ref: 7e92d5ba8c7d7c255a49bce76239ec12d6398cef
dir: /home/predef_text.asm/
; this function is used to display sign messages, sprite dialog, etc. ; INPUT: [hSpriteIndexOrTextID] = sprite ID or text ID DisplayTextID:: ld a, [hLoadedROMBank] push af callba DisplayTextIDInit ; initialization ld hl, wTextPredefFlag bit 0, [hl] res 0, [hl] jr nz, .skipSwitchToMapBank ld a, [wCurMap] call SwitchToMapRomBank .skipSwitchToMapBank ld a, 30 ; half a second ld [hFrameCounter], a ; used as joypad poll timer ld hl, wMapTextPtr ld a, [hli] ld h, [hl] ld l, a ; hl = map text pointer ld d, $00 ld a, [hSpriteIndexOrTextID] ; text ID ld [wSpriteIndex], a and a jp z, DisplayStartMenu cp TEXT_SAFARI_GAME_OVER jp z, DisplaySafariGameOverText cp TEXT_MON_FAINTED jp z, DisplayPokemonFaintedText cp TEXT_BLACKED_OUT jp z, DisplayPlayerBlackedOutText cp TEXT_REPEL_WORE_OFF jp z, DisplayRepelWoreOffText ld a, [wNumSprites] ld e, a ld a, [hSpriteIndexOrTextID] ; sprite ID cp e jr z, .spriteHandling jr nc, .skipSpriteHandling .spriteHandling ; get the text ID of the sprite push hl push de push bc callba UpdateSpriteFacingOffsetAndDelayMovement ; update the graphics of the sprite the player is talking to (to face the right direction) pop bc pop de ld hl, wMapSpriteData ; NPC text entries ld a, [hSpriteIndexOrTextID] dec a add a add l ld l, a jr nc, .noCarry inc h .noCarry inc hl ld a, [hl] ; a = text ID of the sprite pop hl .skipSpriteHandling ; look up the address of the text in the map's text entries dec a ld e, a sla e add hl, de ld a, [hli] ld h, [hl] ld l, a ; hl = address of the text ld a, [hl] ; a = first byte of text ; check first byte of text for special cases cp $fe ; Pokemart NPC jp z, DisplayPokemartDialogue cp $ff ; Pokemon Center NPC jp z, DisplayPokemonCenterDialogue cp $fc ; Item Storage PC jp z, FuncTX_ItemStoragePC cp $fd ; Bill's PC jp z, FuncTX_BillsPC cp $f9 ; Pokemon Center PC jp z, FuncTX_PokemonCenterPC cp $f5 ; Vending Machine jr nz, .notVendingMachine callba VendingMachineMenu ; jump banks to vending machine routine jr AfterDisplayingTextID .notVendingMachine cp $f7 ; prize menu jp z, FuncTX_GameCornerPrizeMenu cp $f6 ; cable connection NPC in Pokemon Center jr nz, .notSpecialCase callab CableClubNPC jr AfterDisplayingTextID .notSpecialCase call PrintText_NoCreatingTextBox ; display the text ld a, [wDoNotWaitForButtonPressAfterDisplayingText] and a jr nz, HoldTextDisplayOpen AfterDisplayingTextID:: ld a, [wEnteringCableClub] and a jr nz, HoldTextDisplayOpen call WaitForTextScrollButtonPress ; wait for a button press after displaying all the text ; loop to hold the dialogue box open as long as the player keeps holding down the A button HoldTextDisplayOpen:: call Joypad ld a, [hJoyHeld] bit 0, a ; is the A button being pressed? jr nz, HoldTextDisplayOpen CloseTextDisplay:: ld a, [wCurMap] call SwitchToMapRomBank ld a, $90 ld [hWY], a ; move the window off the screen call DelayFrame call LoadGBPal xor a ld [hAutoBGTransferEnabled], a ; disable continuous WRAM to VRAM transfer each V-blank ; loop to make sprites face the directions they originally faced before the dialogue ld hl, wSpriteStateData2 + $19 ld c, $0f ld de, $0010 .restoreSpriteFacingDirectionLoop ld a, [hl] dec h ld [hl], a inc h add hl, de dec c jr nz, .restoreSpriteFacingDirectionLoop ld a, BANK(InitMapSprites) ld [hLoadedROMBank], a ld [MBC1RomBank], a call InitMapSprites ; reload sprite tile pattern data (since it was partially overwritten by text tile patterns) ld hl, wFontLoaded res 0, [hl] ld a, [wd732] bit 3, a ; used fly warp call z, LoadPlayerSpriteGraphics call LoadCurrentMapView pop af ld [hLoadedROMBank], a ld [MBC1RomBank], a jp UpdateSprites DisplayPokemartDialogue:: push hl ld hl, PokemartGreetingText call PrintText pop hl inc hl call LoadItemList ld a, PRICEDITEMLISTMENU ld [wListMenuID], a ld a, [hLoadedROMBank] push af ld a, BANK(DisplayPokemartDialogue_) ld [hLoadedROMBank], a ld [MBC1RomBank], a call DisplayPokemartDialogue_ pop af ld [hLoadedROMBank], a ld [MBC1RomBank], a jp AfterDisplayingTextID PokemartGreetingText:: TX_FAR _PokemartGreetingText db "@" LoadItemList:: ld a, 1 ld [wUpdateSpritesEnabled], a ld a, h ld [wItemListPointer], a ld a, l ld [wItemListPointer + 1], a ld de, wItemList .loop ld a, [hli] ld [de], a inc de cp $ff jr nz, .loop ret DisplayPokemonCenterDialogue:: ; zeroing these doesn't appear to serve any purpose xor a ld [hItemPrice], a ld [hItemPrice + 1], a ld [hItemPrice + 2], a inc hl ld a, [hLoadedROMBank] push af ld a, BANK(DisplayPokemonCenterDialogue_) ld [hLoadedROMBank], a ld [MBC1RomBank], a call DisplayPokemonCenterDialogue_ pop af ld [hLoadedROMBank], a ld [MBC1RomBank], a jp AfterDisplayingTextID DisplaySafariGameOverText:: callab PrintSafariGameOverText jp AfterDisplayingTextID DisplayPokemonFaintedText:: ld hl, PokemonFaintedText call PrintText jp AfterDisplayingTextID PokemonFaintedText:: TX_FAR _PokemonFaintedText db "@" DisplayPlayerBlackedOutText:: ld hl, PlayerBlackedOutText call PrintText ld a, [wd732] res 5, a ; reset forced to use bike bit ld [wd732], a jp HoldTextDisplayOpen PlayerBlackedOutText:: TX_FAR _PlayerBlackedOutText db "@" DisplayRepelWoreOffText:: ld hl, RepelWoreOffText call PrintText jp AfterDisplayingTextID RepelWoreOffText:: TX_FAR _RepelWoreOffText db "@"