Difference between revisions of "Callback: Build probability"
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+ | == Probability of reversing rail vehicle on build (162) == |
This callback assigns rail vehicles a random chance of being built facing forward or backward (reversed) when purchased. |
This callback assigns rail vehicles a random chance of being built facing forward or backward (reversed) when purchased. |
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Revision as of 20:43, 30 November 2023
Probability of reversing rail vehicle on build (162)
This callback assigns rail vehicles a random chance of being built facing forward or backward (reversed) when purchased.
Return a value between 0...100 (decimal) to indicate the probability of being reversed.
The same random-reverse behaviour can be implemented without the callback, by randomly switching to reversed sprites in the vehicle's varaction 2 chain, but this is inefficient as it typically causes sprites to be duplicated in the grf.
This callback is available from 
14 
OpenTTD 14 and above.
