In the public server game PSG #117 (r14508) I tested the timelapse patch by Roujin. It allows you to create screenshots automatically at a given interval. The screenshots can be converted to a movie with a program like mencoder.
I used a 8x zoom for the global view and 4x zoom for the local views to get small images for a 12×512 map. Additionally I use a 60 day timer for the global view and a 30 day timer for the local views. However these values are not well balanced and depends on the number of clients on the server. In the beginning the server was almost inactive, so the timelapse patch creates a lot of images which are the same. Only small changes has been done. But then the activity is increasing and you see the full potentional of the timelapse patch. BBHs get rebuild, station entries/exits improved and priorities added. You can check all timelapse videos at /videos/timelapse/.
After testing it I can say its a good idea to show everyone how someone (like us) is building a network. But you need 1) an active game and 2) some space on your hard drive…
[19:35] progman@proglap ~/.openttd $ du -ch 5.4M ./data 16M ./save/autosave 16M ./save 1.9G . 1.9G total [19:36] progman@proglap ~/.openttd $ dir | grep timelapse# | wc -l 7259 [19:36] progman@proglap ~/.openttd $
Just to get an impression how many screenshots have been created (10 local views + 1 global view).