Initial commit: wowee native WoW 3.3.5a client

src/network/packet.cpp

@@ -0,0 +1,90 @@
+#include "network/packet.hpp"
+#include <cstring>
+
+namespace wowee {
+namespace network {
+
+Packet::Packet(uint16_t opcode) : opcode(opcode) {}
+
+Packet::Packet(uint16_t opcode, const std::vector<uint8_t>& data)
+    : opcode(opcode), data(data), readPos(0) {}
+
+void Packet::writeUInt8(uint8_t value) {
+    data.push_back(value);
+}
+
+void Packet::writeUInt16(uint16_t value) {
+    data.push_back(value & 0xFF);
+    data.push_back((value >> 8) & 0xFF);
+}
+
+void Packet::writeUInt32(uint32_t value) {
+    data.push_back(value & 0xFF);
+    data.push_back((value >> 8) & 0xFF);
+    data.push_back((value >> 16) & 0xFF);
+    data.push_back((value >> 24) & 0xFF);
+}
+
+void Packet::writeUInt64(uint64_t value) {
+    writeUInt32(value & 0xFFFFFFFF);
+    writeUInt32((value >> 32) & 0xFFFFFFFF);
+}
+
+void Packet::writeString(const std::string& value) {
+    for (char c : value) {
+        data.push_back(static_cast<uint8_t>(c));
+    }
+    data.push_back(0); // Null terminator
+}
+
+void Packet::writeBytes(const uint8_t* bytes, size_t length) {
+    data.insert(data.end(), bytes, bytes + length);
+}
+
+uint8_t Packet::readUInt8() {
+    if (readPos >= data.size()) return 0;
+    return data[readPos++];
+}
+
+uint16_t Packet::readUInt16() {
+    uint16_t value = 0;
+    value |= readUInt8();
+    value |= (readUInt8() << 8);
+    return value;
+}
+
+uint32_t Packet::readUInt32() {
+    uint32_t value = 0;
+    value |= readUInt8();
+    value |= (readUInt8() << 8);
+    value |= (readUInt8() << 16);
+    value |= (readUInt8() << 24);
+    return value;
+}
+
+uint64_t Packet::readUInt64() {
+    uint64_t value = readUInt32();
+    value |= (static_cast<uint64_t>(readUInt32()) << 32);
+    return value;
+}
+
+float Packet::readFloat() {
+    // Read as uint32 and reinterpret as float
+    uint32_t bits = readUInt32();
+    float value;
+    std::memcpy(&value, &bits, sizeof(float));
+    return value;
+}
+
+std::string Packet::readString() {
+    std::string result;
+    while (readPos < data.size()) {
+        uint8_t c = data[readPos++];
+        if (c == 0) break;
+        result += static_cast<char>(c);
+    }
+    return result;
+}
+
+} // namespace network
+} // namespace wowee