Added ConnectionCable

game/objects/interactive/connection_cable.gd

@@ -0,0 +1,31 @@
+class_name ConnectionCable
+extends Line2D
+
+
+const SHADER_GLOW_INTERVAL = "glow_interval"
+const SHADER_GLOW_RADIUS = "glow_radius"
+const SHADER_TRAVEL_TIME = "travel_time"
+
+const TRAVEL_SPEED = 100.0
+const GLOW_INTERVAL = 100.0
+
+
+func _ready() -> void:
+	var length := _get_length()
+	var glow_interval := 1.0 / maxi(1, round(length/GLOW_INTERVAL))
+	var glow_radius := 0.5/length
+	var travel_time := length/TRAVEL_SPEED
+	
+	material.set_shader_parameter(SHADER_GLOW_INTERVAL, glow_interval)
+	material.set_shader_parameter(SHADER_GLOW_RADIUS, glow_radius)
+	material.set_shader_parameter(SHADER_TRAVEL_TIME, travel_time)
+
+
+func _get_length() -> float:
+	if points.size() < 2:
+		return 0.0
+	
+	var length := 0.0
+	for i in range(points.size() - 1):
+		length += points[i].distance_to(points[i + 1])
+	return length

game/objects/interactive/connection_cable.gd.uid

@@ -0,0 +1 @@
+uid://c1r1ny6xdedil

game/objects/interactive/connection_cable.tscn

@@ -0,0 +1,10 @@
+[gd_scene format=3 uid="uid://dq3080605jqta"]
+
+[ext_resource type="Script" uid="uid://c1r1ny6xdedil" path="res://game/objects/interactive/connection_cable.gd" id="1_43n88"]
+[ext_resource type="Material" uid="uid://dbcb2x1xbq37g" path="res://game/materials/connection_cable.tres" id="1_k2dc5"]
+
+[node name="ConnectionCable" type="Line2D" unique_id=1234500644]
+material = ExtResource("1_k2dc5")
+width = 2.0
+texture_mode = 2
+script = ExtResource("1_43n88")