WorldPacket packet; packet << uint32_t(1234) << std::string("hello world");
WorldPacket packet; packet.WriteOpcode(0x1234); packet << uint32_t(5678) << std::string("foo bar");This example sets the opcode of the WorldPacket to 0x1234 and adds an unsigned 32-bit integer and a string to its body. It's hard to determine the exact package library being used with just these examples, as WorldPacket could be part of any game networking library. However, popular game networking libraries such as RakNet, ENet, and Boost.Asio all have their own packet classes that work in similar ways.