From 5fd7ae520900ca8a756ced84033fc392ef014d6e Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Fri, 31 Mar 2006 22:49:36 +0000
Subject: [PATCH] forgot 2 files

SVN-Revision: 3162
---
 src/object/gradient.cpp | 102 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/object/gradient.hpp |  61 +++++++++++++++++++++++++++++
 2 files changed, 163 insertions(+)
 create mode 100644 src/object/gradient.cpp
 create mode 100644 src/object/gradient.hpp

diff --git a/src/object/gradient.cpp b/src/object/gradient.cpp
new file mode 100644
index 000000000..a2c9a030a
--- /dev/null
+++ b/src/object/gradient.cpp
@@ -0,0 +1,102 @@
+//  $Id: background.cpp 3144 2006-03-31 10:31:03Z matzebraun $
+//
+//  SuperTux -  A Jump'n Run
+//  Copyright (C) 2004 Matthias Braun <matze@braunis.de
+//
+//  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 (at your option) 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, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#include <config.h>
+
+#include <stdexcept>
+#include "gradient.hpp"
+#include "camera.hpp"
+#include "video/drawing_context.hpp"
+#include "lisp/lisp.hpp"
+#include "lisp/writer.hpp"
+#include "object_factory.hpp"
+#include "resources.hpp"
+#include "main.hpp"
+#include "msg.hpp"
+
+Gradient::Gradient()
+  : layer(LAYER_BACKGROUND0)
+{
+}
+
+Gradient::Gradient(const lisp::Lisp& reader)
+  : layer(LAYER_BACKGROUND0)
+{
+  reader.get("layer", layer);
+  std::vector<float> bkgd_top_color, bkgd_bottom_color;
+  if(!reader.get_vector("top_color", bkgd_top_color) ||
+     !reader.get_vector("bottom_color", bkgd_bottom_color))
+    throw std::runtime_error("Must specify top_color and bottom_color in gradient");
+
+  gradient_top = Color(bkgd_top_color);
+  gradient_bottom = Color(bkgd_bottom_color);
+}
+
+Gradient::~Gradient()
+{
+}
+
+void
+Gradient::write(lisp::Writer& writer)
+{
+  writer.start_list("gradient");
+
+  std::vector<float> bkgd_top_color, bkgd_bottom_color;
+  bkgd_top_color.push_back(gradient_top.red);
+  bkgd_top_color.push_back(gradient_top.green);
+  bkgd_top_color.push_back(gradient_top.blue);
+  bkgd_bottom_color.push_back(gradient_bottom.red);
+  bkgd_bottom_color.push_back(gradient_bottom.green);
+  bkgd_bottom_color.push_back(gradient_bottom.blue);
+  writer.write_float_vector("top_color", bkgd_top_color);
+  writer.write_float_vector("bottom_color", bkgd_bottom_color);
+
+  writer.write_int("layer", layer);
+  
+  writer.end_list("gradient");
+}
+
+void
+Gradient::update(float)
+{
+}
+
+void
+Gradient::set_gradient(Color top, Color bottom)
+{
+  gradient_top = top;
+  gradient_bottom = bottom;
+  
+  if (gradient_top.red > 1.0 || gradient_top.green > 1.0
+   || gradient_top.blue > 1.0 || gradient_top.alpha > 1.0)
+    msg_warning("top gradient color has values above 1.0");
+  if (gradient_bottom.red > 1.0 || gradient_bottom.green > 1.0
+   || gradient_bottom.blue > 1.0 || gradient_bottom.alpha > 1.0)
+    msg_warning("bottom gradient color has values above 1.0");
+}
+
+void
+Gradient::draw(DrawingContext& context)
+{
+  context.push_transform();
+  context.set_translation(Vector(0, 0));
+  context.draw_gradient(gradient_top, gradient_bottom, layer);
+  context.pop_transform();
+}
+
+IMPLEMENT_FACTORY(Gradient, "gradient");
diff --git a/src/object/gradient.hpp b/src/object/gradient.hpp
new file mode 100644
index 000000000..e43eb956e
--- /dev/null
+++ b/src/object/gradient.hpp
@@ -0,0 +1,61 @@
+//  $Id: background.hpp 3144 2006-03-31 10:31:03Z matzebraun $
+//
+//  SuperTux -  A Jump'n Run
+//  Copyright (C) 2006 Matthias Braun <matze@braunis.de
+//
+//  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 (at your option) 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, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#ifndef SUPERTUX_GRADIENT_H
+#define SUPERTUX_GRADIENT_H
+
+#include <memory>
+#include "video/surface.hpp"
+#include "video/drawing_context.hpp"
+#include "game_object.hpp"
+#include "serializable.hpp"
+
+class DisplayManager;
+
+namespace lisp {
+class Lisp;
+}
+
+class Gradient : public GameObject, public Serializable
+{
+public:
+  Gradient();
+  Gradient(const lisp::Lisp& reader);
+  virtual ~Gradient();
+
+  virtual void write(lisp::Writer& writer);
+
+  void set_gradient(Color top, Color bottom);
+
+  Color get_gradient_top() const
+  { return gradient_top; }
+  
+  Color get_gradient_bottom() const
+  { return gradient_bottom; }
+
+  virtual void update(float elapsed_time);
+
+  virtual void draw(DrawingContext& context);
+
+private:
+  int layer;
+  Color gradient_top, gradient_bottom;
+};
+
+#endif /*SUPERTUX_BACKGROUND_H*/
+
-- 
2.11.0