精卫填海 (JingWeiFillsSea)

Inspired by the Chinese idiom "Jing Wei Fills the Sea". Colonists use the Mining work type to terraform terrain. Includes three marker buildings:

1. Water Filler (Fill Sea): Converts shallow/deep/ocean water, rivers, and marsh into land (Soil). Can only be placed on water/marsh tiles.
2. Flood Filler (Flood Land): Converts any buildable terrain into shallow water. No placement restrictions.
3. Deep Water Filler: Converts any buildable terrain into deep water (impassable). No placement restrictions.

All markers have a high default work amount (~4 in-game days), adjustable via the mod settings multiplier. Markers auto-destroy upon completion, leaving the transformed terrain.

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受"精卫填海"启发，殖民者可使用"挖掘"(Mining) 工作类型进行地形改造。包含三种标记建筑：

1. 水体填充标记（填海）：将浅水、深水、咸水、河流及沼泽变为陆地（土壤），只能放置在水体上。
2. 注水标记（灌水）：将任意可建造地形变为浅水，不限放置位置。
3. 制造深水区：将任意可建造地形变为深水（不可通行），不限放置位置。

三种标记默认工作量均较高（约 4 个游戏日），可在 Mod 设置中统一调整工作量倍率。完成后标记自动消失，留下改造后的地形。