Node.cpp

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/* Contact chebert@nvidia.com (Chris Hebert) for feedback */

#include "Node.h"


Node::Node():
m_parent(0),
m_position(0.0,0.0,0.0),
m_rotation(0.0,0.0,0.0),
m_scale(1.0,1.0,1.0),
m_transform_needs_update(true)
{
}

Node::Node(Node  *inParent, const ID &inID) :
m_parent(inParent),
m_id(inID),
m_position(0.0, 0.0, 0.0),
m_rotation(0.0, 0.0, 0.0),
m_scale(1.0, 1.0, 1.0),
m_transform_needs_update(true){

}

void Node::reset(){

}

bool Node::update(bool inUpdateChildren){
	bool updated = false;

	//m_transform_needs_update = true;
	if (m_transform_needs_update || inUpdateChildren){
		Transform *parentTransform = NULL;
		if (m_parent) parentTransform = &m_parent->GetTransform();

		m_transform.reset();
        nv_math::vec4f tra = nv_math::vec4f(m_position,1.0);
        m_transform.translate(tra);
		nv_math::quatf q;
		q.from_euler_xyz(m_rotation);
		m_transform.rotate(q);

		m_transform.update(parentTransform);
		m_transform_needs_update = false;
		updated = true;
	}

	uint32_t cnt = m_child_nodes.count();

	if (updated)
	for (uint32_t i = 0; i < cnt; ++i){
		m_child_nodes.getNode(i)->update(updated);

	}

	return updated;
}

nv_math::vec4f Node::worldPosition(){
	nv_math::vec4f outPosition(0.0, 0.0, 0.0, 1.0);

	return m_transform(outPosition);
}

nv_math::vec4f Node::worldPosition(nv_math::vec4f &inPosition){
	return m_transform(inPosition);
}

void Node::draw(){


}

void Node::setPosition(float inX, float inY, float inZ){
	m_position.x = inX;
	m_position.y = inY;
	m_position.z = inZ;
	m_transform_needs_update = true;
}

void Node::setRotation(nv_math::quatf &inQuat){
	nv_math::vec3f angles;
	inQuat.to_euler_xyz(angles);
	setRotation(angles.x, angles.y, angles.z);
}

void Node::setRotation(float inX, float inY, float inZ){
	m_rotation.x = inX;
	m_rotation.y = inY;
	m_rotation.z = inZ;
	m_transform_needs_update = true;
}

void Node::setScale(float inX, float inY, float inZ){
	m_scale.x = inX;
	m_scale.y = inY;
	m_scale.z = inZ;
	m_transform_needs_update = true;
}

void Node::setScale(float inScale){
	setScale(inScale, inScale, inScale);
}

Node *Node::newChild(){
	return newChild(0.0, 0.0, 0.0);
}

Node *Node::newChild(const ID &inID){

	Node *node = new Node(this, inID);
	m_child_nodes.addNode(node,this);
	return node;

}

Node *Node::newChild(const Vec4f &inPosition){
	ID id = m_child_nodes.nextID();
	Node *node = new Node(this, id);
	m_child_nodes.addNode(node, this);
	return node;
}

Node *Node::newChild(const float inX, const float inY, const float inZ){
	Vec4f position = {inX,inY,inZ,1.0};
	return newChild(position);
}

Renderable *Node::newRenderable(){
	Renderable *renderable = new Renderable();
	m_renderables.push_back(renderable);
	return renderable;
}

Renderable *Node::getRenderable(const Renderable::ID &inID){
	if (inID >= m_renderables.size()) return NULL;
	return m_renderables[inID];
}

Node::NodeList &Node::ChildNodes(){
	return m_child_nodes;
}

Transform &Node::GetTransform(){
	return m_transform;
}

void Node::getTriangles(render::TriangleList &outTriangles){
    uint32_t cnt = m_renderables.size();

	for (uint32_t i = 0; i < cnt; ++i){
		Mesh *mesh = m_renderables[i]->getMesh();
		if (!mesh) continue;

		uint32_t triCnt = mesh->getTriangleCount();

		for (uint32_t j = 0; j < triCnt; ++j){
			render::Triangle tri = {
				mesh->getTriangle(j),
				this
			};
			outTriangles.push_back(tri);
		}
    }
}

Node::~Node()
{
}

Node::NodeList::NodeList(){}
Node::NodeList::~NodeList(){}

Node::ID Node::NodeList::nextID(){
	return m_data.size();
}

Node::Count Node::NodeList::count(){
	return m_data.size();
}

Node *Node::NodeList::newNode(const ID &inID,Node *inParent){
	Node *node = new Node(inParent, inID);
	m_data.push_back(node);
	return node;
}

void Node::NodeList::addNode(Node *inNode, Node *inParent){

	if (!inNode) return;

	inNode->setParent(inParent);


	m_data.push_back(inNode);
}

Node *Node::NodeList::getNode(const ID &inID){
	if (inID >= count()) return NULL;
	return m_data[inID];
}