Adds /seed command (FS-225) (#85)

* Create Command_seed.java

* Addresses requested changes

* My IDE decided to try to "fix" things with *s in imports

Co-authored-by: Ryan <Wild1145@users.noreply.github.com>

src/main/java/me/totalfreedom/totalfreedommod/command/Command_seed.java

@@ -0,0 +1,97 @@
+package me.totalfreedom.totalfreedommod.command;
+
+import me.totalfreedom.totalfreedommod.rank.Rank;
+import net.md_5.bungee.api.chat.BaseComponent;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.HoverEvent;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.chat.TranslatableComponent;
+import net.md_5.bungee.api.chat.hover.content.Text;
+import org.bukkit.ChatColor;
+import org.bukkit.World;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@CommandPermissions(level = Rank.NON_OP, source = SourceType.BOTH)
+@CommandParameters(description = "Get the seed of the world you are currently in.", usage = "/seed [world]")
+public class Command_seed extends FreedomCommand
+{
+    @Override
+    public boolean run(CommandSender sender, Player playerSender, Command cmd, String commandLabel, String[] args, boolean senderIsConsole)
+    {
+        World world;
+
+        if (args.length > 0)
+        {
+            world = server.getWorld(args[0]);
+            if (world == null)
+            {
+                msg("That world could not be found", ChatColor.RED);
+                return true;
+            }
+        }
+        else
+        {
+            // If the sender is a Player, use that world. Otherwise, use the overworld as a fallback.
+            if (!senderIsConsole)
+            {
+                world = playerSender.getWorld();
+            }
+            else
+            {
+                world = server.getWorlds().get(0);
+            }
+        }
+
+        // If the sender is not a Player, use the usual msg method to
+        if (senderIsConsole)
+        {
+            msg("Seed: [" + ChatColor.GREEN + world.getSeed() + ChatColor.WHITE + "]", ChatColor.WHITE);
+        }
+        else
+        {
+            // Gets the seed for later uses
+            String seed = String.valueOf(world.getSeed());
+
+            // This is a really stupid hack to get things to play nicely, but it works so I don't give a damn
+            BaseComponent[] components = {new TranslatableComponent("chat.copy.click")};
+            TextComponent seedAsComponent = new TextComponent(seed);
+
+            // Style the message like in vanilla Minecraft.
+            seedAsComponent.setColor(ChatColor.GREEN.asBungee());
+            seedAsComponent.setClickEvent(new ClickEvent(ClickEvent.Action.COPY_TO_CLIPBOARD, seed));
+            seedAsComponent.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new Text(components)));
+
+            // Enclose the seed with brackets
+            TextComponent seedString = new TextComponent("[");
+            seedString.addExtra(seedAsComponent);
+            seedString.addExtra("]");
+
+            // Send the message to the player.
+            TranslatableComponent response = new TranslatableComponent("commands.seed.success", seedString);
+            playerSender.spigot().sendMessage(response);
+        }
+        return true;
+    }
+
+    @Override
+    public List<String> getTabCompleteOptions(CommandSender sender, Command command, String alias, String[] args)
+    {
+        if (args.length == 1)
+        {
+            // Returns a list of worlds on the server and returns it
+            List<String> worlds = new ArrayList<>();
+            for (World world : server.getWorlds())
+            {
+                worlds.add(world.getName());
+            }
+            return worlds;
+        }
+
+        return null;
+    }
+}