first version of EU AI Act game

Interact/dialogue/text_to_speech.gd

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+extends Node
+
+var voice_id
+
+func _ready():
+	var voices = DisplayServer.tts_get_voices_for_language("de")
+	if voices.size() > 0:
+		voice_id = "German+Robosoft6"
+	else:
+		voices = DisplayServer.tts_get_voices_for_language("en")
+		voice_id = voices[0]
+
+	# Connect with DialogueManager
+	DialogueManager.got_dialogue.connect(_on_dialogue)
+
+
+func _on_dialogue(line):
+	if voice_id == null:
+		return
+
+	# Stop earlier text (important!)
+	DisplayServer.tts_stop()
+
+	# Speak
+	DisplayServer.tts_speak(line.text, voice_id, 100)
+	
+func _stop_dialogue():
+	DisplayServer.tts_stop()