cube-game-plus-plus/common/network/Packet.cpp

#define ENET_IMPLEMENTATION
#include "common/enet/enet.h"

#include "common/network/Packet.h"

Packet::Packet(ENetPacket* packet) : packet(packet), readIndex(0), error(false) {
}

Packet::~Packet() {
    enet_packet_destroy(packet);
}

bool Packet::hasData() const {
    return readIndex < packet->dataLength;
}

bool Packet::hasError() const {
    return error;
}

void Packet::read(void* buffer, uint length) {
    if(readIndex + length > packet->dataLength) {
        error = true;
        return;
    }
    memcpy(buffer, packet->data + readIndex, length);
    readIndex += length;
}

u8 Packet::readU8() {
    u8 uc;
    read(&uc, sizeof (u8));
    return uc;
}

u16 Packet::readU16() {
    u16 us;
    read(&us, sizeof (u16));
    us = ntohs(us);
    return us;
}

u32 Packet::readU32() {
    u32 ui;
    read(&ui, sizeof (u32));
    ui = ntohl(ui);
    return ui;
}