Routines
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49580: Create Ship Piece
Used by the routine at CheckItemDelivery.
Makes an object of type 12 in a slot, with the state in B and a position that is held in four bytes: the map column, the map zone, the horizontal position and the vertical position.
Input
B State of the object
HL Address of the position
IX Address of the slot
CreatePiece 49580 CALL FreeObjectSlot Call FreeObjectSlot.
49583 LD (IX+0),12 Store 12 at offset 0 of IX.
49587 LD (IX+19),B Write B to offset 19 of IX.
49590 LD (IX+13),255 Store 255 at offset 13 of IX.
49594 LD A,(HL) Read HL.
49595 LD (IX+1),A Write A to offset 1 of IX.
49598 INC HL Advance HL.
49599 LD A,(HL) Read HL.
49600 LD (IX+4),A Write A to offset 4 of IX.
49603 INC HL Advance HL.
49604 LD A,(HL) Read HL.
49605 LD (IX+2),A Write A to offset 2 of IX.
49608 INC HL Advance HL.
49609 LD A,(HL) Read HL.
49610 LD (IX+5),A Write A to offset 5 of IX.
49613 RET Return.
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