Move units into db directory.

1 files changed, 328 insertions, 0 deletions

diff --git a/src/resources/db/unitsdb.cpp b/src/resources/db/unitsdb.cpp
new file mode 100644
index 000000000..7e1e8f880
--- /dev/null
+++ b/src/resources/db/unitsdb.cpp
@@ -0,0 +1,328 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  Copyright (C) 2011-2017  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus 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 "resources/db/unitsdb.h"
+
+#include "configuration.h"
+#include "logger.h"
+
+#include "resources/beingcommon.h"
+
+#include <climits>
+
+#include "debug.h"
+
+struct UnitLevel final
+{
+    A_DEFAULT_COPY(UnitLevel)
+
+    std::string symbol;
+    int count;
+    int round;
+    std::string separator;
+};
+
+struct UnitDescription final
+{
+    A_DEFAULT_COPY(UnitDescription)
+
+    std::vector<struct UnitLevel> levels;
+    double conversion;
+    bool mix;
+};
+
+enum UnitType
+{
+    UNIT_WEIGHT = 0,
+    UNIT_CURRENCY = 1,
+    UNIT_END
+};
+
+static std::string formatUnit(const int value, const int type);
+
+static std::string splitNumber(std::string str, const std::string &separator);
+
+struct UnitDescription units[UNIT_END];
+
+void UnitsDb::loadUnits()
+{
+    {   // Setup default weight
+        UnitDescription ud;
+
+        ud.conversion = 1.0;
+        ud.mix = false;
+
+        const UnitLevel bu =
+        {
+            "g",
+            1,
+            0,
+            ""
+        };
+        ud.levels.push_back(bu);
+
+        const UnitLevel ul =
+        {
+            "kg",
+            1000,
+            2,
+            ""
+        };
+        ud.levels.push_back(ul);
+
+        units[UNIT_WEIGHT] = ud;
+    }
+
+    {   // Setup default currency
+        UnitDescription ud;
+
+        ud.conversion = 1.0;
+        ud.mix = false;
+
+        UnitLevel bu = {"¤", 1, 0, ""};
+        ud.levels.push_back(bu);
+
+        units[UNIT_CURRENCY] = ud;
+    }
+
+    loadXmlFile(paths.getStringValue("unitsFile"), SkipError_false);
+    loadXmlFile(paths.getStringValue("unitsPatchFile"), SkipError_true);
+    loadXmlDir("unitsPatchDir", loadXmlFile);
+}
+
+void UnitsDb::loadXmlFile(const std::string &fileName,
+                          const SkipError skipError)
+{
+    XML::Document doc(fileName, UseResman_true, skipError);
+    const XmlNodePtrConst root = doc.rootNode();
+
+    if (!root || !xmlNameEqual(root, "units"))
+    {
+        logger->log("Error loading unit definition file: "
+            + paths.getStringValue("unitsFile"));
+        return;
+    }
+
+    for_each_xml_child_node(node, root)
+    {
+        if (xmlNameEqual(node, "include"))
+        {
+            const std::string name = XML::getProperty(node, "name", "");
+            if (!name.empty())
+                loadXmlFile(name, skipError);
+            continue;
+        }
+        else if (xmlNameEqual(node, "unit"))
+        {
+            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);
+            bu.separator = XML::getProperty(node, "separator", " ");
+
+            ud.levels.push_back(bu);
+
+            for_each_xml_child_node(uLevel, node)
+            {
+                if (xmlNameEqual(uLevel, "level"))
+                {
+                    const UnitLevel ul =
+                    {
+                        XML::getProperty(uLevel, "symbol",
+                                         strprintf("¤%d", level)),
+                        XML::getProperty(uLevel, "count", -1),
+                        XML::getProperty(uLevel, "round", bu.round),
+                        XML::getProperty(uLevel, "separator", bu.separator)
+                    };
+
+                    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
+            const UnitLevel lev =
+            {
+                "",
+                INT_MAX,
+                0,
+                ""
+            };
+            ud.levels.push_back(lev);
+
+            if (type == "weight")
+                units[UNIT_WEIGHT] = ud;
+            else if (type == "currency")
+                units[UNIT_CURRENCY] = ud;
+            else
+                logger->log("Error unknown unit type: %s", type.c_str());
+        }
+    }
+}
+
+static std::string formatUnit(const int value,
+                              const int type)
+{
+    const 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());
+    }
+    else
+    {
+        double amount = ud.conversion * value;
+        const unsigned int sz = CAST_U32(ud.levels.size());
+
+        // 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 = CAST_S32(amount);
+            int nextAmount = 0;
+
+            if (ul.count)
+                levelAmount /= ul.count;
+
+            amount -= static_cast<double>(levelAmount * ul.count);
+
+            if (amount > 0)
+            {
+                output = splitNumber(strprintf("%.*f", pl.round,
+                    amount), pl.separator).append(pl.symbol);
+            }
+
+            for (unsigned int i = 2; i < sz; i++)
+            {
+                pl = ul;
+                ul = ud.levels[i];
+
+                if (ul.count)
+                {
+                    nextAmount = levelAmount / ul.count;
+                    levelAmount %= ul.count;
+                }
+
+                if (levelAmount > 0)
+                {
+                    output = splitNumber(strprintf("%d", levelAmount),
+                        pl.separator).append(pl.symbol).append(output);
+                }
+
+                if (!nextAmount)
+                    break;
+                levelAmount = nextAmount;
+            }
+
+            return output;
+        }
+        else
+        {
+            ul.round = 0;
+            for (unsigned int i = 0; i < sz; i++)
+            {
+                ul = ud.levels[i];
+                if (amount < ul.count && ul.count > 0)
+                {
+                    ul = ud.levels[i - 1];
+                    break;
+                }
+                if (ul.count)
+                    amount /= ul.count;
+            }
+
+            return splitNumber(strprintf("%.*f", ul.round, amount),
+                ul.separator).append(ul.symbol);
+        }
+    }
+}
+
+std::string UnitsDb::formatCurrency(const int value)
+{
+    return formatUnit(value, UNIT_CURRENCY);
+}
+
+std::string UnitsDb::formatWeight(const int value)
+{
+    return formatUnit(value, UNIT_WEIGHT);
+}
+
+static std::string splitNumber(std::string str,
+                               const std::string &separator)
+{
+    std::string lastPart;
+    const size_t point = str.find('.');
+    if (point != std::string::npos)
+    {
+        lastPart = str.substr(point);
+        str = str.substr(0, point);
+    }
+    std::string result;
+
+    if (!str.empty())
+    {
+        size_t sz = str.size();
+        while (sz >= 3)
+        {
+            if (sz >= 6)
+            {
+                result = std::string(separator).append(str.substr(
+                    sz - 3)).append(result);
+            }
+            else
+            {
+                result = str.substr(sz - 3).append(result);
+            }
+            str = str.substr(0, str.size() - 3);
+            sz = str.size();
+        }
+        if (!str.empty())
+        {
+            if (!result.empty())
+                result = std::string(str).append(separator).append(result);
+            else
+                result = str;
+        }
+    }
+
+    return result + lastPart;
+}