Oil Rigs from 1950

Offshore oil platforms only appear from 1950, when the first helicopters that can serve their helipads become available. Before 1950: - Oil platforms are locked in the build menu. - Oil platforms placed by the game (map generation, new industries, older savegames) are removed. - Each removed platform is replaced by an onshore oil field. It looks and works like an oil well, but the game counts it as an oil platform, so it keeps founding other industries as normal. The replacement goes to the platform's town area, or a neighbouring one if that already has an oil well. - Platforms you own or use are kept: a platform stays protected as long as a line serves it, or once it has transported any cargo. - Prospecting for crude oil can found an oil platform; it is removed and always replaced by an oil field near the prospected town. In 1950: - The onshore oil fields become regular oil wells, and one oil platform is founded. After that the mod does nothing. - Games started in 1950 or later are not affected at all. Warning: before 1950, if you delete the last line serving an oil platform that has not transported any cargo yet, the platform will be removed within seconds, as described above. Existing onshore oil wells are not affected. Tested on PC only. AI disclosure: This mod was developed by a professional software engineer with assistance from Claude (Anthropic's AI) and personally tested in-game by the author. The cover image was generated with ChatGPT.