Split off some netpack structures into separate files

lib/networkPacks/BattleChanges.h

@@ -0,0 +1,81 @@
+/*
+ * BattleChanges.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#pragma once
+
+#include "JsonNode.h"
+
+VCMI_LIB_NAMESPACE_BEGIN
+
+class BattleChanges
+{
+public:
+	enum class EOperation : si8
+	{
+		ADD,
+		RESET_STATE,
+		UPDATE,
+		REMOVE,
+	};
+
+	JsonNode data;
+	EOperation operation = EOperation::RESET_STATE;
+
+	BattleChanges() = default;
+	explicit BattleChanges(EOperation operation_)
+		: operation(operation_)
+	{
+	}
+};
+
+class UnitChanges : public BattleChanges
+{
+public:
+	uint32_t id = 0;
+	int64_t healthDelta = 0;
+
+	UnitChanges() = default;
+	UnitChanges(uint32_t id_, EOperation operation_)
+		: BattleChanges(operation_)
+		, id(id_)
+	{
+	}
+
+	template <typename Handler> void serialize(Handler & h, const int version)
+	{
+		h & id;
+		h & healthDelta;
+		h & data;
+		h & operation;
+	}
+};
+
+class ObstacleChanges : public BattleChanges
+{
+public:
+	uint32_t id = 0;
+
+	ObstacleChanges() = default;
+
+	ObstacleChanges(uint32_t id_, EOperation operation_)
+		: BattleChanges(operation_),
+		id(id_)
+	{
+	}
+
+	template <typename Handler> void serialize(Handler & h, const int version)
+	{
+		h & id;
+		h & data;
+		h & operation;
+	}
+};
+
+VCMI_LIB_NAMESPACE_END
+