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Ammunition | Animals & Creatures | Antlions | Beams & Lasers | Cables & Ropes | Clouds & Sky | Color Theory | Combat | Combine | Doors | Dust, Fog & Smoke | Elevators | Level Transitions | Environmental Lighting & Weather | Explosions | Fire | Foliage | Glass | Headcrab | Health | Ladders | Lighting | Optimization | Physics | Retinal scanners | Sound & Music | Special effects | Terrain | Trains | Turrets | Water | Weapons | Zombie
Train entities move along a predetermined track, and can represent anything that moves.
func_tracktrain- The part that moves. Brush-based.
path_track- A waypoint on the track. Invisible and non-solid.
func_tanktrain- Train that attacks and dies.
func_platrot- Raises or lowers a stopped train, turning as it changes height (as seen in Half-Life).
func_traincontrols- Lets players control the train.