From fca90c64acb54f74188fa2b8ad96207cf5833ff1 Mon Sep 17 00:00:00 2001
From: Gymnasiast <m.o.steenbeek@gmail.com>
Date: Sun, 8 Sep 2024 15:37:11 +0200
Subject: [PATCH] Create FlagHolder

---
 src/openrct2/core/FlagHolder.hpp | 45 ++++++++++++++++++++++++++++++++
 src/openrct2/libopenrct2.vcxproj |  1 +
 2 files changed, 46 insertions(+)
 create mode 100644 src/openrct2/core/FlagHolder.hpp

diff --git a/src/openrct2/core/FlagHolder.hpp b/src/openrct2/core/FlagHolder.hpp
new file mode 100644
index 0000000000..f235286fea
--- /dev/null
+++ b/src/openrct2/core/FlagHolder.hpp
@@ -0,0 +1,45 @@
+/*****************************************************************************
+ * Copyright (c) 2014-2024 OpenRCT2 developers
+ *
+ * For a complete list of all authors, please refer to contributors.md
+ * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
+ *
+ * OpenRCT2 is licensed under the GNU General Public License version 3.
+ *****************************************************************************/
+
+#pragma once
+
+template<typename THolderType, typename TEnumType> struct FlagHolder
+{
+    THolderType holder{};
+
+    constexpr void clearAll()
+    {
+        holder = 0;
+    }
+
+    [[nodiscard]] constexpr bool isEmpty() const
+    {
+        return holder == 0;
+    }
+
+    [[nodiscard]] constexpr bool has(TEnumType flag) const
+    {
+        return (holder & EnumToFlag(flag)) != 0;
+    }
+
+    constexpr void set(TEnumType flag)
+    {
+        holder |= EnumToFlag(flag);
+    }
+
+    constexpr void unset(TEnumType flag)
+    {
+        holder &= ~EnumToFlag(flag);
+    }
+
+    constexpr void flip(TEnumType flag)
+    {
+        holder ^= EnumToFlag(flag);
+    }
+};
diff --git a/src/openrct2/libopenrct2.vcxproj b/src/openrct2/libopenrct2.vcxproj
index 7e8bbab311..ea19a39343 100644
--- a/src/openrct2/libopenrct2.vcxproj
+++ b/src/openrct2/libopenrct2.vcxproj
@@ -222,6 +222,7 @@
     <ClInclude Include="core\Range.hpp" />
     <ClInclude Include="core\RTL.h" />
     <ClInclude Include="core\FixedVector.h" />
+    <ClInclude Include="core\FlagHolder.hpp" />
     <ClInclude Include="core\Speed.hpp" />
     <ClInclude Include="core\String.hpp" />
     <ClInclude Include="core\StringBuilder.h" />