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Routines |
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Maroc's speed is increased/decreased in steps of 8 when keys are pressed. If the value is negative (value is > 128), Maroc is moving down. If the value is 0, Maroc is not moving vertically, though he may be moving horizontally.
A max speed of 32/-32 equates to Maroc moving 8 pixels per game cycle.
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| 59552 | CP 128 | If bit 7 is set (value is > 128), Maroc is moving down | ||||||||
| 59554 | JR NC,59560 | |||||||||
| 59556 | LD D,8 | Increase Maroc's up movement speed by 8 | ||||||||
| 59558 | JR 59562 | |||||||||
| 59560 | LD D,248 | Increase Maroc's down movement speed by 8 | ||||||||
| 59562 | LD A,C | Add the above to Maroc's speed accordingly | ||||||||
| 59563 | ADD A,D | |||||||||
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Speed can't be greater than 32 (or less than 224 if Maroc is moving down), so limit speed to this value if it's gone over.
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| 59564 | CP 128 | Is Maroc's moving up or down? | ||||||||
| 59566 | JR C,59576 | |||||||||
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Maroc is moving down - max speed check:
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| 59568 | CP 224 | Check if we've exceeded the maximum speed for this direction (< 224) | ||||||||
| 59570 | JR NC,59582 | |||||||||
| 59572 | LD A,224 | ...If so, set speed to maximum (224) | ||||||||
| 59574 | JR 59582 | |||||||||
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Maroc is moving up - max speed check:
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| 59576 | CP 32 | Check if we've exceeded the maximum speed for this direction (> 32) | ||||||||
| 59578 | JR C,59582 | |||||||||
| 59580 | LD A,32 | ...If so, set speed to maximum (32) | ||||||||
| 59582 | JR 59602 | Jump to the end of the next routine to store the increased speed | ||||||||
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