Routines
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9674: Store item index number into background index table.
Used by the routine at Bg_CalcAndDraw.
Input
Output
The background index table holds values to easily tell which column holds which special items.
Special items are things you can interact with.
The Offscreen pointer holds the current column on the offscreen (top row) for which to store for. The table column will be matched.
BgTable_Store 9674 LD A,(Draw_RoomObjectBmpIndex)
Store value of A into table.
BgTable_StoreA 9677 LD HL,(Ptr_Offscreen) Table is offset just before the offscreen.
967A LD DE,$0022
967D AND A
967E SBC HL,DE
9680 OR (HL)
9681 LD (HL),A
9682 JP Bg_BlitItemColumn
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