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Routines |
| Prev: B628 | Up: Map | Next: B706 |
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Used by the routines at UpdateShot and UpdateLeftShot.
Tests whether a shot has hit the ground or an object, using NudgeObject with a box that is 18 wide and 0C high (10 high if entered at TestShotHitsGround_Wide). A sound is made if the shot is not a special one.
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| TestShotHitsGround | B6EC | LD B,$0C | B=0C. | |||||||||
| B6EE | JR TestShotHitsGround_Check | Jump to TestShotHitsGround_Check. | ||||||||||
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This entry point is used by the routine at UpdateSpecialShot.
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| TestShotHitsGround_Wide | B6F0 | LD B,$10 | B=10. | |||||||||
| TestShotHitsGround_Check | B6F2 | LD C,$18 | C=18. | |||||||||
| B6F4 | CALL NudgeObject | Call NudgeObject. | ||||||||||
| B6F7 | LD A,($5C1C) | The hit flag. | ||||||||||
| B6FA | AND A | Return if A is zero. | ||||||||||
| B6FB | RET Z | |||||||||||
| B6FC | BIT 7,(IX+$15) | Call PlayShortCrashSound if bit 7 of offset 15 of IX is clear. | ||||||||||
| B700 | CALL Z,PlayShortCrashSound | |||||||||||
| B703 | OR %00000001 | Set the bits of A that are set in 01. | ||||||||||
| B705 | RET | Return. | ||||||||||
| Prev: B628 | Up: Map | Next: B706 |