Routines
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37600: Set Item Attributes
Used by the routines at HandlerFoodItem, HandlerPickupItem, HandlerTombstone and HandlerMushroom.
Sets the attributes of the cells that an item covers with SetEntityAttributes_Moved. The item is 16 lines high (at SetItemAttributes), or the number of lines in A (at SetItemAttributes_Lines), and it is two bytes wide or three if it is not on a multiple of eight pixels across.
Input
IX The item entity
SetItemAttributes 37600 LD A,16 A=16 (the height of the item in lines).
This entry point is used by the routine at HandlerPlayerAppearing.
SetItemAttributes_Lines 37602 LD (24081),A Update the sprite height in SpriteHeight.
37605 LD A,(IX+3) Fetch the X position of the item.
37608 AND %00000111 Keep only bits 0-2.
37610 LD A,2 A=2 (the width of the item in bytes).
37612 JR Z,SetItemAttributes_Width Jump to SetItemAttributes_Width if the X position is a multiple of eight.
37614 INC A A=3 (the item is one byte wider, as it straddles another cell).
SetItemAttributes_Width 37615 LD (24080),A Update the sprite width in SpriteWidth.
37618 JP SetEntityAttributes_Moved Jump to SetEntityAttributes_Moved to set the attributes of the item.
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