From e7e30f219c0129db7cb72f04e200098417ce25d0 Mon Sep 17 00:00:00 2001
From: Navan Chauhan <navanchauhan@gmail.com>
Date: Wed, 17 Apr 2024 12:02:38 -0600
Subject: initial commit

---
 Sources/SwiftChessNeo/Variant.swift | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Sources/SwiftChessNeo/Variant.swift

(limited to 'Sources/SwiftChessNeo/Variant.swift')

diff --git a/Sources/SwiftChessNeo/Variant.swift b/Sources/SwiftChessNeo/Variant.swift
new file mode 100644
index 0000000..70f7b71
--- /dev/null
+++ b/Sources/SwiftChessNeo/Variant.swift
@@ -0,0 +1,46 @@
+//
+//  Variant.swift
+//  Sage
+//
+//  Copyright 2016-2017 Nikolai Vazquez
+//  Modified by SuperGeroy
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+/// A chess variant that defines how a `Board` is populated or how a `Game` is played.
+public enum Variant {
+
+    /// Standard chess.
+    case standard
+
+    /// Upside down chess where the piece colors swap starting squares.
+    case upsideDown
+
+    /// Standard regardless of Swift version.
+    internal static let _standard = Variant.standard
+
+    /// UpsideDown regardless of Swift version.
+    internal static let _upsideDown = Variant.upsideDown
+
+    /// `self` is standard variant.
+    public var isStandard: Bool {
+        return self == ._standard
+    }
+
+    /// `self` is upside down variant.
+    public var isUpsideDown: Bool {
+        return self == ._upsideDown
+    }
+
+}
-- 
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