Separating state out of the location

src/game_server/IGameServerHost.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include "IGameServer.h"
+#include <memory>
+#include <string>
+#include <vector>
+
+class AudioPlayerAsync;
+
+namespace FRG {
+
+class Location;
+struct LocationConfig;
+struct LocationSetup;
+
+// Client-only lifecycle and presentation integration for the in-process server.
+// The public gameplay contract remains IGameServer and is graphics-free.
+class IGameServerHost {
+public:
+	virtual ~IGameServerHost() = default;
+
+	virtual void initializeCampaign(
+		const std::string& campaignId, const std::string& questsPath,
+		const std::string& zipFile) = 0;
+	virtual void clearCampaign() = 0;
+	virtual void resetCampaign(
+		const std::string& questsPath, const std::string& zipFile) = 0;
+	virtual bool prepareLocation(const LocationConfig& config) = 0;
+
+	virtual void setupRuntimeLocation(
+		const std::string& id, const std::shared_ptr<Location>& location,
+		LocationSetup params, AudioPlayerAsync* audioPlayer) = 0;
+	virtual Location* runtimeLocation(const std::string& id) const = 0;
+	virtual bool hasRuntimeLocation(const std::string& id) const = 0;
+	virtual std::vector<std::string> loadedRuntimeLocationIds() const = 0;
+	virtual void clearRuntimeLocations(bool retainState) = 0;
+	virtual void bindRuntimeLocation(
+		const std::string& id, std::shared_ptr<Location> location) = 0;
+
+	virtual void update(std::int64_t deltaMs) = 0;
+	virtual void save(nlohmann::json& out) = 0;
+	virtual void load(const nlohmann::json& in) = 0;
+};
+
+} // namespace FRG