From 52c59d68791eb357e4f1f22e69364b569bc1e0aa Mon Sep 17 00:00:00 2001
From: devZoGok <nenkokeko@yandex.com>
Date: Wed, 1 Apr 2020 10:31:22 +0300
Subject: [PATCH] removable lights and skybox

---
 node.cpp | 65 +++++++++++++++++++++++++-------------------------------
 node.h   |  3 +++
 root.cpp |  6 ++++++
 root.h   |  1 +
 vector.h |  2 ++
 5 files changed, 41 insertions(+), 36 deletions(-)

diff --git a/node.cpp b/node.cpp
index 8f27ced..ba74222 100755
--- a/node.cpp
+++ b/node.cpp
@@ -26,9 +26,7 @@ namespace vb01{
 		for(Text *t : texts)
 			delete t;
 		for(Node *c : children){
-			Node *par=c->getParent();
-			if(par)
-				par->dettachChild(c);
+			//dettachChild(c);
 			delete c;
 		}
 	}
@@ -49,27 +47,11 @@ namespace vb01{
 	}
 
 	void Node::attachChild(Node *child){
-		/*
-		Node *parent=getParent();
-		while(parent){
-			parent->getDescendants().push_back(child);
-			parent=parent->getParent();
-		}
-		descendants.push_back(child);
-		*/
 		child->setParent(this);
 		children.push_back(child);
 	}
 
 	void Node::dettachChild(Node *child){
-		/*
-		Node *parent=getParent();
-		while(parent){
-			parent->getDescendants().push_back(child);
-			parent=parent->getParent();
-		}
-		descendants.push_back(child);
-		*/
 		child->setParent(nullptr);
 		int id=-1;
 		for(int i=0;i<children.size()&&id==-1;i++)
@@ -89,26 +71,18 @@ namespace vb01{
 	}
 
 	void Node::addLight(Light *light){
+		Root::getSingleton()->numLights++;
 		lights.push_back(light);	
 		light->setNode(this);
-		Root *root=Root::getSingleton();
+		updateShaders();
+	}
 
-		Node *rootNode=Root::getSingleton()->getRootNode();
-		vector<Node*> descendants;
-		rootNode->getDescendants(rootNode,descendants);
-		descendants.push_back(rootNode);
-		root->numLights++;
-		for(Node *n : descendants){
-			vector<Mesh*> meshes=n->getMeshes();
-			for(Mesh *m : meshes){
-				Material *mat=m->getMaterial();
-				string str=to_string(root->numLights>0?root->numLights:1);
-				if(mat){
-					//mat->getShader()->editShader(true,'=',';',str);
-					mat->getShader()->editShader(false,'=',';',str);
-				}
-			}
-		}
+	void Node::removeLight(int id){
+		Root::getSingleton()->numLights--;
+		Light *light=lights[id];
+		light->setNode(nullptr);
+		lights.erase(lights.begin()+id);
+		updateShaders();
 	}
 
 	void Node::addText(Text *text){
@@ -242,4 +216,23 @@ namespace vb01{
 
 		return p;
 	}
+
+	void Node::updateShaders(){
+		Root *root=Root::getSingleton();
+		Node *rootNode=Root::getSingleton()->getRootNode();
+		vector<Node*> descendants;
+		rootNode->getDescendants(rootNode,descendants);
+		descendants.push_back(rootNode);
+		for(Node *n : descendants){
+			vector<Mesh*> meshes=n->getMeshes();
+			for(Mesh *m : meshes){
+				Material *mat=m->getMaterial();
+				string str=to_string(root->numLights>0?root->numLights:1);
+				if(mat){
+					//mat->getShader()->editShader(true,'=',';',str);
+					mat->getShader()->editShader(false,'=',';',str);
+				}
+			}
+		}
+	}
 }
diff --git a/node.h b/node.h
index 36da0a3..977a5e7 100755
--- a/node.h
+++ b/node.h
@@ -27,6 +27,7 @@ namespace vb01{
 			void attachChild(Node*);
 			void dettachChild(Node*);
 			void addLight(Light*);
+			void removeLight(int);
 			void addText(Text*);
 			void lookAt(Vector3,Vector3);
 			Transform getWorldTransform();
@@ -57,6 +58,8 @@ namespace vb01{
 			inline void setVisible(bool v){this->visible=v;}
 			void getDescendants(Node*,std::vector<Node*>&);
 		protected:
+			void updateShaders();
+			
 			bool visible=true;
 			Vector3 pos,scale;
 			Quaternion orientation;
diff --git a/root.cpp b/root.cpp
index 9aee6aa..2f660c7 100755
--- a/root.cpp
+++ b/root.cpp
@@ -162,4 +162,10 @@ namespace vb01{
 		skyboxMat->addDiffuseMap(textures);
 		skybox->setMaterial(skyboxMat);
 	}
+
+	void Root::removeSkybox(){
+		Material *mat=skybox->getMaterial();
+		delete skybox;
+		skybox=nullptr;
+	}
 }
diff --git a/root.h b/root.h
index 6fc1b42..84f10b0 100755
--- a/root.h
+++ b/root.h
@@ -35,6 +35,7 @@ namespace vb01{
 			inline void setBlurLevel(bool level){this->blurLevel=level;}
 			inline Box* getSkybox(){return skybox;}
 			void createSkybox(std::string[6]);
+			void removeSkybox();
 			static Root* getSingleton();
 			int numLights=0;
 		private:
diff --git a/vector.h b/vector.h
index 9735de0..b56f544 100755
--- a/vector.h
+++ b/vector.h
@@ -2,6 +2,7 @@
 #define VECTOR_H
 
 #include<cmath>
+#include<iostream>
 
 namespace vb01{
 	struct Vector4{
@@ -67,6 +68,7 @@ namespace vb01{
 		float getLength(){return std::sqrt(getLengthSq());}
 		float dot(Vector2 v){return x*v.x+y*v.y;}
 		float getAngleBetween(Vector2 v){return std::acos(dot(v));}
+		float getDistanceFrom(Vector2 v){return (v-*this).getLengthSq();}
 		Vector2 norm(){return *this/getLength();}
 
 		float x,y;