diff --git a/lib/debug_draw.gd b/lib/debug_draw.gd
new file mode 100644
index 00000000..c7bbdea0
--- /dev/null
+++ b/lib/debug_draw.gd
@@ -0,0 +1,20 @@
+extends Node2D
+class_name DebugDraw
+
+var points: PackedVector2Array
+
+func _draw() -> void:
+	points = Globals.get_exception_points()
+	var i := 0
+	while i < points.size():
+		var slice := points.slice(i, i+4)
+		draw_line(slice[0], slice[1], Color.GREEN, 1.0, true)
+		draw_line(slice[1], slice[2], Color.GREEN, 1.0, true)
+		draw_line(slice[2], slice[3], Color.GREEN, 1.0, true)
+		draw_line(slice[3], slice[0], Color.GREEN, 1.0, true)
+		i += 4
+
+func _process(_d: float) -> void:
+	var current := Globals.get_exception_points()
+	if current != points:
+		queue_redraw()
diff --git a/lib/debug_draw.gd.uid b/lib/debug_draw.gd.uid
new file mode 100644
index 00000000..b49370da
--- /dev/null
+++ b/lib/debug_draw.gd.uid
@@ -0,0 +1 @@
+uid://dnmdryl8p663n