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-rw-r--r--engine/pokerus.asm160
1 files changed, 0 insertions, 160 deletions
diff --git a/engine/pokerus.asm b/engine/pokerus.asm
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--- a/engine/pokerus.asm
+++ /dev/null
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-GivePokerusAndConvertBerries: ; 2ed44
- call ConvertBerriesToBerryJuice
- ld hl, PartyMon1PokerusStatus
- ld a, [PartyCount]
- ld b, a
- ld de, PARTYMON_STRUCT_LENGTH
-; Check to see if any of your Pokemon already has Pokerus.
-; If so, sample its spread through your party.
-; This means that you cannot get Pokerus de novo while
-; a party member has an active infection.
-.loopMons
- ld a, [hl]
- and $f
- jr nz, .TrySpreadPokerus
- add hl, de
- dec b
- jr nz, .loopMons
-
-; If we haven't been to Goldenrod City at least once,
-; prevent the contraction of Pokerus.
- ld hl, StatusFlags2
- bit 6, [hl]
- ret z
- call Random
- ld a, [hRandomAdd]
- and a
- ret nz
- ld a, [hRandomSub]
- cp $3
- ret nc ; 3/65536 chance (00 00, 00 01 or 00 02)
- ld a, [PartyCount]
- ld b, a
-.randomMonSelectLoop
- call Random
- and $7
- cp b
- jr nc, .randomMonSelectLoop
- ld hl, PartyMon1PokerusStatus
- call GetPartyLocation ; get pokerus byte of random mon
- ld a, [hl]
- and $f0
- ret nz ; if it already has pokerus, do nothing
-.randomPokerusLoop ; Simultaneously sample the strain and duration
- call Random
- and a
- jr z, .randomPokerusLoop
- ld b, a
- and $f0
- jr z, .load_pkrs
- ld a, b
- and $7
- inc a
-.load_pkrs
- ld b, a ; this should come before the label
- swap b
- and $3
- inc a
- add b
- ld [hl], a
- ret
-
-.TrySpreadPokerus:
- call Random
- cp 1 + 33 percent
- ret nc ; 1/3 chance
-
- ld a, [PartyCount]
- cp 1
- ret z ; only one mon, nothing to do
-
- ld c, [hl]
- ld a, b
- cp 2
- jr c, .checkPreviousMonsLoop ; no more mons after this one, go backwards
-
- call Random
- cp 1 + 50 percent
- jr c, .checkPreviousMonsLoop ; 1/2 chance, go backwards
-.checkFollowingMonsLoop
- add hl, de
- ld a, [hl]
- and a
- jr z, .infectMon
- ld c, a
- and $3
- ret z ; if mon has cured pokerus, stop searching
- dec b ; go on to next mon
- ld a, b
- cp 1
- jr nz, .checkFollowingMonsLoop ; no more mons left
- ret
-
-.checkPreviousMonsLoop
- ld a, [PartyCount]
- cp b
- ret z ; no more mons
- ld a, l
- sub e
- ld l, a
- ld a, h
- sbc d
- ld h, a
- ld a, [hl]
- and a
- jr z, .infectMon
- ld c, a
- and $3
- ret z ; if mon has cured pokerus, stop searching
- inc b ; go on to next mon
- jr .checkPreviousMonsLoop
-
-.infectMon
- ld a, c
- and $f0
- ld b, a
- ld a, c
- swap a
- and $3
- inc a
- add b
- ld [hl], a
- ret
-
-; any berry held by a Shuckle may be converted to berry juice
-ConvertBerriesToBerryJuice: ; 2ede6
- ld hl, StatusFlags2
- bit 6, [hl]
- ret z
- call Random
- cp $10
- ret nc ; 1/16 chance
- ld hl, PartyMons
- ld a, [PartyCount]
-.partyMonLoop
- push af
- push hl
- ld a, [hl]
- cp SHUCKLE
- jr nz, .loopMon
- ld bc, MON_ITEM
- add hl, bc
- ld a, [hl]
- cp BERRY
- jr z, .convertToJuice
-
-.loopMon
- pop hl
- ld bc, PARTYMON_STRUCT_LENGTH
- add hl, bc
- pop af
- dec a
- jr nz, .partyMonLoop
- ret
-
-.convertToJuice
- ld a, BERRY_JUICE
- ld [hl], a
- pop hl
- pop af
- ret