Improve code formatting

The scripts were streamlined using more or less the following conventions:
 - space after a comma in lists of arguments
 - spaces around weak operators (+, -), no spaces around strong operators (*, /)
 - spaces around comparison operators and compound assignment operators
 - space after a comment start (#)
 - removed trailing spaces or tabs, apart from those that delimit the function indentation level (those could be removed too but since they are added automatically by the editor when typing code, keeping them for now)
 - function blocks separate by two newlines
 - comment sentences start with an upper-case letter

1 files changed, 39 insertions, 44 deletions

diff --git a/demos/2d/pong/pong.gd b/demos/2d/pong/pong.gd
index cf6003c659..b31e3c3d71 100644
--- a/demos/2d/pong/pong.gd
+++ b/demos/2d/pong/pong.gd
@@ -1,73 +1,68 @@
 
 extends Node2D
 
-#member variables here, example:
-#var a=2
-#var b="textvar"
+# Member variables
 const INITIAL_BALL_SPEED = 80
 var ball_speed = INITIAL_BALL_SPEED
-var screen_size = Vector2(640,400)
-#default ball direction
-var direction = Vector2(-1,0)
-var pad_size = Vector2(8,32)
+var screen_size = Vector2(640, 400)
+
+# Default ball direction
+var direction = Vector2(-1, 0)
+var pad_size = Vector2(8, 32)
 const PAD_SPEED = 150
 
 
 func _process(delta):
-
-
-	#get ball position and pad rectangles
+	# Get ball position and pad rectangles
 	var ball_pos = get_node("ball").get_pos()
-	var left_rect = Rect2( get_node("left").get_pos() - pad_size*0.5, pad_size )
-	var right_rect = Rect2( get_node("right").get_pos() - pad_size*0.5, pad_size )
+	var left_rect = Rect2(get_node("left").get_pos() - pad_size*0.5, pad_size)
+	var right_rect = Rect2(get_node("right").get_pos() - pad_size*0.5, pad_size)
 	
-	#integrate new ball postion
-	ball_pos+=direction*ball_speed*delta
+	# Integrate new ball postion
+	ball_pos += direction*ball_speed*delta
 	
-	#flip when touching roof or floor
-	if ( (ball_pos.y<0 and direction.y <0) or (ball_pos.y>screen_size.y and direction.y>0)):
+	# Flip when touching roof or floor
+	if ((ball_pos.y < 0 and direction.y < 0) or (ball_pos.y > screen_size.y and direction.y > 0)):
 		direction.y = -direction.y
-		
-	#flip, change direction and increase speed when touching pads	
-	if ( (left_rect.has_point(ball_pos) and direction.x < 0) or (right_rect.has_point(ball_pos) and direction.x > 0)):
-		direction.x=-direction.x
-		ball_speed*=1.1
-		direction.y=randf()*2.0-1
+	
+	# Flip, change direction and increase speed when touching pads
+	if ((left_rect.has_point(ball_pos) and direction.x < 0) or (right_rect.has_point(ball_pos) and direction.x > 0)):
+		direction.x = -direction.x
+		ball_speed *= 1.1
+		direction.y = randf()*2.0 - 1
 		direction = direction.normalized()
-
-	#check gameover
-	if (ball_pos.x<0 or ball_pos.x>screen_size.x):
-		ball_pos=screen_size*0.5
-		ball_speed=INITIAL_BALL_SPEED
-		direction=Vector2(-1,0)
-			
-						
+	
+	# Check gameover
+	if (ball_pos.x < 0 or ball_pos.x > screen_size.x):
+		ball_pos = screen_size*0.5
+		ball_speed = INITIAL_BALL_SPEED
+		direction = Vector2(-1, 0)
+	
 	get_node("ball").set_pos(ball_pos)
-
-	#move left pad
+	
+	# Move left pad
 	var left_pos = get_node("left").get_pos()
 	
 	if (left_pos.y > 0 and Input.is_action_pressed("left_move_up")):
-		left_pos.y+=-PAD_SPEED*delta
+		left_pos.y += -PAD_SPEED*delta
 	if (left_pos.y < screen_size.y and Input.is_action_pressed("left_move_down")):
-		left_pos.y+=PAD_SPEED*delta
-		
+		left_pos.y += PAD_SPEED*delta
+	
 	get_node("left").set_pos(left_pos)
-		
-	#move right pad	
+	
+	# Move right pad
 	var right_pos = get_node("right").get_pos()
 	
 	if (right_pos.y > 0 and Input.is_action_pressed("right_move_up")):
-		right_pos.y+=-PAD_SPEED*delta
+		right_pos.y += -PAD_SPEED*delta
 	if (right_pos.y < screen_size.y and Input.is_action_pressed("right_move_down")):
-		right_pos.y+=PAD_SPEED*delta
-		
-	get_node("right").set_pos(right_pos)
+		right_pos.y += PAD_SPEED*delta
 	
-	 
+	get_node("right").set_pos(right_pos)
+
 
 func _ready():
-	screen_size = get_viewport_rect().size #get actual size
+	# Initalization here
+	screen_size = get_viewport_rect().size # Get actual size
 	pad_size = get_node("left").get_texture().get_size()
 	set_process(true)
-