Routines
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52913: Maroc has offered an object of insufficient value to a warlock
Used by the routine at 52849.
If an item is not of interest to a warlock (checked in the routine at 52857):
  • the warlock fires a bolt/missile at Maroc (almost guaranteed to hit, as the player will be controlling the servant, so Maroc will be stationary!)
  • the offered item is teleported to another room, namely [current room number] + 3)
item of insufficient value offered to warlock
52913 LD C,D Retrieve the object number (from table at 29551) that Maroc has offered
52914 LD B,0 The upcoming CALL performs one of two functions, depending on whether the B or C register contains a non-zero value.
By setting the B register to zero, it tells the routine that we want to get the item's data using the object number (in the C register) rather than the room number (B register).
52916 LD HL,(56051) Address pointer to the start of the room object data sets at 29551
52919 LD A,0
52921 LD (60292),A Set the data set counter to zero for the next CALL
52924 CALL 56908 This routine finds an object's data set (in table at 29551), and copies its data into the object data buffer at 60293.
Teleport the rejected item to current-room-number-plus-three
52927 LD A,(60087) Current room number
52930 LD C,A
52931 ADD A,3 Add 3 to it
52933 LD HL,(60290) Get address pointer to the start of the item's data set
52936 LD (HL),A The first byte in the set is the item's room number, so stick the updated value (room number plus 3) in here
52937 INC HL
52938 LD (HL),26 Sets the object horizontal position (in half-pixel steps) in the room to a standard 26. This ensures that the object will be within the new room boundaries regardless of source & destination room sizes.
The item's final vertical position would've been where the warlock was positioned on the room wall, so the object's vertical position will probably also be on the wall.
52940 LD A,0
52942 LD (60334),A Set the object-number-held-by-warlock byte to 0, as the offered item has just been teleported to a different room
52945 JP 53080 ...Warlock isn't impressed with the item offering...! Jump to the 'set up missile' routine...
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