Initial commit

singletons/Dialogs.gd

@@ -0,0 +1,54 @@
+extends Node
+
+"""
+This is the Dialogs system. Any object can send text to it by doing Dialogs.show_dialog(text, speaker)
+
+Before using it 'dialog_box' should be set to some node that implements the following
+signal dialog_started
+signal dialog_ended
+func show_dialog(text, speaker)
+
+This script will connect to those signals and use them to set 'active' to true or false and forward them to other nodes, 
+so they can react to the dialog system being active(showing dialog) or inactive
+
+Calls to show_dialog will be forwarded to the dialog_box which is free to implement them in any way (showing the text on screen,
+using text to speech, etc)
+"""
+
+signal dialog_started
+signal dialog_ended
+
+var active = false
+
+var dialog_box = null: set = _set_dialog_box
+
+func show_dialog(text:String, speaker:String):
+	if is_instance_valid(dialog_box):
+		dialog_box.show_dialog(text, speaker)
+
+func _set_dialog_box(node):
+	if not node is Node:
+		push_error("provided node doesn't extend Node")
+		return
+	
+	dialog_box = node
+	
+	if dialog_box.get_script().has_script_signal("dialog_started"):
+		dialog_box.dialog_started.connect(_on_dialog_started)
+	else:
+		push_error("provided node doesn't implement dialog_started signal")
+	
+	if dialog_box.get_script().has_script_signal("dialog_ended"):
+		dialog_box.dialog_ended.connect(_on_dialog_ended)
+	else:
+		push_error("provided node doesn't implement dialog_started signal")
+	
+	pass
+	
+func _on_dialog_started():
+	active = true
+	emit_signal("dialog_started")
+	
+func _on_dialog_ended():
+	active = false
+	emit_signal("dialog_ended")