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cuberite-2a/src/WorldStorage/EnchantmentSerializer.cpp

89 lines
2.5 KiB
C++

#include "Globals.h"
#include "EnchantmentSerializer.h"
#include "Enchantments.h"
#include "FastNBT.h"
void EnchantmentSerializer::WriteToNBTCompound(cEnchantments const& a_Enchantments, cFastNBTWriter & a_Writer, const AString & a_ListTagName)
{
// Write the enchantments into the specified NBT writer
// begin with the LIST tag of the specified name ("ench" or "StoredEnchantments")
a_Writer.BeginList(a_ListTagName, TAG_Compound);
for (cEnchantments::cMap::const_iterator itr = a_Enchantments.m_Enchantments.begin(), end = a_Enchantments.m_Enchantments.end(); itr != end; ++itr)
{
a_Writer.BeginCompound("");
a_Writer.AddShort("id", itr->first);
a_Writer.AddShort("lvl", itr->second);
a_Writer.EndCompound();
} // for itr - m_Enchantments[]
a_Writer.EndList();
}
void EnchantmentSerializer::ParseFromNBT(cEnchantments& a_Enchantments, const cParsedNBT & a_NBT, int a_EnchListTagIdx)
{
// Read the enchantments from the specified NBT list tag (ench or StoredEnchantments)
// Verify that the tag is a list:
if (a_NBT.GetType(a_EnchListTagIdx) != TAG_List)
{
LOGWARNING("%s: Invalid EnchListTag type: exp %d, got %d. Enchantments not parsed",
__FUNCTION__, TAG_List, a_NBT.GetType(a_EnchListTagIdx)
);
ASSERT(!"Bad EnchListTag type");
return;
}
// Verify that the list is of Compounds:
if (a_NBT.GetChildrenType(a_EnchListTagIdx) != TAG_Compound)
{
LOGWARNING("%s: Invalid NBT list children type: exp %d, got %d. Enchantments not parsed",
__FUNCTION__, TAG_Compound, a_NBT.GetChildrenType(a_EnchListTagIdx)
);
ASSERT(!"Bad EnchListTag children type");
return;
}
a_Enchantments.Clear();
// Iterate over all the compound children, parse an enchantment from each:
for (int tag = a_NBT.GetFirstChild(a_EnchListTagIdx); tag >= 0; tag = a_NBT.GetNextSibling(tag))
{
// tag is the compound inside the "ench" list tag
ASSERT(a_NBT.GetType(tag) == TAG_Compound);
// Search for the id and lvl tags' values:
int id = -1, lvl = -1;
for (int ch = a_NBT.GetFirstChild(tag); ch >= 0; ch = a_NBT.GetNextSibling(ch))
{
if (a_NBT.GetType(ch) != TAG_Short)
{
continue;
}
if (a_NBT.GetName(ch) == "id")
{
id = a_NBT.GetShort(ch);
}
else if (a_NBT.GetName(ch) == "lvl")
{
lvl = a_NBT.GetShort(ch);
}
} // for ch - children of the compound tag
if ((id == -1) || (lvl <= 0))
{
// Failed to parse either the id or the lvl, skip this compound
continue;
}
// Store the enchantment:
a_Enchantments.m_Enchantments[id] = lvl;
} // for tag - children of the ench list tag
}