[LIB-9] Separate chesshog-core module

[chesshog.git] / chesshog-core / src / main / java / org / hedgecode / chess / position / Piece.java

diff --git a/chesshog-core/src/main/java/org/hedgecode/chess/position/Piece.java b/chesshog-core/src/main/java/org/hedgecode/chess/position/Piece.java
new file mode 100644 (file)
index 0000000..9554606
--- /dev/null
+++ b/chesshog-core/src/main/java/org/hedgecode/chess/position/Piece.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2018. Developed by Hedgecode.
+ *
+ * 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.
+ */
+
+package org.hedgecode.chess.position;
+
+/**
+ *
+ *
+ * @author Dmitry Samoshin aka gotty
+ */
+public enum Piece {
+
+    PAWN    ('p'),
+    KNIGHT  ('n'),
+    BISHOP  ('b'),
+    ROOK    ('r'),
+    QUEEN   ('q'),
+    KING    ('k');
+
+    private char letter;
+
+    Piece(char letter) {
+        this.letter = letter;
+    }
+
+    public char letter() {
+        return letter;
+    }
+
+    public static Piece byLetter(char letter) {
+        for (Piece piece : Piece.values()) {
+            if (piece.letter() == letter)
+                return piece;
+        }
+        return null;
+    }
+
+    public static Piece byLetter(String letter) {
+        if (letter == null || letter.length() != 1)
+            return null;
+        for (Piece piece : Piece.values()) {
+            if (piece.letter() == letter.charAt(0))
+                return piece;
+        }
+        return null;
+    }
+
+}