EntityPlacementCallback.c

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class EntityPlacementCallback : ObjectSnapCallback
{
#ifdef DIAG_DEVELOPER
#ifndef SERVER
  ref array<Shape> m_Shapes = new array<Shape>();
#endif
#endif
 
  void EntityPlacementCallback()
  {
  }
 
  void ~EntityPlacementCallback()
  {
    ClearDebugShapes();
  }
 
  void ClearDebugShapes()
  {
#ifdef DIAG_DEVELOPER
#ifndef SERVER
    foreach (auto shape : m_Shapes)
    {
      shape.Destroy();
      shape = null;
    }
    m_Shapes.Clear();
#endif
#endif
  }
 
  override void OnSetup()
  {
#ifdef DIAG_DEVELOPER
#ifndef SERVER
    m_DebugEnabled = DiagMenu.GetBool(DiagMenuIDs.INVENTORY_ENTITY_PLACEMENT_CALLBACK_DEBUG);
#endif
#endif
 
    ClearDebugShapes();
 
    m_DirectionFunc[0] = 1.2;
    m_DirectionFunc[1] = 0.3;
 
    Human human;
    if (Class.CastTo(human, m_Owner))
    {
      m_OwnerPosition = human.GetBonePositionWS(human.GetBoneIndexByName("Head"));
 
      HumanInputController hic = human.GetInputController();
      if (hic)
      {
        float headingAngle = hic.GetHeadingAngle() + Math.PI_HALF;
        m_OwnerDirection[0] = Math.Cos(headingAngle);
        m_OwnerDirection[1] = 0.0;
        m_OwnerDirection[2] = Math.Sin(headingAngle);
 
        m_OwnerDirection.Normalized();
      }
      else
        m_OwnerDirection = human.GetDirection();
    }
    else if (m_Owner)
    {
      m_OwnerPosition = m_Owner.GetPosition();
      m_OwnerDirection = m_Owner.GetDirection();
    }
  }
 
  override void OnDebug(vector p0, vector p1, bool hasHit, bool found)
  {
#ifdef DIAG_DEVELOPER
#ifndef SERVER
    Shape shape;
 
    int alpha = 0x33000000;
    int colour = 0x00FF0000;
    if (!hasHit && found)
      colour = 0x000000FF;
    else if (!hasHit)
    {
      colour = 0x0000FF00;
      alpha = 0x11000000;
    }
 
    shape = Shape.Create(ShapeType.BBOX, colour | alpha, ShapeFlags.NOZBUFFER | ShapeFlags.TRANSP, -m_Extents, m_Extents);
    shape.SetMatrix(m_Transform);
    m_Shapes.Insert(shape);
 
    vector p[2];
    p[0] = p0;
    p[1] = p1;
    shape = Shape.CreateLines(colour | 0xFF000000, ShapeFlags.NOZBUFFER | ShapeFlags.TRANSP, p, 2);
    m_Shapes.Insert(shape);
#endif
#endif
  }
 
  override bool OnFirstContact(Object other)
  {
    if (!other.IsTransport())
      return false;
 
    return true;
  }
 
  override bool OnQuery(Object other)
  {
    if (other.IsScenery())
      return false;
 
    if (other.IsMan())
      return false;
 
    EntityAI entity;
    if (Class.CastTo(entity, other))
    {
      if (entity.IsAnimal() || entity.IsZombie())
        return false;
    }
 
    if (other.GetCollisionRadius() < 0.05)
      return false;
 
    return true;
  }
 
  override bool OnCollide(Object other)
  {
    if (other.IsScenery())
      return false;
 
    if (other.IsMan())
      return false;
 
    if (!other.CanObstruct() && !other.IsTransport())
      return false;
 
    return true;
  }
};