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Routines |
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Used by the routine at FireShot.
Part of FireShot. Sets a random speed and, unless the object is moving fast, reverses its vertical direction.
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| ReverseVerticalSpeed | 8970 | CALL SetRandomSpeed | Give the object a random speed. | |||||||
| 8973 | LD A,(IX+$12) | Fetch the second state byte of the shot. | ||||||||
| 8976 | CP $67 | Jump to FireShot_Sound if it is 67 or higher. | ||||||||
| 8978 | JP NC,FireShot_Sound | |||||||||
| 897B | LD A,(IY+$09) | Fetch the vertical speed of the object. | ||||||||
| 897E | NEG | Negate it. | ||||||||
| 8980 | LD (IY+$09),A | Store it. | ||||||||
| 8983 | JP FireShot_Sound | Jump to FireShot_Sound. | ||||||||
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