add macOS workflow

.github/workflows/macos.yml

@@ -0,0 +1,53 @@
+name: 🍎 macOS
+
+# TODO: upload *.dylib / *.framework as artifacts
+
+on:
+  push:
+    paths:
+      - "doc/cpp-demo/**"
+    branches-ignore:
+      - godot3
+  pull_request:
+    paths:
+      - "doc/cpp-demo/**"
+    branches-ignore:
+      - godot3
+
+env:
+  VCPKG_ROOT: "${{ github.workspace }}/vcpkg"
+  VCPKG_DISABLE_METRICS: 1
+  vcpkg_tag: "2022.11.14"
+  source: "${{ github.workspace }}/doc/cpp-demo"
+  build: "${{ github.workspace }}/doc/cpp-demo/build.debug"
+  preset: debug
+  config: Debug
+
+jobs:
+  analyze:
+    name: Build
+    runs-on: macos-latest
+
+    steps:
+      - name: macOS deps
+        run: |
+          brew install ninja
+
+      - uses: actions/checkout@v3
+
+      - name: Get vcpkg
+        run: |
+          git clone -n https://github.com/microsoft/vcpkg
+          cd vcpkg
+          git checkout ${{ env.vcpkg_tag }}
+          ./bootstrap-vcpkg.sh
+
+      - name: CMake Configure
+        run: cmake --preset ${{ env.preset }} ${{ env.source }}
+
+      - name: CMake Build
+        run: cmake --build ${{ env.build }} --config ${{ env.config }} --target install
+
+      - name: CMake Test
+        working-directory: ${{ env.build }}
+        run: ctest -C ${{env.config}}

doc/cpp-demo/src/MyCppNode.cpp

@@ -8,6 +8,8 @@ using namespace godot;
 
 struct MyCppNode::Impl
 {
+    bool show_imgui_demo = true;
+    bool show_implot_demo = true;
 };
 
 MyCppNode::MyCppNode() : impl(std::make_unique<Impl>())
@@ -71,7 +73,11 @@ void MyCppNode::_exit_tree()
 
 void MyCppNode::_process(double delta)
 {
-    ImPlot::ShowDemoWindow();
+    if (impl->show_imgui_demo)
+        ImGui::ShowDemoWindow(&impl->show_imgui_demo);
+
+    if (impl->show_implot_demo)
+        ImPlot::ShowDemoWindow(&impl->show_implot_demo);
 
     ImGui::Begin("Cpp Window");
     ImGui::Text("hello from C++");