diff options
Diffstat (limited to 'home/inventory.asm')
| -rw-r--r-- | home/inventory.asm | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/home/inventory.asm b/home/inventory.asm new file mode 100644 index 00000000..ebaa4047 --- /dev/null +++ b/home/inventory.asm @@ -0,0 +1,55 @@ +; subtracts the amount the player paid from their money +; OUTPUT: carry = 0(success) or 1(fail because there is not enough money) +SubtractAmountPaidFromMoney:: + farjp SubtractAmountPaidFromMoney_ + +; adds the amount the player sold to their money +AddAmountSoldToMoney:: + ld de, wPlayerMoney + 2 + ld hl, hMoney + 2 ; total price of items + ld c, 3 ; length of money in bytes + predef AddBCDPredef ; add total price to money + ld a, MONEY_BOX + ld [wTextBoxID], a + call DisplayTextBoxID ; redraw money text box + ld a, SFX_PURCHASE + call PlaySoundWaitForCurrent + jp WaitForSoundToFinish + +; function to remove an item (in varying quantities) from the player's bag or PC box +; INPUT: +; HL = address of inventory (either wNumBagItems or wNumBoxItems) +; [wWhichPokemon] = index (within the inventory) of the item to remove +; [wItemQuantity] = quantity to remove +RemoveItemFromInventory:: + ldh a, [hLoadedROMBank] + push af + ld a, BANK(RemoveItemFromInventory_) + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + call RemoveItemFromInventory_ + pop af + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + ret + +; function to add an item (in varying quantities) to the player's bag or PC box +; INPUT: +; HL = address of inventory (either wNumBagItems or wNumBoxItems) +; [wcf91] = item ID +; [wItemQuantity] = item quantity +; sets carry flag if successful, unsets carry flag if unsuccessful +AddItemToInventory:: + push bc + ldh a, [hLoadedROMBank] + push af + ld a, BANK(AddItemToInventory_) + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + call AddItemToInventory_ + pop bc + ld a, b + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + pop bc + ret |