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Routines |
| Prev: 7BB6 | Up: Map | Next: 7C3F |
| 7BE1 | LD A,($7FE9) | Collect the object inventory flags from 7FE9 | ||
| 7BE4 | BIT 6,A | Has Sam got the hook? | ||
| 7BE6 | RET Z | Return if not | ||
| 7BE7 | LD A,($E604) | A=Sam's z-coordinate | ||
| 7BEA | LD HL,($E601) | Collect Sam's x- and y-coordinates in L and H | ||
| 7BED | RRCA | Is Sam's z-coordinate 1 (indoors)? | ||
| 7BEE | JR NC,$7C0B | Jump if not | ||
| 7BF0 | LD A,L | A=x (Sam's x-coordinate) | ||
| 7BF1 | CP $DE | Is Sam in no. 17 or no. 15 (x>=222)? | ||
| 7BF3 | RET NC | Return if so | ||
| 7BF4 | CP $CF | Is Sam in no. 19 (207<=x<222)? | ||
| 7BF6 | JR NC,$7C07 | Jump if so | ||
| 7BF8 | CP $7A | Is Sam in the police station, no. 27, or the apartments next to no. 19 (122<=x<207)? | ||
| 7BFA | JR NC,$7C03 | Jump if so | ||
| 7BFC | CP $67 | Is Sam in no. 31 (103<=x<122)? | ||
| 7BFE | JR NC,$7C07 | Jump if so | ||
| 7C00 | CP $19 | Is Sam in no. 74 or the hotel (25<=x<103)? | ||
| 7C02 | RET NC | Return if so | ||
| 7C03 | LD A,$07 | 7 is the y-coordinate of the roof of the police station, no. 27, and the apartment building next to no. 19 | ||
| 7C05 | JR $7C09 | |||
| 7C07 | LD A,$0D | 13 is the y-coordinate of the roofs of no. 19 and no. 31 | ||
| 7C09 | CP H | Is Sam on the roof of a building? | ||
| 7C0A | RET C | Return if not | ||
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Sam is in a location that is amenable to hook-throwing.
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| 7C0B | INC H | H=1+Sam's y-coordinate | ||
| 7C0C | LD A,($E600) | A=Sam's animatory state | ||
| 7C0F | AND $80 | Keep only the direction bit (bit 7) | ||
| 7C11 | JR Z,$7C14 | Jump if Sam is facing left | ||
| 7C13 | INC L | L=1+Sam's x-coordinate | ||
| 7C14 | ADD A,$79 | A=0x79/0xF9 (hook) | ||
| 7C16 | EX DE,HL | DE=hook's initial coordinates | ||
| 7C17 | LD HL,$E513 | Point HL at byte 0x13 of character buffer 0xE5 | ||
| 7C1A | INC (HL) | Is the current owner of character buffer 0xE5 (the hook or a banknote) under the control of an uninterruptible subcommand routine? | ||
| 7C1B | DEC (HL) | |||
| 7C1C | RET NZ | Return if so (the hook must currently be in flight, which is unlikely) | ||
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The hook will be thrown. Prepare it for launch now.
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| 7C1D | INC L | Initialise the distance remaining for the hook to fly (stored in byte 0x14 of the hook's buffer) | ||
| 7C1E | LD (HL),$14 | |||
| 7C20 | DEC L | Place the address of the uninterruptible subcommand routine at 7BB6 into bytes 0x12 and 0x13 of the hook's buffer | ||
| 7C21 | LD (HL),$7B | |||
| 7C23 | DEC L | |||
| 7C24 | LD (HL),$B6 | |||
| 7C26 | LD L,$04 | Set the hook's z-coordinate to 4 | ||
| 7C28 | LD (HL),L | |||
| 7C29 | DEC L | Set bit 7 of byte 0x03 of the hook's buffer, thus making the hook fly as fast as possible | ||
| 7C2A | LD (HL),$80 | |||
| 7C2C | DEC L | Initialise the hook's x- and y-coordinates | ||
| 7C2D | LD (HL),D | |||
| 7C2E | DEC L | |||
| 7C2F | LD (HL),E | |||
| 7C30 | DEC L | Initialise the hook's animatory state | ||
| 7C31 | LD (HL),A | |||
| 7C32 | CALL $E9D5 | Update the hook's animatory state and location and update the SRB | ||
| 7C35 | LD HL,$7FE9 | The object inventory flags are stored at 7FE9 | ||
| 7C38 | RES 6,(HL) | Clear bit 6, thus removing the hook from Sam's possession | ||
| 7C3A | LD H,$E6 | 0xE6=Sam | ||
| 7C3C | JP $F304 | Raise Sam's arm and make a sound effect | ||
| Prev: 7BB6 | Up: Map | Next: 7C3F |