✨ Off screen marker

Scripts/Effects/OffScreenMarker.cs

@@ -0,0 +1,35 @@
+using Godot;
+
+namespace AceField.Scripts.Effects;
+
+public partial class OffScreenMarker : Node2D
+{
+	public override void _Process(double delta)
+	{
+		var canvas = GetCanvasTransform();
+		var topLeft = -canvas.Origin / canvas.Scale;
+		var size = GetViewportRect().Size / canvas.Scale;
+		SetMarkerPosition(new Rect2(topLeft, size));
+		SetMarkerRotation();
+	}
+
+	private void SetMarkerPosition(Rect2 bounds)
+	{
+		var sprite = GetNode<Sprite2D>("Sprite2D");
+		sprite.GlobalPosition = new Vector2(
+			Mathf.Clamp(GlobalPosition.X, bounds.Position.X, bounds.End.X),
+			Mathf.Clamp(GlobalPosition.Y, bounds.Position.Y, bounds.End.Y)
+		);
+
+		if (bounds.HasPoint(GlobalPosition)) Hide();
+		else Show();
+	}
+
+	private void SetMarkerRotation()
+	{
+		var sprite = GetNode<Sprite2D>("Sprite2D");
+		var angle = (GlobalPosition - sprite.GlobalPosition).Angle();
+		sprite.GlobalRotation = angle;
+		sprite.GetNode<Sprite2D>("Arrow").GlobalRotation = 0;
+	}
+}