39 - Seamless Travel and lobby

Blaster.uproject

@@ -9,7 +9,8 @@
 			"Type": "Runtime",
 			"LoadingPhase": "Default",
 			"AdditionalDependencies": [
-				"Engine"
+				"Engine",
+				"UMG"
 			]
 		}
 	],

Config/DefaultEngine.ini

@@ -3,6 +3,7 @@
 [/Script/EngineSettings.GameMapsSettings]
 GameDefaultMap=/Game/Maps/GameStartupMap.GameStartupMap
 EditorStartupMap=/Game/Maps/GameStartupMap.GameStartupMap
+TransitionMap=/Game/Maps/TransitionMap.TransitionMap
 
 [/Script/HardwareTargeting.HardwareTargetingSettings]
 TargetedHardwareClass=Desktop

Source/Blaster/GameMode/LobbyGameMode.cpp

@@ -0,0 +1,22 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "LobbyGameMode.h"
+
+#include "GameFramework/GameStateBase.h"
+
+void ALobbyGameMode::PostLogin(APlayerController* NewPlayer)
+{
+	Super::PostLogin(NewPlayer);
+
+	int32 NumberOfPlayers = GameState.Get()->PlayerArray.Num();
+	if (NumberOfPlayers == 2)
+	{
+		UWorld* World = GetWorld();
+		if (World)
+		{
+			bUseSeamlessTravel = true;
+			World->ServerTravel(FString("/Game/Maps/BlasterMap?listen"));
+		}
+	}
+}

Source/Blaster/GameMode/LobbyGameMode.h

@@ -0,0 +1,20 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/GameMode.h"
+#include "LobbyGameMode.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class BLASTER_API ALobbyGameMode : public AGameMode
+{
+	GENERATED_BODY()
+
+public:
+
+	virtual void PostLogin(APlayerController* NewPlayer) override;
+};