Callback: Build probability: Difference between revisions
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Andythenorth (talk | contribs) Add CB 162 (third time lucky?) |
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== Build probability (e.g. Reverse rail vehicle on build) (162) == |
== Build probability (e.g. Reverse rail vehicle on build) (162) == |
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This callback assigns rail vehicles a random chance of being built facing forward or backward (reversed) when purchased. |
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(Details to be added) |
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Return a value between 0...100 (decimal) to indicate the probability of being reversed. |
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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. |
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This callback is available from {{ottdp|14|no|ottdrev=g05ed9f56fd}} OpenTTD 14 and above. |
This callback is available from {{ottdp|14|no|ottdrev=g05ed9f56fd}} OpenTTD 14 and above. |
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Revision as of 20:41, 30 November 2023
Build probability (e.g. Reverse 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.