Add Teleport command

src/main/java/emu/grasscutter/command/commands/PositionCommand.java

@@ -17,6 +17,7 @@ public final class PositionCommand implements CommandHandler {
             return;
         }
 
-        sender.dropMessage(String.format("Coord: %.3f, %.3f, %.3f", sender.getPos().getX(), sender.getPos().getY(), sender.getPos().getZ()));
+        sender.dropMessage(String.format("Coord: %.3f, %.3f, %.3f\nScene id: %d",
+                sender.getPos().getX(), sender.getPos().getY(), sender.getPos().getZ(), sender.getSceneId()));
     }
 }

src/main/java/emu/grasscutter/command/commands/TelePortCommand.java

@@ -0,0 +1,43 @@
+package emu.grasscutter.command.commands;
+
+import emu.grasscutter.command.Command;
+import emu.grasscutter.command.CommandHandler;
+import emu.grasscutter.game.GenshinPlayer;
+import emu.grasscutter.utils.Position;
+
+import java.util.List;
+
+@Command(label = "teleport", usage = "teleport <x> <y> <z>", aliases = {"tp"},
+        description = "Change the player's position.", permission = "player.teleport")
+public class TelePortCommand implements CommandHandler {
+
+    @Override
+    public void execute(GenshinPlayer sender, List<String> args) {
+        if (sender == null) {
+            CommandHandler.sendMessage(null, "Run this command in-game.");
+            return;
+        }
+
+        if (args.size() < 3){
+            CommandHandler.sendMessage(sender, "Usage: /tp <x> <y> <z> [scene id]");
+            return;
+        }
+
+        try {
+            float x = Float.parseFloat(args.get(0));
+            float y = Float.parseFloat(args.get(1));
+            float z = Float.parseFloat(args.get(2));
+            int sceneId = sender.getSceneId();
+            if (args.size() == 4){
+                sceneId = Integer.parseInt(args.get(3));
+            }
+            Position target = new Position(x, y, z);
+            boolean result = sender.getWorld().transferPlayerToScene(sender, sceneId, target);
+            if (!result) {
+                CommandHandler.sendMessage(sender, "Invalid position.");
+            }
+        } catch (NumberFormatException ignored) {
+            CommandHandler.sendMessage(sender, "Invalid position.");
+        }
+    }
+}