Makes the entities listed below indestructible. They cannot be targeted by players or biters.

Adding this mod to an existing save will make existing instances of these entities indestructible. It might take a few moments to load the very first time, as it has to scan the entire map to locate the existing entities. Subsequent loads will be faster.

Indestructible entities:
- locomotive
- cargo-wagon
- fluid-wagon
- artillery-wagon
- straight-rail
- curved-rail
- rail-signal
- rail-chain-signal
- train-stop