two direction connections with blockers working

src/main.cpp

@@ -34,6 +34,9 @@
 
 #include "node.h"
 #include "signal.h"
+#include "connection.h"
+
+#include "connection-manager.h"
 
 libremidi::observer obs;
 libremidi::midi_out midi_out;
@@ -43,8 +46,8 @@ std::vector<libremidi::output_port> midi_out_ports;
 
 std::vector<Node> nodes;
 std::vector<Signal> signals;
-
-//std::map<Movable*, std::vector<Node*>> connections;
+//std::vector<Connection> connections;
+ConnectionManager cm;
 
 Vec2D<float> mouse_pos;
 Vec2D<float> drag_start;
@@ -99,7 +102,7 @@ int main(){
 	}
 	
 	for(int i = 0; i < 2; i++){
-		signals.emplace(signals.end(), Signal(0, 0, 5.0f, 2.0f));
+		signals.emplace(signals.end(), Signal(1280, 720, 5.0f, 2.0f));
 		signals[i].next = &nodes[0];
 	}
 
@@ -108,7 +111,7 @@ int main(){
 	Vec2D<float> drag_offset;
 
 	Node* connecting_from;
-
+	
 	while(!WindowShouldClose()){
 
 		Vector2 mp = GetScreenToWorld2D(GetMousePosition(), camera);
@@ -155,9 +158,9 @@ int main(){
 					}
 					
 					if(mouse_released && (n.hover_connect || n.hover_move)) {
-						if(&n != connecting_from){
-							n.connections.push_back(connecting_from);
-							connecting_from->connections.push_back(&n);
+						if(&n != connecting_from && connecting_from != nullptr){
+							cm.connections.emplace(cm.connections.end(), connecting_from, &n);
+							connecting_from = nullptr;
 						}
 					}
 
@@ -182,19 +185,14 @@ int main(){
 					n.draw(&mouse_pos);
 				}
 
-				/*for( auto from : connections){*/
-				/*	for( auto to : from.second){*/
-				/*		Vec2D<float> from_position = from.first->position - ((from.first->position - to->position)).norm() * (from.first->radius + 10.0f);*/
-				/*		Vec2D<float> to_position = to->position - ((to->position - from.first->position)).norm() * (to->radius + 10.0f);*/
-				/*		DrawLine(from_position.x, from_position.y, to_position.x, to_position.y, (Color){229, 181, 103, 255});*/
-				/*	}*/
-				/*}*/
+				cm.draw();
 
-				for( auto& s : signals){
+				for(auto& s : signals){
 					s.direction = s.next->position - s.position;
 					if(s.position.dist(&s.next->position) < s.speed * 1.5) {
-						if(s.next->connections.size() > 0) {
-							s.next = s.next->get_next();
+						Node* n = cm.next(s.next);							
+						if(n != s.next && n != nullptr) {
+							s.next = n;
 							midi_out.send_message(libremidi::channel_events::control_change(2, 10, 50));
 						}
 					}