1  package hlt;
 2  
 3  public class Command {
 4      public final String command;
 5  
 6      public static Command spawnShip() {
 7          return new Command("g");
 8      }
 9  
10      public static Command transformShipIntoDropoffSite(final EntityId id) {
11          return new Command("c " + id);
12      }
13  
14      public static Command move(final EntityId id, final Direction direction) {
15          return new Command("m " + id + ' ' + direction.charValue);
16      }
17  
18      private Command(final String command) {
19          this.command = command;
20      }
21  
22      @Override
23      public boolean equals(Object o) {
24          if (this == o) return true;
25          if (o == null || getClass() != o.getClass()) return false;
26  
27          Command command1 = (Command) o;
28  
29          return command.equals(command1.command);
30      }
31  
32      @Override
33      public int hashCode() {
34          return command.hashCode();
35      }
36  
37      @Override
38      public String toString() {
39          return command;
40      }
41  }