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Routines |
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28002 | LD H,210 | 210=ERIC |
This entry point is used by the routines at 30555 (with H=206: BOY WANDER) and 30706 (with H=207: ANGELFACE):
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28004 | CALL 27886 | Collect in C and B the lower and upper x-coordinates of the 20-character-space-wide "visibility region" around the boy |
28007 | EXX | |
28008 | LD H,200 | 200=MR WACKER |
28010 | LD B,6 | There are 6 adult characters |
28012 | EXX | |
28013 | CALL 27954 | Find the first adult character inside the visibility region (if any) |
28016 | JR C,28025 | Jump if we found one who can see the boy |
28018 | AND A | Are there any adult characters left to check? |
28019 | RET Z | Return with the carry flag reset if not |
28020 | CALL 27980 | We must have found an adult character who is facing the wrong way to see the boy; skip this character and find the next one inside the visibility region |
28023 | JR NC,28018 | Jump if there are no others inside the visibility region, or we found another one facing the wrong way |
We found an adult character inside the visibility region and facing the right way to see the boy.
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28025 | EXX | |
28026 | LD A,H | A=character number of adult who saw the boy |
28027 | EXX | |
28028 | RET | Return with the carry flag set |
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