Split print_move_description and mon_menu

1 files changed, 290 insertions, 0 deletions

diff --git a/engine/pokemon/mon_submenu.asm b/engine/pokemon/mon_submenu.asm
new file mode 100644
index 000000000..926c35f5d
--- /dev/null
+++ b/engine/pokemon/mon_submenu.asm
@@ -0,0 +1,290 @@
+INCLUDE "data/mon_menu.asm"
+
+MonSubmenu:
+	xor a
+	ld [hBGMapMode], a
+	call GetMonSubmenuItems
+	farcall FreezeMonIcons
+	ld hl, .MenuHeader
+	call LoadMenuHeader
+	call .GetTopCoord
+	call PopulateMonMenu
+
+	ld a, 1
+	ld [hBGMapMode], a
+	call MonMenuLoop
+	ld [wMenuSelection], a
+
+	call ExitMenu
+	ret
+
+.MenuHeader:
+	db MENU_BACKUP_TILES ; flags
+	menu_coords 6, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1
+	dw 0
+	db 1 ; default option
+
+.GetTopCoord:
+; TopCoord = 1 + BottomCoord - 2 * (NumSubmenuItems + 1)
+	ld a, [wBuffer1]
+	inc a
+	add a
+	ld b, a
+	ld a, [wMenuBorderBottomCoord]
+	sub b
+	inc a
+	ld [wMenuBorderTopCoord], a
+	call MenuBox
+	ret
+
+MonMenuLoop:
+.loop
+	ld a, MENU_UNUSED_3 | MENU_BACKUP_TILES_2 ; flags
+	ld [wMenuDataFlags], a
+	ld a, [wBuffer1] ; items
+	ld [wMenuDataItems], a
+	call InitVerticalMenuCursor
+	ld hl, w2DMenuFlags1
+	set 6, [hl]
+	call StaticMenuJoypad
+	ld de, SFX_READ_TEXT_2
+	call PlaySFX
+	ld a, [hJoyPressed]
+	bit A_BUTTON_F, a
+	jr nz, .select
+	bit B_BUTTON_F, a
+	jr nz, .cancel
+	jr .loop
+
+.cancel
+	ld a, MONMENUITEM_CANCEL
+	ret
+
+.select
+	ld a, [wMenuCursorY]
+	dec a
+	ld c, a
+	ld b, 0
+	ld hl, wBuffer2
+	add hl, bc
+	ld a, [hl]
+	ret
+
+PopulateMonMenu:
+	call MenuBoxCoord2Tile
+	ld bc, 2 * SCREEN_WIDTH + 2
+	add hl, bc
+	ld de, wBuffer2
+.loop
+	ld a, [de]
+	inc de
+	cp -1
+	ret z
+	push de
+	push hl
+	call GetMonMenuString
+	pop hl
+	call PlaceString
+	ld bc, 2 * SCREEN_WIDTH
+	add hl, bc
+	pop de
+	jr .loop
+
+GetMonMenuString:
+	ld hl, MonMenuOptions + 1
+	ld de, 3
+	call IsInArray
+	dec hl
+	ld a, [hli]
+	cp MONMENU_MENUOPTION
+	jr z, .NotMove
+	inc hl
+	ld a, [hl]
+	ld [wNamedObjectIndexBuffer], a
+	call GetMoveName
+	ret
+
+.NotMove:
+	inc hl
+	ld a, [hl]
+	dec a
+	ld hl, MonMenuOptionStrings
+	call GetNthString
+	ld d, h
+	ld e, l
+	ret
+
+GetMonSubmenuItems:
+	call ResetMonSubmenu
+	ld a, [wCurPartySpecies]
+	cp EGG
+	jr z, .egg
+	ld a, [wLinkMode]
+	and a
+	jr nz, .skip_moves
+	ld a, MON_MOVES
+	call GetPartyParamLocation
+	ld d, h
+	ld e, l
+	ld c, NUM_MOVES
+.loop
+	push bc
+	push de
+	ld a, [de]
+	and a
+	jr z, .next
+	push hl
+	call IsFieldMove
+	pop hl
+	jr nc, .next
+	call AddMonMenuItem
+
+.next
+	pop de
+	inc de
+	pop bc
+	dec c
+	jr nz, .loop
+
+.skip_moves
+	ld a, MONMENUITEM_STATS
+	call AddMonMenuItem
+	ld a, MONMENUITEM_SWITCH
+	call AddMonMenuItem
+	ld a, MONMENUITEM_MOVE
+	call AddMonMenuItem
+	ld a, [wLinkMode]
+	and a
+	jr nz, .skip2
+	push hl
+	ld a, MON_ITEM
+	call GetPartyParamLocation
+	ld d, [hl]
+	farcall ItemIsMail
+	pop hl
+	ld a, MONMENUITEM_MAIL
+	jr c, .ok
+	ld a, MONMENUITEM_ITEM
+
+.ok
+	call AddMonMenuItem
+
+.skip2
+	ld a, [wBuffer1]
+	cp NUM_MONMENU_ITEMS
+	jr z, .ok2
+	ld a, MONMENUITEM_CANCEL
+	call AddMonMenuItem
+
+.ok2
+	call TerminateMonSubmenu
+	ret
+
+.egg
+	ld a, MONMENUITEM_STATS
+	call AddMonMenuItem
+	ld a, MONMENUITEM_SWITCH
+	call AddMonMenuItem
+	ld a, MONMENUITEM_CANCEL
+	call AddMonMenuItem
+	call TerminateMonSubmenu
+	ret
+
+IsFieldMove:
+	ld b, a
+	ld hl, MonMenuOptions
+.next
+	ld a, [hli]
+	cp -1
+	jr z, .nope
+	cp MONMENU_MENUOPTION
+	jr z, .nope
+	ld d, [hl]
+	inc hl
+	ld a, [hli]
+	cp b
+	jr nz, .next
+	ld a, d
+	scf
+
+.nope
+	ret
+
+ResetMonSubmenu:
+	xor a
+	ld [wBuffer1], a
+	ld hl, wBuffer2
+	ld bc, NUM_MONMENU_ITEMS + 1
+	call ByteFill
+	ret
+
+TerminateMonSubmenu:
+	ld a, [wBuffer1]
+	ld e, a
+	ld d, 0
+	ld hl, wBuffer2
+	add hl, de
+	ld [hl], -1
+	ret
+
+AddMonMenuItem:
+	push hl
+	push de
+	push af
+	ld a, [wBuffer1]
+	ld e, a
+	inc a
+	ld [wBuffer1], a
+	ld d, 0
+	ld hl, wBuffer2
+	add hl, de
+	pop af
+	ld [hl], a
+	pop de
+	pop hl
+	ret
+
+BattleMonMenu:
+	ld hl, MenuHeader_0x24ed4
+	call CopyMenuHeader
+	xor a
+	ld [hBGMapMode], a
+	call MenuBox
+	call UpdateSprites
+	call PlaceVerticalMenuItems
+	call WaitBGMap
+	call CopyMenuData
+	ld a, [wMenuDataFlags]
+	bit 7, a
+	jr z, .set_carry
+	call InitVerticalMenuCursor
+	ld hl, w2DMenuFlags1
+	set 6, [hl]
+	call StaticMenuJoypad
+	ld de, SFX_READ_TEXT_2
+	call PlaySFX
+	ld a, [hJoyPressed]
+	bit B_BUTTON_F, a
+	jr z, .clear_carry
+	ret z
+
+.set_carry
+	scf
+	ret
+
+.clear_carry
+	and a
+	ret
+
+MenuHeader_0x24ed4:
+	db 0 ; flags
+	menu_coords 11, 11, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1
+	dw MenuData_0x24edc
+	db 1 ; default option
+
+MenuData_0x24edc:
+	db STATICMENU_CURSOR | STATICMENU_NO_TOP_SPACING ; flags
+	db 3 ; items
+	db "SWITCH@"
+	db "STATS@"
+	db "CANCEL@"