
ld a, [$d149]
ld [$dcac], a
ld a, [$d14a]
ld [BackupMapGroup], a
ld a, [$d14b]
ld [BackupMapNumber], a
ret
; 24cd
Function24cd: ; 24cd
ld hl, OverworldMap
ld bc, $0514
ld a, $0
call ByteFill
call Function24e4
call FillMapConnections
ld a, $1
call Function263b
ret
; 24e4
Function24e4: ; 24e4
ld a, [hROMBank]
push af
ld hl, OverworldMap
ld a, [MapWidth]
ld [hConnectedMapWidth], a
add $6
ld [hConnectionStripLength], a
ld c, a
ld b, $0
add hl, bc
add hl, bc
add hl, bc
ld c, $3
add hl, bc
ld a, [MapBlockDataBank]
rst Bankswitch
ld a, [MapBlockDataPointer]
ld e, a
ld a, [MapBlockDataPointer+1]
ld d, a
ld a, [MapHeight]
ld b, a
.asm_250c
push hl
ld a, [hConnectedMapWidth]
ld c, a
.asm_2510
ld a, [de]
inc de
ld [hli], a
dec c
jr nz, .asm_2510
pop hl
ld a, [hConnectionStripLength]
add l
ld l, a
jr nc, .asm_251e
inc h
.asm_251e
dec b
jr nz, .asm_250c
pop af
rst Bankswitch
ret
; 2524
FillMapConnections: ; 2524
; North
ld a, [NorthConnectedMapGroup]
cp $ff
jr z, .South
ld b, a
ld a, [NorthConnectedMapNumber]
ld c, a
call GetAnyMapBlockdataBank
ld a, [NorthConnectionStripPointer]
ld l, a
ld a, [NorthConnectionStripPointer + 1]
ld h, a
ld a, [NorthConnectionStripLocation]
ld e, a
ld a, [NorthConnectionStripLocation + 1]
ld d, a
ld a, [NorthConnectionStripLength]
ld [hConnectionStripLength], a
ld a, [NorthConnectedMapWidth]
ld [hConnectedMapWidth], a
call FillNorthConnectionStrip
.South
ld a, [SouthConnectedMapGroup]
cp $ff
jr z, .West
ld b, a
ld a, [SouthConnectedMapNumber]
ld c, a
call GetAnyMapBlockdataBank
ld a, [SouthConnectionStripPointer]
ld l, a
ld a, [SouthConnectionStripPointer + 1]
ld h, a
ld a, [SouthConnectionStripLocation]
ld e, a
ld a, [SouthConnectionStripLocation + 1]
ld d, a
ld a, [SouthConnectionStripLength]
ld [hConnectionStripLength], a
ld a, [SouthConnectedMapWidth]
ld [hConnectedMapWidth], a
call FillSouthConnectionStrip
.West
ld a, [WestConnectedMapGroup]
cp $ff
jr z, .East
ld b, a
ld a, [WestConnectedMapNumber]
ld c, a
call GetAnyMapBlockdataBank
ld a, [WestConnectionStripPointer]
ld l, a
ld a, [WestConnectionStripPointer + 1]
ld h, a
ld a, [WestConnectionStripLocation]
ld e, a
ld a, [WestConnectionStripLocation + 1]
ld d, a
ld a, [WestConnectionStripLength]
ld b, a
ld a, [WestConnectedMapWidth]
ld [hConnectionStripLength], a
call FillWestConnectionStrip
.East
ld a, [EastConnectedMapGroup]
cp $ff
jr z, .Done
ld b, a
ld a, [EastConnectedMapNumber]
ld c, a
call GetAnyMapBlockdataBank
ld a, [EastConnectionStripPointer]
ld l, a
ld a, [EastConnectionStripPointer + 1]
ld h, a
ld a, [EastConnectionStripLocation]
ld e, a
ld a, [EastConnectionStripLocation + 1]
ld d, a
ld a, [EastConnectionStripLength]
ld b, a
ld a, [EastConnectedMapWidth]
ld [hConnectionStripLength], a
call FillEastConnectionStrip
.Done
ret
; 25d3
FillNorthConnectionStrip:
FillSouthConnectionStrip: ; 25d3
ld c, 3
.y
push de
push hl
ld a, [hConnectionStripLength]
ld b, a
.x
ld a, [hli]
ld [de], a
inc de
dec b
jr nz, .x
pop hl
ld a, [hConnectedMapWidth]
ld e, a
ld d, 0
add hl, de
pop de
ld a, [MapWidth]
add 6
add e
ld e, a
jr nc, .asm_25f2
inc d
.asm_25f2
dec c
jr nz, .y
ret
; 25f6
FillWestConnectionStrip:
FillEastConnectionStrip: ; 25f6
.asm_25f6
ld a, [MapWidth]
add 6
ld [hConnectedMapWidth], a
push de
push hl
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
ld a, [hli]
ld [de], a
inc de
pop hl
ld a, [hConnectionStripLength]
ld e, a
ld d, 0
add hl, de
pop de
ld a, [hConnectedMapWidth]
add e
ld e, a
jr nc, .asm_2617
inc d
.asm_2617
dec b
jr nz, .asm_25f6
ret
; 261b
Function261b: ; 261b
ld [$d432], a
ret
; 261f
CallScript: ; 261f
; Call a script at a:hl.
ld [ScriptBank], a
ld a, l
ld [ScriptPos], a
ld a, h
ld [ScriptPos + 1], a
ld a, $ff
ld [ScriptRunning], a
scf
ret
; 2631
Function2631: ; 2631
ld a, [ScriptRunning]
and a
ret nz
call GetMapScriptHeaderBank
jr CallScript
; 263b
Function263b: ; 263b
ld b, a
ld a, [hROMBank]
push af
call Function2c52
call Function2653
jr nc, .done
call GetMapScriptHeaderBank
ld b, a
ld d, h
ld e, l
call Function2674
.done
pop af
rst Bankswitch
ret
; 2653
Function2653: ; 2653
ld a, [$dc0a]
ld c, a
and a
ret z
ld hl, $dc0b
ld a, [hli]
ld h, [hl]
ld l, a
or h
ret z
ld de, $0003
.asm_2664
ld a, [hl]
cp b
jr z, .asm_266e
add hl, de
dec c
jr nz, .asm_2664
xor a
ret
.asm_266e
inc hl
ld a, [hli]
ld h, [hl]
ld l, a
scf
ret
; 2674
Function2674: ; 2674
callba Unknown_0x974f3
ld a, [ScriptMode]
push af
ld hl, ScriptFlags
ld a, [hl]
push af
set 1, [hl]
callba Function96c56
callba ScriptEvents
pop af
ld [ScriptFlags], a
pop af
ld [ScriptMode], a
ret
; 269a
Function269a: ; 269a
ld a, [hROMBank]
push af
ld a, b
rst Bankswitch
push hl
call SpeechTextBox
call Function2e31
ld a, 1
ld [hOAMUpdate], a
call Function321c
pop hl
call PrintTextBoxText
xor a
ld [hOAMUpdate], a
pop af
rst Bankswitch
ret
; 26b7
Function26b7: ; 26b7
; Call a:de.
ld [hBuffer], a
ld a, [hROMBank]
push af
ld a, [hBuffer]
rst Bankswitch
call .de
pop af
rst Bankswitch
ret
.de
push de
ret
; 26c7
Function26c7: ; 26c7
ld a, [hROMBank]
push af
ld a, b
rst Bankswitch
ld a, c
call Function19e9
pop hl
ld a, h
rst Bankswitch
ret
; 26d4
GetScriptByte: ; 0x26d4
; Return byte at ScriptBank:ScriptPos in a.
push hl
push bc
ld a, [hROMBank]
push af
ld a, [ScriptBank]
rst Bankswitch
ld hl, ScriptPos
ld c, [hl]
inc hl
ld b, [hl]
ld a, [bc]
inc bc
ld [hl], b
dec hl
ld [hl], c
ld b, a
pop af
rst Bankswitch
ld a, b
pop bc
pop hl
ret
; 0x26ef
ObjectEvent: ; 0x26ef
jumptextfaceplayer ObjectEventText
; 0x26f2
ObjectEventText:
TX_FAR _ObjectEventText
db "@"
; 0x26f7
BGEvent: ; 26f7
jumptext BGEventText
; 26fa
BGEventText: ; 26fa
text_jump UnknownText_0x1c46fc, BANK(UnknownText_0x1c46fc)
db "@"
; 26ff
CoordinatesEvent: ; 26ff
jumptext CoordinatesEventText
; 2702
CoordinatesEventText: ; 2702
text_jump UnknownText_0x1c4706, BANK(UnknownText_0x1c4706)
db "@"
; 2707
Function2707: ; 2707
ld a, [hConnectionStripLength]
ld e, a
ld d, $0
ld hl, $d81e
add hl, de
ld a, [hl]
ret
; 2712
Function2712: ; 2712
ld a, [hConnectionStripLength]
ld e, a
ld d, $0
ld hl, $d81e
add hl, de
ld [hl], $ff
ret
; 271e
Function271e: ; 271e
ld a, [hConnectionStripLength]
ld e, a
ld d, $0
ld hl, $d81e
add hl, de
ld [hl], $0
ret
; 272a
Function272a: ; 272a
ld hl, TileMap
ld de, BGMapBuffer
call Function27b7
ld c, $28
call Functiondbd
ld a, [$d152]
ld e, a
ld a, [$d153]
ld d, a
call Function27d3
ld a, $1
ld [hBGMapUpdate], a
ret
; 2748
Function2748: ; 2748
ld hl, $c5e0
ld de, BGMapBuffer
call Function27b7
ld c, $28
call Functiondbd
ld a, [$d152]
ld l, a
ld a, [$d153]
ld h, a
ld bc, $0200
add hl, bc
ld a, h
and $3
or $98
ld e, l
ld d, a
call Function27d3
ld a, $1
ld [hBGMapUpdate], a
ret
; 2771
Function2771: ; 2771
ld hl, TileMap
ld de, BGMapBuffer
call Function27c0
ld c, $24
call Functiondbd
ld a, [$d152]
ld e, a
ld a, [$d153]
ld d, a
call Function27f8
ld a, $1
ld [hBGMapUpdate], a
ret
; 278f
Function278f: ; 278f
ld hl, $c4b2
ld de, BGMapBuffer
call Function27c0
ld c, $24
call Functiondbd
ld a, [$d152]
ld e, a
and $e0
ld b, a
ld a, e
add $12
and $1f
or b
ld e, a
ld a, [$d153]
ld d, a
call Function27f8
ld a, $1
ld [hBGMapUpdate], a
ret
; 27b7
Function27b7: ; 27b7
ld c, $28
.asm_27b9
ld a, [hli]
ld [de], a
inc de
dec c
jr nz, .asm_27b9
ret
; 27c0
Function27c0: ; 27c0
ld c, $12
.asm_27c2
ld a, [hli]
ld [de], a
inc de
ld a, [hl]
ld [de], a
inc de
ld a, $13
add l
ld l, a
jr nc, .asm_27cf
inc h
.asm_27cf
dec c
jr nz, .asm_27c2
ret
; 27d3
Function27d3: ; 27d3
ld hl, BGMapBufferPtrs
push de
call .asm_27df
pop de
ld a, $20
add e
ld e, a
.asm_27df
ld c, $a
.asm_27e1
ld a, e
ld [hli], a
ld a, d
ld [hli], a
ld a, e
inc a
inc a
and $1f
ld b, a
ld a, e
and $e0
or b
ld e, a
dec c
jr nz, .asm_27e1
ld a, $14
ld [$ffdc], a
ret
; 27f8
Function27f8: ; 27f8
ld hl, BGMapBufferPtrs
ld c, $12
.asm_27fd
ld a, e
ld [hli], a
ld a, d
ld [hli], a
ld a, $20
add e
ld e, a
jr nc, .asm_280e
inc d
ld a, d
and $3
or $98
ld d, a
.asm_280e
dec c
jr nz, .asm_27fd
ld a, $12
ld [$ffdc], a
ret
; 2816
Function2816: ; 2816
ld hl, BGMapBuffer
ld bc, $0078
xor a
call ByteFill
ret
; 2821
Function2821: ; 2821
ld hl, TilesetAddress
ld a, [hli]
ld h, [hl]
ld l, a
ld a, [TilesetBank]
ld e, a
ld a, [rSVBK]
push af
ld a, $6
ld [rSVBK], a
ld a, e
ld de, $d000
call FarDecompress
ld hl, $d000
ld de, VTiles2
ld bc, $0600
call CopyBytes
ld a, [rVBK]
push af
ld a, $1
ld [rVBK], a
ld hl, $d600
ld de, VTiles2
ld bc, $0600
call CopyBytes
pop af
ld [rVBK], a
pop af
ld [rSVBK], a
ld a, [$d199]
cp $1
jr z, .asm_286f
cp $2
jr z, .asm_286f
cp $4
jr z, .asm_286f
jr .asm_2875
.asm_286f
callba LoadMapGroupRoof
.asm_2875
xor a
ld [hTileAnimFrame], a
ret
; 2879
Function2879: ; 2879
ld hl, $d194
ld a, [hli]
ld h, [hl]
ld l, a
ld de, $dcb9
ld c, $5
ld b, $6
.asm_2886
push bc
push hl
.asm_2888
ld a, [hli]
ld [de], a
inc de
dec b
jr nz, .asm_2888
pop hl
ld a, [MapWidth]
add $6
ld c, a
ld b, $0
add hl, bc
pop bc
dec c
jr nz, .asm_2886
ret
; 289d
Function289d: ; 289d
ld hl, $d194
ld a, [hli]
ld h, [hl]
ld l, a
ld de, $dcb9
ld a, [MapWidth]
add $6
ld [hConnectionStripLength], a
ld a, [$d151]
and a
jr z, .asm_28cb
cp $1
jr z, .asm_28c0
cp $2
jr z, .asm_28d4
cp $3
jr z, .asm_28da
ret
.asm_28c0
ld de, $dcbf
ld a, [hConnectionStripLength]
ld c, a
ld b, $0
add hl, bc
jr .asm_28ce
.asm_28cb
ld de, $dcb9
.asm_28ce
ld b, $6
ld c, $4
jr .asm_28f7
.asm_28d4
ld de, $dcba
inc hl
jr .asm_28dd
.asm_28da
ld de, $dcb9
.asm_28dd
ld b, $5
ld c, $5
jr .asm_28f7
ld hl, $d194
ld a, [hli]
ld h, [hl]
ld l, a
ld a, [MapWidth]
add $6
ld [hConnectionStripLength], a
ld de, $dcb9
ld b, $6
ld c, $5
.asm_28f7
push bc
push hl
push de
.asm_28fa
ld a, [de]
inc de
ld [hli], a
dec b
jr nz, .asm_28fa
pop de
ld a, e
add $6
ld e, a
jr nc, .asm_2908
inc d
.asm_2908
pop hl
ld a, [hConnectionStripLength]
ld c, a
ld b, $0
add hl, bc
pop bc
dec c
jr nz, .asm_28f7
ret
; 2914
Function2914: ; 2914
xor a
ld [TilePermissions], a
call Function296c
call Function294d
ld a, [MapX]
ld d, a
ld a, [MapY]
ld e, a
call Function2a3c
ld [StandingTile], a
call Function29ff
ret nz
ld a, [StandingTile]
and 7
ld hl, .data_2945
add l
ld l, a
ld a, 0
adc h
ld h, a
ld a, [hl]
ld hl, TilePermissions
or [hl]
ld [hl], a
ret
; 2945
.data_2945 ; 2945
db 1, 2, 4, 8, 9, 10, 5, 6
; 294d
Function294d: ; 294d
ld a, [MapX]
ld d, a
ld a, [MapY]
ld e, a
push de
inc e
call Function2a3c
ld [TileDown], a
call Function298b
pop de
dec e
call Function2a3c
ld [TileUp], a
call Function29a8
ret
; 296c
Function296c: ; 296c
ld a, [MapX]
ld d, a
ld a, [MapY]
ld e, a
push de
dec d
call Function2a3c
ld [TileLeft], a
call Function29e2
pop de
inc d
call Function2a3c
ld [TileRight], a
call Function29c5
ret
; 298b
Function298b: ; 298b
call Function29ff
ret nz
ld a, [TileDown]
and $7
cp $2
jr z, .asm_299f
cp $6
jr z, .asm_299f
cp $7
ret nz
.asm_299f
ld a, [TilePermissions]
or $8
ld [TilePermissions], a
ret
; 29a8
Function29a8: ; 29a8
call Function29ff
ret nz
ld a, [TileUp]
and $7
cp $3
jr z, .asm_29bc
cp $4
jr z, .asm_29bc
cp $5
ret nz
.asm_29bc
ld a, [TilePermissions]
or $4
ld [TilePermissions], a
ret
; 29c5
Function29c5: ; 29c5
call Function29ff
ret nz
ld a, [TileRight]
and $7
cp $1
jr z, .asm_29d9
cp $5
jr z, .asm_29d9
cp $7
ret nz
.asm_29d9
ld a, [TilePermissions]
or $1
ld [TilePermissions], a
ret
; 29e2
Function29e2: ; 29e2
call Function29ff
ret nz
ld a, [TileLeft]
and $7
cp $0
jr z, .asm_29f6
cp $4
jr z, .asm_29f6
cp $6
ret nz
.asm_29f6
ld a, [TilePermissions]
or $2
ld [TilePermissions], a
ret
; 29ff
Function29ff: ; 29ff
and $f0
cp $b0
ret z
cp $c0
ret
; 2a07
GetFacingTileCoord: ; 2a07
; Return map coordinates in (d, e) and tile id in a
; of the tile the player is facing.
ld a, [PlayerDirection]
and %1100
srl a
srl a
ld l, a
ld h, 0
add hl, hl
add hl, hl
ld de, .Directions
add hl, de
ld d, [hl]
inc hl
ld e, [hl]
inc hl
ld a, [hli]
ld h, [hl]
ld l, a
ld a, [MapX]
add d
ld d, a
ld a, [MapY]
add e
ld e, a
ld a, [hl]
ret
.Directions
; x, y
db 0, 1
dw TileDown
db 0, -1
dw TileUp
db -1, 0
dw TileLeft
db 1, 0
dw TileRight
; 2a3c
Function2a3c: ; 2a3c
call Function2a66
ld a, [hl]
and a
jr z, .asm_2a63
ld l, a
ld h, $0
add hl, hl
add hl, hl
ld a, [TilesetCollisionAddress]
ld c, a
ld a, [$d1e1]
ld b, a
add hl, bc
rr d
jr nc, .asm_2a56
inc hl
.asm_2a56
rr e
jr nc, .asm_2a5c
inc hl
inc hl
.asm_2a5c
ld a, [TilesetCollisionBank]
call GetFarByte
ret
.asm_2a63
ld a, $ff
ret
; 2a66
Function2a66: ; 2a66
ld a, [MapWidth]
add $6
ld c, a
ld b, $0
ld hl, $c801
add hl, bc
ld a, e
srl a
jr z, .asm_2a84
and a
.asm_2a78
srl a
jr nc, .asm_2a7d
add hl, bc
.asm_2a7d
sla c
rl b
and a
jr nz, .asm_2a78
.asm_2a84
ld c, d
srl c
ld b, $0
add hl, bc
ret
; 2a8b
CheckFacingSign: ; 2a8b
call GetFacingTileCoord
ld b, a
ld a, d
sub 4
ld d, a
ld a, e
sub 4
ld e, a
ld a, [$dc01]
and a
ret z
ld c, a
ld a, [hROMBank]
push af
call Function2c52
call Function2aaa
pop hl
ld a, h
rst Bankswitch
ret
; 2aaa
Function2aaa: ; 2aaa
ld hl, $dc02
ld a, [hli]
ld h, [hl]
ld l, a
.asm_2ab0
push hl
ld a, [hli]
cp e
jr nz, .asm_2abb
ld a, [hli]
cp d
jr nz, .asm_2abb
jr .asm_2ac8
.asm_2abb
pop hl
ld a, 5
add l
ld l, a
jr nc, .asm_2ac3
inc h
.asm_2ac3
dec c
jr nz, .asm_2ab0
xor a
ret
.asm_2ac8
pop hl
ld de, EngineBuffer1
ld bc, 5
call CopyBytes
scf
ret
; 2ad4
Function2ad4: ; 2ad4
ld a, [$dbfe]
and a
ret z
ld c, a
ld a, [hROMBank]
push af
call Function2c52
call Function2ae7
pop hl
ld a, h
rst Bankswitch
ret
; 2ae7
Function2ae7: ; 2ae7
ld hl, $dbff
ld a, [hli]
ld h, [hl]
ld l, a
call Function211b
ld b, a
ld a, [MapX]
sub $4
ld d, a
ld a, [MapY]
sub $4
ld e, a
.asm_2afd
push hl
ld a, [hli]
cp b
jr z, .asm_2b06
cp $ff
jr nz, .asm_2b10
.asm_2b06
ld a, [hli]
cp e
jr nz, .asm_2b10
ld a, [hli]
cp d
jr nz, .asm_2b10
jr .asm_2b1d
.asm_2b10
pop hl
ld a, $8
add l
ld l, a
jr nc, .asm_2b18
inc h
.asm_2b18
dec c
jr nz, .asm_2afd
xor a
ret
.asm_2b1d
pop hl
ld de, EngineBuffer1
ld bc, $0008
call CopyBytes
scf
ret
; 2b29
FadeToMenu: ; 2b29
xor a
ld [hBGMapMode], a
call Function1d6e
callba Function8c084
call ClearSprites
call Function2ed3
ret
; 2b3c
Function2b3c: ; 2b3c
call WhiteBGMap
call Function2bae
call Function1ad2
call Function1d7d
call Functiond90
jr Function2b5c
; 2b4d
Function2b4d: ; 2b4d
call WhiteBGMap
call Function1d7d
call Function2bae
call Function1ad2
call Functiond90
; 2b5c
Function2b5c: ; 2b5c
ld b, $9
call GetSGBLayout
callba Function49409
call Function3200
callba Function8c079
call Function2ee4
ret
; 2b74
Function2b74: ; 0x2b74
push af
ld a, $1
ld [$c2ce], a
call WhiteBGMap
call ClearSprites
call Function2bae
ld hl, $c590 ; tile 0, 12
ld bc, $0412
call TextBox
ld hl, VramState
set 0, [hl]
call Function1ad2
call Function3200
ld b, $9
call GetSGBLayout
callba Function49409
call UpdateTimePals
call DelayFrame
ld a, $1
ld [$ffde], a
pop af
ret
; 0x2bae
Function2bae: ; 2bae
call DisableLCD
call ClearSprites
callba Function14168
call Functione51
call Functione5f
ld a, [hROMBank]
push af
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
call Function2c24
callba Function8c001
call Function2173
call Function2821
ld a, $9
call Function3cb4
pop af
rst Bankswitch
call EnableLCD
ret
; 2be5
GetMapHeaderPointer: ; 2be5
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
; 2bed
GetAnyMapHeaderPointer: ; 0x2bed
; Prior to calling this function, you must have switched banks so that
; MapGroupPointers is visible.
; inputs:
; b = map group, c = map number
; XXX de = ???
; outputs:
; hl points to the map header
push bc ; save map number for later
; get pointer to map group
dec b
ld c, b
ld b, $0
ld hl, MapGroupPointers
add hl, bc
add hl, bc
ld a, [hli]
ld h, [hl]
ld l, a
pop bc ; restore map number
; find the cth map header
dec c
ld b, $0
ld a, OlivineGym_MapHeader - OlivinePokeCenter1F_MapHeader
call AddNTimes
ret
; 0x2c04
GetMapHeaderMember: ; 0x2c04
; Extract data from the current map's header.
; inputs:
; de = offset of desired data within the mapheader
; outputs:
; 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, [hROMBank]
push af
ld a, BANK(MapGroupPointers)
rst Bankswitch
call GetAnyMapHeaderPointer
add hl, de
ld c, [hl]
inc hl
ld b, [hl]
; bankswitch back
pop af
rst Bankswitch
ret
; 0x2c1c
Function2c1c: ; 2c1c
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
; 2c24
Function2c24: ; 2c24
call Function2c31
rst Bankswitch
ret
; 2c29
Function2c29: ; 2c29
ld a, [MapGroup]
ld b, a
ld a, [MapNumber]
ld c, a
; 2c31
Function2c31: ; 2c31
push hl
push de
ld de, $0000
call GetAnyMapHeaderMember
ld a, c
pop de
pop hl
ret
; 2c3d
Function2c3d: ; 2c3d
ld a, [hROMBank]
push af
ld a, $25
rst Bankswitch
call GetMapHeaderPointer
ld de, $d198
ld bc, $0005
call CopyBytes
pop af
rst Bankswitch
ret
; 2c52
Function2c52: ; 2c52
ld a, [MapScriptHeaderBank]
rst Bankswitch
ret
; 2c57
GetMapScriptHeaderBank: ; 2c57
ld a, [MapScriptHeaderBank]
ret
; 2c5b
GetAnyMapBlockdataBank: ; 2c5b
; Return the blockdata bank for group b map c.
push hl
push de
push bc
push bc
ld de, 3 ; second map header pointer
call GetAnyMapHeaderMember
ld l, c
ld h, b
pop bc
push hl
ld de, 0 ; second map header bank
call GetAnyMapHeaderMember
pop hl
ld de, 3 ; blockdata bank
add hl, de
ld a, c
call GetFarByte
rst Bankswitch
pop bc
pop de
pop hl
ret
; 2c7d
GetSecondaryMapHeaderPointer: ; 0x2c7d
; returns the current map's secondary map header pointer in hl.
push bc
push de
ld de, $0003 ; secondary map header pointer (offset within header)
call GetMapHeaderMember
ld l, c
ld h, b
pop de
pop bc
ret
; 2c8a
GetMapPermission: ; 2c8a
push hl
push de
push bc
ld de, 2
call GetMapHeaderMember
ld a, c
pop bc
pop de
pop hl
ret
; 2c98
Function2c98: ; 2c98
ret
; 2c99
Function2c99: ; 2c99
push hl
push de
push bc
ld de, $0002
call GetAnyMapHeaderMember
ld a, c
pop bc
pop de
pop hl
ret
; 2ca7
Function2ca7: ; 2ca7
ld de, $0001
call GetAnyMapHeaderMember
ld a, c
ret
; 2caf
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
Function2cbd: ; 2cbd
push hl
push bc
ld de, $0006
call GetMapHeaderMember
ld a, c
cp $64
jr z, .asm_2cee
bit 7, c
jr nz, .asm_2cda
callba Function8b342
ld e, c
ld d, $0
.asm_2cd7
pop bc
pop hl
ret
.asm_2cda
ld a, [StatusFlags2]
bit 0, a
jr z, .asm_2ce6
ld de, $0056
jr .asm_2cd7
.asm_2ce6
ld a, c
and $7f
ld e, a
ld d, $0
jr .asm_2cd7
.asm_2cee
ld a, [StatusFlags2]
bit 7, a
jr z, .asm_2cfa
ld de, $0048
jr .asm_2cd7
.asm_2cfa
ld de, $0026
jr .asm_2cd7
; 2cff
Function2cff: ; 2cff
call Function2d0d
and $f
ret
; 2d05
Function2d05: ; 2d05
call Function2d0d
and $f0
swap a
ret
; 2d0d
Function2d0d: ; 2d0d
push hl
push bc
ld de, $0007
call GetMapHeaderMember
ld a, c
pop bc
pop hl
ret
; 2d19
Function2d19: ; 2d19
push de
push hl
push bc
ld de, $0008
call GetMapHeaderMember
ld a, c
pop bc
pop hl
pop de
ret
; 2d27
Function2d27: ; 2d27
push hl
push bc
ld hl, $5596
ld bc, $000f
ld a, [$d199]
call AddNTimes
ld de, TilesetBank
ld bc, $000f
ld a, $13
call FarCopyBytes
pop bc
pop hl
ret
; 2d43
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