Added Lua VoiceModule to NPCs (#2932)

data/npc/lib/npcsystem/modules.lua

@@ -1203,4 +1203,50 @@ if Modules == nil then
 		end
 		return true
 	end
+
+	VoiceModule = {
+		voices = nil,
+		voiceCount = 0,
+		lastVoice = 0,
+		timeout = nil,
+		chance = nil
+	}
+
+	-- VoiceModule: makes the NPC say/yell random lines from a table, with delay, chance and yell optional 
+	function VoiceModule:new(voices, timeout, chance)
+		local obj = {}
+		setmetatable(obj, self)
+		self.__index = self
+
+		obj.voices = voices
+		for i = 1, #obj.voices do
+			local voice = obj.voices[i]
+			if voice.yell then
+				voice.yell = nil
+				voice.talktype = TALKTYPE_YELL
+			else
+				voice.talktype = TALKTYPE_SAY
+			end
+		end
+
+		obj.voiceCount = #voices
+		obj.timeout = timeout or 10
+		obj.chance = chance or 10
+		return obj
+	end
+
+	function VoiceModule:init(handler)
+		return true
+	end
+
+	function VoiceModule:callbackOnThink()
+		if self.lastVoice < os.time() then
+			self.lastVoice = os.time() + self.timeout
+			if math.random(100) <= self.chance  then
+				local voice = self.voices[math.random(self.voiceCount)]
+				Npc():say(voice.text, voice.talktype)
+			end
+		end
+		return true
+	end
 end

data/npc/scripts/runes.lua

@@ -7,6 +7,9 @@ function onCreatureDisappear(cid)           npcHandler:onCreatureDisappear(cid)
 function onCreatureSay(cid, type, msg)      npcHandler:onCreatureSay(cid, type, msg)    end
 function onThink()                          npcHandler:onThink()                        end
 
+local voices = { {text = "Runes, wands, rods, health and mana potions! Have a look!"} }
+npcHandler:addModule(VoiceModule:new(voices))
+
 local shopModule = ShopModule:new()
 npcHandler:addModule(shopModule)