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Change: Store station blocked/wires/pylons flags in map. (#11337)

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This stores three flags in unused map bits, and avoids having to look up
station graphics and custom station specs to determine blocked/wires/pylons
status.

This potentially affects rail pathfinding performance.

Savegame version is not bumped, as the flags can just be updated every
time.
This commit is contained in:
Peter Nelson
2023-09-30 12:30:25 +01:00
committed by GitHub
parent fd79d34ba9
commit b5dc9328f2
8 changed files with 124 additions and 51 deletions
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docs/landscape_grid.html
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@@ -188,7 +188,7 @@ the array so you can quickly see what is used and what is not.
<td class="bits" rowspan=2><span class="used" title="Random bits">XXXX</span> <span class="free">OOOO</span></td>
<td class="bits" rowspan=2><span class="used" title="Custom station specifications ID">XXXX XXXX</span></td>
<td class="bits"><span class="used" title="Graphics index">XXXX XXXX</span></td>
<td class="bits" rowspan=2><span class="free">OO</span><span class="used" title="Station type">XXX</span> <span class="used" title="Reserved track">X</span><span class="free">OO</span></td>
<td class="bits" rowspan=2><span class="used" title="May have pylons">X</span><span class="used" title="May have wires">X</span><span class="used" title="Station type">XXX</span> <span class="used" title="Reserved track">X</span><span class="free">O</span><span class="used" title="Tile is blocked">X</span></td>
<td class="bits" rowspan=2><span class="used" title="Animation frame">XXXX XXXX</span></td>
<td class="bits" rowspan=2><span class="free">OOOO OOOO OO</span><span class="used" title="Railway type">XX XXXX</span></td>
</tr>