mirror of https://github.com/pret/pokecrystal.git
273 lines
4.0 KiB
NASM
273 lines
4.0 KiB
NASM
BeastsCheck:
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; Check if the player owns all three legendary beasts.
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; They must exist in either party or PC, and have the player's OT and ID.
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; Return the result in wScriptVar.
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ld a, RAIKOU
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ld [wScriptVar], a
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call CheckOwnMonAnywhere
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jr nc, .notexist
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ld a, ENTEI
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ld [wScriptVar], a
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call CheckOwnMonAnywhere
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jr nc, .notexist
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ld a, SUICUNE
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ld [wScriptVar], a
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call CheckOwnMonAnywhere
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jr nc, .notexist
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; they exist
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ld a, 1
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ld [wScriptVar], a
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ret
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.notexist
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xor a
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ld [wScriptVar], a
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ret
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MonCheck:
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; Check if the player owns any Pokémon of the species in wScriptVar.
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; Return the result in wScriptVar.
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call CheckOwnMonAnywhere
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jr c, .exists
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; doesn't exist
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xor a
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ld [wScriptVar], a
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ret
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.exists
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ld a, 1
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ld [wScriptVar], a
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ret
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CheckOwnMonAnywhere:
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; Check if the player owns any monsters of the species in wScriptVar.
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; It must exist in either party or PC, and have the player's OT and ID.
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; If there are no monsters in the party,
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; the player must not own any yet.
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ld a, [wPartyCount]
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and a
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ret z
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ld d, a
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ld e, 0
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ld hl, wPartyMon1Species
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ld bc, wPartyMonOTs
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; Run CheckOwnMon on each Pokémon in the party.
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.partymon
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call CheckOwnMon
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ret c ; found!
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push bc
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ld bc, PARTYMON_STRUCT_LENGTH
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add hl, bc
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pop bc
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call UpdateOTPointer
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dec d
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jr nz, .partymon
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; Run CheckOwnMon on each Pokémon in the PC.
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ld a, BANK(sBoxCount)
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call OpenSRAM
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ld a, [sBoxCount]
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and a
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jr z, .boxes
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ld d, a
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ld hl, sBoxMon1Species
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ld bc, sBoxMonOTs
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.openboxmon
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call CheckOwnMon
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jr nc, .loop
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; found!
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call CloseSRAM
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ret
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.loop
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push bc
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ld bc, BOXMON_STRUCT_LENGTH
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add hl, bc
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pop bc
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call UpdateOTPointer
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dec d
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jr nz, .openboxmon
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; Run CheckOwnMon on each monster in the other 13 PC boxes.
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.boxes
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call CloseSRAM
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ld c, 0
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.box
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; Don't search the current box again.
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ld a, [wCurBox]
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and $f
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cp c
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jr z, .loopbox
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; Load the box.
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ld hl, SearchBoxAddressTable
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ld b, 0
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add hl, bc
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add hl, bc
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add hl, bc
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ld a, [hli]
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call OpenSRAM
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ld a, [hli]
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ld h, [hl]
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ld l, a
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; Number of monsters in the box
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ld a, [hl]
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and a
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jr z, .loopbox
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push bc
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push hl
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ld de, sBoxMons - sBoxCount
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add hl, de
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ld d, h
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ld e, l
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pop hl
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push de
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ld de, sBoxMonOTs - sBoxCount
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add hl, de
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ld b, h
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ld c, l
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pop hl
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ld d, a
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.boxmon
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call CheckOwnMon
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jr nc, .loopboxmon
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; found!
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pop bc
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call CloseSRAM
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ret
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.loopboxmon
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push bc
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ld bc, BOXMON_STRUCT_LENGTH
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add hl, bc
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pop bc
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call UpdateOTPointer
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dec d
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jr nz, .boxmon
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pop bc
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.loopbox
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inc c
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ld a, c
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cp NUM_BOXES
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jr c, .box
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; not found
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call CloseSRAM
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and a
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ret
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CheckOwnMon:
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; Check if a Pokémon belongs to the player and is of a specific species.
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; inputs:
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; hl, pointer to PartyMonNSpecies
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; bc, pointer to PartyMonNOT
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; wScriptVar should contain the species we're looking for
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; outputs:
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; sets carry if monster matches species, ID, and OT name.
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push bc
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push hl
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push de
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ld d, b
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ld e, c
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; check species
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ld a, [wScriptVar] ; species we're looking for
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ld b, [hl] ; species we have
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cp b
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jr nz, .notfound ; species doesn't match
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; check ID number
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ld bc, MON_ID
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add hl, bc ; now hl points to ID number
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ld a, [wPlayerID]
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cp [hl]
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jr nz, .notfound ; ID doesn't match
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inc hl
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ld a, [wPlayerID + 1]
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cp [hl]
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jr nz, .notfound ; ID doesn't match
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; check OT
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; This only checks five characters, which is fine for the Japanese version,
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; but in the English version the player name is 7 characters, so this is wrong.
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ld hl, wPlayerName
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rept NAME_LENGTH_JAPANESE - 2 ; should be PLAYER_NAME_LENGTH - 2
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ld a, [de]
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cp [hl]
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jr nz, .notfound
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cp "@"
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jr z, .found ; reached end of string
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inc hl
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inc de
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endr
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ld a, [de]
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cp [hl]
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jr z, .found
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.notfound
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pop de
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pop hl
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pop bc
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and a
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ret
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.found
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pop de
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pop hl
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pop bc
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scf
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ret
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SearchBoxAddressTable:
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table_width 3, SearchBoxAddressTable
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dba sBox1
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dba sBox2
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dba sBox3
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dba sBox4
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dba sBox5
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dba sBox6
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dba sBox7
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dba sBox8
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dba sBox9
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dba sBox10
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dba sBox11
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dba sBox12
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dba sBox13
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dba sBox14
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assert_table_length NUM_BOXES
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UpdateOTPointer:
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push hl
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ld hl, NAME_LENGTH
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add hl, bc
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ld b, h
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ld c, l
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pop hl
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ret
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