pokecrystal/engine/buy_sell_toss.asm

239 lines
3.5 KiB
NASM
Executable File
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SelectQuantityToToss: ; 24fbf
ld hl, TossItem_MenuDataHeader
call LoadMenuDataHeader
call Toss_Sell_Loop
ret
; 24fc9
SelectQuantityToBuy: ; 24fc9
farcall GetItemPrice
RooftopSale_SelectQuantityToBuy: ; 24fcf
ld a, d
ld [Buffer1], a
ld a, e
ld [Buffer2], a
ld hl, BuyItem_MenuDataHeader
call LoadMenuDataHeader
call Toss_Sell_Loop
ret
; 24fe1
SelectQuantityToSell: ; 24fe1
farcall GetItemPrice
ld a, d
ld [Buffer1], a
ld a, e
ld [Buffer2], a
ld hl, SellItem_MenuDataHeader
call LoadMenuDataHeader
call Toss_Sell_Loop
ret
; 24ff9
Toss_Sell_Loop: ; 24ff9
ld a, 1
ld [wItemQuantityChangeBuffer], a
.loop
call BuySellToss_UpdateQuantityDisplay ; update display
call BuySellToss_InterpretJoypad ; joy action
jr nc, .loop
cp -1
jr nz, .nope ; pressed B
scf
ret
.nope
and a
ret
; 2500e
BuySellToss_InterpretJoypad: ; 2500e
call JoyTextDelay_ForcehJoyDown ; get joypad
bit B_BUTTON_F, c
jr nz, .b
bit A_BUTTON_F, c
jr nz, .a
bit D_DOWN_F, c
jr nz, .down
bit D_UP_F, c
jr nz, .up
bit D_LEFT_F, c
jr nz, .left
bit D_RIGHT_F, c
jr nz, .right
and a
ret
.b
ld a, -1
scf
ret
.a
ld a, 0
scf
ret
.down
ld hl, wItemQuantityChangeBuffer
dec [hl]
jr nz, .finish_down
ld a, [wItemQuantityBuffer]
ld [hl], a
.finish_down
and a
ret
.up
ld hl, wItemQuantityChangeBuffer
inc [hl]
ld a, [wItemQuantityBuffer]
cp [hl]
jr nc, .finish_up
ld [hl], 1
.finish_up
and a
ret
.left
ld a, [wItemQuantityChangeBuffer]
sub 10
jr c, .load_1
jr z, .load_1
jr .finish_left
.load_1
ld a, 1
.finish_left
ld [wItemQuantityChangeBuffer], a
and a
ret
.right
ld a, [wItemQuantityChangeBuffer]
add 10
ld b, a
ld a, [wItemQuantityBuffer]
cp b
jr nc, .finish_right
ld b, a
.finish_right
ld a, b
ld [wItemQuantityChangeBuffer], a
and a
ret
; 25072
BuySellToss_UpdateQuantityDisplay: ; 25072
call MenuBox
call MenuBoxCoord2Tile
ld de, SCREEN_WIDTH + 1
add hl, de
ld [hl], "×"
inc hl
ld de, wItemQuantityChangeBuffer
lb bc, PRINTNUM_LEADINGZEROS | 1, 2
call PrintNum
ld a, [wMenuData2Pointer]
ld e, a
ld a, [wMenuData2Pointer + 1]
ld d, a
ld a, [wMenuDataBank]
call FarCall_de
ret
; 25097
ret_25097: ; 25097
ret
; 25098
DisplayPurchasePrice: ; 25098
call BuySell_MultiplyPrice
call BuySell_DisplaySubtotal
ret
; 2509f
DisplaySellingPrice: ; 2509f
call BuySell_MultiplyPrice
call Sell_HalvePrice
call BuySell_DisplaySubtotal
ret
; 250a9
BuySell_MultiplyPrice: ; 250a9
xor a
ld [hMultiplicand + 0], a
ld a, [Buffer1]
ld [hMultiplicand + 1], a
ld a, [Buffer2]
ld [hMultiplicand + 2], a
ld a, [wItemQuantityChangeBuffer]
ld [hMultiplier], a
push hl
call Multiply
pop hl
ret
; 250c1
Sell_HalvePrice: ; 250c1
push hl
ld hl, hProduct + 1
ld a, [hl]
srl a
ld [hli], a
ld a, [hl]
rra
ld [hli], a
ld a, [hl]
rra
ld [hl], a
pop hl
ret
; 250d1
BuySell_DisplaySubtotal: ; 250d1
push hl
ld hl, hMoneyTemp
ld a, [hProduct + 1]
ld [hli], a
ld a, [hProduct + 2]
ld [hli], a
ld a, [hProduct + 3]
ld [hl], a
pop hl
inc hl
ld de, hMoneyTemp
lb bc, PRINTNUM_MONEY | 3, 6
call PrintNum
call WaitBGMap
ret
; 250ed
TossItem_MenuDataHeader: ; 0x250ed
db $40 ; flags
db 09, 15 ; start coords
db 11, 19 ; end coords
dw ret_25097
db 0 ; default option
; 0x250f5
BuyItem_MenuDataHeader: ; 0x250f5
db $40 ; flags
db 15, 07 ; start coords
db 17, 19 ; end coords
dw DisplayPurchasePrice
db -1 ; default option
; 0x250fd
SellItem_MenuDataHeader: ; 0x250fd
db $40 ; flags
db 15, 07 ; start coords
db 17, 19 ; end coords
dw DisplaySellingPrice
db 0 ; default option
; 0x25105