Routines
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42964: Find Orchid Position
Used by the routines at BringActorCloser and LoadOrchid.
Finds the entry in TableOrchidPositions for the layout of the room an actor is in.
Input
IX Actor record
Output
HL Address of the X and Y position of the orchid
HandlerOrchidPosition 42964 PUSH BC Stash BC on the stack.
Fetch the layout of the room.
42965 LD L,(IX+1) Fetch the room of the actor.
42968 LD H,0 Clear H.
42970 LD BC,24678 Point BC at the layout table at Layout.
42973 ADD HL,BC Add the layout table address to get the address of the layout number for the room.
Fetch the orchid position for the layout.
42974 LD L,(HL) Fetch the layout number of the room.
42975 LD H,0 Clear H.
42977 ADD HL,HL Double the layout number, as there are two bytes of position for each layout.
42978 LD BC,54950 Point BC at the table of orchid positions at TableOrchidPositions.
42981 ADD HL,BC Add the table address to get the address of the position for the layout.
42982 POP BC Restore BC from the stack.
42983 RET Return.
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