Routines
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C32D: Check room item data sets to see if any doors need setting up
Used by the routine at C349.
Input
HL Address pointer to room data sets containing the room's scenery items (7C00)
Check through data sets at 7C00 to see if any doors (item type number = 2) need setting up
Get one of the 16-byte room item data sets (at 7C00) and copy it across to a working data buffer at EB43:
C32D LD DE,$EB43 Working buffer address pointer
C330 LD B,$10 16 bytes to copy over
C332 LD ($EABE),HL Store address pointer to item data set (at 7C00)
C335 LD A,(HL) Copy byte across
C336 LD (DE),A
C337 INC DE
C338 INC HL
C339 DJNZ $C335 Repeat for 16 bytes
Check if the data set is door data
C33B LD A,($EB43) First byte of the data bank indicates the type of graphic
C33E CP $FF
C340 JP Z,$C42A If it's 255 it means no more data to deal with
C343 CP $02 Is this data for a door (item type = 2)?
C345 JR Z,$C349
C347 JR $C32D If not, check the next set
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