mirror of
https://github.com/ErikasKontenis/SabrehavenServer.git
synced 2025-05-03 19:09:19 +02:00
136 lines
3.1 KiB
C++
136 lines
3.1 KiB
C++
/**
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* Tibia GIMUD Server - a free and open-source MMORPG server emulator
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* Copyright (C) 2019 Sabrehaven and Mark Samman <mark.samman@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "otpch.h"
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#include "networkmessage.h"
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#include "container.h"
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#include "creature.h"
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std::string NetworkMessage::getString(uint16_t stringLen/* = 0*/)
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{
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if (stringLen == 0) {
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stringLen = get<uint16_t>();
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}
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if (!canRead(stringLen)) {
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return std::string();
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}
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char* v = reinterpret_cast<char*>(buffer) + info.position; //does not break strict aliasing
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info.position += stringLen;
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return std::string(v, stringLen);
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}
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Position NetworkMessage::getPosition()
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{
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Position pos;
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pos.x = get<uint16_t>();
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pos.y = get<uint16_t>();
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pos.z = getByte();
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return pos;
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}
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void NetworkMessage::addString(const std::string& value)
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{
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size_t stringLen = value.length();
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if (!canAdd(stringLen + 2) || stringLen > 8192) {
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return;
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}
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add<uint16_t>(stringLen);
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memcpy(buffer + info.position, value.c_str(), stringLen);
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info.position += stringLen;
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info.length += stringLen;
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}
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void NetworkMessage::addDouble(double value, uint8_t precision/* = 2*/)
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{
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addByte(precision);
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add<uint32_t>((value * std::pow(static_cast<float>(10), precision)) + std::numeric_limits<int32_t>::max());
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}
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void NetworkMessage::addBytes(const char* bytes, size_t size)
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{
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if (!canAdd(size) || size > 8192) {
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return;
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}
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memcpy(buffer + info.position, bytes, size);
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info.position += size;
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info.length += size;
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}
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void NetworkMessage::addPaddingBytes(size_t n)
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{
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if (!canAdd(n)) {
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return;
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}
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memset(buffer + info.position, 0x33, n);
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info.length += n;
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}
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void NetworkMessage::addPosition(const Position& pos)
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{
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add<uint16_t>(pos.x);
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add<uint16_t>(pos.y);
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addByte(pos.z);
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}
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void NetworkMessage::addItem(uint16_t id, uint8_t count)
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{
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const ItemType& it = Item::items[id];
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if (it.disguise) {
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add<uint16_t>(it.disguiseId);
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} else {
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add<uint16_t>(it.id);
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}
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if (it.stackable) {
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addByte(count);
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} else if (it.isSplash() || it.isFluidContainer()) {
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addByte(getLiquidColor(count));
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}
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}
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void NetworkMessage::addItem(const Item* item)
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{
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const ItemType& it = Item::items[item->getID()];
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if (it.disguise) {
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add<uint16_t>(it.disguiseId);
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} else {
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add<uint16_t>(it.id);
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}
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if (it.stackable) {
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addByte(std::min<uint16_t>(0xFF, item->getItemCount()));
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} else if (it.isSplash() || it.isFluidContainer()) {
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addByte(getLiquidColor(item->getFluidType()));
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}
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}
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void NetworkMessage::addItemId(uint16_t itemId)
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{
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add<uint16_t>(itemId);
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}
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