urho3d/Engine/Scene/Component.cpp

//
// Urho3D Engine
// Copyright (c) 2008-2011 Lasse Öörni
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#include "Precompiled.h"
#include "Component.h"
#include "Context.h"
#include "Node.h"
#include "XMLElement.h"

OBJECTTYPESTATIC(Component);

Component::Component(Context* context) :
    Serializable(context),
    id_(0),
    node_(0)
{
}

Component::~Component()
{
}

bool Component::Save(Serializer& dest)
{
    // Write type and ID
    if (!dest.WriteShortStringHash(GetType()))
        return false;
    if (!dest.WriteUInt(id_))
        return false;
    
    // Write attributes
    return Serializable::Save(dest);
}

bool Component::SaveXML(XMLElement& dest)
{
    // Write type and ID
    if (!dest.SetString("type", GetTypeName()))
        return false;
    if (!dest.SetInt("id", id_))
        return false;
    
    // Write attributes
    return Serializable::SaveXML(dest);
}

void Component::Remove()
{
    if (node_)
        node_->RemoveComponent(this);
}

const Matrix3x4& Component::GetWorldTransform() const
{
    return node_ ? node_->GetWorldTransform() : Matrix3x4::IDENTITY;
}

void Component::SetID(unsigned id)
{
    id_ = id;
}

void Component::SetNode(Node* node)
{
    node_ = node;
    OnNodeSet(node_);
}

Component* Component::GetComponent(ShortStringHash type) const
{
    return node_ ? node_->GetComponent(type) : 0;
}

void Component::GetComponents(PODVector<Component*>& dest, ShortStringHash type) const
{
    if (node_)
        node_->GetComponents(dest, type);
    else
        dest.Clear();
}