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-rw-r--r--src/resources/dye.cpp320
1 files changed, 320 insertions, 0 deletions
diff --git a/src/resources/dye.cpp b/src/resources/dye.cpp
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+++ b/src/resources/dye.cpp
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+/*
+ * The Mana Client
+ * Copyright (C) 2007-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 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 "resources/dye.h"
+
+#include "log.h"
+
+#include <math.h>
+#include <sstream>
+
+DyePalette::DyePalette(const std::string &description)
+{
+ int size = static_cast<int>(description.length());
+ if (size == 0)
+ return;
+ if (description[0] != '#')
+ {
+ // TODO: load palette from file.
+ return;
+ }
+
+ int pos = 1;
+ for ( ; ; )
+ {
+ if (pos + 6 > size)
+ break;
+
+ int v = 0;
+ for (int i = 0; i < 6; ++i)
+ {
+ char c = description[pos + i];
+ int n;
+
+ if ('0' <= c && c <= '9')
+ n = c - '0';
+ else if ('A' <= c && c <= 'F')
+ n = c - 'A' + 10;
+ else if ('a' <= c && c <= 'f')
+ n = c - 'a' + 10;
+ else
+ goto error;
+
+ v = (v << 4) | n;
+ }
+ Color c =
+ {
+ {
+ static_cast<unsigned char>(v >> 16),
+ static_cast<unsigned char>(v >> 8),
+ static_cast<unsigned char>(v)
+ }
+ };
+ mColors.push_back(c);
+ pos += 6;
+
+ if (pos == size)
+ return;
+ if (description[pos] != ',')
+ break;
+
+ ++pos;
+ }
+
+ error:
+ logger->log("Error, invalid embedded palette: %s", description.c_str());
+}
+
+/*
+void DyePalette::addFirstColor(const int color[3])
+{
+ Color c = { {color[0], color[1], color[2]} };
+ mColors.insert(mColors.begin(), c);
+}
+
+void DyePalette::addLastColor(const int color[3])
+{
+ Color c = { {color[0], color[1], color[2]} };
+ mColors.push_back(c);
+}
+*/
+
+void DyePalette::getColor(int intensity, int color[3]) const
+{
+ if (intensity == 0)
+ {
+ color[0] = 0;
+ color[1] = 0;
+ color[2] = 0;
+ return;
+ }
+
+ int last = static_cast<int>(mColors.size());
+ if (last == 0) return;
+
+ int i = intensity * last / 255;
+ int t = intensity * last % 255;
+
+ int j = t != 0 ? i : i - 1;
+
+ if (j >= last)
+ j = 0;
+
+ // Get the exact color if any, the next color otherwise.
+ int r2 = mColors[j].value[0],
+ g2 = mColors[j].value[1],
+ b2 = mColors[j].value[2];
+
+ if (t == 0)
+ {
+ // Exact color.
+ color[0] = r2;
+ color[1] = g2;
+ color[2] = b2;
+ return;
+ }
+
+ // Get the previous color. First color is implicitly black.
+ int r1 = 0, g1 = 0, b1 = 0;
+ if (i > 0)
+ {
+ r1 = mColors[i - 1].value[0];
+ g1 = mColors[i - 1].value[1];
+ b1 = mColors[i - 1].value[2];
+ }
+
+ // Perform a linear interpolation.
+ color[0] = ((255 - t) * r1 + t * r2) / 255;
+ color[1] = ((255 - t) * g1 + t * g2) / 255;
+ color[2] = ((255 - t) * b1 + t * b2) / 255;
+}
+
+void DyePalette::getColor(double intensity, int color[3]) const
+{
+ // Nothing to do here
+ if (mColors.size() == 0)
+ return;
+
+ // Force range
+ if (intensity > 1.0)
+ intensity = 1.0;
+ else if (intensity < 0.0)
+ intensity = 0.0;
+
+ // Scale up
+ intensity = intensity * static_cast<double>(mColors.size() - 1);
+
+ // Color indices
+ int i = static_cast<int>(floor(intensity));
+ int j = static_cast<int>(ceil(intensity));
+
+ if (i == j)
+ {
+ // Exact color.
+ color[0] = mColors[i].value[0];
+ color[1] = mColors[i].value[1];
+ color[2] = mColors[i].value[2];
+ return;
+ }
+
+ intensity -= i;
+ double rest = 1 - intensity;
+
+ // Get the colors
+ int r1 = mColors[i].value[0],
+ g1 = mColors[i].value[1],
+ b1 = mColors[i].value[2],
+ r2 = mColors[j].value[0],
+ g2 = mColors[j].value[1],
+ b2 = mColors[j].value[2];
+
+ // Perform the interpolation.
+ color[0] = static_cast<int>(rest * r1 + intensity * r2);
+ color[1] = static_cast<int>(rest * g1 + intensity * g2);
+ color[2] = static_cast<int>(rest * b1 + intensity * b2);
+}
+
+Dye::Dye(const std::string &description)
+{
+ for (int i = 0; i < 7; ++i)
+ mDyePalettes[i] = 0;
+
+ if (description.empty())
+ return;
+
+ std::string::size_type next_pos = 0, length = description.length();
+ do
+ {
+ std::string::size_type pos = next_pos;
+ next_pos = description.find(';', pos);
+
+ if (next_pos == std::string::npos)
+ next_pos = length;
+
+ if (next_pos <= pos + 3 || description[pos + 1] != ':')
+ {
+ logger->log("Error, invalid dye: %s", description.c_str());
+ return;
+ }
+
+ int i = 0;
+
+ switch (description[pos])
+ {
+ case 'R': i = 0; break;
+ case 'G': i = 1; break;
+ case 'Y': i = 2; break;
+ case 'B': i = 3; break;
+ case 'M': i = 4; break;
+ case 'C': i = 5; break;
+ case 'W': i = 6; break;
+ default:
+ logger->log("Error, invalid dye: %s", description.c_str());
+ return;
+ }
+ mDyePalettes[i] = new DyePalette(description.substr(
+ pos + 2, next_pos - pos - 2));
+ ++next_pos;
+ }
+ while (next_pos < length);
+}
+
+Dye::~Dye()
+{
+ for (int i = 0; i < 7; ++i)
+ {
+ delete mDyePalettes[i];
+ mDyePalettes[i] = 0;
+ }
+}
+
+void Dye::update(int color[3]) const
+{
+ int cmax = std::max(color[0], std::max(color[1], color[2]));
+ if (cmax == 0)
+ return;
+
+ int cmin = std::min(color[0], std::min(color[1], color[2]));
+ int intensity = color[0] + color[1] + color[2];
+
+ if (cmin != cmax &&
+ (cmin != 0 || (intensity != cmax && intensity != 2 * cmax)))
+ {
+ // not pure
+ return;
+ }
+
+ int i = (color[0] != 0) | ((color[1] != 0) << 1) | ((color[2] != 0) << 2);
+
+ if (mDyePalettes[i - 1])
+ mDyePalettes[i - 1]->getColor(cmax, color);
+}
+
+void Dye::instantiate(std::string &target, const std::string &palettes)
+{
+ std::string::size_type next_pos = target.find('|');
+
+ if (next_pos == std::string::npos || palettes.empty())
+ return;
+
+ ++next_pos;
+
+ std::ostringstream s;
+ s << target.substr(0, next_pos);
+ std::string::size_type last_pos = target.length(), pal_pos = 0;
+ do
+ {
+ std::string::size_type pos = next_pos;
+ next_pos = target.find(';', pos);
+
+ if (next_pos == std::string::npos)
+ next_pos = last_pos;
+
+ if (next_pos == pos + 1 && pal_pos != std::string::npos)
+ {
+ std::string::size_type pal_next_pos = palettes.find(';', pal_pos);
+ s << target[pos] << ':';
+ if (pal_next_pos == std::string::npos)
+ {
+ s << palettes.substr(pal_pos);
+ s << target.substr(next_pos);
+ pal_pos = std::string::npos;
+ break;
+ }
+ s << palettes.substr(pal_pos, pal_next_pos - pal_pos);
+ pal_pos = pal_next_pos + 1;
+ }
+ else if (next_pos > pos + 2)
+ {
+ s << target.substr(pos, next_pos - pos);
+ }
+ else
+ {
+ logger->log("Error, invalid dye placeholder: %s", target.c_str());
+ return;
+ }
+ s << target[next_pos];
+ ++next_pos;
+ }
+ while (next_pos < last_pos);
+
+ target = s.str();
+}
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