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Routines |
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Used by the routine at CalculateObjectPointerOffset.
Points the object list at this room and remembers the character record in the display pointer.
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Adjust object table for sum.
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| PointObjectListRoom | 48578 | CALL AdjustObjectTableForSum | Call AdjustObjectTableForSum to point the object list at this room. | |
| 48581 | LD (47635),IX | Store this object pointer at 47635 and at 47635+2. | ||
| 48585 | LD (47637),IX | |||
| 48589 | LD DE,(47639) | Read the display pointer and point HL at the character pairs at 39245. | ||
| 48593 | LD HL,39245 | |||
| 48596 | LD B,1 | Count 1. | ||
| PointObjectListRoom_Loop | 48598 | LD A,(HL) | Read the next object-list byte. | |
| 48599 | INC HL | Advance through the object list. | ||
| 48600 | OR (HL) | Merge the following object-list byte. | ||
| 48601 | DEC HL | Step back one byte. | ||
| 48602 | RET Z | Return when this object-list pair is empty. | ||
| 48603 | LD A,E | Jump ahead to PointObjectListRoom_Next if the low byte differs from this object pair. | ||
| 48604 | CP (HL) | |||
| 48605 | JR NZ,PointObjectListRoom_Next | |||
| 48607 | INC HL | Jump ahead to PointObjectListRoom_CountRecordResult if the high byte matches this object pair. | ||
| 48608 | LD A,D | |||
| 48609 | CP (HL) | |||
| 48610 | DEC HL | |||
| 48611 | JR Z,PointObjectListRoom_CountRecordResult | |||
| PointObjectListRoom_Next | 48613 | INC HL | Step to the next object pair and go back to PointObjectListRoom_Loop. | |
| 48614 | INC HL | |||
| 48615 | INC B | |||
| 48616 | JR PointObjectListRoom_Loop | |||
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Remember how many objects were listed and read the next one.
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| PointObjectListRoom_CountRecordResult | 48618 | LD A,B | Record the display pointer. | |
| 48619 | LD (47642),A | |||
| 48622 | LD A,2 | |||
| 48624 | LD (41016),A | Store it in the object attribute flag. | ||
| 48627 | CALL ReadCharacterRecordWord | Call ReadCharacterRecordWord to read the next display object and return when the list has ended. | ||
| 48630 | CP 255 | |||
| 48632 | RET Z | |||
| 48633 | LD (47641),A | Call ReadCharacterRecordWord to read the character record from the display link. | ||
| 48636 | CALL ReadCharacterRecordWord | |||
| 48639 | CP 255 | Jump to UseObjectDisplayLink_ConditionHoldsCaller when another display object follows. | ||
| 48641 | JR NZ,UseObjectDisplayLink_ConditionHoldsCaller | |||
| 48643 | LD A,(47641) | Call UseObjectDisplayLink to copy the object's picture link. | ||
| 48646 | CALL UseObjectDisplayLink | |||
| 48649 | CALL ReadCharacterRecordValue | Call ReadCharacterRecordValue to read the next saved object and return when that list has ended. | ||
| 48652 | CP 255 | |||
| 48654 | RET Z | |||
| 48655 | LD (47643),A | Call ReadCharacterRecordValue to read the character record from the saved value. | ||
| 48658 | CALL ReadCharacterRecordValue | |||
| 48661 | CP 255 | Jump to UseObjectDisplayLink_ConditionHoldsCaller when another saved object follows. | ||
| 48663 | JR NZ,UseObjectDisplayLink_ConditionHoldsCaller | |||
| 48665 | LD A,(47643) | Call UseObjectDisplayLink to copy the object's picture link. | ||
| 48668 | CALL UseObjectDisplayLink | |||
| 48671 | OR %00000001 | Reset the zero flag. | ||
| 48673 | RET | Return. | ||
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