Merged revisions 3705-3711,3714,3718,3721-3722,3729-3731,3735,3742 via svnmerge from

https://themanaworld.svn.sourceforge.net/svnroot/themanaworld/tmw/trunk
(dynamic recoloring of sprites and related changes)

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  r3705 | gmelquio | 2007-11-03 10:58:25 +0100 (Sat, 03 Nov 2007) | 1 line
  
  Fixed double load of hair graphics.
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  r3706 | gmelquio | 2007-11-03 22:04:51 +0100 (Sat, 03 Nov 2007) | 1 line
  
  Added automatic recoloring of images. Inspired by fungos' ideas (PR #41).
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  r3707 | gmelquio | 2007-11-03 22:08:21 +0100 (Sat, 03 Nov 2007) | 1 line
  
  Experimented recoloring on scorpions.
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  r3708 | gmelquio | 2007-11-04 12:52:44 +0100 (Sun, 04 Nov 2007) | 1 line
  
  Tightened palette handling.
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  r3709 | gmelquio | 2007-11-04 12:54:31 +0100 (Sun, 04 Nov 2007) | 1 line
  
  Experimented with scorpions again.
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  r3710 | gmelquio | 2007-11-04 16:40:37 +0100 (Sun, 04 Nov 2007) | 1 line
  
  Applied recoloring to hair styles.
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  r3711 | gmelquio | 2007-11-04 17:50:37 +0100 (Sun, 04 Nov 2007) | 1 line
  
  Converted slimes to recoloring.
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  r3742 | gmelquio | 2007-11-16 14:16:00 +0100 (Fri, 16 Nov 2007) | 1 line
  
  Sped up recoloring of transparent pixels.
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1 files changed, 96 insertions, 0 deletions

diff --git a/src/resources/dye.h b/src/resources/dye.h
new file mode 100644
index 00000000..fe8669bb
--- /dev/null
+++ b/src/resources/dye.h
@@ -0,0 +1,96 @@
+/*
+ *  The Mana World
+ *  Copyright 2007 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World 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.
+ *
+ *  The Mana World 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 The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id: dye.h 3706 2007-11-03 21:04:51Z gmelquio $
+ */
+
+#ifndef _TMW_DYE_H
+#define _TMW_DYE_H
+
+#include <vector>
+
+/**
+ * Class for performing a linear interpolation between colors.
+ */
+class Palette
+{
+    public:
+
+        /**
+         * Creates a palette based on the given string.
+         * The string is either a file name or a sequence of hexadecimal RGB
+         * values separated by ',' and starting with '#'.
+         */
+        Palette(std::string const &);
+
+        /**
+         * Gets a pixel color depending on its intensity.
+         */
+        void getColor(int intensity, int color[3]) const;
+
+    private:
+
+        struct Color { unsigned char value[3]; };
+
+        std::vector< Color > mColors;
+};
+
+/**
+ * Class for dispatching pixel-recoloring amongst several palettes.
+ */
+class Dye
+{
+    public:
+
+        /**
+         * Creates a set of palettes based on the given string.
+         *
+         * The parts of string are separated by semi-colons. Each part starts
+         * by an uppercase letter, followed by a colon and then a palette name.
+         */
+        Dye(std::string const &);
+
+        /**
+         * Destroys the associated palettes.
+         */
+        ~Dye();
+
+        /**
+         * Modifies a pixel color.
+         */
+        void update(int color[3]) const;
+
+        /**
+         * Fills the blank in a dye placeholder with some palette names.
+         */
+        static void instantiate(std::string &target,
+                                std::string const &palettes);
+
+    private:
+
+        /**
+         * The order of the palettes, as well as their uppercase letter, is:
+         *
+         * Red, Green, Yellow, Blue, Magenta, White (or rather gray).
+         */
+        Palette *mPalettes[7];
+};
+
+#endif