ref: 4c6a58ee21326ff8249914704ba6043b8b9af239
dir: /home/pokemon.asm/
DrawHPBar:: ; Draw an HP bar d tiles long, and fill it to e pixels. ; If c is nonzero, show at least a sliver regardless. ; The right end of the bar changes with [wHPBarType]. push hl push de push bc ; Left ld a, $71 ; "HP:" ld [hli], a ld a, $62 ld [hli], a push hl ; Middle ld a, $63 ; empty .draw ld [hli], a dec d jr nz, .draw ; Right ld a, [wHPBarType] dec a ld a, $6d ; status screen and battle jr z, .ok dec a ; pokemon menu .ok ld [hl], a pop hl ld a, e and a jr nz, .fill ; If c is nonzero, draw a pixel anyway. ld a, c and a jr z, .done ld e, 1 .fill ld a, e sub 8 jr c, .partial ld e, a ld a, $6b ; full ld [hli], a ld a, e and a jr z, .done jr .fill .partial ; Fill remaining pixels at the end if necessary. ld a, $63 ; empty add e ld [hl], a .done pop bc pop de pop hl ret ; loads pokemon data from one of multiple sources to wLoadedMon ; loads base stats to wMonHeader ; INPUT: ; [wWhichPokemon] = index of pokemon within party/box ; [wMonDataLocation] = source ; 00: player's party ; 01: enemy's party ; 02: current box ; 03: daycare ; OUTPUT: ; [wcf91] = pokemon ID ; wLoadedMon = base address of pokemon data ; wMonHeader = base address of base stats LoadMonData:: jpfar LoadMonData_ OverwritewMoves:: ; Write c to [wMoves + b]. Unused. ld hl, wMoves ld e, b ld d, 0 add hl, de ld a, c ld [hl], a ret LoadFlippedFrontSpriteByMonIndex:: ld a, 1 ld [wSpriteFlipped], a LoadFrontSpriteByMonIndex:: push hl ld a, [wd11e] push af ld a, [wcf91] ld [wd11e], a predef IndexToPokedex ld hl, wd11e ld a, [hl] pop bc ld [hl], b and a pop hl jr z, .invalidDexNumber ; dex #0 invalid cp NUM_POKEMON + 1 jr c, .validDexNumber ; dex >#151 invalid .invalidDexNumber ld a, RHYDON ; $1 ld [wcf91], a ret .validDexNumber push hl ld de, vFrontPic call LoadMonFrontSprite pop hl ldh a, [hLoadedROMBank] push af ld a, BANK(CopyUncompressedPicToHL) ldh [hLoadedROMBank], a ld [MBC1RomBank], a xor a ldh [hStartTileID], a call CopyUncompressedPicToHL xor a ld [wSpriteFlipped], a pop af ldh [hLoadedROMBank], a ld [MBC1RomBank], a ret PlayCry:: ; Play monster a's cry. call GetCryData call PlaySound jp WaitForSoundToFinish GetCryData:: ; Load cry data for monster a. dec a ld c, a ld b, 0 ld hl, CryData add hl, bc add hl, bc add hl, bc ld a, BANK(CryData) call BankswitchHome ld a, [hli] ld b, a ; cry id ld a, [hli] ld [wFrequencyModifier], a ld a, [hl] ld [wTempoModifier], a call BankswitchBack ; Cry headers have 3 channels, ; and start from index CRY_SFX_START, ; so add 3 times the cry id. ld a, b ld c, CRY_SFX_START rlca ; * 2 add b add c ret DisplayPartyMenu:: ldh a, [hTileAnimations] push af xor a ldh [hTileAnimations], a call GBPalWhiteOutWithDelay3 call ClearSprites call PartyMenuInit call DrawPartyMenu jp HandlePartyMenuInput GoBackToPartyMenu:: ldh a, [hTileAnimations] push af xor a ldh [hTileAnimations], a call PartyMenuInit call RedrawPartyMenu jp HandlePartyMenuInput PartyMenuInit:: ld a, 1 ; hardcoded bank call BankswitchHome call LoadHpBarAndStatusTilePatterns ld hl, wd730 set 6, [hl] ; turn off letter printing delay xor a ; PLAYER_PARTY_DATA ld [wMonDataLocation], a ld [wMenuWatchMovingOutOfBounds], a ld hl, wTopMenuItemY inc a ld [hli], a ; top menu item Y xor a ld [hli], a ; top menu item X ld a, [wPartyAndBillsPCSavedMenuItem] push af ld [hli], a ; current menu item ID inc hl ld a, [wPartyCount] and a ; are there more than 0 pokemon in the party? jr z, .storeMaxMenuItemID dec a ; if party is not empty, the max menu item ID is ([wPartyCount] - 1) ; otherwise, it is 0 .storeMaxMenuItemID ld [hli], a ; max menu item ID ld a, [wForcePlayerToChooseMon] and a ld a, A_BUTTON | B_BUTTON jr z, .next xor a ld [wForcePlayerToChooseMon], a inc a ; a = A_BUTTON .next ld [hli], a ; menu watched keys pop af ld [hl], a ; old menu item ID ret HandlePartyMenuInput:: ld a, 1 ld [wMenuWrappingEnabled], a ld a, $40 ld [wPartyMenuAnimMonEnabled], a call HandleMenuInput_ call PlaceUnfilledArrowMenuCursor ld b, a xor a ld [wPartyMenuAnimMonEnabled], a ld a, [wCurrentMenuItem] ld [wPartyAndBillsPCSavedMenuItem], a ld hl, wd730 res 6, [hl] ; turn on letter printing delay ld a, [wMenuItemToSwap] and a jp nz, .swappingPokemon pop af ldh [hTileAnimations], a bit 1, b jr nz, .noPokemonChosen ld a, [wPartyCount] and a jr z, .noPokemonChosen ld a, [wCurrentMenuItem] ld [wWhichPokemon], a ld hl, wPartySpecies ld b, 0 ld c, a add hl, bc ld a, [hl] ld [wcf91], a ld [wBattleMonSpecies2], a call BankswitchBack and a ret .noPokemonChosen call BankswitchBack scf ret .swappingPokemon bit BIT_B_BUTTON, b jr z, .handleSwap ; if not, handle swapping the pokemon .cancelSwap ; if the B button was pressed farcall ErasePartyMenuCursors xor a ld [wMenuItemToSwap], a ld [wPartyMenuTypeOrMessageID], a call RedrawPartyMenu jr HandlePartyMenuInput .handleSwap ld a, [wCurrentMenuItem] ld [wWhichPokemon], a farcall SwitchPartyMon jr HandlePartyMenuInput DrawPartyMenu:: ld hl, DrawPartyMenu_ jr DrawPartyMenuCommon RedrawPartyMenu:: ld hl, RedrawPartyMenu_ DrawPartyMenuCommon:: ld b, BANK(RedrawPartyMenu_) jp Bankswitch ; prints a pokemon's status condition ; INPUT: ; de = address of status condition ; hl = destination address PrintStatusCondition:: push de dec de dec de ; de = address of current HP ld a, [de] ld b, a dec de ld a, [de] or b ; is the pokemon's HP zero? pop de jr nz, PrintStatusConditionNotFainted ; if the pokemon's HP is 0, print "FNT" ld a, "F" ld [hli], a ld a, "N" ld [hli], a ld [hl], "T" and a ret PrintStatusConditionNotFainted:: homecall_sf PrintStatusAilment ret ; function to print pokemon level, leaving off the ":L" if the level is at least 100 ; INPUT: ; hl = destination address ; [wLoadedMonLevel] = level PrintLevel:: ld a, "<LV>" ; ":L" tile ID ld [hli], a ld c, 2 ; number of digits ld a, [wLoadedMonLevel] ; level cp 100 jr c, PrintLevelCommon ; if level at least 100, write over the ":L" tile dec hl inc c ; increment number of digits to 3 jr PrintLevelCommon ; prints the level without leaving off ":L" regardless of level ; INPUT: ; hl = destination address ; [wLoadedMonLevel] = level PrintLevelFull:: ld a, "<LV>" ; ":L" tile ID ld [hli], a ld c, 3 ; number of digits ld a, [wLoadedMonLevel] ; level PrintLevelCommon:: ld [wd11e], a ld de, wd11e ld b, LEFT_ALIGN | 1 ; 1 byte jp PrintNumber GetwMoves:: ; Unused. Returns the move at index a from wMoves in a ld hl, wMoves ld c, a ld b, 0 add hl, bc ld a, [hl] ret ; copies the base stat data of a pokemon to wMonHeader ; INPUT: ; [wd0b5] = pokemon ID GetMonHeader:: ldh a, [hLoadedROMBank] push af ld a, BANK(BaseStats) ldh [hLoadedROMBank], a ld [MBC1RomBank], a push bc push de push hl ld a, [wd11e] push af ld a, [wd0b5] ld [wd11e], a ld de, FossilKabutopsPic ld b, $66 ; size of Kabutops fossil and Ghost sprites cp FOSSIL_KABUTOPS ; Kabutops fossil jr z, .specialID ld de, GhostPic cp MON_GHOST ; Ghost jr z, .specialID ld de, FossilAerodactylPic ld b, $77 ; size of Aerodactyl fossil sprite cp FOSSIL_AERODACTYL ; Aerodactyl fossil jr z, .specialID cp MEW jr z, .mew predef IndexToPokedex ; convert pokemon ID in [wd11e] to pokedex number ld a, [wd11e] dec a ld bc, BASE_DATA_SIZE ld hl, BaseStats call AddNTimes ld de, wMonHeader ld bc, BASE_DATA_SIZE call CopyData jr .done .specialID ld hl, wMonHSpriteDim ld [hl], b ; write sprite dimensions inc hl ld [hl], e ; write front sprite pointer inc hl ld [hl], d jr .done .mew ld hl, MewBaseStats ld de, wMonHeader ld bc, BASE_DATA_SIZE ld a, BANK(MewBaseStats) call FarCopyData .done ld a, [wd0b5] ld [wMonHIndex], a pop af ld [wd11e], a pop hl pop de pop bc pop af ldh [hLoadedROMBank], a ld [MBC1RomBank], a ret ; copy party pokemon's name to wcd6d GetPartyMonName2:: ld a, [wWhichPokemon] ; index within party ld hl, wPartyMonNicks ; this is called more often GetPartyMonName:: push hl push bc call SkipFixedLengthTextEntries ; add NAME_LENGTH to hl, a times ld de, wcd6d push de ld bc, NAME_LENGTH call CopyData pop de pop bc pop hl ret