/// <summary>
/// Add a child node
/// </summary>
public void AddChild(NodeBase node)
{
if(childList == null)
childList = new Collection<NodeBase>();
node.Parent = this;
childList.Add(node);
}
/// <summary>
/// it checks whether the node is a child node
/// </summary>
public bool IsChild(NodeBase node)
{
return childList.Contains(node);
}
/// <summary>
/// Copy all child nodes to array.
/// </summary>
public void GetChildArray(NodeBase[] array)
{
childList.CopyTo(array, 0);
}
/// <summary>
/// Insert a child node
/// </summary>
public void InsertChild(int index, NodeBase node)
{
node.Parent = this;
childList.Insert(index, node);
}
/// <summary>
/// Remove a child node
/// </summary>
/// <param name="node">target node</param>
/// <param name="isRecursive">
/// whether to remove the child node which has been included in the target node
/// </param>
public void RemoveChild(NodeBase node, bool isRecursive)
{
if (childList != null)
{
if (isRecursive )
{
node.RemoveAllChild(isRecursive);
}
childList.Remove(node);
node.Parent = null;
}
}
/// <summary>
/// Remove this node from parent
/// </summary>
public void RemoveFromParent()
{
if (parent != null)
{
parent.RemoveChild(this, false);
parent = null;
}
}
/// <summary>
/// Insert a child node
/// </summary>
public void InsertChild(int index, NodeBase node)
{
node.Parent = this;
childList.Insert(index, node);
}
/// <summary>
/// it checks whether the node is a child node
/// </summary>
public bool IsChild(NodeBase node)
{
return(childList.Contains(node));
}
/// <summary>
/// drops weapon at specified position.
/// </summary>
/// <param name="position">new drop position</param>
/// <param name="parent">new scene node</param>
/// <param name="layer">new collision layer</param>
public void Drop(Vector3 position, NodeBase parent, CollisionLayer layer)
{
// Detached scene node from owner
AttachOwner(parent);
// Add a collision
if( layer != null)
layer.AddCollide(this.Collide);
DroppedModel.SetRootAxis(
Matrix.CreateRotationX(MathHelper.ToRadians(-90.0f)));
this.Position = position;
this.isDropped = true;
this.Enabled = true;
this.Visible = true;
}
/// <summary>
/// owner acquires weapon.
/// </summary>
/// <param name="owner"></param>
public void Pickup(NodeBase owner)
{
// Attach node to new owner
AttachOwner(owner);
// All weapon model is active
for (int i = 0; i < modelWeapon.Length; i++)
{
this.modelWeapon[i].Enabled = true;
this.modelWeapon[i].Visible = true;
this.modelWeapon[i].WorldTransform = Matrix.Identity;
}
// Collision is off
this.Collide.RemoveInLayer();
DroppedModel.SetRootAxis(Matrix.Identity);
this.WorldTransform = Matrix.Identity;
this.isDropped = false;
this.Enabled = false;
this.Visible = false;
}
/// <summary>
/// sticks to the owner as a child.
/// Will depend on owner as a child.
/// </summary>
/// <param name="owner"></param>
public void AttachOwner(NodeBase owner)
{
DetachOwner();
if (specData.ModelAlone )
{
for (int i = 0; i < specData.ModelCount; i++)
{
// New parent is owner now
this.AddChild(modelWeapon[i]);
modelWeapon[i].SetRootAxis(Matrix.Identity);
}
}
owner.AddChild(this);
}