bukkit/hoeruputils/WhereisCommand.java

package dk.thoerup.bukkit.hoeruputils;

import org.bukkit.Location;
import org.bukkit.Server;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

public class WhereisCommand implements CommandExecutor {
        
        Server server;
        
        public WhereisCommand(Server server) {
                this.server = server;
        }

        @Override
        public boolean onCommand(final CommandSender sender, Command command, String label, String[] args) {
                
                if (!(sender instanceof Player)) {
                        sender.sendMessage("Whereis: What are you");
                        return true;
                }
                
                if (args.length != 1) {
                        sender.sendMessage("Usage: /whereis <playername>");
                        return true;
                }
                
                Player target = server.getPlayer(args[0]);
                 
                if (target == null) {
                        sender.sendMessage("Whereis: Could not find player: " + args[0] );
                        return true;
                }
                
                Location targetLoc = target.getLocation();
                Player player = (Player) sender;
                
                int dist = calcDistance(player.getLocation(), targetLoc);
                int bearing = calcBearing(player.getLocation(), targetLoc);


                target.sendMessage("Whereis: you are tracked by " + player.getName() );
                
                player.sendMessage("Whereis: " + target.getName() + " is at " + (int)targetLoc.getX() + "," + (int)targetLoc.getY() + "," +(int)targetLoc.getZ() );
                player.sendMessage("Distance: " + dist + ", bearing: " + bearing + "(" + getBearingStr(bearing) + ")" );
                
                return true;
        }

        public static String getBearingStr(int angle) {
                if (angle < 22) {
                        return "N";
                } else if (angle < 67) {
                        return "NE";
                } else if (angle < 112) {
                        return "E";
                } else if (angle < 157) {
                        return "SE";
                } else if (angle < 202) {
                        return "S";
                } else if (angle < 257) {
                        return "SW";
                } else if (angle < 292) {
                        return "W";
                } else if (angle < 337) {
                        return "NW";
                } else {
                        return "N";
                }
        }

        public static int calcDistance(Location loc1, Location loc2) {
                double distX = loc1.getX() - loc2.getX()  ;
                double distZ = loc1.getZ() - loc2.getZ()  ;

                int dist = (int) Math.round( Math.sqrt( (distX*distX) + (distZ*distZ)) );

                return dist;
        }

        public static int calcBearing(Location loc1, Location loc2) {
                double distX = loc1.getX() - loc2.getX()  ;
                double distZ = loc1.getZ() - loc2.getZ()  ;

                double angle = Math.toDegrees( Math.atan( distZ / distX ) );
                if (angle < 0.0) 
                        angle += 90.0;


                if (distX >= 0.0 && distZ >= 0.0) { //both positive, 0-90 degrees
                        //do nothing
                } else if (distX < 0.0 && distZ >= 0.0) { // 90-180 degrees
                        angle += 90.0;
                } else if (distX < 0.0 && distZ < 0.0) {//Both negative 180-270 degrees
                        angle += 180.0; 
                } else {
                        angle += 270.0;
                }

                return (int) angle;
        }

        
}
1	package dk.thoerup.bukkit.hoeruputils;
2
3	import org.bukkit.Location;
4	import org.bukkit.Server;
5	import org.bukkit.command.Command;
6	import org.bukkit.command.CommandExecutor;
7	import org.bukkit.command.CommandSender;
8	import org.bukkit.entity.Player;
9
10	public class WhereisCommand implements CommandExecutor {
11
12	Server server;
13
14	public WhereisCommand(Server server) {
15	this.server = server;
16	}
17
18	@Override
19	public boolean onCommand(final CommandSender sender, Command command, String label, String[] args) {
20
21	if (!(sender instanceof Player)) {
22	sender.sendMessage("Whereis: What are you");
23	return true;
24	}
25
26	if (args.length != 1) {
27	sender.sendMessage("Usage: /whereis <playername>");
28	return true;
29	}
30
31	Player target = server.getPlayer(args[0]);
32
33	if (target == null) {
34	sender.sendMessage("Whereis: Could not find player: " + args[0] );
35	return true;
36	}
37
38	Location targetLoc = target.getLocation();
39	Player player = (Player) sender;
40
41	int dist = calcDistance(player.getLocation(), targetLoc);
42	int bearing = calcBearing(player.getLocation(), targetLoc);
43
44
45	target.sendMessage("Whereis: you are tracked by " + player.getName() );
46
47	player.sendMessage("Whereis: " + target.getName() + " is at " + (int)targetLoc.getX() + "," + (int)targetLoc.getY() + "," +(int)targetLoc.getZ() );
48	player.sendMessage("Distance: " + dist + ", bearing: " + bearing + "(" + getBearingStr(bearing) + ")" );
49
50	return true;
51	}
52
53	public static String getBearingStr(int angle) {
54	if (angle < 22) {
55	return "N";
56	} else if (angle < 67) {
57	return "NE";
58	} else if (angle < 112) {
59	return "E";
60	} else if (angle < 157) {
61	return "SE";
62	} else if (angle < 202) {
63	return "S";
64	} else if (angle < 257) {
65	return "SW";
66	} else if (angle < 292) {
67	return "W";
68	} else if (angle < 337) {
69	return "NW";
70	} else {
71	return "N";
72	}
73	}
74
75	public static int calcDistance(Location loc1, Location loc2) {
76	double distX = loc1.getX() - loc2.getX() ;
77	double distZ = loc1.getZ() - loc2.getZ() ;
78
79	int dist = (int) Math.round( Math.sqrt( (distXdistX) + (distZdistZ)) );
80
81	return dist;
82	}
83
84	public static int calcBearing(Location loc1, Location loc2) {
85	double distX = loc1.getX() - loc2.getX() ;
86	double distZ = loc1.getZ() - loc2.getZ() ;
87
88	double angle = Math.toDegrees( Math.atan( distZ / distX ) );
89	if (angle < 0.0)
90	angle += 90.0;
91
92
93	if (distX >= 0.0 && distZ >= 0.0) { //both positive, 0-90 degrees
94	//do nothing
95	} else if (distX < 0.0 && distZ >= 0.0) { // 90-180 degrees
96	angle += 90.0;
97	} else if (distX < 0.0 && distZ < 0.0) {//Both negative 180-270 degrees
98	angle += 180.0;
99	} else {
100	angle += 270.0;
101	}
102
103	return (int) angle;
104	}
105
106
107	}