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/*
* Support for custom units
* Copyright (C) 2009 The Mana World Development Team
* Copyright (C) 2009-2012 The Mana Developers
*
* This file is part of The Mana Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "units.h"
#include "log.h"
#include "utils/stringutils.h"
#include "utils/xml.h"
#include <climits>
#include <vector>
struct UnitLevel {
std::string symbol;
int count;
int round;
};
struct UnitDescription {
std::vector<UnitLevel> levels;
double conversion;
bool mix;
};
enum UnitType {
UNIT_WEIGHT = 0,
UNIT_CURRENCY = 1,
UNIT_END
};
UnitDescription units[UNIT_END];
void Units::init()
{
{ // Setup default weight
UnitDescription ud;
ud.conversion = 1.0;
ud.mix = false;
UnitLevel bu;
bu.symbol = "g";
bu.count = 1;
bu.round = 0;
ud.levels.push_back(bu);
UnitLevel ul;
ul.symbol = "kg";
ul.count = 1000;
ul.round = 2;
ud.levels.push_back(ul);
units[UNIT_WEIGHT] = ud;
}
{ // Setup default currency
UnitDescription ud;
ud.conversion = 1.0;
ud.mix = false;
UnitLevel bu;
bu.symbol = "¤";
bu.count = 1;
bu.round = 0;
ud.levels.push_back(bu);
units[UNIT_CURRENCY] = ud;
}
}
void Units::readUnitNode(xmlNodePtr node, const std::string &filename)
{
UnitDescription ud;
int level = 1;
const std::string type = XML::getProperty(node, "type", "");
ud.conversion = XML::getProperty(node, "conversion", 1);
ud.mix = XML::getProperty(node, "mix", "no") == "yes";
UnitLevel bu;
bu.symbol = XML::getProperty(node, "base", "¤");
bu.count = 1;
bu.round = XML::getProperty(node, "round", 2);
ud.levels.push_back(bu);
for_each_xml_child_node(uLevel, node)
{
if (xmlStrEqual(uLevel->name, BAD_CAST "level"))
{
UnitLevel ul;
ul.symbol = XML::getProperty(uLevel, "symbol",
strprintf("¤%d",level));
ul.count = XML::getProperty(uLevel, "count", -1);
ul.round = XML::getProperty(uLevel, "round", bu.round);
if (ul.count > 0)
{
ud.levels.push_back(ul);
level++;
}
else
{
logger->log("Error bad unit count: %d for %s in %s",
ul.count, ul.symbol.c_str(), bu.symbol.c_str());
}
}
}
// Add one more level for saftey
UnitLevel &ll = ud.levels.emplace_back();
ll.count = INT_MAX;
ll.round = 0;
if (type == "weight")
units[UNIT_WEIGHT] = ud;
else if (type == "currency")
units[UNIT_CURRENCY] = ud;
else
logger->log("Error unknown unit type: %s in %s", type.c_str(), filename.c_str());
}
void Units::checkStatus()
{
}
std::string formatUnit(int value, int type)
{
UnitDescription ud = units[type];
UnitLevel ul;
// Shortcut for 0; do the same for values less than 0 (for now)
if (value <= 0)
{
ul = ud.levels[0];
return strprintf("0%s", ul.symbol.c_str());
}
double amount = ud.conversion * value;
// If only the first level is needed, act like mix if false
if (ud.mix && !ud.levels.empty() && ud.levels[1].count < amount)
{
std::string output;
UnitLevel pl = ud.levels[0];
ul = ud.levels[1];
int levelAmount = (int) amount;
int nextAmount;
levelAmount /= ul.count;
amount -= levelAmount * ul.count;
if (amount > 0)
{
output = strprintf("%.*f%s", pl.round, amount,
pl.symbol.c_str());
}
for (unsigned int i = 2; i < ud.levels.size(); i++)
{
pl = ul;
ul = ud.levels[i];
nextAmount = levelAmount / ul.count;
levelAmount %= ul.count;
if (levelAmount > 0) output = strprintf("%d%s",
levelAmount, pl.symbol.c_str()) + output;
if (!nextAmount)
break;
levelAmount = nextAmount;
}
return output;
}
for (unsigned int i = 0; i < ud.levels.size(); i++)
{
ul = ud.levels[i];
if (amount < ul.count && ul.count > 0)
{
ul = ud.levels[i - 1];
break;
}
amount /= ul.count;
}
return strprintf("%.*f%s", ul.round, amount, ul.symbol.c_str());
}
std::string Units::formatCurrency(int value)
{
return formatUnit(value, UNIT_CURRENCY);
}
std::string Units::formatWeight(int value)
{
return formatUnit(value, UNIT_WEIGHT);
}
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