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#include "world.h"
#include <libxml/parser.h>
#include <stdexcept>
#include <cstring>
#include "consts.h"
inline xmlChar* getProp(xmlNodePtr node, const char* attr)
{
xmlChar* key = xmlGetProp(node, reinterpret_cast<const xmlChar*>(attr));
if (key == nullptr)
{
throw std::invalid_argument("Error parsing world file");
}
return key;
}
World::World(std::string filename)
{
xmlDocPtr doc = xmlParseFile(filename.c_str());
if (doc == nullptr)
{
throw std::invalid_argument("Cannot find world file");
}
xmlNodePtr top = xmlDocGetRootElement(doc);
if (top == nullptr)
{
throw std::invalid_argument("Error parsing world file");
}
if (xmlStrcmp(top->name, reinterpret_cast<const xmlChar*>("world")))
{
throw std::invalid_argument("Error parsing world file");
}
xmlChar* key = nullptr;
key = getProp(top, "startx");
startX_ = atoi(reinterpret_cast<char*>(key));
xmlFree(key);
key = getProp(top, "starty");
startY_ = atoi(reinterpret_cast<char*>(key));
xmlFree(key);
key = getProp(top, "startmap");
startMap_ = atoi(reinterpret_cast<char*>(key));
xmlFree(key);
for (xmlNodePtr node = top->xmlChildrenNode;
node != nullptr;
node = node->next)
{
if (!xmlStrcmp(node->name, reinterpret_cast<const xmlChar*>("map")))
{
key = getProp(node, "id");
size_t mapId = atoi(reinterpret_cast<char*>(key));
xmlFree(key);
key = getProp(node, "title");
std::string mapTitle(reinterpret_cast<char*>(key));
xmlFree(key);
std::vector<int> mapTiles;
for (xmlNodePtr mapNode = node->xmlChildrenNode;
mapNode != nullptr;
mapNode = mapNode->next)
{
if (!xmlStrcmp(
mapNode->name,
reinterpret_cast<const xmlChar*>("environment")))
{
key = xmlNodeGetContent(mapNode);
mapTiles.clear();
mapTiles.push_back(atoi(strtok(reinterpret_cast<char*>(key), ",\n")));
for (size_t i = 1; i < (MAP_WIDTH * MAP_HEIGHT); i++)
{
mapTiles.push_back(atoi(strtok(nullptr, ",\n")));
}
xmlFree(key);
}
}
maps_.emplace(
std::piecewise_construct,
std::forward_as_tuple(mapId),
std::forward_as_tuple(
mapId,
std::move(mapTiles),
std::move(mapTitle)));
}
}
xmlFreeDoc(doc);
}
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