001    package org.bukkit.command.defaults;
002    
003    import java.util.List;
004    
005    import org.apache.commons.lang.Validate;
006    import org.bukkit.Bukkit;
007    import org.bukkit.ChatColor;
008    import org.bukkit.Location;
009    import org.bukkit.command.Command;
010    import org.bukkit.command.CommandSender;
011    import org.bukkit.entity.Player;
012    import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
013    
014    import com.google.common.collect.ImmutableList;
015    
016    public class TeleportCommand extends VanillaCommand {
017    
018        public TeleportCommand() {
019            super("tp");
020            this.description = "Teleports the given player (or yourself) to another player or coordinates";
021            this.usageMessage = "/tp [player] <target> and/or <x> <y> <z>";
022            this.setPermission("bukkit.command.teleport");
023        }
024    
025        @Override
026        public boolean execute(CommandSender sender, String currentAlias, String[] args) {
027            if (!testPermission(sender)) return true;
028            if (args.length < 1 || args.length > 4) {
029                sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
030                return false;
031            }
032    
033            Player player;
034    
035            if (args.length == 1 || args.length == 3) {
036                if (sender instanceof Player) {
037                    player = (Player) sender;
038                } else {
039                    sender.sendMessage("Please provide a player!");
040                    return true;
041                }
042            } else {
043                player = Bukkit.getPlayerExact(args[0]);
044            }
045    
046            if (player == null) {
047                sender.sendMessage("Player not found: " + args[0]);
048                return true;
049            }
050    
051            if (args.length < 3) {
052                Player target = Bukkit.getPlayerExact(args[args.length - 1]);
053                if (target == null) {
054                    sender.sendMessage("Can't find player " + args[args.length - 1] + ". No tp.");
055                    return true;
056                }
057                player.teleport(target, TeleportCause.COMMAND);
058                Command.broadcastCommandMessage(sender, "Teleported " + player.getDisplayName() + " to " + target.getDisplayName());
059            } else if (player.getWorld() != null) {
060                Location playerLocation = player.getLocation();
061                double x = getCoordinate(sender, playerLocation.getX(), args[args.length - 3]);
062                double y = getCoordinate(sender, playerLocation.getY(), args[args.length - 2], 0, 0);
063                double z = getCoordinate(sender, playerLocation.getZ(), args[args.length - 1]);
064    
065                if (x == MIN_COORD_MINUS_ONE || y == MIN_COORD_MINUS_ONE || z == MIN_COORD_MINUS_ONE) {
066                    sender.sendMessage("Please provide a valid location!");
067                    return true;
068                }
069    
070                playerLocation.setX(x);
071                playerLocation.setY(y);
072                playerLocation.setZ(z);
073    
074                player.teleport(playerLocation, TeleportCause.COMMAND);
075                Command.broadcastCommandMessage(sender, String.format("Teleported %s to %.2f, %.2f, %.2f", player.getDisplayName(), x, y, z));
076            }
077            return true;
078        }
079    
080        private double getCoordinate(CommandSender sender, double current, String input) {
081            return getCoordinate(sender, current, input, MIN_COORD, MAX_COORD);
082        }
083    
084        private double getCoordinate(CommandSender sender, double current, String input, int min, int max) {
085            boolean relative = input.startsWith("~");
086            double result = relative ? current : 0;
087    
088            if (!relative || input.length() > 1) {
089                boolean exact = input.contains(".");
090                if (relative) input = input.substring(1);
091    
092                double testResult = getDouble(sender, input);
093                if (testResult == MIN_COORD_MINUS_ONE) {
094                    return MIN_COORD_MINUS_ONE;
095                }
096                result += testResult;
097    
098                if (!exact && !relative) result += 0.5f;
099            }
100            if (min != 0 || max != 0) {
101                if (result < min) {
102                    result = MIN_COORD_MINUS_ONE;
103                }
104    
105                if (result > max) {
106                    result = MIN_COORD_MINUS_ONE;
107                }
108            }
109    
110            return result;
111        }
112    
113        @Override
114        public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
115            Validate.notNull(sender, "Sender cannot be null");
116            Validate.notNull(args, "Arguments cannot be null");
117            Validate.notNull(alias, "Alias cannot be null");
118    
119            if (args.length == 1 || args.length == 2) {
120                return super.tabComplete(sender, alias, args);
121            }
122            return ImmutableList.of();
123        }
124    }