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Routines |
| Prev: 30202 | Up: Map | Next: 30229 |
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Used by routine at 30229. Returns with the zero flag set if the pellet is about to hit a cup.
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| 30205 | LD L,1 | Point HL at byte 1 of the pellet's buffer | ||||||
| 30207 | LD E,(HL) | E=pellet's x-coordinate | ||||||
| 30208 | INC L | L=2 | ||||||
| 30209 | LD D,(HL) | D=pellet's y-coordinate | ||||||
| 30210 | INC E | Adjust the coordinates for comparison with those of the cup | ||||||
| 30211 | INC D | |||||||
| 30212 | LD A,D | A=pellet's (adjusted) y-coordinate | ||||||
| 30213 | CP 14 | All the cups have a y-coordinate of 14 | ||||||
| 30215 | RET NZ | Return with the zero flag reset if the pellet's not at the right height to hit a cup | ||||||
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This entry point is used by the routine at 29462 with E holding the x-coordinate of ERIC's hand as he jumps off the saddle of the bike.
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| 30216 | LD A,E | A=x-coordinate of the pellet or ERIC's hand | ||||||
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This entry point is used by the routine at 64077 with A holding the x-coordinate of the stream of water or sherry fired from the waterpistol.
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| 30217 | CP 25 | Has the leftmost cup on the shelf in the boys' skool been hit? | ||||||
| 30219 | RET Z | Return with the zero flag set if so | ||||||
| 30220 | CP 27 | Has the middle cup on the shelf in the boys' skool been hit? | ||||||
| 30222 | RET Z | Return with the zero flag set if so | ||||||
| 30223 | CP 30 | Has the rightmost cup on the shelf in the boys' skool been hit? | ||||||
| 30225 | RET Z | Return with the zero flag set if so | ||||||
| 30226 | CP 186 | Has the cup on the shelf in the girls' skool been hit? | ||||||
| 30228 | RET | Return with the zero flag set if so | ||||||
| Prev: 30202 | Up: Map | Next: 30229 |