ref: 1143019ac61bf88e0e4e3d62cdfaad6f846a5c67
dir: /home/start_menu.asm/
DisplayStartMenu:: ld a, BANK(StartMenu_Pokedex) ldh [hLoadedROMBank], a ld [MBC1RomBank], a ld a, [wWalkBikeSurfState] ; walking/biking/surfing ld [wWalkBikeSurfStateCopy], a ld a, SFX_START_MENU call PlaySound RedisplayStartMenu:: farcall DrawStartMenu farcall PrintSafariZoneSteps ; print Safari Zone info, if in Safari Zone call UpdateSprites .loop call HandleMenuInput ld b, a .checkIfUpPressed bit 6, a ; was Up pressed? jr z, .checkIfDownPressed ld a, [wCurrentMenuItem] ; menu selection and a jr nz, .loop ld a, [wLastMenuItem] and a jr nz, .loop ; if the player pressed tried to go past the top item, wrap around to the bottom CheckEvent EVENT_GOT_POKEDEX ld a, 6 ; there are 7 menu items with the pokedex, so the max index is 6 jr nz, .wrapMenuItemId dec a ; there are only 6 menu items without the pokedex .wrapMenuItemId ld [wCurrentMenuItem], a call EraseMenuCursor jr .loop .checkIfDownPressed bit 7, a jr z, .buttonPressed ; if the player pressed tried to go past the bottom item, wrap around to the top CheckEvent EVENT_GOT_POKEDEX ld a, [wCurrentMenuItem] ld c, 7 ; there are 7 menu items with the pokedex jr nz, .checkIfPastBottom dec c ; there are only 6 menu items without the pokedex .checkIfPastBottom cp c jr nz, .loop ; the player went past the bottom, so wrap to the top xor a ld [wCurrentMenuItem], a call EraseMenuCursor jr .loop .buttonPressed ; A, B, or Start button pressed call PlaceUnfilledArrowMenuCursor ld a, [wCurrentMenuItem] ld [wBattleAndStartSavedMenuItem], a ; save current menu selection ld a, b and %00001010 ; was the Start button or B button pressed? jp nz, CloseStartMenu call SaveScreenTilesToBuffer2 ; copy background from wTileMap to wTileMapBackup2 CheckEvent EVENT_GOT_POKEDEX ld a, [wCurrentMenuItem] jr nz, .displayMenuItem inc a ; adjust position to account for missing pokedex menu item .displayMenuItem cp 0 jp z, StartMenu_Pokedex cp 1 jp z, StartMenu_Pokemon cp 2 jp z, StartMenu_Item cp 3 jp z, StartMenu_TrainerInfo cp 4 jp z, StartMenu_SaveReset cp 5 jp z, StartMenu_Option ; EXIT falls through to here CloseStartMenu:: call Joypad ldh a, [hJoyPressed] bit 0, a ; was A button newly pressed? jr nz, CloseStartMenu call LoadTextBoxTilePatterns jp CloseTextDisplay