#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;
}
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::Draw() {
	if (mesh) {
		mesh->Draw();
	}
}


void SceneNode::Update(float msec) {
	 if (parent) { // This node has a parent ...
		 worldTransform = parent -> worldTransform * transform;
		
	}
	else { // Root node , scene transform is local transform !
	 worldTransform = transform;
	
	}
	for (vector < SceneNode * >::iterator i = children.begin();
		i != children.end(); ++i) {
		(*i) -> Update(msec);
	}
}