Routines
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45791: Read The Room Graphics Parameter
Used by the routine at InitialiseDisplayBuffer.
Asks the picture handler whether this object has anything to draw.
ReadRoomGraphicsParameter 45791 CALL ReportNextEmptyDisplayStep Call ReportNextEmptyDisplayStep to report that this display step found nothing.
ReadRoomGraphicsParameter_0 45794 CALL MatchSecondNoun Go to ReadRoomGraphicsParameter_RecordRoomGraphics if bit 7 of the display mode flag at 45433 is set or the handler returns 255.
45797 JR Z,ReadRoomGraphicsParameter_RecordRoomGraphics
45799 CALL ProcessObjectDisplayLogic Jump back to ReadRoomGraphicsParameter_0 while the object has nothing to display.
45802 JR Z,ReadRoomGraphicsParameter_0
45804 LD A,(41013) Save the room graphics parameter at 45445.
45807 LD (45445),A
45810 LD HL,45425 Point HL at the pass count at 45425.
45813 INC (HL) Count one more pass at 45425 and jump back to ReadRoomGraphicsParameter_0 if the saved flag at ObjectTablePointer+18 is zero.
45814 LD A,(45456)
45817 AND A
45818 JR Z,ReadRoomGraphicsParameter_0
ReadRoomGraphicsParameter_RecordRoomGraphics 45820 LD A,(45445) Record the room graphics parameter.
45823 LD (41013),A
45826 RET Return.
This entry point is used by the routine at InitialiseDisplayBuffer.
Leave the room-graphics handler at 46766 and return zero.
ReadRoomGraphicsParameter_LeaveRoomGraphics 45827 LD HL,46766 Leave the room-graphics handler at 46766.
45830 XOR A Clear A.
45831 RET Return.
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