add in-game chat & update gui post-runnables timing & fix panel elements removal

src/engine/Engine.cpp

@@ -217,6 +217,7 @@ void Engine::renderFrame() {
     Viewport viewport(Window::width, Window::height);
     DrawContext ctx(nullptr, viewport, nullptr);
     gui->draw(ctx, *assets);
+    gui->postAct();
 }
 
 void Engine::saveSettings() {

src/graphics/ui/GUI.cpp

@@ -178,12 +178,6 @@ void GUI::actFocused() {
 }
 
 void GUI::act(float delta, const Viewport& vp) {
-    while (!postRunnables.empty()) {
-        runnable callback = postRunnables.back();
-        postRunnables.pop();
-        callback();
-    }
-
     container->setSize(vp.size());
     container->act(delta);
     auto prevfocus = focus;
@@ -206,6 +200,14 @@ void GUI::act(float delta, const Viewport& vp) {
     }
 }
 
+void GUI::postAct() {
+    while (!postRunnables.empty()) {
+        runnable callback = postRunnables.back();
+        postRunnables.pop();
+        callback();
+    }
+}
+
 void GUI::draw(const DrawContext& pctx, const Assets& assets) {
     auto ctx = pctx.sub(batch2D.get());
 

src/graphics/ui/GUI.hpp

@@ -106,6 +106,8 @@ namespace gui {
         /// @param assets active assets storage
         void draw(const DrawContext& pctx, const Assets& assets);
 
+        void postAct();
+
         /// @brief Add element to the main container
         /// @param node UI element
         void add(std::shared_ptr<UINode> node);

src/graphics/ui/elements/Panel.cpp

@@ -62,6 +62,11 @@ void Panel::add(const std::shared_ptr<UINode> &node) {
     fullRefresh();
 }
 
+void Panel::remove(const std::shared_ptr<UINode> &node) {
+    Container::remove(node);
+    fullRefresh();
+}
+
 void Panel::refresh() {
     UINode::refresh();
     std::stable_sort(nodes.begin(), nodes.end(), [](auto a, auto b) {

src/graphics/ui/elements/Panel.hpp

@@ -25,6 +25,7 @@ namespace gui {
         Orientation getOrientation() const;
 
         virtual void add(const std::shared_ptr<UINode>& node) override;
+        virtual void remove(const std::shared_ptr<UINode>& node) override;
 
         virtual void refresh() override;
         virtual void fullRefresh() override;