Industry state dependent tiles
Industry sprites and animations should depend on current industry state (waiting cargo pile, amounts of produced/transported cargo etc).
factory, food processor: smoke emission from three chimneys depending on three stockpiles;
coal mine, gold mine, oil wells: animations switched off if there is no crew available
coal mine: coal piles if monthly produced coal exceed xxx tons.
paper mill: wood piles visible if there is wood stockpile waiting (and stockpile feature is enabled)
steel mill: dark red furnace instead of fire animation if coal stockpile is empty (and coal chain is forced),
large smoke from 3 chimneys if monthly steel production exceed xx tons;
saw mill: wood piles visible if there is wood stockpile waiting (and stockpile feature is enabled)
logging camp: wood piles or wood transport animation depending on amount of wood produced/transported
animal farm: grain stockpile visualisation (hey shelter)
arable farm: goods stockpile visualisation (trailers shed)
oil rig: fire lit if not resources not exhausted