distance to closest node displayed, timing problems with midi notes being sent 1 to 3ms too early, or too late

src/signal-manager.h

@@ -71,22 +71,24 @@ class SignalManager{
 		}
 
 		void updateSignals(){
-			auto last = std::chrono::steady_clock::now();
+			auto last = std::chrono::high_resolution_clock::now();
 			while(loop){
-				std::chrono::duration<double, std::micro> diff = std::chrono::steady_clock::now() - last;
-				if(diff.count() > 500){
+				std::chrono::duration<double, std::micro> diff = std::chrono::high_resolution_clock::now() - last;
+				if((int)diff.count() >= 250){
 					mutex->lock();
 					if(play){
 						for(auto& s : signals){
 							s.direction = (nm->nodes[s.next].position - s.position).norm();
 							s.update(diff.count());
-							if(s.position.dist(&nm->nodes[s.next].position) < 1.0f) {
+							if(s.position.dist(&nm->nodes[s.next].position) < 0.6f) {
 								int n = cm->next(s.next, s.last);
 								nm->nodes[s.next].trigger();
 
 								if(n != s.next && n != -1) {
 									for(auto &m : nm->nodes[s.next].midi_outs){
-										if(m.second.enabled) midi.note(m.second.i, nm->nodes[s.next].midi_channel, nm->nodes[s.next].midi_note, nm->nodes[s.next].midi_velocity, nm->nodes[s.next].midi_gate);	
+										if(m.second.enabled) {
+											midi.note(m.second.i, nm->nodes[s.next].midi_channel, nm->nodes[s.next].midi_note, nm->nodes[s.next].midi_velocity, nm->nodes[s.next].midi_gate);	
+										}
 									}
 									s.last = s.next;
 									s.next = n;
@@ -96,14 +98,16 @@ class SignalManager{
 					}
 					midi.update();
 					mutex->unlock();
-				last = std::chrono::steady_clock::now();
+					last = std::chrono::high_resolution_clock::now();
 				}
 			}
 		}
 
 		void drawSignals(Vec2D<float> *mouse_pos, Camera2D *camera){
 			for(auto& s : signals){
+				mutex->lock();
 				s.draw(mouse_pos, camera);
+				mutex->unlock();
 			}
 		}