Files
alttpr-baserom/retro.asm
sporchia 6a6b22c3d5 Zarby's arrow code, will need to be made configurable
probably just based on cost per arrow, or a flag and word for each
cost, silvers/wooden
2018-02-13 08:37:46 -05:00

28 lines
757 B
NASM

CheckEnoughRupeeArrows:
{
LDA $0B99 : BNE .minigame_arrow
PHX ;save X value which is ancilla of the arrow
REP #$30 ;Set 16bit mode
LDA $7EF340 : AND #$00FF : TAX ;check what bow we have
LDA $7EF360 : CMP.l .rupees_cost, X : BCC .not_enough_rupees ;Load Rupees count
SBC.l .rupees_cost, X : STA $7EF360 ;decrease rupee by 5
SEP #$30
PLX
BRA .ignore_minigame
.minigame_arrow
DEC $0B99
.ignore_minigame
LDA #$01 ;return 01 if we have enough rupee so it doesnt despawn the arrow
RTL
.not_enough_rupees
SEP #$30
PLX
LDA #$00 ;Return 00 if we don't have enough rupee so it despawn the arrow
RTL
.rupees_cost ;Normal, Normal, Silver, Silver
dw #$0005, #$0005, #$000A, #$000A
}