16 files changed, 333 insertions, 24 deletions

diff --git a/assets/opensb/client.config.patch b/assets/opensb/client.config.patch
index 88bf328..e0d5687 100644
--- a/assets/opensb/client.config.patch
+++ b/assets/opensb/client.config.patch
@@ -1,4 +1,6 @@
 {
+  "universeScriptContexts" : { "opensb" : ["/scripts/universeClient/opensb.lua"] },
+
   // Disables scissoring and letterboxing on vanilla and modded warp cinematics
   "warpCinematicBase" : {
     "scissor" : false,
diff --git a/assets/opensb/interface/voicechat/indicator/back.png b/assets/opensb/interface/voicechat/indicator/back.png
new file mode 100644
index 0000000..869ed1c
--- /dev/null
+++ b/assets/opensb/interface/voicechat/indicator/back.png
diff --git a/assets/opensb/interface/voicechat/indicator/front.png b/assets/opensb/interface/voicechat/indicator/front.png
new file mode 100644
index 0000000..ff32e38
--- /dev/null
+++ b/assets/opensb/interface/voicechat/indicator/front.png
diff --git a/assets/opensb/interface/voicechat/indicator/front_muted.png b/assets/opensb/interface/voicechat/indicator/front_muted.png
new file mode 100644
index 0000000..be18587
--- /dev/null
+++ b/assets/opensb/interface/voicechat/indicator/front_muted.png
diff --git a/assets/opensb/scripts/universeClient/opensb.lua b/assets/opensb/scripts/universeClient/opensb.lua
new file mode 100644
index 0000000..c1b4dea
--- /dev/null
+++ b/assets/opensb/scripts/universeClient/opensb.lua
@@ -0,0 +1,29 @@
+submodules = {}
+
+require "/scripts/universeClient/opensb/voice_manager.lua"
+
+local submodules, type = submodules, type
+local function call(func, ...)
+	if type(func) == "function" then
+		return func(...)
+	end
+end
+
+function init(...)
+	script.setUpdateDelta(1)
+	for i, module in pairs(submodules) do
+		call(module.init, ...)
+	end
+end
+
+function update(...)
+	for i, module in pairs(submodules) do
+		call(module.update, ...)
+	end
+end
+
+function uninit(...)
+	for i, module in pairs(submodules) do
+		call(module.uninit, ...)
+	end
+end
\ No newline at end of file
diff --git a/assets/opensb/scripts/universeClient/opensb/voice_manager.lua b/assets/opensb/scripts/universeClient/opensb/voice_manager.lua
new file mode 100644
index 0000000..c07a8c2
--- /dev/null
+++ b/assets/opensb/scripts/universeClient/opensb/voice_manager.lua
@@ -0,0 +1,216 @@
+-- Manages the voice HUD indicators and click-to-mute/unmute.
+
+local fmt = string.format
+local sqrt = math.sqrt
+
+local module = {}
+submodules.voice_manager = module
+
+--constants
+local INDICATOR_PATH = "/interface/voicechat/indicator/"
+local BACK_INDICATOR_IMAGE = INDICATOR_PATH .. "back.png"
+local FRONT_INDICATOR_IMAGE = INDICATOR_PATH .. "front.png"
+local FRONT_MUTED_INDICATOR_IMAGE = INDICATOR_PATH .. "front_muted.png"
+local INDICATOR_SIZE = {300, 48}
+local LINE_PADDING = 12
+local LINE_WIDTH = 296
+local LINE_WIDTH_PADDED = LINE_WIDTH - LINE_PADDING
+local LINE_COLOR = {50, 210, 255, 255}
+local FONT_DIRECTIVES = "?border=1;333;3337?border=1;333;3330"
+local NAME_PREFIX = "^noshadow,white,set;"
+
+local canvas
+
+local linePaddingDrawable = {
+	image = BACK_INDICATOR_IMAGE,
+	position = {0, 0},
+	color = LINE_COLOR,
+	centered = false
+}
+
+local function getLinePadding(a, b)
+	linePaddingDrawable.image = BACK_INDICATOR_IMAGE .. fmt("?crop=%i;%i;%i;%i?fade=fff;1", a, 0, b, INDICATOR_SIZE[2])
+	linePaddingDrawable.position[1] = a
+	return linePaddingDrawable;
+end
+
+local lineDrawable = {
+	line = {{LINE_PADDING, 24}, {10, 24}},
+	width = 48,
+	color = LINE_COLOR
+}
+
+local function drawTheLine(pos, value)
+	local width = math.floor((LINE_WIDTH * value) + 0.5)
+	LINE_COLOR[4] = 255 * math.min(1, sqrt(width / 350))
+	if width > 0 then
+		canvas:drawDrawable(getLinePadding(0, math.min(12, width)), pos)
+		if width > 12 then
+			lineDrawable.line[2][1] = math.min(width, LINE_WIDTH_PADDED)
+			canvas:drawDrawable(lineDrawable, pos)
+			if width > LINE_WIDTH_PADDED then
+				canvas:drawDrawable(getLinePadding(LINE_WIDTH_PADDED, width), pos)
+			end
+		end
+	end
+end
+
+local drawable = {
+	image = BACK_INDICATOR_IMAGE,
+	centered = false
+}
+
+local textPositioning = {
+	position = {0, 0},
+	horizontalAnchor = "left",
+	verticalAnchor = "mid"
+}
+
+local hoveredSpeaker = nil
+local hoveredSpeakerIndex = 1
+local hoveredSpeakerPosition = {0, 0}
+local function mouseOverSpeaker(mouse, pos, expand)
+	expand = tonumber(expand) or 0
+	return (mouse[1] > pos[1] - expand and mouse[1] < pos[1] + 300 + expand)
+	   and (mouse[2] > pos[2] - expand and mouse[2] < pos[2] +  48 + expand)
+end
+
+local function drawSpeakerBar(mouse, pos, speaker, i)
+	drawable.image = BACK_INDICATOR_IMAGE
+	canvas:drawDrawable(drawable, pos)
+	drawTheLine(pos, 1 - math.sqrt(math.min(1, math.max(0, speaker.loudness / -50))))
+	local hovering = not speaker.isLocal and mouseOverSpeaker(mouse, pos)
+
+	textPositioning.position = {pos[1] + 49, pos[2] + 24}
+	textPositioning.horizontalAnchor = "left"
+	local text = NAME_PREFIX ..
+	(hovering and (speaker.muted and "^#31d2f7;Unmute^reset; " or "^#f43030;Mute^reset; ") or "")
+	.. speaker.name
+	canvas:drawText(text, textPositioning, 16, nil, nil, nil, FONT_DIRECTIVES)
+	drawable.image = speaker.muted and FRONT_MUTED_INDICATOR_IMAGE or FRONT_INDICATOR_IMAGE
+	canvas:drawDrawable(drawable, pos)
+
+	if hovering	then
+		hoveredSpeaker = speaker
+		hoveredSpeakerIndex = i
+		hoveredSpeakerPosition = pos
+		--if input.key("LShift") then
+		--	textPositioning.position = {pos[1] + 288, pos[2] + 24}
+		--	textPositioning.horizontalAnchor = "right"
+		--	canvas:drawText("^#fff7;" .. tostring(speaker.speakerId), textPositioning, 16, nil, nil, nil, FONT_DIRECTIVES)
+		--end
+--
+		--if input.mouseDown("MouseLeft") then
+		--	local muted = not voice.muted(speaker.speakerId)
+		--	interface.queueMessage((muted and "^#f43030;Muted^reset; " or "^#31d2f7;Unmuted^reset; ") .. speaker.name, 4, 0.5)
+		--	voice.setMuted(speaker.speakerId, muted)
+		--end
+	end
+end
+local speakersTime = {}
+
+local function simulateSpeakers()
+	local speakers = {}
+	for i = 2, 5 + math.floor((math.sin(os.clock()) * 4) + .5) do
+		speakers[i] = {
+			speakerId = i,
+			entityId = -65536 * i,
+			name = "Player " .. i,
+			loudness = -48 + 48 * math.sin(os.clock() + (i * 0.5)),
+			muted = false
+		}
+	end
+	return speakers
+end
+
+local function drawIndicators()
+	canvas:clear()
+	local screenSize = canvas:size()
+	local mousePosition = canvas:mousePosition()
+	sb.setLogMap("mousePosition", sb.printJson(mousePosition))
+	local basePos = {screenSize[1] - 350, 50}
+
+	-- sort it ourselves for now
+	local speakersRemaining, speakersSorted = {}, {}
+	local hoveredSpeakerId = nil
+	if hoveredSpeaker then
+		if not mouseOverSpeaker(mousePosition, hoveredSpeakerPosition, 16) then
+			hoveredSpeaker = nil
+		else
+			hoveredSpeakerId = hoveredSpeaker.speakerId
+		end
+	end
+
+	--local speakers = voice.speakers()
+	local speakers = { -- just testing before implementing voice lua functions
+		{
+			speakerId = 1,
+			entityId = -65536,
+			loudness = -96 + math.random() * 96,
+			muted = false,
+			name = "theres a pipe bomb up my ass"
+		}
+	}
+
+	local sortI = 0
+	local now = os.clock()
+	for i, speaker in pairs(speakers) do
+		local speakerId = speaker.speakerId
+		speakersRemaining[speakerId] = true
+		local t = speakersTime[speakerId]
+		if not t then
+			t = now
+			speakersTime[speakerId] = t
+		end
+		speaker.startTime = t
+		if speakerId == hoveredSpeakerId then
+			hoveredSpeaker = speaker
+		else
+			sortI = sortI + 1
+			speakersSorted[sortI] = speaker
+		end
+	end
+
+	for i, v in pairs(speakersTime) do
+		if not speakersRemaining[i] then
+			speakersTime[i] = nil
+		end
+	end
+
+	table.sort(speakersSorted, function(a, b)
+		if a.startTime == b.startTime then
+			return a.speakerId < b.speakerId
+		else
+			return a.startTime < b.startTime
+		end
+	end)
+
+	if hoveredSpeaker then
+		local len = #speakersSorted
+		if hoveredSpeakerIndex > len then
+			for i = len + 1, hoveredSpeakerIndex - 1 do
+				speakersSorted[i] = false
+			end
+			speakersSorted[hoveredSpeakerIndex] = hoveredSpeaker
+		else
+			table.insert(speakersSorted, hoveredSpeakerIndex, hoveredSpeaker)
+		end
+	end
+
+	for i, v in pairs(speakersSorted) do
+		if v then
+			local entityId = v.entityId
+			local loudness = v.loudness
+			local pos = {basePos[1], basePos[2] + (i - 1) * 52}
+			drawSpeakerBar(mousePosition, pos, v, i)
+		end
+	end
+end
+
+function module.init()
+	canvas = interface.bindCanvas("voice", true)
+end
+
+function module.update()
+	drawIndicators()
+end
\ No newline at end of file
diff --git a/source/client/StarClientApplication.cpp b/source/client/StarClientApplication.cpp
index f7ab21b..9de1642 100644
--- a/source/client/StarClientApplication.cpp
+++ b/source/client/StarClientApplication.cpp
@@ -614,6 +614,7 @@ void ClientApplication::changeState(MainAppState newState) {
     m_worldPainter = make_shared<WorldPainter>();
     m_mainInterface = make_shared<MainInterface>(m_universeClient, m_worldPainter, m_cinematicOverlay);
     m_universeClient->setLuaCallbacks("interface", LuaBindings::makeInterfaceCallbacks(m_mainInterface.get()));
+    m_universeClient->startLua();
 
     m_mainMixer->setWorldPainter(m_worldPainter);
 
diff --git a/source/frontend/StarInterfaceLuaBindings.cpp b/source/frontend/StarInterfaceLuaBindings.cpp
index 14b2e7c..d5e0960 100644
--- a/source/frontend/StarInterfaceLuaBindings.cpp
+++ b/source/frontend/StarInterfaceLuaBindings.cpp
@@ -27,6 +27,11 @@ LuaCallbacks LuaBindings::makeInterfaceCallbacks(MainInterface* mainInterface) {
     return GuiContext::singleton().interfaceScale();
   });
 
+  callbacks.registerCallback("queueMessage", [mainInterface](String const& message, Maybe<float> cooldown, Maybe<float> springState) {
+    mainInterface->queueMessage(message, cooldown, springState.value(0));
+  });
+
+
   return callbacks;
 }
 
diff --git a/source/frontend/StarMainInterface.cpp b/source/frontend/StarMainInterface.cpp
index 9f335b6..0dc3a01 100644
--- a/source/frontend/StarMainInterface.cpp
+++ b/source/frontend/StarMainInterface.cpp
@@ -62,8 +62,8 @@ namespace Star {
 
 GuiMessage::GuiMessage() : message(), cooldown(), springState() {}
 
-GuiMessage::GuiMessage(String const& message, float cooldown)
-  : message(message), cooldown(cooldown), springState(0) {}
+GuiMessage::GuiMessage(String const& message, float cooldown, float spring)
+  : message(message), cooldown(cooldown), springState(spring) {}
 
 MainInterface::MainInterface(UniverseClientPtr client, WorldPainterPtr painter, CinematicPtr cinematicOverlay) {
   m_state = Running;
@@ -369,6 +369,9 @@ bool MainInterface::handleInputEvent(InputEvent const& event) {
       player->endTrigger();
   }
 
+  for (auto& pair : m_canvases)
+    pair.second->sendEvent(event);
+
   return true;
 }
 
@@ -863,11 +866,15 @@ void MainInterface::doChat(String const& chat, bool addToHistory) {
     m_chat->addHistory(chat);
 }
 
-void MainInterface::queueMessage(String const& message) {
-  auto guiMessage = make_shared<GuiMessage>(message, m_config->messageTime);
+void MainInterface::queueMessage(String const& message, Maybe<float> cooldown, float spring) {
+  auto guiMessage = make_shared<GuiMessage>(message, cooldown.value(m_config->messageTime), spring);
   m_messages.append(guiMessage);
 }
 
+void MainInterface::queueMessage(String const& message) {
+  queueMessage(message, m_config->messageTime, 0.0f);
+}
+
 void MainInterface::queueJoinRequest(pair<String, RpcPromiseKeeper<P2PJoinRequestReply>> request)
 {
   m_queuedJoinRequests.push_back(request);
@@ -927,18 +934,21 @@ void MainInterface::warpTo(WarpAction const& warpAction) {
 }
 
 CanvasWidgetPtr MainInterface::fetchCanvas(String const& canvasName, bool ignoreInterfaceScale) {
+  CanvasWidgetPtr canvas;
+
   if (auto canvasPtr = m_canvases.ptr(canvasName))
-    return *canvasPtr;
+    canvas = *canvasPtr;
   else {
-    CanvasWidgetPtr canvas = m_canvases.emplace(canvasName, make_shared<CanvasWidget>()).first->second;
+    m_canvases.emplace(canvasName, canvas = make_shared<CanvasWidget>());
     canvas->setPosition(Vec2I());
     if (ignoreInterfaceScale)
       canvas->setSize(Vec2I(m_guiContext->windowSize()));
     else
       canvas->setSize(Vec2I(m_guiContext->windowInterfaceSize()));
-    canvas->setIgnoreInterfaceScale(ignoreInterfaceScale);
-    return canvas;
   }
+
+  canvas->setIgnoreInterfaceScale(ignoreInterfaceScale);
+  return canvas;
 }
 
 PanePtr MainInterface::createEscapeDialog() {
diff --git a/source/frontend/StarMainInterface.hpp b/source/frontend/StarMainInterface.hpp
index d96779d..9cf2342 100644
--- a/source/frontend/StarMainInterface.hpp
+++ b/source/frontend/StarMainInterface.hpp
@@ -49,7 +49,7 @@ STAR_CLASS(MainInterface);
 
 struct GuiMessage {
   GuiMessage();
-  GuiMessage(String const& message, float cooldown);
+  GuiMessage(String const& message, float cooldown, float spring = 0);
 
   String message;
   float cooldown;
@@ -105,7 +105,9 @@ public:
 
   void doChat(String const& chat, bool addToHistory);
 
+  void queueMessage(String const& message, Maybe<float> cooldown, float spring);
   void queueMessage(String const& message);
+
   void queueItemPickupText(ItemPtr const& item);
   void queueJoinRequest(pair<String, RpcPromiseKeeper<P2PJoinRequestReply>> request);
 
diff --git a/source/game/StarUniverseClient.cpp b/source/game/StarUniverseClient.cpp
index 1622518..bc1b0b9 100644
--- a/source/game/StarUniverseClient.cpp
+++ b/source/game/StarUniverseClient.cpp
@@ -30,6 +30,7 @@ UniverseClient::UniverseClient(PlayerStoragePtr playerStorage, StatisticsPtr sta
   m_playerStorage = move(playerStorage);
   m_statistics = move(statistics);
   m_pause = false;
+  m_luaRoot = make_shared<LuaRoot>();
   reset();
 }
 
@@ -86,7 +87,7 @@ Maybe<String> UniverseClient::connect(UniverseConnection connection, bool allowA
     return String(strf("Join failed! Server does not support connections with protocol version {}", StarProtocolVersion));
 
   connection.pushSingle(make_shared<ClientConnectPacket>(Root::singleton().assets()->digest(), allowAssetsMismatch, m_mainPlayer->uuid(), m_mainPlayer->name(),
-      m_mainPlayer->species(), m_playerStorage->loadShipData(m_mainPlayer->uuid()), ShipUpgrades(m_mainPlayer->shipUpgrades()),
+      m_mainPlayer->species(), m_playerStorage->loadShipData(m_mainPlayer->uuid()), m_mainPlayer->shipUpgrades(),
       m_mainPlayer->log()->introComplete(), account));
   connection.sendAll(timeout);
 
@@ -219,8 +220,11 @@ void UniverseClient::update() {
 
   m_statistics->update();
 
-  if (!m_pause)
+  if (!m_pause) {
     m_worldClient->update();
+    for (auto& p : m_scriptContexts)
+      p.second->update();
+  }
   m_connection->push(m_worldClient->getOutgoingPackets());
 
   if (!m_pause)
@@ -444,6 +448,28 @@ void UniverseClient::setLuaCallbacks(String const& groupName, LuaCallbacks const
     m_worldClient->setLuaCallbacks(groupName, callbacks);
 }
 
+void UniverseClient::startLua() {
+  auto assets = Root::singleton().assets();
+  for (auto& p : assets->json("/client.config:universeScriptContexts").toObject()) {
+    auto scriptComponent = make_shared<ScriptComponent>();
+    scriptComponent->setLuaRoot(m_luaRoot);
+    scriptComponent->setScripts(jsonToStringList(p.second.toArray()));
+
+    for (auto& pair : m_luaCallbacks)
+      scriptComponent->addCallbacks(pair.first, pair.second);
+
+    m_scriptContexts.set(p.first, scriptComponent);
+    scriptComponent->init();
+  }
+}
+
+void UniverseClient::stopLua() {
+  for (auto& p : m_scriptContexts)
+    p.second->uninit();
+
+  m_scriptContexts.clear();
+}
+
 ClockConstPtr UniverseClient::universeClock() const {
   return m_universeClock;
 }
@@ -539,6 +565,8 @@ void UniverseClient::handlePackets(List<PacketPtr> const& packets) {
 }
 
 void UniverseClient::reset() {
+  stopLua();
+
   m_universeClock.reset();
   m_worldClient.reset();
   m_celestialDatabase.reset();
diff --git a/source/game/StarUniverseClient.hpp b/source/game/StarUniverseClient.hpp
index b26f2df..daad481 100644
--- a/source/game/StarUniverseClient.hpp
+++ b/source/game/StarUniverseClient.hpp
@@ -10,6 +10,7 @@
 #include "StarAiTypes.hpp"
 #include "StarSky.hpp"
 #include "StarUniverseConnection.hpp"
+#include "StarLuaComponents.hpp"
 
 namespace Star {
 
@@ -29,8 +30,8 @@ STAR_CLASS(CelestialDatabase);
 STAR_CLASS(JsonRpcInterface);
 STAR_CLASS(TeamClient);
 STAR_CLASS(QuestManager);
-
 STAR_CLASS(UniverseClient);
+STAR_CLASS(LuaRoot);
 
 class UniverseClient {
 public:
@@ -86,6 +87,8 @@ public:
   uint16_t maxPlayers();
 
   void setLuaCallbacks(String const& groupName, LuaCallbacks const& callbacks);
+  void startLua();
+  void stopLua();
 
   ClockConstPtr universeClock() const;
   CelestialLogConstPtr celestialLog() const;
@@ -141,6 +144,12 @@ private:
   List<ChatReceivedMessage> m_pendingMessages;
 
   Maybe<String> m_disconnectReason;
+
+  LuaRootPtr m_luaRoot;
+
+  typedef LuaUpdatableComponent<LuaBaseComponent> ScriptComponent;
+  typedef shared_ptr<ScriptComponent> ScriptComponentPtr;
+  StringMap<ScriptComponentPtr> m_scriptContexts;
 };
 
 }
diff --git a/source/windowing/StarCanvasWidget.cpp b/source/windowing/StarCanvasWidget.cpp
index ed2e30f..a0eeb7d 100644
--- a/source/windowing/StarCanvasWidget.cpp
+++ b/source/windowing/StarCanvasWidget.cpp
@@ -88,20 +88,21 @@ bool CanvasWidget::sendEvent(InputEvent const& event) {
     return false;
 
   auto& context = GuiContext::singleton();
+  int interfaceScale = m_ignoreInterfaceScale ? 1 : context.interfaceScale();
   if (auto mouseButtonDown = event.ptr<MouseButtonDownEvent>()) {
-    if (inMember(*context.mousePosition(event)) && m_captureMouse) {
-      m_clickEvents.append({*context.mousePosition(event) - screenPosition(), mouseButtonDown->mouseButton, true});
+    if (inMember(*context.mousePosition(event, interfaceScale)) && m_captureMouse) {
+      m_clickEvents.append({*context.mousePosition(event, interfaceScale) - screenPosition(), mouseButtonDown->mouseButton, true});
       m_clickEvents.limitSizeBack(MaximumEventBuffer);
       return true;
     }
   } else if (auto mouseButtonUp = event.ptr<MouseButtonUpEvent>()) {
     if (m_captureMouse) {
-      m_clickEvents.append({*context.mousePosition(event) - screenPosition(), mouseButtonUp->mouseButton, false});
+      m_clickEvents.append({*context.mousePosition(event, interfaceScale) - screenPosition(), mouseButtonUp->mouseButton, false});
       m_clickEvents.limitSizeBack(MaximumEventBuffer);
       return true;
     }
   } else if (event.is<MouseMoveEvent>()) {
-    m_mousePosition = *context.mousePosition(event) - screenPosition();
+    m_mousePosition = *context.mousePosition(event, interfaceScale) - screenPosition();
     return false;
   } else if (auto keyDown = event.ptr<KeyDownEvent>()) {
     if (m_captureKeyboard) {
@@ -258,7 +259,7 @@ void CanvasWidget::renderTriangles(Vec2F const& renderingOffset, List<tuple<Vec2
 void CanvasWidget::renderText(Vec2F const& renderingOffset, String const& s, TextPositioning const& position, unsigned fontSize, Vec4B const& color, FontMode mode, float lineSpacing, String const& font, String const& directives) {
   auto& context = GuiContext::singleton();
   context.setFontProcessingDirectives(directives);
-  context.setFontSize(fontSize);
+  context.setFontSize(fontSize, m_ignoreInterfaceScale ? 1 : context.interfaceScale());
   context.setFontColor(color);
   context.setFontMode(mode);
   context.setFont(font);
diff --git a/source/windowing/StarGuiContext.cpp b/source/windowing/StarGuiContext.cpp
index 2d649c5..73713d1 100644
--- a/source/windowing/StarGuiContext.cpp
+++ b/source/windowing/StarGuiContext.cpp
@@ -98,9 +98,9 @@ void GuiContext::setInterfaceScale(int interfaceScale) {
   m_interfaceScale = interfaceScale;
 }
 
-Maybe<Vec2I> GuiContext::mousePosition(InputEvent const& event) const {
-  auto getInterfacePosition = [this](Vec2I pos) {
-    return Vec2I(pos) / interfaceScale();
+Maybe<Vec2I> GuiContext::mousePosition(InputEvent const& event, int pixelRatio) const {
+  auto getInterfacePosition = [pixelRatio](Vec2I pos) {
+    return Vec2I(pos) / pixelRatio;
   };
 
   if (auto mouseMoveEvent = event.ptr<MouseMoveEvent>())
@@ -115,6 +115,10 @@ Maybe<Vec2I> GuiContext::mousePosition(InputEvent const& event) const {
     return {};
 }
 
+Maybe<Vec2I> GuiContext::mousePosition(InputEvent const& event) const {
+  return mousePosition(event, interfaceScale());
+}
+
 Set<InterfaceAction> GuiContext::actions(InputEvent const& event) const {
   return m_keyBindings.actions(event);
 }
diff --git a/source/windowing/StarGuiContext.hpp b/source/windowing/StarGuiContext.hpp
index 1d6ed46..8e689ee 100644
--- a/source/windowing/StarGuiContext.hpp
+++ b/source/windowing/StarGuiContext.hpp
@@ -50,6 +50,7 @@ public:
   int interfaceScale() const;
   void setInterfaceScale(int interfaceScale);
 
+  Maybe<Vec2I> mousePosition(InputEvent const& event, int pixelRatio) const;
   Maybe<Vec2I> mousePosition(InputEvent const& event) const;
 
   Set<InterfaceAction> actions(InputEvent const& event) const;
diff --git a/source/windowing/StarWidgetLuaBindings.cpp b/source/windowing/StarWidgetLuaBindings.cpp
index 46f1ac8..f69bd53 100644
--- a/source/windowing/StarWidgetLuaBindings.cpp
+++ b/source/windowing/StarWidgetLuaBindings.cpp
@@ -25,13 +25,14 @@ LuaMethods<CanvasWidgetPtr> LuaUserDataMethods<CanvasWidgetPtr>::make() {
 
   methods.registerMethodWithSignature<void, CanvasWidgetPtr>("clear", mem_fn(&CanvasWidget::clear));
 
-  methods.registerMethod("drawDrawable", [](CanvasWidgetPtr canvasWidget, Drawable drawable) {
-    canvasWidget->drawDrawable(move(drawable), Vec2F());
+  methods.registerMethod("drawDrawable", [](CanvasWidgetPtr canvasWidget, Drawable drawable, Maybe<Vec2F> screenPos) {
+    canvasWidget->drawDrawable(move(drawable), screenPos.value(Vec2F()));
   });
 
-  methods.registerMethod("drawDrawables", [](CanvasWidgetPtr canvasWidget, List<Drawable> drawables) {
+  methods.registerMethod("drawDrawables", [](CanvasWidgetPtr canvasWidget, List<Drawable> drawables, Maybe<Vec2F> screenPos) {
+    Vec2F pos = screenPos.value(Vec2F());
     for (auto& drawable : drawables)
-      canvasWidget->drawDrawable(move(drawable), Vec2F());
+      canvasWidget->drawDrawable(move(drawable), pos);
   });
 
   methods.registerMethod("drawImage",