Fix issue with a player not being able to spawn when they join somone in co-op...

Fix issue with a player not being able to spawn when they join somone in co-op with a singleplayer team of more than the max allowed amount

src/main/java/emu/grasscutter/game/TeamManager.java

@@ -158,7 +158,7 @@ public class TeamManager {
 	}
 	
 	public boolean isSpawned() {
-		return getPlayer().getWorld() != null && getPlayer().getScene().getEntities().containsKey(getCurrentAvatarEntity().getId());
+		return getPlayer().getScene() != null && getPlayer().getScene().getEntities().containsKey(getCurrentAvatarEntity().getId());
 	}
 	
 	public int getMaxTeamSize() {
@@ -256,7 +256,7 @@ public class TeamManager {
 		updateTeamResonances();
 		
 		// Packets
-		getPlayer().getScene().broadcastPacket(new PacketSceneTeamUpdateNotify(getPlayer()));
+		getPlayer().getWorld().broadcastPacket(new PacketSceneTeamUpdateNotify(getPlayer()));
 		
 		// Run callback
 		if (responsePacket != null) {

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

@@ -152,6 +152,7 @@ public class World implements Iterable<GenshinPlayer> {
 		// Copy main team to mp team
 		if (this.isMultiplayer()) {
 			player.getTeamManager().getMpTeam().copyFrom(player.getTeamManager().getCurrentSinglePlayerTeamInfo(), player.getTeamManager().getMaxTeamSize());
+			player.getTeamManager().setCurrentCharacterIndex(0);
 		}
 		
 		// Add to scene

src/main/java/emu/grasscutter/game/managers/MultiplayerManager.java

@@ -95,14 +95,14 @@ public class MultiplayerManager {
 			hostPlayer.sendPacket(new PacketPlayerEnterSceneNotify(hostPlayer, hostPlayer, EnterType.EnterSelf, EnterReason.HostFromSingleToMp, hostPlayer.getScene().getId(), hostPlayer.getPos()));
 		}
 		
-		// Make requester join
-		hostPlayer.getWorld().addPlayer(requester);
-		
 		// Set scene pos and id of requester to the host player's
 		requester.getPos().set(hostPlayer.getPos());
 		requester.getRotation().set(hostPlayer.getRotation());
 		requester.setSceneId(hostPlayer.getSceneId());
 		
+		// Make requester join
+		hostPlayer.getWorld().addPlayer(requester);
+
 		// Packet
 		requester.sendPacket(new PacketPlayerEnterSceneNotify(requester, hostPlayer, EnterType.EnterOther, EnterReason.TeamJoin, hostPlayer.getScene().getId(), hostPlayer.getPos()));
 	}