BlockType.cpp

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// BlockType.cpp
 
// Implements the helper functions for converting Block Type string to int etc.
 
#include "Globals.h"
#include "IniFile.h"
#include "Item.h"
#include "Mobs/Monster.h"
 
 
 
 
 
class cBlockIDMap
{
    // Making the map case-insensitive:
    struct Comparator
    {
        bool operator ()(const AString & a_Item1, const AString & a_Item2) const
        {
            return (NoCaseCompare(a_Item1, a_Item2) > 0);
        }
    } ;
 
    typedef std::map<AString, std::pair<short, short>, Comparator> ItemMap;
 
public:
 
    cBlockIDMap(void)
    {
        cIniFile Ini;
        if (!Ini.ReadFile("items.ini"))
        {
            return;
        }
        int KeyID = Ini.FindKey("Items");
        if (KeyID == cIniFile::noID)
        {
            return;
        }
        int NumValues = Ini.GetNumValues(KeyID);
        for (int i = 0; i < NumValues; i++)
        {
            AString Name = Ini.GetValueName(KeyID, i);
            if (Name.empty())
            {
                continue;
            }
            AString Value = Ini.GetValue(KeyID, i);
            AddToMap(Name, Value);
        }  // for i - Ini.Values[]
    }
 
 
    int Resolve(const AString & a_ItemName)
    {
        ItemMap::iterator itr = m_Map.find(a_ItemName);
        if (itr == m_Map.end())
        {
            return -1;
        }
        return itr->second.first;
    }
 
 
    bool ResolveItem(const AString & a_ItemName, cItem & a_Item)
    {
        // Split into parts divided by either ':' or '^'
        AStringVector Split = StringSplitAndTrim(a_ItemName, ":^");
        if (Split.empty())
        {
            return false;
        }
 
        ItemMap::iterator itr = m_Map.find(Split[0]);
        if (itr != m_Map.end())
        {
            // Resolved as a string, assign the type and the default damage / count
            a_Item.m_ItemType = itr->second.first;
            a_Item.m_ItemDamage = itr->second.second;
            if (a_Item.m_ItemDamage == -1)
            {
                a_Item.m_ItemDamage = 0;
            }
        }
        else
        {
            // Not a resolvable string, try pure numbers: "45:6", "45^6" etc.
            if (!StringToInteger(Split[0], a_Item.m_ItemType))
            {
                // Parsing the number failed
                return false;
            }
        }
 
        // Parse the damage, if present:
        if (Split.size() < 2)
        {
            // Not present, set the item as valid and return success:
            a_Item.m_ItemCount = 1;
            return true;
        }
 
        if (!StringToInteger(Split[1], a_Item.m_ItemDamage))
        {
            // Parsing the number failed
            return false;
        }
        a_Item.m_ItemCount = 1;
        return true;
    }
 
 
    AString Desolve(short a_ItemType, short a_ItemDamage)
    {
        // First try an exact match, both ItemType and ItemDamage ("birchplanks=5:2"):
        for (ItemMap::iterator itr = m_Map.begin(), end = m_Map.end(); itr != end; ++itr)
        {
            if ((itr->second.first == a_ItemType) && (itr->second.second == a_ItemDamage))
            {
                return itr->first;
            }
        }  // for itr - m_Map[]
 
        // There is no exact match, try matching ItemType only ("planks=5"):
        if (a_ItemDamage == 0)
        {
            for (ItemMap::iterator itr = m_Map.begin(), end = m_Map.end(); itr != end; ++itr)
            {
                if ((itr->second.first == a_ItemType) && (itr->second.second == -1))
                {
                    return itr->first;
                }
            }  // for itr - m_Map[]
        }
 
        // No match at all, synthesize a string ("5:1"):
        AString res;
        if (a_ItemDamage == -1)
        {
            res = fmt::format(FMT_STRING("{}"), a_ItemType);
        }
        else
        {
            res = fmt::format(FMT_STRING("{}:{}"), a_ItemType, a_ItemDamage);
        }
        return res;
    }
 
 
protected:
    ItemMap m_Map;
 
 
    void AddToMap(const AString & a_Name, const AString & a_Value)
    {
        AStringVector Split = StringSplit(a_Value, ":");
        if (Split.size() == 1)
        {
            Split = StringSplit(a_Value, "^");
        }
        if (Split.empty())
        {
            return;
        }
        short ItemType;
        if (!StringToInteger(Split[0], ItemType))
        {
            ASSERT(!"Invalid item type");
        }
        short ItemDamage = -1;
        if (Split.size() > 1 && !StringToInteger(Split[1], ItemDamage))
        {
            ASSERT(!"Invalid item damage");
        }
        m_Map[a_Name] = std::make_pair(ItemType, ItemDamage);
    }
} ;
 
 
 
 
static cBlockIDMap & GetBlockIDMap()
{
    static cBlockIDMap IDMap;
    return IDMap;
}
 
 
 
 
 
/*
// Quick self-test:
class Tester
{
public:
    Tester(void)
    {
        cItem Item;
        gsBlockIDMap.ResolveItem("charcoal", Item);
        AString Charcoal = gsBlockIDMap.Desolve(Item.m_ItemType, Item.m_ItemDamage);
        ASSERT(Charcoal == "charcoal");
    }
} test;
//*/
 
 
 
 
 
int BlockStringToType(const AString & a_BlockTypeString)
{
    int res = atoi(a_BlockTypeString.c_str());
    if ((res != 0) || (a_BlockTypeString.compare("0") == 0))
    {
        // It was a valid number, return that
        return res;
    }
 
    return GetBlockIDMap().Resolve(TrimString(a_BlockTypeString));
}
 
 
 
 
 
bool StringToItem(const AString & a_ItemTypeString, cItem & a_Item)
{
    AString ItemName = TrimString(a_ItemTypeString);
    if (ItemName.substr(0, 10) == "minecraft:")
    {
        ItemName = ItemName.substr(10);
    }
 
    return GetBlockIDMap().ResolveItem(ItemName, a_Item);
}
 
 
 
 
 
AString ItemToString(const cItem & a_Item)
{
    return GetBlockIDMap().Desolve(a_Item.m_ItemType, a_Item.m_ItemDamage);
}
 
 
 
 
 
AString ItemTypeToString(short a_ItemType)
{
    return GetBlockIDMap().Desolve(a_ItemType, -1);
}
 
 
 
 
 
AString ItemToFullString(const cItem & a_Item)
{
    return fmt::format(FMT_STRING("{}:{} * {:d}"), ItemToString(a_Item), a_Item.m_ItemDamage, a_Item.m_ItemCount);
}
 
 
 
 
 
cItem GetIniItemSet(cIniFile & a_IniFile, const char * a_Section, const char * a_Key, const char * a_Default)
{
    AString ItemStr = a_IniFile.GetValueSet(a_Section, a_Key, a_Default);
    cItem res;
    if (!StringToItem(ItemStr, res))
    {
        res.Empty();
    }
    return res;
}