ref: 597701f168e69a316f18951e3002c322e23cf3ea
dir: /engine/movie/credits.asm/
INCLUDE "constants.asm" SECTION "Credits", ROMX Credits:: bit 6, b ; Hall Of Fame ld a, $0 jr z, .okay ld a, $40 .okay ld [wJumptableIndex], a ldh a, [rSVBK] push af ld a, BANK(wGBCPalettes) ldh [rSVBK], a call ClearBGPalettes call ClearTilemap call ClearSprites ld hl, wCreditsBlankFrame2bpp ld c, (wCreditsBlankFrame2bppEnd - wCreditsBlankFrame2bpp) / 2 ld de, `22222222 ; eight pixels, each color #2 (dark) ; Fill wCreditsBlankFrame2bpp with 4x4=16 tiles, all solid dark color ; (the same color used for the four border frame mons' backgrounds) .load_loop ld a, e ld [hli], a ld a, d ld [hli], a dec c jr nz, .load_loop ld de, CreditsBorderGFX ld hl, vTiles2 tile $20 lb bc, BANK(CreditsBorderGFX), 9 call Request2bpp ld de, CopyrightGFX ld hl, vTiles2 tile $60 lb bc, BANK(CopyrightGFX), 29 call Request2bpp ld de, TheEndGFX ld hl, vTiles2 tile $40 lb bc, BANK(TheEndGFX), 16 call Request2bpp ld a, $ff ld [wCreditsBorderFrame], a xor a ld [wCreditsBorderMon], a call Credits_LoadBorderGFX ld e, l ld d, h ld hl, vTiles2 lb bc, BANK(CreditsMonsGFX), 16 call Request2bpp call ConstructCreditsTilemap xor a ld [wCreditsLYOverride], a ld hl, wLYOverrides ld bc, $100 xor a call ByteFill ld a, LOW(rSCX) ldh [hLCDCPointer], a call GetCreditsPalette call SetPalettes ldh a, [hVBlank] push af ld a, $5 ldh [hVBlank], a ld a, TRUE ldh [hInMenu], a xor a ldh [hBGMapMode], a ld [wCreditsPos], a ld [wCreditsPos + 1], a ld [wCreditsTimer], a .execution_loop call Credits_HandleBButton call Credits_HandleAButton jr nz, .exit_credits call Credits_Jumptable call DelayFrame jr .execution_loop .exit_credits call ClearBGPalettes xor a ldh [hLCDCPointer], a ldh [hBGMapAddress], a pop af ldh [hVBlank], a pop af ldh [rSVBK], a ret Credits_HandleAButton: ldh a, [hJoypadDown] and A_BUTTON ret z ld a, [wJumptableIndex] bit 7, a ret Credits_HandleBButton: ldh a, [hJoypadDown] and B_BUTTON ret z ld a, [wJumptableIndex] bit 6, a ret z ld hl, wCreditsPos ld a, [hli] cp $d jr nc, .okay ld a, [hli] and a ret z .okay ld hl, wCreditsTimer ld a, [hl] and a ret z dec [hl] ret Credits_Jumptable: ld a, [wJumptableIndex] and $f ld e, a ld d, 0 ld hl, .Jumptable add hl, de add hl, de ld a, [hli] ld h, [hl] ld l, a jp hl .Jumptable: dw ParseCredits dw Credits_Next dw Credits_Next dw Credits_PrepBGMapUpdate dw Credits_UpdateGFXRequestPath dw Credits_RequestGFX dw Credits_LYOverride dw Credits_Next dw Credits_Next dw Credits_Next dw Credits_UpdateGFXRequestPath dw Credits_RequestGFX dw Credits_LoopBack Credits_Next: ld hl, wJumptableIndex inc [hl] ret Credits_LoopBack: ld hl, wJumptableIndex ld a, [hl] and $f0 ld [hl], a ret Credits_PrepBGMapUpdate: xor a ldh [hBGMapMode], a jp Credits_Next Credits_UpdateGFXRequestPath: call Credits_LoadBorderGFX ld a, l ld [wRequested2bppSource], a ld a, h ld [wRequested2bppSource + 1], a ld a, LOW(vTiles2) ld [wRequested2bppDest], a ld a, HIGH(vTiles2) ld [wRequested2bppDest + 1], a jr Credits_RequestGFX Credits_RequestGFX: xor a ldh [hBGMapMode], a ld a, 8 ld [wRequested2bppSize], a jp Credits_Next Credits_LYOverride: ldh a, [rLY] cp $30 jr c, Credits_LYOverride ld a, [wCreditsLYOverride] dec a dec a ld [wCreditsLYOverride], a ld hl, wLYOverrides + $1f call .Fill ld hl, wLYOverrides + $87 call .Fill jp Credits_Next .Fill: ld c, $8 .loop ld [hli], a dec c jr nz, .loop ret ParseCredits: ld hl, wJumptableIndex bit 7, [hl] jp nz, .done ; Wait until the timer has run out to parse the next command. ld hl, wCreditsTimer ld a, [hl] and a jr z, .parse ; One tick has passed. dec [hl] jp .done .parse ; First, let's clear the current text display, ; starting from line 5. xor a ldh [hBGMapMode], a hlcoord 0, 5 ld bc, SCREEN_WIDTH * 12 ld a, " " call ByteFill ; Then read the script. .loop call .get ; Commands: cp CREDITS_END jp z, .end cp CREDITS_WAIT jr z, .wait cp CREDITS_SCENE jr z, .scene cp CREDITS_CLEAR jr z, .clear cp CREDITS_MUSIC jr z, .music cp CREDITS_WAIT2 jr z, .wait2 cp CREDITS_THEEND jr z, .theend ; If it's not a command, it's a string identifier. push af ld e, a ld d, 0 ld hl, CreditsStringsPointers add hl, de add hl, de ld a, [hli] ld d, [hl] ld e, a pop af ; Strings spanning multiple lines have special cases. cp COPYRIGHT jr z, .copyright cp STAFF jr c, .staff ; The rest start from line 6. hlcoord 0, 6 jr .print .copyright hlcoord 2, 6 jr .print .staff hlcoord 0, 6 .print ; Print strings spaced every two lines. call .get ld bc, SCREEN_WIDTH * 2 call AddNTimes call PlaceString jr .loop .theend ; Display "The End" graphic. call Credits_TheEnd jr .loop .scene ; Update the scene number and corresponding palette. call .get ld [wCreditsBorderMon], a ; scene xor a ld [wCreditsBorderFrame], a ; frame call GetCreditsPalette call SetPalettes ; update hw pal registers jr .loop .clear ; Clear the banner. ld a, $ff ld [wCreditsBorderFrame], a ; frame jr .loop .music ; Play the credits music. ld de, MUSIC_CREDITS push de ld de, MUSIC_NONE call PlayMusic call DelayFrame pop de call PlayMusic jp .loop .wait2 ; Wait for some amount of ticks. call .get ld [wCreditsTimer], a jr .done .wait ; Wait for some amount of ticks, and do something else. call .get ld [wCreditsTimer], a xor a ldh [hBGMapThird], a ld a, 1 ldh [hBGMapMode], a .done jp Credits_Next .end ; Stop execution. ld hl, wJumptableIndex set 7, [hl] ld a, 32 ld [wMusicFade], a ld a, LOW(MUSIC_POST_CREDITS) ld [wMusicFadeID], a ld a, HIGH(MUSIC_POST_CREDITS) ld [wMusicFadeID + 1], a ret .get ; Get byte wCreditsPos from CreditsScript push hl push de ld a, [wCreditsPos] ld e, a ld a, [wCreditsPos + 1] ld d, a ld hl, CreditsScript add hl, de inc de ld a, e ld [wCreditsPos], a ld a, d ld [wCreditsPos + 1], a ld a, [hl] pop de pop hl ret ConstructCreditsTilemap: xor a ldh [hBGMapMode], a ld a, $c ldh [hBGMapAddress], a ld a, $28 hlcoord 0, 0 ld bc, SCREEN_HEIGHT * SCREEN_WIDTH call ByteFill ld a, $7f hlcoord 0, 4 ld bc, (SCREEN_HEIGHT - 4) * SCREEN_WIDTH call ByteFill hlcoord 0, 4 ld a, $24 call DrawCreditsBorder hlcoord 0, 17 ld a, $20 call DrawCreditsBorder hlcoord 0, 0, wAttrmap ld bc, 4 * SCREEN_WIDTH xor a call ByteFill hlcoord 0, 4, wAttrmap ld bc, SCREEN_WIDTH ld a, $1 call ByteFill hlcoord 0, 5, wAttrmap ld bc, 12 * SCREEN_WIDTH ld a, $2 call ByteFill hlcoord 0, 17, wAttrmap ld bc, SCREEN_WIDTH ld a, $1 call ByteFill call WaitBGMap2 xor a ldh [hBGMapMode], a ldh [hBGMapAddress], a hlcoord 0, 0 call .InitTopPortion call WaitBGMap2 ret .InitTopPortion: ld b, 5 .outer_loop push hl ld de, SCREEN_WIDTH - 3 ld c, 4 xor a .inner_loop rept 3 ld [hli], a inc a endr ld [hl], a inc a add hl, de dec c jr nz, .inner_loop pop hl rept 4 inc hl endr dec b jr nz, .outer_loop ret DrawCreditsBorder: ld c, SCREEN_WIDTH / 4 .loop push af rept 3 ld [hli], a inc a endr ld [hli], a pop af dec c jr nz, .loop ret GetCreditsPalette: call .GetPalAddress push hl ld a, 0 call .UpdatePals pop hl ret .GetPalAddress: ; Each set of palette data is 24 bytes long. ld a, [wCreditsBorderMon] ; scene and %11 add a add a ; * 8 add a ld e, a ld d, 0 ld hl, CreditsPalettes add hl, de add hl, de ; * 3 add hl, de ret .UpdatePals: ; Update the first three colors in both palette buffers. push af push hl add LOW(wBGPals1) ld e, a ld a, 0 adc HIGH(wBGPals1) ld d, a ld bc, 24 call CopyBytes pop hl pop af add LOW(wBGPals2) ld e, a ld a, 0 adc HIGH(wBGPals2) ld d, a ld bc, 24 call CopyBytes ret CreditsPalettes: INCLUDE "gfx/credits/credits.pal" Credits_LoadBorderGFX: ld hl, wCreditsBorderFrame ld a, [hl] cp $ff jr z, .init and %11 ld e, a inc a and %11 ld [hl], a ld a, [wCreditsBorderMon] and %11 add a add a add e add a ld e, a ld d, 0 ld hl, .Frames add hl, de ld a, [hli] ld h, [hl] ld l, a ret .init ld hl, wCreditsBlankFrame2bpp ret .Frames: dw CreditsPichuGFX dw CreditsPichuGFX + 16 tiles dw CreditsPichuGFX + 32 tiles dw CreditsPichuGFX + 48 tiles dw CreditsSmoochumGFX dw CreditsSmoochumGFX + 16 tiles dw CreditsSmoochumGFX + 32 tiles dw CreditsSmoochumGFX + 48 tiles dw CreditsDittoGFX dw CreditsDittoGFX + 16 tiles dw CreditsDittoGFX + 32 tiles dw CreditsDittoGFX + 48 tiles dw CreditsIgglybuffGFX dw CreditsIgglybuffGFX + 16 tiles dw CreditsIgglybuffGFX + 32 tiles dw CreditsIgglybuffGFX + 48 tiles Credits_TheEnd: ld a, $40 hlcoord 6, 9 call .Load hlcoord 6, 10 .Load: ld c, 8 .loop ld [hli], a inc a dec c jr nz, .loop ret CreditsBorderGFX: INCBIN "gfx/credits/border.2bpp" CreditsMonsGFX: ; used only for BANK(CreditsMonsGFX) CreditsPichuGFX: INCBIN "gfx/credits/pichu.2bpp" CreditsSmoochumGFX: INCBIN "gfx/credits/smoochum.2bpp" CreditsDittoGFX: INCBIN "gfx/credits/ditto.2bpp" CreditsIgglybuffGFX: INCBIN "gfx/credits/igglybuff.2bpp" INCLUDE "data/credits_script.asm" INCLUDE "data/credits_strings.asm"