Organize the engine/ directory, take 2

Renamed `game` to `games` and `menu` to `menus`.
Moved some functions from `engine/routines/` to their fitting subdirectories.

Made two new subdirectories:
* engine/rtc: Contains all RTC-related things. Menus, hardware, misc
functions.
* engine/items: Contains all item-related things. Pack, item effects,
other item handlers.

engine/menus/menu_2.asm

@@ -0,0 +1,253 @@
+PlaceMenuItemName: ; 0x24ab4
+	push de
+	ld a, [wMenuSelection]
+	ld [wNamedObjectIndexBuffer], a
+	call GetItemName
+	pop hl
+	call PlaceString
+	ret
+
+PlaceMenuItemQuantity: ; 0x24ac3
+	push de
+	ld a, [wMenuSelection]
+	ld [wCurItem], a
+	farcall _CheckTossableItem
+	ld a, [wItemAttributeParamBuffer]
+	pop hl
+	and a
+	jr nz, .done
+	ld de, $15
+	add hl, de
+	ld [hl], "×"
+	inc hl
+	ld de, wMenuSelectionQuantity
+	lb bc, 1, 2
+	call PrintNum
+
+.done
+	ret
+
+PlaceMoneyTopRight: ; 24ae8
+	ld hl, MenuHeader_0x24b15
+	call CopyMenuHeader
+	jr PlaceMoneyTextBox
+
+PlaceMoneyBottomLeft: ; 24af0
+	ld hl, MenuHeader_0x24b1d
+	call CopyMenuHeader
+	jr PlaceMoneyTextBox
+
+PlaceMoneyAtTopLeftOfTextbox: ; 24af8
+	ld hl, MenuHeader_0x24b15
+	lb de, 0, 11
+	call OffsetMenuHeader
+
+PlaceMoneyTextBox: ; 24b01
+	call MenuBox
+	call MenuBoxCoord2Tile
+	ld de, SCREEN_WIDTH + 1
+	add hl, de
+	ld de, wMoney
+	lb bc, PRINTNUM_MONEY | 3, 6
+	call PrintNum
+	ret
+
+MenuHeader_0x24b15: ; 0x24b15
+	db MENU_BACKUP_TILES ; flags
+	menu_coords 11, 0, SCREEN_WIDTH - 1, 2
+	dw NULL
+	db 1 ; default option
+
+MenuHeader_0x24b1d: ; 0x24b1d
+	db MENU_BACKUP_TILES ; flags
+	menu_coords 0, 11, 8, 13
+	dw NULL
+	db 1 ; default option
+
+DisplayCoinCaseBalance: ; 24b25
+	; Place a text box of size 1x7 at 11, 0.
+	hlcoord 11, 0
+	ld b, 1
+	ld c, 7
+	call TextBox
+	hlcoord 12, 0
+	ld de, CoinString
+	call PlaceString
+	hlcoord 17, 1
+	ld de, ShowMoney_TerminatorString
+	call PlaceString
+	ld de, wCoins
+	lb bc, 2, 4
+	hlcoord 13, 1
+	call PrintNum
+	ret
+
+DisplayMoneyAndCoinBalance: ; 24b4e
+	hlcoord 5, 0
+	ld b, 3
+	ld c, 13
+	call TextBox
+	hlcoord 6, 1
+	ld de, MoneyString
+	call PlaceString
+	hlcoord 12, 1
+	ld de, wMoney
+	lb bc, PRINTNUM_MONEY | 3, 6
+	call PrintNum
+	hlcoord 6, 3
+	ld de, CoinString
+	call PlaceString
+	hlcoord 15, 3
+	ld de, wCoins
+	lb bc, 2, 4
+	call PrintNum
+	ret
+
+MoneyString: ; 24b83
+	db "MONEY@"
+CoinString: ; 24b89
+	db "COIN@"
+ShowMoney_TerminatorString: ; 24b8e
+	db "@"
+
+Unreferenced_Function24b8f: ; 24b8f
+; related to safari?
+	ld hl, wOptions
+	ld a, [hl]
+	push af
+	set NO_TEXT_SCROLL, [hl]
+	hlcoord 0, 0
+	ld b, 3
+	ld c, 7
+	call TextBox
+	hlcoord 1, 1
+	ld de, wSafariTimeRemaining
+	lb bc, 2, 3
+	call PrintNum
+	hlcoord 4, 1
+	ld de, .slash_500
+	call PlaceString
+	hlcoord 1, 3
+	ld de, .booru_ko
+	call PlaceString
+	hlcoord 5, 3
+	ld de, wSafariBallsRemaining
+	lb bc, 1, 2
+	call PrintNum
+	pop af
+	ld [wOptions], a
+	ret
+
+.slash_500 ; 24bcf
+	db "／５００@"
+.booru_ko ; 24bd4
+	db "ボール　　　こ@"
+
+StartMenu_DrawBugContestStatusBox: ; 24bdc
+	hlcoord 0, 0
+	ld b, 5
+	ld c, 17
+	call TextBox
+	ret
+
+StartMenu_PrintBugContestStatus: ; 24be7
+	ld hl, wOptions
+	ld a, [hl]
+	push af
+	set NO_TEXT_SCROLL, [hl]
+	call StartMenu_DrawBugContestStatusBox
+	hlcoord 1, 5
+	ld de, .Balls_EN
+	call PlaceString
+	hlcoord 8, 5
+	ld de, wParkBallsRemaining
+	lb bc, PRINTNUM_RIGHTALIGN | 1, 2
+	call PrintNum
+	hlcoord 1, 1
+	ld de, .CAUGHT
+	call PlaceString
+	ld a, [wContestMon]
+	and a
+	ld de, .None
+	jr z, .no_contest_mon
+	ld [wd265], a
+	call GetPokemonName
+
+.no_contest_mon
+	hlcoord 8, 1
+	call PlaceString
+	ld a, [wContestMon]
+	and a
+	jr z, .skip_level
+	hlcoord 1, 3
+	ld de, .LEVEL
+	call PlaceString
+	ld a, [wContestMonLevel]
+	ld h, b
+	ld l, c
+	inc hl
+	ld c, 3
+	call Print8BitNumRightAlign
+
+.skip_level
+	pop af
+	ld [wOptions], a
+	ret
+
+.Balls_JP: ; 24c43
+	db "ボール　　　こ@"
+.CAUGHT: ; 24c4b
+	db "CAUGHT@"
+.Balls_EN: ; 24c52
+	db "BALLS:@"
+.None: ; 24c59
+	db "None@"
+.LEVEL: ; 24c5e
+	db "LEVEL@"
+
+FindApricornsInBag: ; 24c64
+; Checks the bag for Apricorns.
+	ld hl, wBuffer1
+	xor a
+	ld [hli], a
+	dec a
+	ld bc, 10
+	call ByteFill
+
+	ld hl, ApricornBalls
+.loop
+	ld a, [hl]
+	cp -1
+	jr z, .done
+	push hl
+	ld [wCurItem], a
+	ld hl, wNumItems
+	call CheckItem
+	pop hl
+	jr nc, .nope
+	ld a, [hl]
+	call .addtobuffer
+.nope
+	inc hl
+	inc hl
+	jr .loop
+
+.done
+	ld a, [wBuffer1]
+	and a
+	ret nz
+	scf
+	ret
+
+.addtobuffer ; 24c94
+	push hl
+	ld hl, wBuffer1
+	inc [hl]
+	ld e, [hl]
+	ld d, 0
+	add hl, de
+	ld [hl], a
+	pop hl
+	ret
+
+INCLUDE "data/items/apricorn_balls.asm"