Improve the screen capture demo

viewport/screen_capture/project.godot

@@ -16,7 +16,7 @@ _global_script_class_icons={
 [application]
 
 config/name="Screen Capture"
-run/main_scene="res://capture_screen.tscn"
+run/main_scene="res://screen_capture.tscn"
 config/icon="res://icon.png"
 
 [debug]

viewport/screen_capture/screen_capture.gd

@@ -1,26 +1,22 @@
+extends Node
 
-extends Control
+onready var captured_image = $CapturedImage
 
-
-func _ready():
-	get_node("Button").connect("pressed", self, "_on_button_pressed");
-
-
-func _on_button_pressed():
+func _on_CaptureButton_pressed():
 	get_viewport().set_clear_mode(Viewport.CLEAR_MODE_ONLY_NEXT_FRAME)
-	# Let two frames pass to make sure the screen was captured
+	# Let two frames pass to make sure the screen was captured.
 	yield(get_tree(), "idle_frame")
 	yield(get_tree(), "idle_frame")
 
-	# Retrieve the captured image
+	# Retrieve the captured image.
 	var img = get_viewport().get_texture().get_data()
 
-	# Flip it on the y-axis (because it's flipped)
+	# Flip it on the y-axis (because it's flipped).
 	img.flip_y()
 
-	# Create a texture for it
+	# Create a texture for it.
 	var tex = ImageTexture.new()
 	tex.create_from_image(img)
 
-	# Set it to the capture node
-	get_node("capture").set_texture(tex)
+	# Set the texture to the captured image node.
+	captured_image.set_texture(tex)

viewport/screen_capture/capture_screen.tscn → viewport/screen_capture/screen_capture.tscn

@@ -3,12 +3,12 @@
 [ext_resource path="res://screen_capture.gd" type="Script" id=1]
 [ext_resource path="res://mountains.png" type="Texture" id=2]
 
-[node name="Control" type="Control"]
+[node name="ScreenCapture" type="Control"]
 margin_right = 40.0
 margin_bottom = 40.0
 script = ExtResource( 1 )
 
-[node name="BG" type="TextureRect" parent="."]
+[node name="Background" type="TextureRect" parent="."]
 anchor_right = 1.0
 anchor_bottom = 1.0
 margin_right = 986.0
@@ -18,7 +18,7 @@ grow_vertical = 0
 texture = ExtResource( 2 )
 expand = true
 
-[node name="capture" type="TextureRect" parent="."]
+[node name="CapturedImage" type="TextureRect" parent="."]
 anchor_right = 1.0
 anchor_bottom = 1.0
 margin_right = 2013.0
@@ -29,9 +29,10 @@ rect_scale = Vector2( 0.5, 0.5 )
 expand = true
 stretch_mode = 4
 
-[node name="Button" type="Button" parent="."]
+[node name="CaptureButton" type="Button" parent="."]
 margin_left = 48.0
 margin_top = 53.0
 margin_right = 188.0
 margin_bottom = 113.0
 text = "Capture screen"
+[connection signal="pressed" from="CaptureButton" to="." method="_on_CaptureButton_pressed"]