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webapps/examples/WEB-INF/classes/websocket/snake/Location.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 websocket.snake;
+
+public class Location {
+
+    public int x;
+    public int y;
+
+    public Location(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public Location getAdjacentLocation(Direction direction) {
+        switch (direction) {
+            case NORTH:
+                return new Location(x, y - SnakeAnnotation.GRID_SIZE);
+            case SOUTH:
+                return new Location(x, y + SnakeAnnotation.GRID_SIZE);
+            case EAST:
+                return new Location(x + SnakeAnnotation.GRID_SIZE, y);
+            case WEST:
+                return new Location(x - SnakeAnnotation.GRID_SIZE, y);
+            case NONE:
+                // fall through
+            default:
+                return this;
+        }
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Location location = (Location) o;
+
+        if (x != location.x) return false;
+        if (y != location.y) return false;
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = x;
+        result = 31 * result + y;
+        return result;
+    }
+}