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Routines |
| Prev: 6E99 | Up: Map | Next: 6F14 |
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Used by the routines at 6F14 and 6F2C. Impedes ERIC's progress if he's confronted by an immovable object, or opens the Science Lab storeroom door (if ERIC has the key and is trying to go right at the relevant location). Also sends ERIC down the first step of the staircase leading down to the assembly hall stage, or begins his descent off the assembly hall stage (if ERIC is trying to go left at the relevant location).
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| 6E9B | LD A,E | A=x-coordinate of the spot in front of ERIC | ||||||||
| 6E9C | CP $BF | Is ERIC facing the far right wall of the girls' skool? | ||||||||
| 6E9E | RET NC | Return if so (ERIC can't walk through walls) | ||||||||
| 6E9F | LD HL,$7FF4 | 7FF4 holds the doors flags | ||||||||
| 6EA2 | LD A,D | A=ERIC's y-coordinate | ||||||||
| 6EA3 | CP $03 | Is ERIC on the top floor? | ||||||||
| 6EA5 | JR NZ,$6ECB | Jump if not | ||||||||
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ERIC is on the top floor.
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| 6EA7 | LD A,E | A=x-coordinate of the spot in front of ERIC | ||||||||
| 6EA8 | CP $9F | Is ERIC facing the far wall of the top-floor room in the girls' skool? | ||||||||
| 6EAA | RET Z | Return if so | ||||||||
| 6EAB | CP $5C | Is ERIC facing the window on the top floor of the boys' skool? | ||||||||
| 6EAD | RET Z | Return if so | ||||||||
| 6EAE | CP $48 | Is ERIC facing the head's left study door? | ||||||||
| 6EB0 | JR NZ,$6EB5 | Jump if not | ||||||||
| 6EB2 | BIT 0,(HL) | Is the head's left study door closed? | ||||||||
| 6EB4 | RET Z | Return if so | ||||||||
| 6EB5 | CP $53 | Is ERIC facing the head's right study door? | ||||||||
| 6EB7 | JR NZ,$6EBC | Jump if not | ||||||||
| 6EB9 | BIT 1,(HL) | Is the head's right study door closed? | ||||||||
| 6EBB | RET Z | Return if so | ||||||||
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ERIC's path is not blocked, so let him move forward.
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| 6EBC | LD A,($D200) | A=ERIC's animatory state | ||||||||
| 6EBF | LD C,E | Copy the coordinates of the spot in front of ERIC (his post-midstride coordinates) from DE to BC | ||||||||
| 6EC0 | LD B,D | |||||||||
| 6EC1 | BIT 7,A | Is ERIC facing right? | ||||||||
| 6EC3 | JR NZ,$6EC7 | Jump if so | ||||||||
| 6EC5 | INC E | |||||||||
| 6EC6 | INC E | |||||||||
| 6EC7 | DEC E | Set E to ERIC's current x-coordinate (which will also be his midstride x-coordinate) | ||||||||
| 6EC8 | JP $6DD2 | Put ERIC midstride | ||||||||
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ERIC's not on the top floor. Is he on the middle floor?
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| 6ECB | CP $0A | Is ERIC on the middle floor? | ||||||||
| 6ECD | JR NZ,$6EED | Jump if not | ||||||||
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ERIC is on the middle floor.
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| 6ECF | LD A,E | A=x-coordinate of the spot in front of ERIC | ||||||||
| 6ED0 | CP $9F | Is ERIC facing the far wall of the middle-floor classroom in the girls' skool? | ||||||||
| 6ED2 | RET Z | Return if so | ||||||||
| 6ED3 | CP $5E | Is ERIC facing the window on the middle floor of the boys' skool? | ||||||||
| 6ED5 | RET Z | Return if so | ||||||||
| 6ED6 | CP $3F | Is ERIC facing the far wall of the Science Lab storeroom? | ||||||||
| 6ED8 | RET Z | Return if so | ||||||||
| 6ED9 | CP $54 | Is ERIC about to descend the stairs from the middle floor to the stage? | ||||||||
| 6EDB | JR NZ,$6EE1 | Jump if not | ||||||||
| 6EDD | INC E | E=85 (ERIC's current x-coordinate) | ||||||||
| 6EDE | JP $6FBE | Start moving ERIC down a stair | ||||||||
| 6EE1 | CP $36 | Is ERIC facing the Science Lab storeroom door? | ||||||||
| 6EE3 | JR NZ,$6EBC | Jump if not | ||||||||
| 6EE5 | BIT 2,(HL) | Is the Science Lab storeroom door closed? | ||||||||
| 6EE7 | JP Z,$73F1 | Jump if so (and open it if ERIC has the key) | ||||||||
| 6EEA | RET Z | Return if the door/gate is (still) closed | ||||||||
| 6EEB | JR $6EBC | Otherwise move ERIC forward | ||||||||
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ERIC's not on the top floor or the middle floor. Is he on the bottom floor?
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| 6EED | CP $11 | Is ERIC on the bottom floor? | ||||||||
| 6EEF | LD A,E | A=x-coordinate of the spot in front of ERIC | ||||||||
| 6EF0 | JR NZ,$6F05 | Jump if not | ||||||||
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ERIC is on the bottom floor.
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| 6EF2 | CALL $7166 | Let ERIC go no further if ALBERT's in his way | ||||||||
| 6EF5 | LD A,E | A=x-coordinate of the spot in front of ERIC | ||||||||
| 6EF6 | CP $5E | Is ERIC facing the boys' skool door? | ||||||||
| 6EF8 | JR NZ,$6EFD | Jump if not | ||||||||
| 6EFA | BIT 3,(HL) | Is the boys' skool door closed? | ||||||||
| 6EFC | RET Z | Return if so | ||||||||
| 6EFD | CP $85 | Is ERIC facing the skool gate? | ||||||||
| 6EFF | JR NZ,$6EBC | Jump if not | ||||||||
| 6F01 | BIT 4,(HL) | Is the skool gate closed? | ||||||||
| 6F03 | JR $6EEA | Jump back and return if so, or move ERIC forward if not | ||||||||
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ERIC is on the assembly hall stage.
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| 6F05 | CP $52 | Is ERIC about to ascend the stairs from the stage to the middle floor? | ||||||||
| 6F07 | JR NZ,$6F0D | Jump if not | ||||||||
| 6F09 | DEC E | E=81 (ERIC's current x-coordinate) | ||||||||
| 6F0A | JP $6F62 | Start moving ERIC up a stair | ||||||||
| 6F0D | CP $4C | Is ERIC about to jump off the stage? | ||||||||
| 6F0F | JP Z,$6E91 | Jump if so to deal with ERIC's descent to the floor | ||||||||
| 6F12 | JR $6EBC | Otherwise move ERIC forward | ||||||||
| Prev: 6E99 | Up: Map | Next: 6F14 |