Did torpedo boats evolve from gunboats?

Did torpedo boats evolve from gunboats?

They share a direct early lineage through torpedo gunboats; the Austro-Hungarian gunboat SMS Seehund launched the first self-propelled torpedo.

The answer treats torpedo craft and gunboats as related small-combatant traditions rather than wholly separate inventions. The torpedo gunboat provides the bridge between roles, with SMS Seehund anchoring the technological connection. A new weapon first altered an existing vessel type before helping to produce a distinct class of fast attack craft.