node connecting works

Scenes/Nodes/Node Row.tscn

@@ -4,12 +4,11 @@
 
 [node name="Node Row" type="HBoxContainer"]
 
-[node name="Input" type="Button" parent="."]
+[node name="Input" type="Button" parent="." groups=["Outputs"]]
 layout_mode = 2
 mouse_default_cursor_shape = 2
 text = "◉"
 script = ExtResource("1_fygh4")
-isOutput = true
 
 [node name="Label" type="Label" parent="."]
 layout_mode = 2
@@ -18,12 +17,12 @@ mouse_filter = 1
 text = "Testtesttesttesttest"
 clip_text = true
 
-[node name="Output" type="Button" parent="."]
+[node name="Output" type="Button" parent="." groups=["Outputs"]]
 layout_mode = 2
 mouse_default_cursor_shape = 2
 text = "◉"
 script = ExtResource("1_fygh4")
-isOutput = true
 
-[connection signal="pressed" from="Input" to="Input" method="_start_drag"]
-[connection signal="pressed" from="Output" to="Output" method="_start_drag"]
+[connection signal="mouse_entered" from="Input" to="Input" method="mouse_enter"]
+[connection signal="mouse_exited" from="Input" to="Input" method="mouse_exit"]
+[connection signal="button_down" from="Output" to="Output" method="_start_drag"]

Scripts/GL_Node.gd

@@ -33,8 +33,12 @@ func _update_visuals():
 			var nodeRow = load("res://Scenes/Nodes/Node Row.tscn").instantiate()
 			holder.add_child(nodeRow)
 			(nodeRow.get_node("Label") as Label).text = str(key)
-			(nodeRow.get_node("Input") as GL_Node_Point).valueName = str(key)
-			(nodeRow.get_node("Output") as GL_Node_Point).valueName = str(key)
+			var input = nodeRow.get_node("Input") as GL_Node_Point
+			var output = nodeRow.get_node("Output") as GL_Node_Point
+			input.valueName = str(key)
+			input.mainNode = self
+			output.valueName = str(key)
+			output.mainNode = self
 			_set_inout_type(nodeRow.get_node("Input") as Button,rows[key]["input"])
 			_set_inout_type(nodeRow.get_node("Output") as Button,rows[key]["output"])
 
@@ -56,7 +60,7 @@ func _set_title(name:String):
 	(get_node("Holder").get_node("Title") as Label).text = name
 
 func _create_row(name:String,input,output):
-	rows[name] = {"input": input, "output": output}
+	rows[name] = {"input": input, "output": output, "connections": []}
 	_update_visuals()
 
 func _recieve_input(inputName:String,value):
@@ -74,6 +78,34 @@ func _send_input(output_name: String, value):
 		if target and input_name:
 			target._recieve_input(input_name, value)
 
+func _create_connection(target:GL_Node,input_name:String,output_name:String):
+	if not rows.has(output_name):
+		return
+		
+	var item = target.rows.get(input_name, null)
+	if item == null:
+		return
+		
+	if typeof(rows[output_name].get("output", null)) != typeof(target.rows[input_name].get("input",null)):
+		print("Type mismatch: cannot connect " + output_name + " to " + target.name)
+		return
+	
+	var thenew = {
+		"target": target,
+		"input_name": input_name
+	}
+	
+	var connections = rows[output_name].get("connections",[])
+	
+	for connection in connections:
+		if connection.target == thenew.target and connection.input_name == thenew.input_name:
+			print("Connection already exists: " + output_name + " to " + target.name)
+			return
+	
+	connections.append(thenew)
+	rows[output_name]["connections"] = connections
+	
+	
 func mouse_enter():
 	canDrag = true
 func mouse_exit():

Scripts/GL_Node_Point.gd

@@ -2,40 +2,56 @@ extends Button
 class_name GL_Node_Point
 
 var mainNode : GL_Node
-@export var isOutput:bool
-
 var valueName:String
 var dragging:bool
-
 var previewLine:Line2D = null
-
-func _ready():
-	set_process(true)
+var mouseInside:bool
+var lastToDrag:bool
 
 func _process(delta):
 	if dragging:
 		if previewLine == null:
 			previewLine = Line2D.new()
-			previewLine.width = 10
+			previewLine.position = Vector2.ZERO
+			add_child(previewLine)
+			previewLine.width = 5
 			previewLine.default_color = Color.WHITE
 			previewLine.add_point(Vector2.ZERO)
 			previewLine.add_point(Vector2.ZERO)
-		previewLine.points[0] = position
-		previewLine.points[1] = get_viewport().get_mouse_position()
+			previewLine.points[0] = Vector2(size.x / 2, size.y / 2)
+			previewLine.begin_cap_mode = Line2D.LINE_CAP_ROUND
+			previewLine.end_cap_mode = Line2D.LINE_CAP_ROUND
+		previewLine.points[1] = get_viewport().get_mouse_position() - previewLine.global_position
+
 
 func _input(event):
 	if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT:
 		if !event.pressed:
 			_finish_drag()
+		if event.pressed && !dragging:
+			lastToDrag = false
 
 func _start_drag():
-	if (not isOutput):
-		return 
-		
 	dragging = true
+	lastToDrag = true
+	
+func mouse_enter():
+	mouseInside = true
+	
+func mouse_exit():
+	mouseInside = false 
 
 func _finish_drag():
-	if not dragging:
-		return
-
+	if dragging:
+		previewLine.queue_free()
 		dragging = false
+	elif mouseInside:
+		print("YESSS")
+		for node in get_tree().get_nodes_in_group("Outputs"):
+			if node is GL_Node_Point:
+				node._node_connect(mainNode,valueName)
+
+func _node_connect(node:GL_Node,inputValue:String):
+	if not lastToDrag:
+		return
+	mainNode._create_connection(node,inputValue,valueName)