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Add custom signal style properties to set electric/semaphore enabled types

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Jonathan G Rennison
2022-06-19 17:43:46 +01:00
parent 175c5d4d50
commit 191f710c40
9 changed files with 164 additions and 13 deletions
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docs/newgrf-additions.html
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@@ -431,9 +431,35 @@
The Action 0 Id field is not used, the value is ignored.
</p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_style</font>, version 1</p>
<h4 id="signals_style_electric_enabled">Set custom signal style train electric signal types enabled (mappable property: signals_style_electric_enabled)</h4>
<p>This applies to the most recent custom signal style defined using the <a href="#signals_define_style">signals_define_style</a> property.<br />
This sets which electric signal types may be built using this signal style.</p>
<p>At least one of this property and <a href="#signals_style_semaphore_enabled">signals_style_semaphore_enabled</a> should be set to a non-zero value, as otherwise
no signal types will be enabled for this custom signal style.</p>
<p>The property length is 4 bytes:
<table>
<tr><th>Bit</th><th>Value</th><th>Meaning</th></tr>
<tr><td>0</td><td>1</td><td>Normal/block</td></tr>
<tr><td>1</td><td>2</td><td>Pre-signal entry</td></tr>
<tr><td>2</td><td>4</td><td>Pre-signal exit</td></tr>
<tr><td>3</td><td>8</td><td>Pre-signal combo</td></tr>
<tr><td>4</td><td>10</td><td>Two-way PBS</td></tr>
<tr><td>5</td><td>20</td><td>One-way PBS</td></tr>
<tr><td>6</td><td>40</td><td>Programmable pre-signal</td></tr>
<tr><td>7</td><td>80</td><td>No-entry</td></tr>
</table>
If the programmable pre-signal and/or no-entry bits are set, it is not necessary to also set <a href="#signals_enable_programmable_signals">signals_enable_programmable_signals</a>
or <a href="#signals_enable_no_entry_signals">signals_enable_no_entry_signals</a>.
</p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_style</font>, version 1</p>
<h4 id="signals_style_semaphore_enabled">Set custom signal style train semaphore signal types enabled (mappable property: signals_style_semaphore_enabled)</h4>
<p>This applies to the most recent custom signal style defined using the <a href="#signals_define_style">signals_define_style</a> property.<br />
This sets which semaphore signal types may be built using this signal style.</p>
<p>The property length is 4 bytes and has an identical format to <a href="#signals_style_electric_enabled">signals_style_electric_enabled</a>, above.</p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_style</font>, version 1</p>
<h4 id="signals_style_no_aspect_increase">Set custom signal style no aspect increase mode (mappable property: signals_style_no_aspect_increase)</h4>
<p>This applies to the most recent custom signal style defined using the <a href="#signals_define_style">signals_define_style</a> property.<br />
When enabled, signals using this style do not increase the signal aspect with respect to the signals either side (i.e. function like a banner repeater).</p>
When enabled, signals using this style do not increase the signal aspect with respect to the signals either side (i.e. the behaviour is like a banner repeater).</p>
<p>The property length is 1 byte. 0 is disabled (default). 1 is enabled.<br />
The Action 0 Id field is not used, the value is ignored.
</p>