internal LowerTerrain(LandscapingActionParameters parameters) : base(parameters)
 {
     Parameters.OldHeights = new List <float>(Parameters.VerticesToModify.Count);
 }
 internal LevelTerrain(LandscapingActionParameters parameters, float newHeight) : base(parameters)
 {
     Parameters.OldHeights = new List <float>(Parameters.VerticesToModify.Count);
     _newHeight            = newHeight;
 }
 internal PaintTerrain(LandscapingActionParameters parameters) : base(parameters)
 {
 }