update windows workflow and CMakeLists.txt

CMakeLists.txt

@@ -1,4 +1,6 @@
 option(VOXELENGINE_BUILD_WINDOWS_VCPKG OFF)
+option(VOXELENGINE_BUILD_STATIC OFF)
+
 if(VOXELENGINE_BUILD_WINDOWS_VCPKG AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake")
   set(CMAKE_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake" CACHE STRING "")
 endif()
@@ -88,6 +90,8 @@ if (NOT APPLE)
     find_package(EnTT REQUIRED)
 endif()
 
+set(ZLIB ZLIB::ZLIB)
+
 if (WIN32)
     if(VOXELENGINE_BUILD_WINDOWS_VCPKG)
       set(LUA_LIBRARIES "${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/packages/luajit_x64-windows/lib/lua51.lib")
@@ -96,9 +100,13 @@ if (WIN32)
       find_package(spng REQUIRED)
       find_package(glm REQUIRED)
       find_package(vorbis REQUIRED)
-      set(PNGLIB spng::spng)
+      if(VOXELENGINE_BUILD_STATIC)
+        set(PNGLIB spng::spng_static)
+        set(ZLIB zlibstatic)
+      else()
+        set(PNGLIB spng::spng)
+      endif()
       set(VORBISLIB Vorbis::vorbis Vorbis::vorbisfile)
-    else()
       find_package(Lua REQUIRED)
       set(PNGLIB spng)
       set(VORBISLIB vorbis vorbisfile) # not tested