#include "SceneNode.h"

SceneNode::SceneNode(Mesh* mesh, Vector4 colour)
{
	this->mesh = mesh;
	this->colour = colour;
	parent = NULL;
	modelScale = Vector3(1, 1, 1);

	boundingRadius = 1.0f;
	distanceFromCamera = 0.0f;
	texture = 0;
}

SceneNode::~SceneNode(void)
{
	for (unsigned int i = 0; i < children.size(); ++i) {
		delete children[i];
	}
}

void SceneNode::AddChild(SceneNode* s)
{
	children.push_back(s);
	s->parent = this;
}

void SceneNode::RemoveChild(SceneNode* s) {
	if (s != this) {
		for (vector<SceneNode*>::iterator i = children.begin(); i != children.end(); ++i) {
			if ((*i) == s) {
				delete s;
				i = children.erase(i);
				--i;
			}
		}
	}
}

void SceneNode::Update(float dt) {
	if (parent) {
		worldTransform = parent->worldTransform * transform;
	}
	else {
		worldTransform = transform;
	}

	for (vector<SceneNode*>::iterator i = children.begin(); i != children.end(); ++i) {
		(*i)->Update(dt);
	}
}

void SceneNode::Draw(const OGLRenderer& r)
{
	if (mesh) { mesh->Draw(); }
}