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(svn r6131) -Codechange : Complete all missing _ttdpatch_flags entries
-Feature : both unifiedmaglevmode are now set.
Maglev and monorail are not allowed to run on each other tracks and will not be.
Setting those flags will allow grfsets as the Norvegian one to be loaded
-Codechange : link the TTDPatch's irregularstations with OTTD's nonuniform_stations
-Codechange : Reformat the whole array (thanks Rubidium, it sure looks better now)
-Feature : both unifiedmaglevmode are now set.
Maglev and monorail are not allowed to run on each other tracks and will not be.
Setting those flags will allow grfsets as the Norvegian one to be loaded
-Codechange : link the TTDPatch's irregularstations with OTTD's nonuniform_stations
-Codechange : Reformat the whole array (thanks Rubidium, it sure looks better now)
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<meta name="Description" content="Structure of OpenTTD (OTTD) landscape arrays #2">
<title>OpenTTD Landscape Internals - #2</title>
<style type="text/css">
span.abuse { font-family: "Courier New", Courier, mono; background-color: rgb(255, 58, 31); }
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<h3 style="font-weight: bold;">Landscape</h3>
<span style="font-weight: bold;"></span>Five attributes hold the information about a tile.
This can be seen in the <a href="landscape.html">Landscape</a> document. This page tries to give an overview of used and free bits of
the array so you can quickly see what is used and what is not.
<ul>
<li><span style="font-weight: bold;"><span class="free">O</span></span> - bit is free</li>
<li><span style="font-weight: bold;"><span class="used">X</span></span> - bit is used</li>
<li><span style="font-weight: bold;"><span class="abuse"> </span></span> - bit of attribute is abused for different purposes</li>
</ul>
<p>
<ul>
<li><span style="font-weight: bold;">type_height</span> - 8 bits in size, stores tile height (lower 4 bits) and tile class (upper 4 bits)</li>
<li><span style="font-weight: bold;">m1</span> - 8 bits in size, used to identify the owner of that tile (eg piece of rail, bridge, etc.)</li>
<li><span style="font-weight: bold;">m2</span> - 16 bits in size, used to identify the index of the given tile (object) in the (object-)array</li>
<li><span style="font-weight: bold;">m3</span> - 8 bits in size, is used for general storage</li>
<li><span style="font-weight: bold;">m4</span> - 8 bits in size, is used for general storage</li>
<li><span style="font-weight: bold;">m5</span> - 8 bits in size, is used for general storage</li>
</ul>
<table align=center border="1" cellpadding="2" cellspacing="2">
<tbody>
<tr>
<th colspan=2>class</th>
<th>m1 (8)</th>
<th>m2 (16)</th>
<th>m3 (8)</th>
<th>m4 (8)</th>
<th>type_height (8)</th>
<th>m5 (8)</th>
</tr>
<tr>
<td colspan=2 class="caption">bits</td>
<td class="bits">7654 3210</td>
<td class="bits">FEDC BA98 7654 3210</td>
<td class="bits">7654 3210</td>
<td class="bits">7654 3210</td>
<td class="bits">7654 3210</td>
<td class="bits">7654 3210</td>
</tr>
<tr>
<td>0</td>
<td class="caption">ground</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits">XXXX XX<span class="free">OO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td rowspan=3>1</td>
<td class="caption">rail</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span> XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO O</span>XXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td class="caption">depot</td>
<td class="bits">-inherit-</td>
<td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits">-inherit-</td>
<td class="bits">XX<span class="free">OO O</span>XXX</td>
</tr>
<tr>
<td class="caption">waypoint</td>
<td class="bits">-inherit-</td>
<td class="bits">XXXX XXXX XXXX XXXX</td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits">-inherit-</td>
<td class="bits">XX<span class="free">OO O</span>XXX</td>
</tr>
<tr>
<td rowspan=3>2</td>
<td class="caption">road</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td class="caption">level crossing</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">-inherit-</td>
<td class="bits">XXXX XX<span class="free">OO</span></td>
</tr>
<tr>
<td class="caption">road depot</td>
<td class="bits">-inherit-</td>
<td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits">X<span class="free">OOO OOOO</span></td>
<td class="bits">-inherit-</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td>3</td>
<td class="caption">town</td>
<td class="bits"><span class="abuse">XXXX XXXX</span></td>
<td class="bits">XXXX XXXX XXXX XXXX</td>
<td class="bits">XX<span class="free">OO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">X<span class="free">O</span>XX XXXX</td>
</tr>
<tr>
<td>4</td>
<td class="caption">trees</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span> XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XX<span class="free">OO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XX<span class="free">OO O</span>XXX</td>
</tr>
<tr>
<td>5</td>
<td class="caption">station</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td>6</td>
<td class="caption">water</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td rowspan=6>8</td>
<td class="caption">industry</td>
<td class="bits"><span class="abuse">X</span><span class="free">OO</span><span class="abuse">X XXXX</span></td>
<td class="bits">XXXX XXXX XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td>bubble/sugar/toffee</td>
<td class="bits"><span class="abuse">X</span><span class="free">OOO OOOO</span></td>
<td class="bits">-inherit-</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
</tr>
<tr>
<td>toy factory</td>
<td class="bits"><span class="abuse">X</span><span class="free">OOO OOOO</span></td>
<td class="bits">-inherit-</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
</tr>
<tr>
<td>gold/copper/coal</td>
<td class="bits"><span class="abuse">XX</span><span class="free">OO OO</span><span class="abuse">XX</span></td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
</tr>
<tr>
<td>oil wells</td>
<td class="bits"><span class="abuse">X</span><span class="free">OOO OO</span><span class="abuse">XX</span></td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
</tr>
<tr>
<td>power station</td>
<td class="bits"><span class="abuse">X</span><span class="free">O</span><span class="abuse">XX XX</span><span class="free">OO</span></td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
<td class="bits">-inherit-</td>
</tr>
<tr>
<td rowspan=3>9</td>
<td class="caption">tunnel</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits">X<span class="free">OOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">X<span class="free">OOO</span> XXXX</td>
</tr>
<tr>
<td>bridge ramp</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span> <span class="abuse">XXXX</span> <span class="free">OOOO</span></td>
<td class="bits"><span class="free">OOOO</span> XXXX</td>
<td class="bits">X<span class="free">OOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXX<span class="free">O O</span>XXX</td>
</tr>
<tr>
<td>bridge middle part</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO</span> <span class="abuse">XXXX XXXX</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">X<span class="free">OOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
<tr>
<td>A</td>
<td class="caption">various (HQ)</td>
<td class="bits">XXXX XXXX</td>
<td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits"><span class="free">OOOO OOOO</span></td>
<td class="bits">XXXX XXXX</td>
<td class="bits">XXXX XXXX</td>
</tr>
</tbody>
</table>
</body>
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