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#include "messages.h"
using namespace message;
/* MessageBase */
MessageBase::MessageBase() {
type = MSG_TYPE_NONE;
}
void MessageBase::send(boost::asio::ip::tcp::socket& socket) {
boost::asio::write(socket, boost::asio::buffer(&type, sizeof(type)));
boost::asio::write(socket, b);
}
std::size_t MessageBase::payload_size() {
return 0;
}
void MessageBase::read(boost::asio::ip::tcp::socket& socket) {
boost::asio::streambuf::mutable_buffers_type buf = b.prepare(payload_size());
std::size_t size = boost::asio::read(socket, buf);
b.commit(size);
}
uint8_t MessageBase::read_type(boost::asio::ip::tcp::socket& socket) {
uint8_t type;
boost::asio::read(socket, boost::asio::buffer(&type, sizeof(uint8_t)));
return type;
}
/* Hello */
Hello::Hello() {
type = MSG_TYPE_HELLO;
}
Hello::Hello(uint8_t version) {
type = MSG_TYPE_HELLO;
std::ostream os(&b);
os.write((const char*)&version, sizeof(version));
}
std::size_t Hello::payload_size() {
return sizeof(uint8_t);
}
uint8_t Hello::read_version() {
std::istream is(&b);
uint8_t version;
is.read((char*)&version, sizeof(version));
b.consume(sizeof(version));
return version;
}
/* Pos */
Pos::Pos() {
type = MSG_TYPE_POS;
}
Pos::Pos(float x, float y, float z) {
type = MSG_TYPE_POS;
std::ostream os(&b);
os.write((const char*)&x, sizeof(x));
os.write((const char*)&y, sizeof(y));
os.write((const char*)&z, sizeof(z));
}
std::size_t Pos::payload_size() {
return sizeof(float)*3;
}
void Pos::get_pos(float& x, float& y, float& z) {
std::istream is(&b);
is.read((char*)&x, sizeof(x));
is.read((char*)&y, sizeof(y));
is.read((char*)&z, sizeof(z));
}
/* Chunk */
Chunk::Chunk() {
type = MSG_TYPE_CHUNK;
got_coords = false;
}
Chunk::Chunk(int64_t x, int64_t y) {
type = MSG_TYPE_CHUNK;
std::ostream os(&b);
os.write((const char*)&x, sizeof(x));
os.write((const char*)&y, sizeof(y));
got_coords = true;
}
// TODO: move this elsewhere
const int chunk_size = 32;
const int chunk_size_total = chunk_size + 3;
std::size_t Chunk::payload_size() {
return (got_coords ? sizeof(float)*chunk_size_total*chunk_size_total : sizeof(int64_t)*2);
}
void Chunk::set_data(float *data) {
std::ostream os(&b);
os.write((const char*)data, sizeof(float)*chunk_size_total*chunk_size_total);
}
float* Chunk::get_data() {
float *data = new float[chunk_size_total*chunk_size_total];
std::istream is(&b);
is.read((char*)data, sizeof(float)*chunk_size_total*chunk_size_total);
return data;
}
void Chunk::get_coords(int64_t& x, int64_t& y) {
std::istream is(&b);
is.read((char*)&x, sizeof(x));
is.read((char*)&y, sizeof(y));
got_coords = true;
}
/* Message */
Message::Message() {
type = MSG_TYPE_MSG;
str_len = 0;
got_len = false;
}
Message::Message(std::string msg) {
type = MSG_TYPE_MSG;
str_len = msg.size();
std::ostream os(&b);
os.write((const char*)&str_len, sizeof(str_len));
os.write(msg.c_str(), str_len);
got_len = true;
}
std::size_t Message::payload_size() {
return (got_len ? str_len : sizeof(uint16_t));
}
uint16_t Message::get_len() {
std::istream is(&b);
is.read((char*)&str_len, sizeof(str_len));
got_len = true;
return str_len;
}
std::string Message::get_str() {
std::string s;
char *buf = new char[str_len];
std::istream is(&b);
is.read(buf, str_len);
s.assign(buf, str_len);
delete[] buf;
return s;
}
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