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-rw-r--r--Packet.cpp102
1 files changed, 102 insertions, 0 deletions
diff --git a/Packet.cpp b/Packet.cpp
new file mode 100644
index 0000000..84cafc4
--- /dev/null
+++ b/Packet.cpp
@@ -0,0 +1,102 @@
+#include "Packet.hpp"
+
+Packet::Packet(int id) {
+ Field fLen;
+ //fLen.SetValue<VarInt>(0);
+ fLen.SetVarInt(0);
+ m_fields.push_back(fLen);
+ Field fId;
+ //fId.SetValue<VarInt>(id);
+ fId.SetVarInt(id);
+ m_fields.push_back(fId);
+}
+
+Packet Packet::operator=(Packet other) {
+ other.swap(*this);
+ return *this;
+}
+
+void Packet::swap(Packet &other) {
+ std::swap(m_fields, other.m_fields);
+ std::swap(m_data, other.m_data);
+ std::swap(m_parsePtr, other.m_parsePtr);
+ std::swap(m_dataLength, other.m_dataLength);
+}
+
+void Packet::CopyToBuff(byte *ptr) {
+ m_fields[0].SetVarInt(GetLength() - m_fields[0].GetLength());
+ for (int i = 0; i < m_fields.size(); i++) {
+ m_fields[i].CopyToBuff(ptr);
+ ptr += m_fields[i].GetLength();
+ }
+}
+
+void Packet::ParseField(FieldType type, size_t len) {
+ if (type == ByteArray && len == 0)
+ throw 118;
+ Field f = FieldParser::Parse(type, m_parsePtr, len);
+ m_fields.push_back(f);
+ m_parsePtr += f.GetLength();
+ if (m_parsePtr == m_data + m_dataLength) {
+ delete[] m_data;
+ m_data = nullptr;
+ m_dataLength = 0;
+ m_parsePtr = nullptr;
+ }
+}
+
+Packet::Packet(byte *data) {
+ Field fLen = FieldParser::Parse(VarInt, data);
+ data += fLen.GetLength();
+ Field fId = FieldParser::Parse(VarInt, data);
+ data += fId.GetLength();
+ m_dataLength = fLen.GetVarInt() - fId.GetLength();
+ m_data = new byte[m_dataLength];
+ memcpy(m_data, data, m_dataLength);
+ m_parsePtr = m_data;
+ m_fields.push_back(fLen);
+ m_fields.push_back(fId);
+}
+
+Field & Packet::GetField(int id) {
+ if (id < -2 || id >= m_fields.size() - 2)
+ throw 111;
+ return m_fields[id + 2];
+}
+
+size_t Packet::GetLength() {
+ size_t len = 0;
+ for (int i = 0; i < m_fields.size(); i++)
+ len += m_fields[i].GetLength();
+ return len + m_dataLength;
+}
+
+void Packet::AddField(Field field) {
+ m_fields.push_back(field);
+}
+
+int Packet::GetId() {
+ return m_fields[1].GetVarInt();
+}
+
+Packet::Packet(const Packet &other) {
+ if (other.m_dataLength > 0) {
+ m_dataLength = other.m_dataLength;
+ m_data = new byte[m_dataLength];
+ m_parsePtr = m_data + (other.m_data - other.m_parsePtr);
+ memcpy(m_data, other.m_data, m_dataLength);
+ }
+ m_fields = other.m_fields;
+}
+
+void Packet::ParseFieldArray(Field &field, FieldType type, size_t len) {
+ Field f = FieldParser::Parse(type, m_parsePtr, len);
+ field.Attach(f);
+ m_parsePtr += f.GetLength();
+ if (m_parsePtr == m_data + m_dataLength) {
+ delete[] m_data;
+ m_data = nullptr;
+ m_dataLength = 0;
+ m_parsePtr = nullptr;
+ }
+}