Improve menuing, and convert ships to RigidBody2D for accurate positioning.

godot_ship/script/debug/In.gd

@@ -1,9 +1,4 @@
 extends LineEdit
 
-
-# Declare member variables here. Examples:
-# var a = 2
-# var b = "text"
-
 func _on_Debug_clear_in():
 	clear()

godot_ship/script/debug/Out.gd

@@ -3,7 +3,7 @@ extends TextEdit
 # Called when the node enters the scene tree for the first time.
 func _ready():
 	var _errno = MessageBus.connect("print_console", self, "_on_Debug_print_text")
-	pass # Replace with function body.
+	grab_focus()
 
 
 func _on_Debug_print_text(text):

godot_ship/script/debug/debug_menu.gd

@@ -48,7 +48,7 @@ func _input(event):
 		# open debug menu
 		debug_active = !debug_active;
 		# Hand the keyboard focus to the next valid focus
-		if (!debug_active): find_next_valid_focus().grab_focus()
+		if (!debug_active) && find_next_valid_focus(): find_next_valid_focus().grab_focus()
 
 func _on_LineEdit_text_entered(line):
 	emit_signal("clear_in")