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Signals: Add variable for restriction info, add bit for reserve through

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Jonathan G Rennison
2022-06-12 09:00:31 +01:00
parent 28724d651d
commit ba52fbeb91
11 changed files with 145 additions and 28 deletions
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docs/newgrf-additions-nml.html
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@@ -103,6 +103,22 @@
</td>
</tr>
</table>
<h3><a href="https://newgrf-specs.tt-wiki.net/wiki/NML:Railtypes#Railtype_variables">Railtypes variables</a></h3>
<p>Variables in the table below which are not supported by the version of OpenTTD being used return a value of 0.</p>
<table>
<tr><th>Variable</th><th>Value range</th><th>Comment</th></tr>
<tr><td>signal_restriction_info</td><td>bitmask(SIGNAL_RESTRICTION_INFO_XXX, ...)</td>
<td>
Information about the restricted signal status of the signal being drawn:
<dl>
<dt>RESTRICTED</dt>
<dd>The signal is restricted (has a routing restriction program attached)</dd>
<dt>RESERVE_THROUGH_ALWAYS</dt>
<dd>The attached routing restriction program unconditionally sets reserve through</dd>
</dl>
</td>
</tr>
</table>
<h3><a href="https://newgrf-specs.tt-wiki.net/wiki/NML:Roadtypes#Roadtype_properties">Roadtype properties</a></h3>
<table>
<tr><th>Property</th><th>Value range</th><th>Comment</th></tr>
@@ -400,6 +416,21 @@ item (FEAT_GLOBALVARS) {
</td>
</tr>
</table>
<br />
<table>
<tr><th>Variable</th><th>Value range</th><th>Comment</th></tr>
<tr><td>signal_restriction_info</td><td>bitmask(SIGNAL_RESTRICTION_INFO_XXX, ...)</td>
<td>
Information about the restricted signal status of the signal being drawn:
<dl>
<dt>RESTRICTED</dt>
<dd>The signal is restricted (has a routing restriction program attached)</dd>
<dt>RESERVE_THROUGH_ALWAYS</dt>
<dd>The attached routing restriction program unconditionally sets reserve through</dd>
</dl>
</td>
</tr>
</table>
<p>
Custom signal sprites example:
<pre class="code">