ref: 208ea072375937c7258b4841a23185e82fb563b1
dir: /home/window.asm/
HandleMenuInput:: xor a ld [wPartyMenuAnimMonEnabled], a HandleMenuInput_:: ldh a, [hDownArrowBlinkCount1] push af ldh a, [hDownArrowBlinkCount2] push af ; save existing values on stack xor a ldh [hDownArrowBlinkCount1], a ; blinking down arrow timing value 1 ld a, 6 ldh [hDownArrowBlinkCount2], a ; blinking down arrow timing value 2 .loop1 xor a ld [wAnimCounter], a ; counter for pokemon shaking animation call PlaceMenuCursor call Delay3 .loop2 push hl ld a, [wPartyMenuAnimMonEnabled] and a ; is it a pokemon selection menu? jr z, .getJoypadState farcall AnimatePartyMon ; shake mini sprite of selected pokemon .getJoypadState pop hl call JoypadLowSensitivity ldh a, [hJoy5] and a ; was a key pressed? jr nz, .keyPressed push hl hlcoord 18, 11 ; coordinates of blinking down arrow in some menus call HandleDownArrowBlinkTiming ; blink down arrow (if any) pop hl ld a, [wMenuJoypadPollCount] dec a jr z, .giveUpWaiting jr .loop2 .giveUpWaiting ; if a key wasn't pressed within the specified number of checks pop af ldh [hDownArrowBlinkCount2], a pop af ldh [hDownArrowBlinkCount1], a ; restore previous values xor a ld [wMenuWrappingEnabled], a ; disable menu wrapping ret .keyPressed xor a ld [wCheckFor180DegreeTurn], a ldh a, [hJoy5] ld b, a bit BIT_D_UP, a jr z, .checkIfDownPressed .upPressed ld a, [wCurrentMenuItem] ; selected menu item and a ; already at the top of the menu? jr z, .alreadyAtTop .notAtTop dec a ld [wCurrentMenuItem], a ; move selected menu item up one space jr .checkOtherKeys .alreadyAtTop ld a, [wMenuWrappingEnabled] and a ; is wrapping around enabled? jr z, .noWrappingAround ld a, [wMaxMenuItem] ld [wCurrentMenuItem], a ; wrap to the bottom of the menu jr .checkOtherKeys .checkIfDownPressed bit BIT_D_DOWN, a jr z, .checkOtherKeys .downPressed ld a, [wCurrentMenuItem] inc a ld c, a ld a, [wMaxMenuItem] cp c jr nc, .notAtBottom .alreadyAtBottom ld a, [wMenuWrappingEnabled] and a ; is wrapping around enabled? jr z, .noWrappingAround ld c, $00 ; wrap from bottom to top .notAtBottom ld a, c ld [wCurrentMenuItem], a .checkOtherKeys ld a, [wMenuWatchedKeys] and b ; does the menu care about any of the pressed keys? jp z, .loop1 .checkIfAButtonOrBButtonPressed ldh a, [hJoy5] and A_BUTTON | B_BUTTON jr z, .skipPlayingSound .AButtonOrBButtonPressed push hl ld hl, wFlags_0xcd60 bit 5, [hl] pop hl jr nz, .skipPlayingSound ld a, SFX_PRESS_AB call PlaySound .skipPlayingSound pop af ldh [hDownArrowBlinkCount2], a pop af ldh [hDownArrowBlinkCount1], a ; restore previous values xor a ld [wMenuWrappingEnabled], a ; disable menu wrapping ldh a, [hJoy5] ret .noWrappingAround ld a, [wMenuWatchMovingOutOfBounds] and a ; should we return if the user tried to go past the top or bottom? jr z, .checkOtherKeys jr .checkIfAButtonOrBButtonPressed PlaceMenuCursor:: ld a, [wTopMenuItemY] and a ; is the y coordinate 0? jr z, .adjustForXCoord hlcoord 0, 0 ld bc, SCREEN_WIDTH .topMenuItemLoop add hl, bc dec a jr nz, .topMenuItemLoop .adjustForXCoord ld a, [wTopMenuItemX] ld b, 0 ld c, a add hl, bc push hl ld a, [wLastMenuItem] and a ; was the previous menu id 0? jr z, .checkForArrow1 push af ldh a, [hUILayoutFlags] bit 1, a ; is the menu double spaced? jr z, .doubleSpaced1 ld bc, 20 jr .getOldMenuItemScreenPosition .doubleSpaced1 ld bc, 40 .getOldMenuItemScreenPosition pop af .oldMenuItemLoop add hl, bc dec a jr nz, .oldMenuItemLoop .checkForArrow1 ld a, [hl] cp "▶" ; was an arrow next to the previously selected menu item? jr nz, .skipClearingArrow .clearArrow ld a, [wTileBehindCursor] ld [hl], a .skipClearingArrow pop hl ld a, [wCurrentMenuItem] and a jr z, .checkForArrow2 push af ldh a, [hUILayoutFlags] bit 1, a ; is the menu double spaced? jr z, .doubleSpaced2 ld bc, 20 jr .getCurrentMenuItemScreenPosition .doubleSpaced2 ld bc, 40 .getCurrentMenuItemScreenPosition pop af .currentMenuItemLoop add hl, bc dec a jr nz, .currentMenuItemLoop .checkForArrow2 ld a, [hl] cp "▶" ; has the right arrow already been placed? jr z, .skipSavingTile ; if so, don't lose the saved tile ld [wTileBehindCursor], a ; save tile before overwriting with right arrow .skipSavingTile ld a, "▶" ; place right arrow ld [hl], a ld a, l ld [wMenuCursorLocation], a ld a, h ld [wMenuCursorLocation + 1], a ld a, [wCurrentMenuItem] ld [wLastMenuItem], a ret ; This is used to mark a menu cursor other than the one currently being ; manipulated. In the case of submenus, this is used to show the location of ; the menu cursor in the parent menu. In the case of swapping items in list, ; this is used to mark the item that was first chosen to be swapped. PlaceUnfilledArrowMenuCursor:: ld b, a ld a, [wMenuCursorLocation] ld l, a ld a, [wMenuCursorLocation + 1] ld h, a ld [hl], "▷" ld a, b ret ; Replaces the menu cursor with a blank space. EraseMenuCursor:: ld a, [wMenuCursorLocation] ld l, a ld a, [wMenuCursorLocation + 1] ld h, a ld [hl], " " ret ; This toggles a blinking down arrow at hl on and off after a delay has passed. ; This is often called even when no blinking is occurring. ; The reason is that most functions that call this initialize hDownArrowBlinkCount1 to 0. ; The effect is that if the tile at hl is initialized with a down arrow, ; this function will toggle that down arrow on and off, but if the tile isn't ; initialized with a down arrow, this function does nothing. ; That allows this to be called without worrying about if a down arrow should ; be blinking. HandleDownArrowBlinkTiming:: ld a, [hl] ld b, a ld a, "▼" cp b jr nz, .downArrowOff .downArrowOn ldh a, [hDownArrowBlinkCount1] dec a ldh [hDownArrowBlinkCount1], a ret nz ldh a, [hDownArrowBlinkCount2] dec a ldh [hDownArrowBlinkCount2], a ret nz ld a, " " ld [hl], a ld a, $ff ldh [hDownArrowBlinkCount1], a ld a, $06 ldh [hDownArrowBlinkCount2], a ret .downArrowOff ldh a, [hDownArrowBlinkCount1] and a ret z dec a ldh [hDownArrowBlinkCount1], a ret nz dec a ldh [hDownArrowBlinkCount1], a ldh a, [hDownArrowBlinkCount2] dec a ldh [hDownArrowBlinkCount2], a ret nz ld a, $06 ldh [hDownArrowBlinkCount2], a ld a, "▼" ld [hl], a ret ; The following code either enables or disables the automatic drawing of ; text boxes by DisplayTextID. Both functions cause DisplayTextID to wait ; for a button press after displaying text (unless [wEnteringCableClub] is set). EnableAutoTextBoxDrawing:: xor a jr AutoTextBoxDrawingCommon DisableAutoTextBoxDrawing:: ld a, TRUE AutoTextBoxDrawingCommon:: ld [wAutoTextBoxDrawingControl], a xor a ld [wDoNotWaitForButtonPressAfterDisplayingText], a ; make DisplayTextID wait for button press ret PrintText:: ; Print text hl at (1, 14). push hl ld a, MESSAGE_BOX ld [wTextBoxID], a call DisplayTextBoxID call UpdateSprites call Delay3 pop hl PrintText_NoCreatingTextBox:: bccoord 1, 14 jp TextCommandProcessor