Fix character abilities not showing for others in co-op/lasting too long

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

@@ -38,6 +38,7 @@ import emu.grasscutter.server.packet.send.PacketAvatarAddNotify;
 import emu.grasscutter.server.packet.send.PacketAvatarDataNotify;
 import emu.grasscutter.server.packet.send.PacketAvatarGainCostumeNotify;
 import emu.grasscutter.server.packet.send.PacketAvatarGainFlycloakNotify;
+import emu.grasscutter.server.packet.send.PacketClientAbilityInitFinishNotify;
 import emu.grasscutter.server.packet.send.PacketCombatInvocationsNotify;
 import emu.grasscutter.server.packet.send.PacketGadgetInteractRsp;
 import emu.grasscutter.server.packet.send.PacketItemAddHintNotify;
@@ -104,6 +105,7 @@ public class GenshinPlayer {
 	@Transient private final Int2ObjectMap<CoopRequest> coopRequests;
 	@Transient private final InvokeHandler<CombatInvokeEntry> combatInvokeHandler;
 	@Transient private final InvokeHandler<AbilityInvokeEntry> abilityInvokeHandler;
+	@Transient private final InvokeHandler<AbilityInvokeEntry> clientAbilityInitFinishHandler;
 	
 	@Deprecated @SuppressWarnings({ "rawtypes", "unchecked" }) // Morphia only!
 	public GenshinPlayer() { 
@@ -126,6 +128,7 @@ public class GenshinPlayer {
 		this.coopRequests = new Int2ObjectOpenHashMap<>();
 		this.combatInvokeHandler = new InvokeHandler(PacketCombatInvocationsNotify.class);
 		this.abilityInvokeHandler = new InvokeHandler(PacketAbilityInvocationsNotify.class);
+		this.clientAbilityInitFinishHandler = new InvokeHandler(PacketClientAbilityInitFinishNotify.class);
 	}
 	
 	// On player creation
@@ -389,6 +392,10 @@ public class GenshinPlayer {
 		return this.abilityInvokeHandler;
 	}
 
+	public InvokeHandler<AbilityInvokeEntry> getClientAbilityInitFinishHandler() {
+		return clientAbilityInitFinishHandler;
+	}
+
 	public void setMpSetting(MpSettingType mpSetting) {
 		this.mpSetting = mpSetting;
 	}

src/main/java/emu/grasscutter/server/packet/recv/HandlerClientAbilityInitFinishNotify.java

@@ -0,0 +1,26 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.AbilityInvokeEntryOuterClass.AbilityInvokeEntry;
+import emu.grasscutter.net.proto.ClientAbilityInitFinishNotifyOuterClass.ClientAbilityInitFinishNotify;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.server.game.GameSession;
+
+@Opcodes(PacketOpcodes.ClientAbilityInitFinishNotify)
+public class HandlerClientAbilityInitFinishNotify extends PacketHandler {
+	
+	@Override
+	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+		ClientAbilityInitFinishNotify notif = ClientAbilityInitFinishNotify.parseFrom(payload);
+		
+		for (AbilityInvokeEntry entry : notif.getInvokesList()) {
+			session.getPlayer().getClientAbilityInitFinishHandler().addEntry(entry.getForwardType(), entry);
+		}
+		
+		if (notif.getInvokesList().size() > 0) {
+			session.getPlayer().getClientAbilityInitFinishHandler().update(session.getPlayer());
+		}
+	}
+
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerSetEntityClientDataNotify.java

@@ -1,5 +1,6 @@
 package emu.grasscutter.server.packet.recv;
 
+import emu.grasscutter.net.packet.GenshinPacket;
 import emu.grasscutter.net.packet.Opcodes;
 import emu.grasscutter.net.packet.PacketOpcodes;
 import emu.grasscutter.net.packet.PacketHandler;
@@ -10,7 +11,15 @@ public class HandlerSetEntityClientDataNotify extends PacketHandler {
 	
 	@Override
 	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
-		// Auto template
+		// Skip if there is no one to broadcast it too
+		if (session.getPlayer().getScene().getPlayerCount() <= 1) {
+			return;
+		}
+		
+		GenshinPacket packet = new GenshinPacket(PacketOpcodes.SetEntityClientDataNotify, true);
+		packet.setData(payload);
+		
+		session.getPlayer().getScene().broadcastPacketToOthers(session.getPlayer(), packet);
 	}
 
 }

src/main/java/emu/grasscutter/server/packet/send/PacketClientAbilityInitFinishNotify.java

@@ -0,0 +1,29 @@
+package emu.grasscutter.server.packet.send;
+
+import java.util.List;
+
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.AbilityInvokeEntryOuterClass.AbilityInvokeEntry;
+import emu.grasscutter.net.proto.ClientAbilityInitFinishNotifyOuterClass.ClientAbilityInitFinishNotify;
+
+public class PacketClientAbilityInitFinishNotify extends GenshinPacket {
+	
+	public PacketClientAbilityInitFinishNotify(List<AbilityInvokeEntry> entries) {
+		super(PacketOpcodes.ClientAbilityInitFinishNotify, true);
+
+		int entityId = 0;
+		
+		if (entries.size() > 0) {
+			AbilityInvokeEntry entry = entries.get(0);
+			entityId = entry.getEntityId();
+		}
+		
+		ClientAbilityInitFinishNotify proto = ClientAbilityInitFinishNotify.newBuilder()
+				.setEntityId(entityId)
+				.addAllInvokes(entries)
+				.build();
+		
+		this.setData(proto);
+	}
+}