Decal animator

Decal animators describe how a decal is changed after it has been created. You create a decal animator like this in the DECALDEF lump:

animatortype AnimatorName
{
  properties
  ...
}

Any decal animator defined this way can be specified in a decal definition by using the 'Animator' keyword.

There are 5 types of decal animators:

Faders

Faders have the purpose of fading a decal out. Their syntax is:

fader FaderName
{
   DecayStart <time>
   DecayTime <time>
}
  • DecayStart specifies the time in seconds the decal remains unchanged until the fading process starts
  • DecayTime specifies the time in seconds it takes until the decal has completely faded out.

Stretchers

Stretchers have the purpose of stretching the decal to a defined size. Their syntax is: 


stretcher StretcherName
{
   GoalX <size>
   GoalY <size>
   StretchStart <time>
   StretchTime <time>
}


  • GoalX specifies the final horizontal scaling factor of the decal
  • GoalY specifies the final vertical scaling factor of the decal
  • StretchStart specifies the time in seconds the decal remains unchanged until the stretching process starts
  • StretchTime specifies the time in seconds how long the stretching process will take.

Sliders


Sliders have the purpose of sliding the decal along a wall. Their syntax is: 


slider SliderName
{
   DistX <size>
   DistY <size>
   SlideStart <time>
   SlideTime <time>
}


  • DistX specifies the distance the decal moves in X-direction
  • DistY specifies the distance the decal moves in Y-direction
  • SlideStart specifies the time in seconds the decal remains unchanged until the sliding process starts
  • SlideTime specifies the time in seconds how long the sliding process will take.

Color changers

Color changers have the purpose of gradually altering the color of a decal. Their syntax is: 


colorchanger ChangerName
{
   Color "rr gg bb"
   FadeStart <time>
   FadeTime <time>
}


  • Color specifies the color the decal should change into.
  • FadeStart specifies the time in seconds the decal remains unchanged until the changing process starts
  • FadeTime specifies the time in seconds how long the changing process will take.

Combiner


Combiners are used to combine more than one decal animator on one decal. Their syntax is:

Combiner CombinerName
{
   AnimatorName
   AnimatorName
   ...
}

Each AnimatorName must specify a previously defined animator.


Note: All information here is directly taken from the source code and has not been verified with actual examples so there may be some slight errors.

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