Classes:PowerSpeed

From ZDoom Wiki

Super speed power
Actor type	Power	Game
DoomEd Number	None	Class Name	PowerSpeed

Classes: Inventory→Powerup→PowerSpeed

PowerSpeed is an internal class. An item of this class is placed in the player's inventory while the Speed powerup is effective. During the time this effect is active, the player will be given a multiplier to their movement rate, by a factor of the Speed property.

Like all other Powerups items of this class are never used directly. Instead you have to create a new item that inherits from PowerupGiver to give it to the player.

DECORATE definition

ACTOR PowerSpeed : Powerup native
{
  Powerup.Duration -45
  Speed 1.5
  Inventory.Icon "SPBOOT0"
}