Plasma vs cap ship missle

[dmm]

The previous Posts got me thinking about mines in combat. Is it hard-coded that mines have zero movement, or can that be modded? If moddable, then that would make mines very interesting for tactical combat.
I guess you could also mod a missile to do that. The range is limited by hard code. A moving mine could be a max-range "missile" that is hard to destroy, does damage like a mine, moves one/turn. The ship component would be the size of a minelayer component (or maybe smaller since multiple mines can be laid each turn, but only one missile fired), would use up supplies slowly, and would fire every turn.