two node snap for triangles

src/graph-item.h

@@ -13,9 +13,7 @@ namespace VISEQ::GRAPH {
 			GraphItem(const GraphItem& G) {
 				newId(-1);
 				graphItemType = G.graphItemType;
-				neighbors = G.neighbors;
 			}
-			std::vector<std::shared_ptr<GraphItem>> neighbors;
 			GraphItemType graphItemType;
 			
 			int id = 0;

src/graph-manager.h

@@ -246,20 +246,21 @@ namespace VISEQ::GRAPH {
 			}
 
 			void drawNodes(Vec2Df mouse_pos, Camera2D camera){
-				auto neighbors = nodes | RANGE_FILTER([](SPTR_Node n){ return !n->dragging && !n->selected;}) | std::ranges::to<VEC_SPTR_Node>();
 				float min_d = 480;
 				for(auto n : nodes){
 					if(n->dragging){
-						std::sort(neighbors.begin(), neighbors.end(), [n, mouse_pos](SPTR_Node na, SPTR_Node nb){ return na->position.dist(mouse_pos) < nb->position.dist(mouse_pos);});
-						if(neighbors.size() > 1){
-							min_d = neighbors.front()->position.dist(mouse_pos);
-							n->neighbor = neighbors.front();
-							DrawCircleLinesV(n->neighbor->position, 20.0f, VS_COLOR_PINK);
-							for(auto nb : neighbors){
+						auto neighbors_local = nodes | RANGE_FILTER([mouse_pos](SPTR_Node n){ return !n->dragging && !n->selected && n->position.dist(mouse_pos) < 960;}) | std::ranges::to<VEC_SPTR_Node>();
+						std::sort(neighbors_local.begin(), neighbors_local.end(), [n, mouse_pos](SPTR_Node na, SPTR_Node nb){ return na->position.dist(mouse_pos) < nb->position.dist(mouse_pos);});
+						if(!neighbors_local.empty()){
+							min_d = neighbors_local.front()->position.dist(mouse_pos);
+							DrawCircleLinesV(neighbors_local.front()->position, 22.0f, VS_COLOR_PINK);
+							n->neighbors = neighbors_local | std::ranges::views::filter([mouse_pos, min_d](SPTR_Node n){return abs(n->position.dist(mouse_pos) - min_d) < 5;}) | std::ranges::to<VEC_SPTR_Node>();
+							for(auto nb : n->neighbors){
+								DrawCircleLinesV(nb->position, 20.0f, VS_COLOR_RED);
 								float d = nb->position.dist(mouse_pos);
 								float dn = nb->position.dist(n->position);
 								if(d > 0 && d < min_d*1.5 && d < 960) {
-									std::string frac = MIDI::Fractions.at((int)Clamp(round(dn/60) - 1, 0, 31));
+									std::string frac = MIDI::Fractions.at(std::clamp<int>(round(dn/60) - 1, 0, 31));
 									Vector2 text_length = MeasureTextEx(GetFontDefault(), std::format("{:.1f}",dn).c_str(), 10.0f, 2.0f); 
 									Vector2 text_length_frac = MeasureTextEx(GetFontDefault(), frac.c_str(), 10.0f, 2.0f); 
 									
@@ -270,7 +271,7 @@ namespace VISEQ::GRAPH {
 
 									float rotation = Vector2Angle((Vector2){1,0}, (n->position - nb->position)) * RAD2DEG;
 									DrawTextPro(GetFontDefault(), std::format("{:.1f}",dn).c_str(), text_position, (Vector2){0,0}, rotation, 10.0f, 2.0f, VS_COLOR_PINK);
-									if(nb == neighbors.front() && IsKeyDown(KEY_LEFT_SHIFT)) DrawTextPro(GetFontDefault(), frac.c_str(), text_position_frac, (Vector2){0,0}, rotation, 10.0f, 2.0f, VS_COLOR_PINK);
+									if(IsKeyDown(KEY_LEFT_SHIFT)) DrawTextPro(GetFontDefault(), frac.c_str(), text_position_frac, (Vector2){0,0}, rotation, 10.0f, 2.0f, VS_COLOR_PINK);
 									Vec2Df n_position = n->position - ((n->position - nb->position)).norm() * 20.0f;
 									Vec2Df nb_position = nb->position - ((nb->position - n->position)).norm() * 20.0f;
 									DrawLineV(n_position, nb_position, VS_COLOR_PINK);

src/main.cpp

@@ -289,12 +289,30 @@ int main(){
 						dragNode->position.x = round((mouse_pos.x + dragNode->drag_offset.x) / app.settings.grid) * app.settings.grid;
 						dragNode->position.y = round((mouse_pos.y + dragNode->drag_offset.y) / app.settings.grid) * app.settings.grid;
 					} else if(IsKeyDown(KEY_LEFT_SHIFT)){
-						float steps = round((dragNode->neighbor->position.dist(mouse_pos)) / app.settings.grid) * app.settings.grid;
-						float pol_r = steps;
-						float pol_theta = Vector2Angle(Vec2Df{1,0},(mouse_pos - dragNode->neighbor->position));
+						float steps = round((dragNode->neighbors.front()->position.dist(mouse_pos)) / app.settings.grid) * app.settings.grid;
+						if(dragNode->neighbors.size() > 1){
+							Vec2Df dn1 = dragNode->neighbors[0]->position;
+							Vec2Df dn2 = dragNode->neighbors[1]->position;
+							Vec2Df v1_orth = dn1.center(dn2);
 							
+							if(dn1.x < dn2.x) std::swap(dn1,dn2);
+
+							float dist = dn1.dist(dn2);
+							float dist_orth = std::sqrt(std::pow(steps,2) - std::pow(dist/2,2));
+							
+							if(mouse_pos.y < v1_orth.y) dist_orth *= -1;
+							
+							Vec2Df v1_orth_t = v1_orth + (dn1-dn2).norm().orth() * dist_orth;
+							DrawLineV(dn1, dn2, VS_COLOR_RED);
+							DrawLineV(v1_orth, v1_orth_t, VS_COLOR_RED);
+							DrawCircleV(v1_orth, 3.0f, VS_COLOR_RED);
+							dragNode->position = v1_orth_t;
+						} else if(!dragNode->neighbors.empty()){
+							float pol_r = steps;
+							float pol_theta = Vector2Angle(Vec2Df{1,0},(mouse_pos - dragNode->neighbors.front()->position));
 							Vec2Df polar = VISEQ::VMATH::polarToCartesian(pol_r, pol_theta); 
-						dragNode->position = dragNode->neighbor->position + polar;
+							dragNode->position = dragNode->neighbors.front()->position + polar;
+						}
 					} else {
 						dragNode->position = mouse_pos + dragNode->drag_offset;
 					}

src/node.h

@@ -22,8 +22,7 @@ namespace VISEQ::GRAPH::NODES {
 
 		NodeType nodeType;
 	
-		std::shared_ptr<Node> neighbor;
-		
+		std::vector<std::shared_ptr<Node>> neighbors;
 		std::vector<std::shared_ptr<VISEQ::GRAPH::EDGES::Edge>> connections;
 
 		Distribution distributionMode = Distribution::GEOMETRIC;

src/state-manager.h

@@ -68,7 +68,7 @@ namespace VISEQ::APP {
 					}
 
 					new_node->copied = false;
-					new_node->selected = false;
+					new_node->selected = true;
 
 					for(auto c : copy_connections){
 						if(c->start == old_node) {

src/ui.h

@@ -103,8 +103,6 @@ namespace VISEQ::APP::UI{
 			GuiPanel((Rectangle){left,-30,280,(float)settings->height + 31}, "");
 			const int s_controls = 25;
 			
-
-
 		}
 
 		void drawPerNodeConfig(Camera2D *camera){