public System.Collections.Generic.Dictionary <Vector2, Skid> SkidMarks; // <Vector2> offset, <Skid> skid info
public UnitType(string spriteName)
{
// this can stay here instead of References.cs since it is loaded on launch time
SpriteTexture = ResourceLoader.Load <Texture>(Vars.path_sprites + $"/units/{spriteName}");
SpriteTexture.Flags = 1;
Id = UnitTypes.Count;
UnitTypes.Add(UnitTypes.Count, this);
}