Doomsday Manual

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The //friction// of a sector determines how easy it is to change the momentum of things that touch the floor of the sector. Friction is defined as a floating point number in range 0 to 1.0. The lower the number, the larger the friction seems. Each [[game_tic]] (35 times per second) the momentum of the mobjs that touch the floor of the sector is multiplied by the friction value. This means if the friction is set to one, the momentum of the things inside the sector won't decrease at all.

^ Kind^ Value^ Original Hex |
| Standard friction| 0.90625| 0xE800 |
| Heretic ice friction| 0.97265625| 0xF900 |


As friction decreases (the value is nearing one), it becomes harder and harder to change the momentum of things, i.e. to accelerate or decelerate.


====== Example ======

  
  Sector Type {
      ID = 5009
      Comment = "Half friction"
      Flags = friction
      Friction = 0.5
  }

This will enable friction in the sector and change it to the desired value (Friction).

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