ObjectDirection.java

package com.osroyale.game.world.object;
 
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 
import java.util.Map;
import java.util.Optional;

 
public enum ObjectDirection {

    NORTH(1),

    SOUTH(3),

    EAST(2),

    WEST(0);

    private final int id;

    ObjectDirection(int id) {
        this.id = id;
    }

    public final int getId() {
        return id;
    }
 
    private static final ObjectDirection[] values = values();

    private static final Int2ObjectMap<ObjectDirection> idToDirection = new Int2ObjectOpenHashMap<>(values.length);
 
    /* Populates the {@link #values} cache. */
    static {
        for (ObjectDirection orientation : values) {
            idToDirection.put(orientation.getId(), orientation);
        }
    }

    public static Optional<ObjectDirection> valueOf(final int id) {
        return Optional.ofNullable(idToDirection.get(id));
    }
 
}