Through the Trap Door: Routine at 51765

51765: Update state of Drutt

If Drutt is being carried or falling, then he should be prevented from doing anything. This is accomplished by constantly resetting his current script data position to be 51520. This does nothing except redraw Drutt.

Used by the routine at 51739.

Input
IX	Address of complex state data (current level) for Drutt

Output
HL	Address of next script instruction to execute

51765

LD A,(IX+10)

If both Drutt's being carried and can-fall flags are reset...

51768

AND 96

...

51770

JP Z,48096

...then jump to 48096 (advance HL to next script instruction and execute)

51773

LD HL,51520

Point HL at script data for Drutt facing out of screen (falling)...

51776

JP 48098

...and execute