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+-- Chat example
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+-- This sample demonstrates:
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+-- - Starting up a network server or connecting to it
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+-- - Implementing simple chat functionality with network messages
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+
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+require "LuaScripts/Utilities/Sample"
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+
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+local natServerAddress = nil
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+local natServerPort = nil
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+local saveNatSettingsButton = nil
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+
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+local startServerButton = nil
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+
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+local serverGuid = nil
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+local connectButton = nil
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+
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+local logHistory = {}
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+local logHistoryText = nil
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+
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+local guid = nil
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+
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+function Start()
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+ -- Execute the common startup for samples
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+ SampleStart()
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+
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+ -- Enable OS cursor
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+ input.mouseVisible = true
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+
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+ -- Create the user interface
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+ CreateUI()
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+
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+ -- Set the mouse mode to use in the sample
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+ SampleInitMouseMode(MM_FREE)
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+
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+ -- Subscribe to UI and network events
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+ SubscribeToEvents()
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+
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+ network:SetMode(PEER_TO_PEER);
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+end
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+
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+function CreateUI()
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+
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+ SetLogoVisible(true) -- We need the full rendering window
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+
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+ local uiStyle = cache:GetResource("XMLFile", "UI/DefaultStyle.xml")
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+ -- Set style to the UI root so that elements will inherit it
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+ ui.root.defaultStyle = uiStyle
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+
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+ local font = cache:GetResource("Font", "Fonts/Anonymous Pro.ttf")
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+ logHistoryText = ui.root:CreateChild("Text")
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+ logHistoryText:SetFont(font, 12)
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+ logHistoryText:SetPosition(20, 200);
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+
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+ local marginTop = 40
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+ CreateLabel("1. Run NAT server somewhere, enter NAT server info and press 'Save NAT settings'", IntVector2(20, marginTop-20));
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+ natServerAddress = CreateLineEdit("nat.frameskippers.com", 200, IntVector2(20, marginTop));
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+ natServerPort = CreateLineEdit("30123", 100, IntVector2(240, marginTop));
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+ saveNatSettingsButton = CreateButton("Save NAT settings", 160, IntVector2(360, marginTop));
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+
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+
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+ marginTop = 120;
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+ CreateLabel("2. Create server and give others your server GUID", IntVector2(20, marginTop-20));
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+ guid = CreateLineEdit("Your server GUID", 200, IntVector2(20, marginTop));
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+ startServerButton = CreateButton("Start session", 160, IntVector2(240, marginTop));
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+
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+
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+ marginTop = 200;
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+ CreateLabel("3. Input remote session GUID", IntVector2(20, marginTop-20));
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+ serverGuid = CreateLineEdit("Remote server GUID", 200, IntVector2(20, marginTop));
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+ connectButton = CreateButton("Join session", 160, IntVector2(240, marginTop));
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+
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+ local size = 20
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+ for i = 1, size do
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+ table.insert(logHistory, "")
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+ end
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+
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+ -- No viewports or scene is defined. However, the default zone's fog color controls the fill color
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+ renderer.defaultZone.fogColor = Color(0.0, 0.0, 0.1)
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+end
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+
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+function SubscribeToEvents()
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+ SubscribeToEvent("ServerConnected", "HandleServerConnected");
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+ SubscribeToEvent("ServerDisconnected", "HandleServerDisconnected");
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+ SubscribeToEvent("ConnectFailed", "HandleConnectFailed");
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+
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+ -- NAT server connection related events
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+ SubscribeToEvent("NetworkNatMasterConnectionFailed", "HandleNatConnectionFailed");
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+ SubscribeToEvent("NetworkNatMasterConnectionSucceeded", "HandleNatConnectionSucceeded");
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+
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+ -- NAT punchtrough request events
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+ SubscribeToEvent("NetworkNatPunchtroughSucceeded", "HandleNatPunchtroughSucceeded");
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+ SubscribeToEvent("NetworkNatPunchtroughFailed", "HandleNatPunchtroughFailed");
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+
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+ SubscribeToEvent("ClientConnected", "HandleClientConnected");
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+ SubscribeToEvent("ClientDisconnected", "HandleClientDisconnected");
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+
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+ -- Subscribe to UI element events
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+ SubscribeToEvent(saveNatSettingsButton, "Released", "HandleSaveNatSettings");
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+ SubscribeToEvent(startServerButton, "Released", "HandleStartServer");
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+ SubscribeToEvent(connectButton, "Released", "HandleConnect");
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+end
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+
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+function CreateButton(text, width, position)
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+ local font = cache:GetResource("Font", "Fonts/Anonymous Pro.ttf")
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+
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+ local button = ui.root:CreateChild("Button")
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+ button:SetStyleAuto()
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+ button:SetFixedWidth(width)
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+ button:SetFixedHeight(30)
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+ button:SetPosition(position.x, position.y)
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+
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+ local buttonText = button:CreateChild("Text")
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+ buttonText:SetFont(font, 12)
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+ buttonText:SetAlignment(HA_CENTER, VA_CENTER)
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+ buttonText.text = text
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+
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+ return button
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+end
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+
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+function CreateLabel(text, position)
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+ local font = cache:GetResource("Font", "Fonts/Anonymous Pro.ttf")
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+ local label = ui.root:CreateChild("Text")
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+ label:SetFont(font, 12)
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+ label.color = Color(0.0, 1.0, 0.0)
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+ label:SetPosition(position.x, position.y)
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+ label.text = text
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+end
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+
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+function CreateLineEdit(placeholder, width, position)
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+ local textEdit = ui.root:CreateChild("LineEdit")
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+ textEdit:SetStyleAuto()
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+ textEdit:SetFixedWidth(width)
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+ textEdit:SetFixedHeight(30)
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+ textEdit.text = placeholder
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+ textEdit:SetPosition(position.x, position.y)
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+ return textEdit
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+end
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+
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+function ShowLogMessage(row)
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+ table.remove(logHistory, 1)
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+ table.insert(logHistory, row)
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+
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+ -- Concatenate all the rows in history
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+ local allRows = ""
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+ for i, r in ipairs(logHistory) do
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+ allRows = allRows .. r .. "\n"
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+ end
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+ logHistoryText.text = allRows
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+end
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+
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+
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+function HandleLogMessage(eventType, eventData)
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+ ShowChatText(eventData["Message"]:GetString())
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+end
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+
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+function HandleSaveNatSettings(eventType, eventData)
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+
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+ local address = natServerAddress.text
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+ local port = natServerPort.text
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+ -- Save NAT server configuration
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+ network:SetNATServerInfo(address, port);
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+ ShowLogMessage("Saving NAT settings: " .. address .. ":" .. port);
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+end
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+
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+function HandleServerConnected(eventType, eventData)
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+
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+end
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+
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+function HandleConnect(eventType, eventData)
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+ local address = textEdit.text
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+ if address == "" then
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+ address = "localhost" -- Use localhost to connect if nothing else specified
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+ end
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+
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+ -- Empty the text edit after reading the address to connect to
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+ textEdit.text = ""
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+
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+ -- Connect to server, do not specify a client scene as we are not using scene replication, just messages.
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+ -- At connect time we could also send identity parameters (such as username) in a VariantMap, but in this
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+ -- case we skip it for simplicity
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+ network:Connect(address, CHAT_SERVER_PORT, nil)
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+
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+end
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+
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+function HandleServerConnected(eventType, eventData)
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+ ShowLogMessage("Client: Server connected!");
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+end
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+
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+function HandleServerDisconnected(eventType, eventData)
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+ ShowLogMessage("Client: Server disconnected!");
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+end
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+
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+function HandleConnectFailed(eventType, eventData)
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+ ShowLogMessage("Client: Connection failed!");
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+end
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+
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+function HandleStartServer(eventType, eventData)
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+ network:StartSession(scene_);
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+ ShowLogMessage("Server: P2P Session started: ");
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+
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+ -- Output our assigned GUID which others will use to connect to our server
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+ guid.text = network:GetGUID();
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+end
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+
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+function HandleConnect(eventType, eventData)
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+ local userData = VariantMap()
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+ userData["Name"] = "Urho3D";
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+
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+ -- Attempt connecting to server using custom GUID, Scene = null as a second parameter and user identity is passed as third parameter
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+ network:JoinSession(serverGuid.text, scene_, userData);
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+ ShowLogMessage("Client: Joining P2P session: " + serverGuid.text);
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+end
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+
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+function HandleNatConnectionFailed(eventType, eventData)
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+ ShowLogMessage("Connection to NAT master server failed!");
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+end
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+
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+function HandleNatConnectionSucceeded(eventType, eventData)
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+ ShowLogMessage("Connection to NAT master server succeeded!");
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+end
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+
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+function HandleNatPunchtroughSucceeded(eventType, eventData)
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+ ShowLogMessage("NAT punchtrough succeeded!");
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+end
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+
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+function HandleNatPunchtroughFailed(eventType, eventData)
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+ ShowLogMessage("NAT punchtrough failed!");
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+end
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+
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+function HandleClientConnected(eventType, eventData)
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+ ShowLogMessage("Server: Client connected!");
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+end
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+
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+function HandleClientDisconnected(eventType, eventData)
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+ ShowLogMessage("Server: Client disconnected!");
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+end
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+
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+-- Create XML patch instructions for screen joystick layout specific to this sample app
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+function GetScreenJoystickPatchString()
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+ return
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+ "<patch>" ..
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+ " <add sel=\"/element/element[./attribute[@name='Name' and @value='Button2']]\">" ..
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+ " <attribute name=\"Is Visible\" value=\"false\" />" ..
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+ " </add>" ..
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+ " <add sel=\"/element/element[./attribute[@name='Name' and @value='Hat0']]\">" ..
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+ " <attribute name=\"Is Visible\" value=\"false\" />" ..
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+ " </add>" ..
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+ "</patch>"
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+end
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Arnis Lielturks