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40 lines
816 B
40 lines
816 B
DEF ITEM_ATTRF_NONE EQU 0
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DEF ITEM_ATTRF_USABLE EQU (1 << 0)
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DEF ITEM_ATTRF_WEAPON EQU (1 << 1)
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DEF ITEM_ATTRF_ARMOR EQU (1 << 2)
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DEF NEXT_ITEM_ID SET 1
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; Declare a new item
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; \1 Display name
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; \2 Attributes
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MACRO Item
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ASSERT STRLEN("\1") < 16
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; Define item ID symbol
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DEF ID_NAME EQUS "\1_ID"
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DEF {ID_NAME} EQU NEXT_ITEM_ID
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EXPORT {ID_NAME}
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REDEF NEXT_ITEM_ID SET NEXT_ITEM_ID + 1
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DB \2
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; Display name
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DB "\1"
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REPT 16 - STRLEN("\1")
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DB 0
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ENDR
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ENDM
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SECTION "Item Sprite Data", ROM0
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COIN_LEFT:: INCBIN "png/sprite/item/coin_left.2bpp"
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COIN_RIGHT:: INCBIN "png/sprite/item/coin_right.2bpp"
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SECTION "Item Data", ROM0
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; NOTE: Macro invocation MUST be indented in order to be expanded correctly
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Items::
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Item COIN, ITEM_ATTRF_NONE
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SECTION "Item Code", ROM0
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