shithub: pokered

ref: 98f09b6d26b1f83bdf1779cfe63a73b8a4265aef
dir: /engine/subtract_paid_money.asm/

View raw version 
; subtracts the amount the player paid from their money
; sets carry flag if there is enough money and unsets carry flag if not
SubtractAmountPaidFromMoney_:
	ld de, wPlayerMoney
	ld hl, hMoney ; total price of items
	ld c, 3 ; length of money in bytes
	call StringCmp
	ret c
	ld de, wPlayerMoney + 2
	ld hl, hMoney + 2 ; total price of items
	ld c, 3 ; length of money in bytes
	predef SubBCDPredef ; subtract total price from money
	ld a, MONEY_BOX
	ld [wTextBoxID], a
	call DisplayTextBoxID ; redraw money text box
	and a
	ret