Spawn the player at the scene's start position when sent to a dungeon

src/main/java/emu/grasscutter/data/excels/dungeon/DungeonData.java

@@ -6,6 +6,9 @@ import emu.grasscutter.data.ResourceType;
 import emu.grasscutter.data.excels.RewardPreviewData;
 import emu.grasscutter.game.dungeons.enums.*;
 import java.util.List;
+
+import emu.grasscutter.scripts.data.SceneMeta;
+import emu.grasscutter.utils.Position;
 import lombok.Getter;
 
 @ResourceType(name = "DungeonExcelConfigData.json")
@@ -62,6 +65,20 @@ public class DungeonData extends GameResource {
         return involveType;
     }
 
+    /**
+     * @return The position of the player when they enter the dungeon.
+     */
+    public Position getStartPosition() {
+        return SceneMeta.of(this.getSceneId()).config.born_pos;
+    }
+
+    /**
+     * @return The rotation of the player when they enter the dungeon.
+     */
+    public Position getStartRotation() {
+        return SceneMeta.of(this.getSceneId()).config.born_rot;
+    }
+
     @Override
     public void onLoad() {
         if (this.passRewardPreviewID > 0) {

src/main/java/emu/grasscutter/game/world/World.java

@@ -279,17 +279,25 @@ public class World implements Iterable<Player> {
 
         val sceneData = GameData.getSceneDataMap().get(sceneId);
         if (dungeonData != null) {
-            teleportProps.enterType(EnterType.ENTER_TYPE_DUNGEON).enterReason(EnterReason.DungeonEnter);
+            teleportProps.teleportTo(dungeonData.getStartPosition())
+                .teleportRot(dungeonData.getStartRotation());
+            teleportProps.enterType(EnterType.ENTER_TYPE_DUNGEON)
+                .enterReason(EnterReason.DungeonEnter);
         } else if (player.getSceneId() == sceneId) {
             teleportProps.enterType(EnterType.ENTER_TYPE_GOTO);
         } else if (sceneData != null && sceneData.getSceneType() == SceneType.SCENE_HOME_WORLD) {
             // Home
             teleportProps.enterType(EnterType.ENTER_TYPE_SELF_HOME).enterReason(EnterReason.EnterHome);
         }
+
         return transferPlayerToScene(player, teleportProps.build());
     }
 
     public boolean transferPlayerToScene(Player player, TeleportProperties teleportProperties) {
+        // Check if the teleport properties are valid.
+        if (teleportProperties.getTeleportTo() == null)
+            teleportProperties.setTeleportTo(player.getPosition());
+
         // Call player teleport event.
         PlayerTeleportEvent event =
                 new PlayerTeleportEvent(player, teleportProperties, player.getPosition());