Add help text to debug menu

godot_ship/scenes/Debug Menu.tscn

@@ -48,6 +48,7 @@ placeholder_text = "By your command."
 caret_blink = true
 script = ExtResource( 3 )
 
-[connection signal="clear_line" from="." to="debug_canvas/VBoxContainer/LineEdit" method="_on_Debug_clear_line"]
+[connection signal="clear_in" from="." to="debug_canvas/VBoxContainer/LineEdit" method="_on_Debug_clear_in"]
+[connection signal="clear_out" from="." to="debug_canvas/VBoxContainer/TextEdit" method="_on_Debug_clear_out"]
 [connection signal="print_text" from="." to="debug_canvas/VBoxContainer/TextEdit" method="_on_Debug_print_text"]
 [connection signal="text_entered" from="debug_canvas/VBoxContainer/LineEdit" to="." method="_on_LineEdit_text_entered"]

godot_ship/script/debug/In.gd

@@ -5,5 +5,5 @@ extends LineEdit
 # var a = 2
 # var b = "text"
 
-func _on_Debug_clear_line():
+func _on_Debug_clear_in():
 	clear()

godot_ship/script/debug/LineEdit.gd

@@ -1,9 +0,0 @@
-extends LineEdit
-
-
-# Declare member variables here. Examples:
-# var a = 2
-# var b = "text"
-
-func _on_Debug_clear_line():
-	clear()

godot_ship/script/debug/Out.gd

@@ -8,3 +8,9 @@ func _ready():
 
 func _on_Debug_print_text(text):
 	insert_text_at_cursor(text)
+
+
+func _on_Debug_clear_out():
+	cursor_set_line(0)
+	cursor_set_column(0)
+	text = "";

godot_ship/script/debug/debug_menu.gd

@@ -16,7 +16,8 @@ var menu_hidden = Transform2D(Vector2(1,0), Vector2(0,1), Vector2(0,-170))
 var menu_active = Transform2D(Vector2(1,0), Vector2(0,1), Vector2(0,   0))
 
 # signals
-signal clear_line
+signal clear_in
+signal clear_out
 signal print_text(text)
 
 # Called when the node enters the scene tree for the first time.
@@ -43,36 +44,112 @@ func _input(event):
 		debug_active = !debug_active;
 
 func _on_LineEdit_text_entered(line):
-	emit_signal("clear_line")
+	emit_signal("clear_in")
 	debug_print_line("")
 	var command = line.split(' ', true, 1)
-	if command.size() > 0:
 	match command[0]:
-			"start":
-				if command.size() > 1:
-					MessageBus.emit_signal("change_scene", command[1])
-					debug_print_line("start '" + command[1] + "'\n".c_unescape())
-				else:
-					debug_print_line("Usage: start scene")
-			"kill":
-				if command.size() > 1 and command[1] != "Debug":
-					MessageBus.emit_signal("kill_scene", command[1])
-					debug_print_line("kill '" + command[1] + "'\n".c_unescape())
-				else:
-					debug_print_line("Usage: kill scene")
-			"restart":
-				MessageBus.emit_signal("return_to_title")
-			"print":
-				if command.size() > 1:
-					debug_print_line(command[1].c_unescape())
-			"raw_emit":
-				var mbus_signal = command[1].split(' ', true, 1)
-				match mbus_signal.size():
-					2: MessageBus.emit_signal(mbus_signal[0], mbus_signal[1])
-					1: MessageBus.emit_signal(mbus_signal[0])
-					0: debug_print_line( "Usage: raw_emit signal [value]\n")
+		"start", "s":
+				command_start(command)
+		"stop", "kill", "k":
+			command_stop(command)
+		"list", "ls", "l":
+			command_list(command)
+		"restart", "killall":
+			command_restart(command)
+		"print", "p":
+			command_print(command)
+		"raw_emit", "emit", "r", "e": # Send a signal over the MessageBus
+			command_emit(command)
+		"clear","cls": # Clear the output
+			command_clear(command)
+		"help", "h":
+			command_help(command)
 		_:
-				debug_print_line("BY YOUR COMMAND.\n")
+			debug_print_line("Command not recognized.\n")
 
 func debug_print_line(string):
 	emit_signal("print_text", string.c_unescape())
+
+# Commands
+
+#   start: Loads scene from res://scenes/*.tscn by filename, and starts it
+func command_start (command):
+	if command.size() > 1:
+		MessageBus.emit_signal("start_tcsn", command[1])
+		debug_print_line("start '" + command[1] + "'\n")
+	else:
+		debug_print_line("Usage: start scene")
+
+#   stop: Stops scene by name of root node.
+func command_stop (command):
+	if command.size() > 1 and command[1] != "Debug":
+		MessageBus.emit_signal("kill_scene", command[1])
+		debug_print_line("kill '" + command[1] + "'\n")
+	else:
+		debug_print_line("Usage: kill scene")
+
+#   list: Lists names of active scenes (children of Root)
+func command_list (command):
+	debug_print_line("list: ")
+	MessageBus.emit_signal("list_scenes")
+
+#   restart: Kills the current tree and replants Root
+func command_restart (command):
+	MessageBus.emit_signal("return_to_title")
+
+#   print: prints a message to the in-game debug console
+func command_print(command):
+	if command.size() > 1:
+		debug_print_line(command[1] + "\n")
+
+#   emit: emits a message onto the MessageBus (!Extremely Danger!)
+func command_emit (command):
+	var mbus_signal = command[1].split(' ', true, 1)
+	match mbus_signal.size():
+		2:
+			debug_print_line("Message: " + String(mbus_signal) + "\n")
+			MessageBus.emit_signal(mbus_signal[0], mbus_signal[1])
+		1:
+			debug_print_line("Message: " + String(mbus_signal) + "\n")
+			MessageBus.emit_signal(mbus_signal[0])
+		0: debug_print_line( "Usage: raw_emit signal [value]\n")
+
+#   clear: clears the debug output
+func command_clear (command):
+	emit_signal("clear_out");
+
+#   help: Prints help dialogue
+func command_help (command):
+	if (command.size() == 1):
+		debug_print_line("Ship's Commander V0.1\n")
+		debug_print_line("Valid commands:\nstart, stop, list, restart, print, emit, clear, help\n")
+	else:
+		debug_print_line(command[1])
+		match command[1]:
+			"start", "s":
+				debug_print_line(" filename\nAliases: 'start', 's'\n")
+				debug_print_line("Loads and runs the scene filename.tscn\n")
+			"stop", "kill", "k":
+				debug_print_line(" scene\nAliases: 'stop', 'kill', 'k'\n")
+				debug_print_line("Kills an active scene whose name matches node.\n")
+			"list", "ls", "l":
+				debug_print_line("\nAliases: 'list', 'ls', 'l'\n")
+				debug_print_line("Lists the currently active scenes\n")
+			"restart", "killall":
+				debug_print_line("\nAliases: 'restart', 'killall'\n")
+				debug_print_line("Kills the current scene tree and plants a new Root.\n")
+			"print", "p":
+				debug_print_line(" string\nAliases: 'print', 'p'\n")
+				debug_print_line("Prints a string to the in-game debug console\n")
+			"raw_emit", "emit", "r", "e":
+				debug_print_line(" signal [message]\nAliases: 'raw_emit', 'emit', 'r', 'e'\n")
+				debug_print_line("Puts a message on the MessageBus without validation.\n")
+			"clear","cls":
+				debug_print_line("\nAliases: 'clear', 'cls'\n")
+				debug_print_line("Clears the debug output.\n")
+			"help", "h":
+				debug_print_line(" [command]\nAliases: 'help', 'h'\n")
+				debug_print_line("Prints information about a command.\n")
+			_:
+				debug_print_line(command[1] + "\nIsn't a valid command\n")
+	debug_print_line("\n")

godot_ship/script/game/Main.gd

@@ -11,8 +11,10 @@ var debug_enabled = true
 # Called when the node enters the scene tree for the first time.
 func _ready():
 	# Connect to signals
+	MessageBus.connect("start_tcsn", self, "_on_scene_start_by_name")
 	MessageBus.connect("change_scene", self, "_on_scene_start")
 	MessageBus.connect("kill_scene",   self, "_on_scene_kill")
+	MessageBus.connect("list_scenes",  self, "_on_scene_list")
 	MessageBus.connect("quit",         self, "_on_quit_request")
 	MessageBus.connect("return_to_title", self, "_on_title_request")
 	# Create the scenes
@@ -42,23 +44,32 @@ func _on_scene_start(scene):
 			add_child (title_screen.instance())
 			return true
 
+func _on_scene_start_by_name(scene):
+	var pack = load("res://scenes/" + scene + ".tscn");
+	add_child(pack.instance());
 
 # Kills all child nodes with name matching `scene`
 func _on_scene_kill(scene):
-	print ("_on_scene_kill(",scene,")")
 	var c = get_children()
 	for i in range (c.size()):
 		if c[i].name == scene:
 			c[i].queue_free()
+			MessageBus.emit_signal("print_console", String(c[i].name) + " killed.\n".c_unescape())
 			return true
 	return false
 
+func _on_scene_list():
+	var children = get_children()
+	var names = []
+	for i in range (children.size()):
+		names.append(children[i].name)
+	MessageBus.emit_signal("print_console", String(names) + "\n".c_unescape())
+
+
 # Quits
 func _on_quit_request():
-	print ("_on_quit_request()")
 	get_tree().quit()
 
 # Kills the current tree and replaces it with a new one
 func _on_title_request():
-	print ("_on_title_request()")
 	return get_tree().change_scene("res://scenes/Main.tscn")

godot_ship/script/game/Message Bus.gd

@@ -1,9 +1,16 @@
 extends Node
 
+# Ignore "unused signal" warnings in this class
+# warning-ignore-all:unused_signal
+
 # Ask for a scene change
 signal change_scene(scene_name)
+
+signal start_tcsn(scene_tcsn_name)
 # Ask to kill scene
 signal kill_scene(scene_name)
+# Ask to list active scenes
+signal list_scenes()
 # Ask to quit the game
 signal quit
 # Ask to return to title screen