first commit

HUD/BallCounter.gd

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+extends Sprite
+
+func _ready():
+	var _balls_connection = GameStats.connect("balls_changed", self, "set_balls")
+	set_balls()
+
+func set_balls():
+	if GameStats.balls_left >= 1:
+		var old_region_size = get_region_rect().size.y
+		var new_region = Rect2(0, 0, old_region_size * GameStats.balls_left - old_region_size, old_region_size)
+		set_region_rect(new_region)

HUD/HUD.tscn

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+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://Ball/sprite.png" type="Texture" id=1]
+[ext_resource path="res://HUD/BallCounter.gd" type="Script" id=2]
+
+[node name="HUD" type="CanvasLayer"]
+
+[node name="Control" type="Control" parent="."]
+margin_right = 40.0
+margin_bottom = 40.0
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="BallCounter" type="Sprite" parent="Control"]
+z_index = 100
+texture = ExtResource( 1 )
+centered = false
+region_enabled = true
+region_rect = Rect2( 0, 0, 16, 16 )
+script = ExtResource( 2 )