Add entityx

ports/entityx/CONTROL

@@ -0,0 +1,3 @@
+Source: entityx
+Version:
+Description:

ports/entityx/portfile.cmake

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+# Common Ambient Variables:
+#   VCPKG_ROOT_DIR = <C:\path\to\current\vcpkg>
+#   TARGET_TRIPLET is the current triplet (x86-windows, etc)
+#   PORT is the current port name (zlib, etc)
+#   CURRENT_BUILDTREES_DIR = ${VCPKG_ROOT_DIR}\buildtrees\${PORT}
+#   CURRENT_PACKAGES_DIR  = ${VCPKG_ROOT_DIR}\packages\${PORT}_${TARGET_TRIPLET}
+#
+
+if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
+    message(STATUS "Warning: Dynamic building not supported yet. Building static.")
+    set(VCPKG_LIBRARY_LINKAGE static)
+endif()
+
+include(vcpkg_common_functions)
+set(SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/entityx-1.2.0)
+vcpkg_download_distfile(ARCHIVE
+    URLS "https://github.com/alecthomas/entityx/archive/1.2.0.zip"
+    FILENAME "entityx-1.2.0.zip"
+    SHA512 4d7009f0412fbccd7bee72713d53424c3b4fa39da62b87729dd84a710a059db27e65ca27b927285c82af09997caea125d85571824133d9b71b4e3c4eebd9917c
+)
+vcpkg_extract_source_archive(${ARCHIVE})
+
+if (VCPKG_CRT_LINKAGE STREQUAL dynamic)
+    SET(SHARED_FLAG ON)
+else()
+    SET(SHARED_FLAG OFF)
+endif()
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    OPTIONS
+    # OPTIONS_RELEASE -DOPTIMIZE=1
+    # OPTIONS_DEBUG -DDEBUGGABLE=1
+    -DENTITYX_BUILD_SHARED=${SHARED_FLAG}
+    -DENTITYX_BUILD_TESTING=false
+)
+
+vcpkg_install_cmake()
+
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
+
+# Handle copyright
+file(COPY ${SOURCE_PATH}/COPYING DESTINATION ${CURRENT_PACKAGES_DIR}/share/entityx)
+file(RENAME ${CURRENT_PACKAGES_DIR}/share/entityx/COPYING ${CURRENT_PACKAGES_DIR}/share/entityx/copyright)