Contact Sam Cruise: Routine at 63423

63423: Make a character open a door that has been knocked on

Used by the command lists at 64846, 65059, 65112 and 65143. Opens the door that the character is standing behind, and then rewinds the command list such that the character returns to the spot where he was walking up and down before going to answer the door.

Input
H	Character number (215-229)

63423

PUSH HL

Save the character number briefly

63424

CALL 62252

Open the door

63427

POP HL

Restore the character number to H

63428

LD L,22

Byte 22 of the character's buffer holds the offset of the point reached in the command list

63430

LD A,(HL)

Subtract 14 from this offset; this has the effect of sending the character back to the spot where he was walking up and down before answering the door

63431

SUB 14

63433

LD (HL),A

63434

JP 62080

Terminate this primary command