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Routines |
A | Character's animatory state |
DE | Character's coordinates |
H | Character number (152-169, 172) |
27632 | BIT 7,A | Set the zero flag if the character is facing left |
27634 | LD A,D | A=character's y-coordinate |
27635 | JR NZ,27694 | Jump if the character is facing right |
27637 | CP 155 | 155=top floor |
27639 | LD A,E | A=character's x-coordinate |
27640 | JR NZ,27666 | Jump if the character's on the middle floor |
27642 | CP 58 | Is the character to the right of the Map Room wall? |
27644 | JR NC,27659 | Jump if so |
27646 | CP 48 | 48=x-coordinate of the leftmost chair in the Reading Room |
27648 | RET C | Return if the character is to the left of this |
27649 | NOP | |
27650 | CP 56 | 56=x-coordinate of the rightmost chair in the Reading Room |
27652 | JR Z,27655 | Jump if the character is beside the rightmost chair in the room |
27654 | RET NC | Return if the character is to the right of this chair |
27655 | AND A | |
27656 | BIT 0,A | Return with the zero flag set if the character is standing beside a chair |
27658 | RET |
27659 | CP 64 | 64=x-coordinate of the leftmost chair in the Map Room |
27661 | RET C | Return if the character is to the left of this |
27662 | CP 72 | 72=x-coordinate of the rightmost chair in the Map Room |
27664 | JR 27652 |
27666 | CP 39 | Is the character to the right of the Exam Room wall? |
27668 | JR NC,27678 | Jump if so |
27670 | CP 29 | 29=x-coordinate of the leftmost chair in the White Room |
27672 | RET C | Return if the character is to the left of this |
27673 | INC A | 37=x-coordinate of the rightmost chair in the White Room |
27674 | CP 38 | |
27676 | JR 27652 |
27678 | CP 43 | 43=x-coordinate of the leftmost chair in the Exam Room |
27680 | RET C | Return if the character is to the left of this |
27681 | CP 60 | 60=x-coordinate of the left end of the first set of chairs in the Exam Room |
27683 | JR C,27689 | Jump if the character is to the left of this |
27685 | CP 68 | 68=x-coordinate of the rightmost chair in the Exam Room |
27687 | JR 27652 |
27689 | INC A | 53=x-coordinate of the right end of the second set of chairs in the Exam Room |
27690 | CP 54 | |
27692 | JR 27652 |
27694 | CP 155 | 155=top floor |
27696 | LD A,E | A=character's x-coordinate |
27697 | JR NZ,27714 | Jump if the character is on the middle floor |
27699 | CP 58 | 58=x-coordinate of the wall between the Reading and Map Rooms |
27701 | JR NC,27710 | Jump if the character is to the right of this |
27703 | CP 55 | 55=x-coordinate of the spot between the two chairs at the right in the Reading Room; if this were 'CP 56' instead, kids would be able to find the rightmost seat in the room |
27705 | CCF | Clear the carry flag if the character is to the left of the rightmost chair in the room (i.e. he's still on his way there) |
27706 | RET NZ | Return unless the character is beside the rightmost chair in the room |
27707 | AND A | Reset the zero flag, and set the carry flag to indicate that the character should turn round |
27708 | CCF | |
27709 | RET | |
27710 | CP 72 | 72=x-coordinate of the rightmost seat in the Map Room |
27712 | JR 27705 | |
27714 | CP 39 | 39=x-coordinate of the wall between the White and Exam Rooms |
27716 | JR NC,27722 | Jump if the character is to the right of this |
27718 | CP 37 | 37=x-coordinate of the rightmost chair in the White Room |
27720 | JR 27705 | |
27722 | CP 68 | 68=x-coordinate of the rightmost chair in the Exam Room |
27724 | JR 27705 |