ArrowManagerBase.c

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class ArrowManagerBase
{
  protected const int VERSION = 2;
  protected ref array<EntityAI> m_Arrows;
  protected EntityAI m_Owner;
 
  void ArrowManagerBase(EntityAI owner)
  {
    m_Owner = owner;
    m_Arrows = new array<EntityAI>();
  }
 
  void AddArrow(EntityAI arrow)
  {
    m_Arrows.Insert(arrow);
  }
 
  void RemoveArrow(EntityAI arrow)
  {
    m_Arrows.RemoveItem(arrow);
  }
 
  void ClearArrows()
  {
    foreach (EntityAI arrow : m_Arrows)
    {
      if (arrow)
        arrow.DeleteSafe();
    }
 
    m_Arrows.Clear();
  }
 
  int GetArrowsCount()
  {
    return m_Arrows.Count();
  }
 
  void DropArrow(int index)
  {
    if (m_Arrows.Count() > index)
    {
      EntityAI arrow = m_Arrows.Get(index);
      vector pos = arrow.GetPosition();
 
      m_Owner.RemoveChild(arrow);
 
      vector m4[4];
      Math3D.MatrixIdentity4(m4);
      m4[3] = pos;
 
      arrow.PlaceOnSurfaceRotated(m4, pos);
 
      arrow.SetTransform(m4);
      arrow.PlaceOnSurface();
    }
  }
 
  void DropFirstArrow()
  {
    DropArrow(0);
  }
 
  void DropAllArrows()
  {
    for (int i = m_Arrows.Count() - 1; i >= 0 ; i--)
      DropArrow(i);
  }
 
  EntityAI GetArrow(int index)
  {
    if (m_Arrows.Count() > index)
      return m_Arrows.Get(index);
 
    return null;
  }
 
  EntityAI GetFirstArrow()
  {
    if (m_Arrows.Count())
      return m_Arrows.Get(0);
 
    return null;
  }
 
  EntityAI AcquireFirstArrow(bool keepTransform = false)
  {
    EntityAI entity = GetFirstArrow();
    m_Owner.RemoveChild(entity, keepTransform);
    return entity;
  }
 
}