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Routines |
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Used by the routine at NextStep.
Used when the ship is in the same column as a step of a segment. When the horizontal speed is not negative it sets bit 2 of the contact flags at ContactFlags and carries on at NextStep_Flags. Otherwise the next step is drawn.
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| FlagRightContact | 52936 | LD A,(52411) | The horizontal scroll speed. | |
| 52939 | BIT 7,A | Jump to FinishStep_Next if bit 7 of A is set. | ||
| 52941 | JP NZ,FinishStep_Next | |||
| 52944 | LD A,(23601) | The contact flags. | ||
| 52947 | OR %00000100 | Set the bits of A that are set in 4. | ||
| 52949 | LD (23601),A | Update the contact flags. | ||
| 52952 | JP NextStep_Flags | Jump to NextStep_Flags. | ||
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