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Routines |
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| 28576 | CALL 28240 | Check whether ERIC is on a staircase | ||
| 28579 | LD L,0 | Point HL at byte 0 of ERIC's buffer | ||
| 28581 | JR C,28650 | Jump if ERIC's on a staircase | ||
| 28583 | BIT 7,(HL) | Check the 'direction' bit of ERIC's animatory state | ||
| 28585 | LD A,D | A=ERIC's y-coordinate | ||
| 28586 | JR Z,28625 | Jump if ERIC is facing left | ||
| 28588 | CP 3 | Is ERIC on the top floor? | ||
| 28590 | JR Z,28616 | Jump if so | ||
| 28592 | CP 10 | Is ERIC on the middle floor? | ||
| 28594 | JR Z,28611 | Jump if so | ||
| 28596 | CP 14 | Is ERIC on the assembly hall stage? | ||
| 28598 | JP NZ,28449 | Move ERIC one space to the right if not | ||
| 28601 | LD A,E | A=ERIC's x-coordinate | ||
| 28602 | CP 80 | This is the x-coordinate of the top of the stairs leading from the stage to the bottom floor | ||
| 28604 | JR NZ,28598 | Jump if ERIC is not here | ||
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This entry point is used by the routines at 28315, 28436 and 28460.
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| 28606 | LD B,D | B=ERIC's post-midstride y-coordinate (down a stair) | ||
| 28607 | INC B | |||
| 28608 | JP 28516 | Move ERIC one space right or left too | ||
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ERIC is on the middle floor, facing right.
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| 28611 | LD A,E | A=ERIC's x-coordinate | ||
| 28612 | CP 15 | This is the x-coordinate of the top of the stairs leading down to the bottom floor at the far left of the boy's skool | ||
| 28614 | JR 28604 | Move ERIC down a stair if he's here | ||
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ERIC is on the top floor, facing right.
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| 28616 | LD A,E | A=ERIC's x-coordinate | ||
| 28617 | CP 84 | This is the x-coordinate of the top of the stairs just outside the head's study | ||
| 28619 | JR Z,28606 | Move ERIC down a stair if he's here | ||
| 28621 | CP 179 | This is the x-coordinate of the top of the stairs leading down to the middle floor in the girls' skool | ||
| 28623 | JR 28604 | Move ERIC down a stair if he's here | ||
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ERIC is facing left.
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| 28625 | CP 10 | Is ERIC on the middle floor? | ||
| 28627 | JR Z,28641 | Jump if so | ||
| 28629 | CP 3 | Is ERIC on the top floor? | ||
| 28631 | JP NZ,28473 | Move ERIC one space left if not | ||
| 28634 | LD A,E | A=ERIC's x-coordinate | ||
| 28635 | CP 26 | This is the x-coordinate of the top of the stairs leading down from the Revision Library | ||
| 28637 | JR NZ,28631 | Move ERIC one space left if he's not here | ||
| 28639 | JR 28606 | Otherwise move him down a stair | ||
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ERIC is on the middle floor, facing left.
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| 28641 | LD A,E | A=ERIC's x-coordinate | ||
| 28642 | CP 85 | This is the x-coordinate of the top of the stairs leading down to the stage | ||
| 28644 | JR Z,28606 | Move ERIC down a stair if he's here | ||
| 28646 | CP 183 | This is the x-coordinate of the top of the stairs leading down to the bottom floor in the girls' skool | ||
| 28648 | JR 28637 | Move ERIC down a stair if he's here | ||
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ERIC is on a staircase.
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| 28650 | XOR (HL) | Reset the carry flag if ERIC is facing the wrong way to descend the stairs | ||
| 28651 | RLA | |||
| 28652 | JP NC,28216 | Turn ERIC round if he's facing the wrong way | ||
| 28655 | JR 28606 | Otherwise move him down a stair | ||
| Prev: 28484 | Up: Map | Next: 28657 |