3 types of lights

supported number of n lights

node.cpp

@@ -1,5 +1,9 @@
+#include"root.h"
 #include"node.h"
 #include"mesh.h"
+#include"light.h"
+
+using namespace std;
 
 namespace vb01{
 	Node::Node(Vector3 pos){
@@ -11,16 +15,40 @@ namespace vb01{
 	void Node::update(){
 		if(mesh)
 			mesh->update();			
+		for(Light *l : lights)
+			l->update();
 		for(Node *c : children)
 			c->update();
 	}
 
 	void Node::attachChild(Node *child){
+		Node *parent=getParent();
+		while(parent){
+			parent->getDescendants().push_back(child);
+			parent=parent->getParent();
+		}
 		children.push_back(child);
+		descendants.push_back(child);
 	}
 
 	void Node::setObject(Mesh *mesh){
 		this->mesh=mesh;	
 		mesh->setNode(this);
 	}
+
+	void Node::addLight(Light *light){
+		lights.push_back(light);	
+		light->setNode(this);
+
+		Node *rootNode=Root::getSingleton()->getRootNode();
+		vector<Node*> descendants=rootNode->getDescendants();
+		descendants.push_back(rootNode);
+		int numLights=0;
+		for(Node *n : descendants)
+			numLights+=n->getNumLights();
+		for(Node *n : descendants)
+			if(n->getMesh())
+				if(n->getMesh()->getMaterial())
+					n->getMesh()->getMaterial()->getShader()->setNumLights(numLights>0?numLights:1);
+	}
 }