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Routines |
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Used by the routine at 53714.
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Helps keep track and limit the number of graphic items on-screen during the tunnel sections. Jump from 53719 if tunnel item is no longer visible on-screen.
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| 53787 | LD A,0 | |||
| 53789 | LD (60227),A | Set type of graphic to draw to 0 | ||
| 53792 | LD A,(60230) | |||
| 53795 | CP 3 | Check if tunnel item type < 3 | ||
| 53797 | JR NC,53809 | |||
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If so, it's a left/right boundary graphic that's now gone off-screen
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| 53799 | LD A,(60286) | Byte holding the number of boundary wall graphics currently on screen. This number is checked & limited (to 20) at 55011. | ||
| 53802 | DEC A | Decrement this counter, as there's now one less... | ||
| 53803 | LD (60286),A | ...and re-store. | ||
| 53806 | JP 53885 | |||
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Creature has gone off-screen
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| 53809 | LD A,(60573) | Counter for number of creatures currently on-screen (max 3) | ||
| 53812 | DEC A | Decrement number... | ||
| 53813 | LD (60573),A | ...and re-store | ||
| 53816 | JP 53885 | |||
| Prev: 53759 | Up: Map | Next: 53819 |