Difference between revisions of "Callback: Visual effect and wagon power"
Planetmaker (talk | contribs) m (→Visual effect and wagon power (10): version info for comments) |
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The callback is only called when loading a game, when the train reverses, or when rearranging the train in a depot. |
The callback is only called when loading a game, when the train reverses, or when rearranging the train in a depot. |
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| − | {{ottd}} In OpenTTD the 'visual effect' is also updated when the vehicle enters track of a different railtype. The 'powered wagon'-flag may not change in that case. |
+ | {{ottd| }} In OpenTTD the 'visual effect' is also updated when the vehicle enters track of a different railtype. The 'powered wagon'-flag may not change in that case. |
If the callback fails for any reason (e.g. not defined, action 2 does not return callback result etc.), the value of the corresponding action 0 property ( [[Action0Trains#Visual effects and wagon power 22|train property 22]], [[Action0RoadVehicles#Visual effect 21|road vehicle property 21]], [[Action0Ships#Visual effect 1C|ship property 1C]] ) is used instead. For possible return values, refer to these properties as well. |
If the callback fails for any reason (e.g. not defined, action 2 does not return callback result etc.), the value of the corresponding action 0 property ( [[Action0Trains#Visual effects and wagon power 22|train property 22]], [[Action0RoadVehicles#Visual effect 21|road vehicle property 21]], [[Action0Ships#Visual effect 1C|ship property 1C]] ) is used instead. For possible return values, refer to these properties as well. |
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Latest revision as of 23:16, 3 August 2011
Visual effect and wagon power (10)
| Features: | trains, road vehicles, ships |
| Purchase list | no |
| Variable 10 | n/a |
| Variable 18 | n/a |
| Result | selected effect |
| Fail result means | default properties |
| Return registers | n/a |
This callback is used to determine the visual effect to use for a vehicle and whether a train wagon is powered (adding power and weight to the train).
The 'powered wagon'-flag only applies for train wagons that would by default be powered (i.e. property 1B is set).
The visual effect applies to all train vehicles (
1.1 Since OpenTTD r21238 for road vehicles and ships as well).
The callback is only called when loading a game, when the train reverses, or when rearranging the train in a depot.
In OpenTTD the 'visual effect' is also updated when the vehicle enters track of a different railtype. The 'powered wagon'-flag may not change in that case.
If the callback fails for any reason (e.g. not defined, action 2 does not return callback result etc.), the value of the corresponding action 0 property ( train property 22, road vehicle property 21, ship property 1C ) is used instead. For possible return values, refer to these properties as well.
