Spring2D.critical constructor

Spring2D.critical({
  1. required Vec2 initialPos,
  2. double stiffness = 180.0,
})

Implementation

Spring2D.critical({
  required Vec2 initialPos,
  this.stiffness = 180.0,
})  : damping = 2 * math.sqrt(stiffness),
      pos = initialPos.clone(),
      velocity = Vec2.zero();