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Routines |
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The skeleton will step forward once, and then step back, if Berk is close enough and the yellow skull is in a room to the right. If the yellow skull is in the skeleton's room, or a room to the left of this, then the skeleton will step forward repeatedly while Berk is close enough and will only back off when Berk moves out of range. The range is nine, so if the distance between Berk's right edge and the skeleton's left edge is less than nine then the skeleton will advance. A distance of nine or more will see the skeleton retreat. Note that the calculated range is based upon the skeleton's state data at 45404, in which the x-coordinates of his left and right edges do not match his apparent position or width graphically.
Used by the routine at 48096.
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| 41550 | LD IY,(34240) | Load IY with address of current level's complex state data for Berk | ||||||||||
| 41554 | LD A,(IY+0) | If Berk's current room is 3 (skeleton's room)... | ||||||||||
| 41557 | CP 3 | ... | ||||||||||
| 41559 | JR Z,41580 | ...then jump to 41580 | ||||||||||
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Berk is not in skeleton's room, or yellow skull is in a room right of the skeleton's room
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| 41561 | LD A,(IX+5) | If x-coordinate of skeleton's left edge is at least 128... | ||||||||||
| 41564 | CP 128 | ... | ||||||||||
| 41566 | JR NC,41574 | ...then skip ahead to 41574 | ||||||||||
| 41568 | LD HL,41318 | Point HL at script data for skeleton stepping back (right)... | ||||||||||
| 41571 | JP 48098 | ...and execute | ||||||||||
| 41574 | LD HL,41232 | Point HL at script data for skeleton idling... | ||||||||||
| 41577 | JP 48098 | ...and execute | ||||||||||
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Berk is in skeleton's room
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| 41580 | BIT 0,(IX+9) | If skeleton's must-process-current-script-data flag is reset... | ||||||||||
| 41584 | JR Z,41597 | ...then skip ahead to 41597 | ||||||||||
| 41586 | RES 0,(IX+9) | Reset skeleton's must-process-current-script-data flag | ||||||||||
| 41590 | LD A,(45430) | If yellow skull is in a room with index of 4 or more (room above pit, or pit)... | ||||||||||
| 41593 | CP 4 | ... | ||||||||||
| 41595 | JR NC,41561 | ...then jump back to 41561 (move skeleton back) | ||||||||||
| 41597 | LD A,(IX+5) | If x-coordinate of skeleton's left edge... | ||||||||||
| 41600 | SUB 9 | ...is at least nine characters to the right of Berk's right edge... | ||||||||||
| 41602 | CP (IY+7) | ... | ||||||||||
| 41605 | JR NC,41561 | ...then jump back to 41561 (move skeleton back) | ||||||||||
| 41607 | SET 0,(IX+9) | Set skeleton's must-process-current-script-data flag | ||||||||||
| 41611 | LD HL,41280 | Point HL at script data for skeleton stepping forward (left)... | ||||||||||
| 41614 | JP 48098 | ...and execute | ||||||||||
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