From: Matthias Braun <matze@braunis.de>
Date: Sun, 2 Oct 2005 22:57:31 +0000 (+0000)
Subject: - Allow custom leveldots
X-Git-Url: https://git.octo.it/?a=commitdiff_plain;ds=sidebyside;h=efc61e9d05b077f13a76982590fb0bd6a9d8dc61;p=supertux.git

- Allow custom leveldots
- Fix some crashs (end of level, end of worldmap)
- Commit the non finished lightmap stuff I tried at the meeting...

SVN-Revision: 2800
---

diff --git a/configure.ac b/configure.ac
index d6326805f..0affc1a37 100644
--- a/configure.ac
+++ b/configure.ac
@@ -89,12 +89,6 @@ AM_ICONV
 AC_SUBST([ICONV_LIBS], [$LIBICONV])
 
 dnl ===========================================================================
-dnl Check for OpenGL
-AX_CHECK_GL
-if test "$no_gl" = "yes"; then
-  AC_MSG_ERROR([Please install opengl libraries and headers])
-fi
-
 dnl Check for SDL
 SDL_VERSION=1.2.4
 AM_PATH_SDL($SDL_VERSION,
@@ -130,6 +124,15 @@ NP_FINDLIB([OPENAL], [OpenAL], [OpenAL],
          [AC_MSG_ERROR([Please intall OpenAL])],
          [], [])
 
+AX_CHECK_GL
+if test "$no_gl" = "yes"; then
+  AC_MSG_ERROR([Please install opengl libraries and headers])
+fi
+AX_CHECK_GLU
+if test "$no_glu" = "yes"; then
+  AC_MSG_ERROR([Please install opengl utility libraries and headers])
+fi
+
 dnl Checks for library functions.
 AC_CHECK_FUNCS(mkdir strdup strstr)
 
diff --git a/data/images/sprites.strf b/data/images/sprites.strf
index 336e28514..1e44e8dc0 100644
--- a/data/images/sprites.strf
+++ b/data/images/sprites.strf
@@ -1679,6 +1679,14 @@
       (images "powerups/potions/blue-potion.png")
     )
   )
+
+  (sprite
+    (name "lightmap_light")
+    (action
+      (name "default")
+      (images "effects/light_red.png")
+    )
+  )
   
   (sprite
     (name "eat-me")
@@ -1754,7 +1762,7 @@
       (name "default")
       (images "objects/keys/key_gold.png")
     )
-   (action
+    (action
       (name "display")
       (images "objects/keys/display_gold.png")
     )
@@ -1763,5 +1771,20 @@
       (images "objects/keys/outline_gold.png")
     )
   )
+  (sprite
+    (name "leveldot")
+    (action
+      (name "default")
+      (x-offset 16)
+      (y-offset 16)
+      (images "worldmap/common/leveldot_red.png")
+    )
+    (action
+      (name "solved")
+      (x-offset 16)
+      (y-offset 16)
+      (images "worldmap/common/leveldot_green.png")
+    )
+  )
 )
 
diff --git a/data/levels/test/light.stl b/data/levels/test/light.stl
new file mode 100644
index 000000000..c6cabc495
--- /dev/null
+++ b/data/levels/test/light.stl
@@ -0,0 +1,83 @@
+;SuperTux level made using the built-in leveleditor
+(supertux-level
+  (version 1)
+  (name "One Block Fall-through / Spikes")
+  (author "")
+  (music "chipdisko.ogg")
+  (background "arctis.jpg")
+  (particle_system "")
+  (bkgd_speed 50)
+  (bkgd_red_top 50)
+  (bkgd_green_top 150)
+  (bkgd_blue_top 150)
+  (bkgd_red_bottom 150)
+  (bkgd_green_bottom 150)
+  (bkgd_blue_bottom 150)
+  (time 500)
+  (width 150)
+  (height 15)
+  (back_scrolling #f)
+  (hor_autoscroll_speed 0.0)
+  (gravity 10.0)
+  (background-tm  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0 
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+)
+(reset-points
+)
+(objects
+  (light )
+  (mriceblock (x 666) (y 68) (stay-on-platform #f))
+  (mriceblock (x 892) (y 70) (stay-on-platform #f))
+  (mriceblock (x 1146) (y 69) (stay-on-platform #f))
+  (mriceblock (x 1363) (y 58) (stay-on-platform #f))
+  (mriceblock (x 1180) (y 15) (stay-on-platform #f))
+  (mriceblock (x 939) (y 22) (stay-on-platform #f))
+  (mriceblock (x 703) (y 25) (stay-on-platform #f))
+  (stalactite (x 322) (y 287) (stay-on-platform #f))
+)
+)
diff --git a/data/levels/test/wansti-level4.stl b/data/levels/test/wansti-level4.stl
index 1746aef4d..4b43abd39 100644
--- a/data/levels/test/wansti-level4.stl
+++ b/data/levels/test/wansti-level4.stl
@@ -168,11 +168,6 @@
           (powerup
             (sprite "red-potion")
             (script "
-function wait(time) {
-  set_wakeup_time(time);
-  suspend();
-}
-
 DisplayEffect.set_black(true);
 wait(0.1);
 DisplayEffect.set_black(false);
diff --git a/src/Jamfile b/src/Jamfile
index 38492e855..3b93511f4 100644
--- a/src/Jamfile
+++ b/src/Jamfile
@@ -24,7 +24,7 @@ TRANSLATABLE_SOURCES += [ SearchSource $(sources) ] ;
 Application supertux : $(sources) $(wrapper_objects) ;
 C++Flags supertux : -DAPPDATADIR='\"$(appdatadir)\"' ;
 LinkWith supertux : squirrel ;
-ExternalLibs supertux : SDL SDLIMAGE GL OPENAL VORBIS VORBISFILE OGG ICONV PHYSFS BINRELOC ;
+ExternalLibs supertux : SDL SDLIMAGE GL GLU OPENAL VORBIS VORBISFILE OGG ICONV PHYSFS BINRELOC ;
 Help supertux : "Build the supertux executable" ;
 IncludeDir supertux : squirrel/include ;
 
diff --git a/src/control/joystickkeyboardcontroller.cpp b/src/control/joystickkeyboardcontroller.cpp
index 0fb4d9ee9..c840019a4 100644
--- a/src/control/joystickkeyboardcontroller.cpp
+++ b/src/control/joystickkeyboardcontroller.cpp
@@ -253,7 +253,7 @@ JoystickKeyboardController::process_event(const SDL_Event& event)
           (event.key.keysym.unicode & 0xFF80) == 0) {
         memmove(last_keys, last_keys+1, sizeof(last_keys)-1);
         last_keys[sizeof(last_keys)-1] = event.key.keysym.unicode;
-        if(GameSession::current())
+        if(GameSession::current() != NULL)
           GameSession::current()->try_cheats();
       }
 			
diff --git a/src/game_session.cpp b/src/game_session.cpp
index b7985bbb6..2aa30368a 100644
--- a/src/game_session.cpp
+++ b/src/game_session.cpp
@@ -147,6 +147,8 @@ GameSession::~GameSession()
   delete end_sequence_controller;
   delete level;
   delete context;
+
+  current_ = NULL;
 }
 
 void
diff --git a/src/gameconfig.hpp b/src/gameconfig.hpp
index 8fdaff123..b4172210b 100644
--- a/src/gameconfig.hpp
+++ b/src/gameconfig.hpp
@@ -31,7 +31,8 @@ public:
   void save();
 
   /** screen width in pixel (warning: this is the real screen width+height,
-   * supertux is using a logical width+height and not this one)
+   * you should use the logical SCREEN_WIDTH and SCREEN_HEIGHT for your
+   * rendering code.)
    */
   int screenwidth;
   int screenheight;
diff --git a/src/object/light.cpp b/src/object/light.cpp
new file mode 100644
index 000000000..ebd8146ac
--- /dev/null
+++ b/src/object/light.cpp
@@ -0,0 +1,37 @@
+#include <config.h>
+
+#include "light.hpp"
+#include "sprite/sprite_manager.hpp"
+#include "resources.hpp"
+#include "video/drawing_context.hpp"
+#include "object_factory.hpp"
+#include "player.hpp"
+#include "sector.hpp"
+
+Light::Light(const lisp::Lisp& )
+{
+  sprite = sprite_manager->create("lightmap_light");
+}
+
+Light::~Light()
+{
+  delete sprite;
+}
+
+void
+Light::update(float )
+{
+}
+
+void
+Light::draw(DrawingContext& context)
+{
+  context.push_target();
+  context.set_target(DrawingContext::LIGHTMAP);
+  
+  sprite->draw(context, Sector::current()->player->get_pos(), 0);
+  
+  context.pop_target();
+}
+
+IMPLEMENT_FACTORY(Light, "light");
diff --git a/src/object/light.hpp b/src/object/light.hpp
new file mode 100644
index 000000000..4178034a1
--- /dev/null
+++ b/src/object/light.hpp
@@ -0,0 +1,41 @@
+//  $Id$
+//
+//  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.
+#ifndef __LIGHT_HPP__
+#define __LIGHT_HPP__
+
+#include "game_object.hpp"
+#include "lisp/lisp.hpp"
+
+class Sprite;
+
+class Light : public GameObject
+{
+public:
+  Light(const lisp::Lisp& reader);
+  virtual ~Light();
+
+  void update(float elapsed_time);
+  void draw(DrawingContext& context);
+
+private:
+  Sprite* sprite;
+};
+
+#endif
+
diff --git a/src/object/player.cpp b/src/object/player.cpp
index 5c48e8cd6..95052a4d1 100644
--- a/src/object/player.cpp
+++ b/src/object/player.cpp
@@ -41,6 +41,7 @@
 #include "trigger/trigger_base.hpp"
 #include "control/joystickkeyboardcontroller.hpp"
 #include "main.hpp"
+#include "player_status.hpp"
 
 static const int TILES_FOR_BUTTJUMP = 3;
 static const float SHOOTING_TIME = .150;
diff --git a/src/object/player.hpp b/src/object/player.hpp
index 56f8269d2..4da2676de 100644
--- a/src/object/player.hpp
+++ b/src/object/player.hpp
@@ -29,8 +29,8 @@
 #include "sprite/sprite.hpp"
 #include "physic.hpp"
 #include "control/controller.hpp"
-#include "player_status.hpp"
 #include "scripting/player.hpp"
+#include "player_status.hpp"
 
 class BadGuy;
 class Portable;
diff --git a/src/player_status.cpp b/src/player_status.cpp
index 50623be8e..29ed5bb10 100644
--- a/src/player_status.cpp
+++ b/src/player_status.cpp
@@ -231,3 +231,15 @@ PlayerStatus::draw(DrawingContext& context)
 
   context.pop_transform();
 }
+
+void
+PlayerStatus::operator= (const PlayerStatus& other)
+{
+  coins = other.coins;
+  lives = other.lives;
+  bonus = other.bonus;
+  score_multiplier = other.score_multiplier;
+  max_score_multiplier = other.max_score_multiplier;
+  keys = other.keys;
+}
+
diff --git a/src/player_status.hpp b/src/player_status.hpp
index 06db4f1ce..ce3dee092 100644
--- a/src/player_status.hpp
+++ b/src/player_status.hpp
@@ -19,6 +19,7 @@
 #ifndef SUPERTUX_PLAYERSTATUS_H
 #define SUPERTUX_PLAYERSTATUS_H
 
+#include <assert.h>
 #include "lisp/lisp.hpp"
 #include "timer.hpp"
 #include "serializable.hpp"
@@ -58,6 +59,8 @@ public:
 
   int score_multiplier;
   int max_score_multiplier;
+
+  void operator= (const PlayerStatus& other);
   
   enum {
     KEY_BRASS  = 0x001,
@@ -68,6 +71,9 @@ public:
   };
 
 private:
+  // don't use this
+  PlayerStatus(const PlayerStatus& other);
+  
   int  keys;
   Sprite* key_iron;
   Sprite* key_brass;
diff --git a/src/sprite/sprite_data.hpp b/src/sprite/sprite_data.hpp
index f9a87a3d2..3850141dd 100644
--- a/src/sprite/sprite_data.hpp
+++ b/src/sprite/sprite_data.hpp
@@ -59,10 +59,6 @@ private:
 	  /** Frames per second */
 	  float fps;
 
-	  /** Mirror is used to avoid duplicating left and right side
-	    sprites */
-	  // bool mirror;
-
 	  std::vector<Surface*> surfaces;
 	};
 
diff --git a/src/video/drawing_context.cpp b/src/video/drawing_context.cpp
index 7c8369527..48b9c9776 100644
--- a/src/video/drawing_context.cpp
+++ b/src/video/drawing_context.cpp
@@ -21,20 +21,44 @@
 #include <algorithm>
 #include <cassert>
 #include <iostream>
+#include <SDL_image.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
 
 #include "drawing_context.hpp"
 #include "surface.hpp"
 #include "font.hpp"
 #include "main.hpp"
 #include "gameconfig.hpp"
+#include "glutil.hpp"
+#include "texture.hpp"
 
-DrawingContext::DrawingContext(SDL_Surface* targetsurface)
+#define LIGHTMAP_DIV 4
+
+static inline int next_po2(int val)
 {
-  if(targetsurface) {
-    screen = targetsurface;
-  } else {
-    screen = SDL_GetVideoSurface();
-  }
+  int result = 1;
+  while(result < val)
+    result *= 2;
+  
+  return result;
+}
+
+DrawingContext::DrawingContext()
+{
+  screen = SDL_GetVideoSurface();
+
+  lightmap_width = screen->w / LIGHTMAP_DIV;
+  lightmap_height = screen->h / LIGHTMAP_DIV;
+  int width = next_po2(lightmap_width);
+  int height = next_po2(lightmap_height);
+
+  lightmap.reset(new Texture(width, height, GL_RGB));
+
+  lightmap_uv_right = static_cast<float>(lightmap_width) / static_cast<float>(width);
+  lightmap_uv_bottom = static_cast<float>(lightmap_height) / static_cast<float>(height);
+
+  requests = &drawing_requests;
 }
 
 DrawingContext::~DrawingContext()
@@ -62,7 +86,7 @@ DrawingContext::draw_surface(const Surface* surface, const Vector& position,
   request.alpha = transform.alpha;
   request.request_data = const_cast<Surface*> (surface);  
 
-  drawingrequests.push_back(request);
+  requests->push_back(request);
 }
 
 void
@@ -101,7 +125,7 @@ DrawingContext::draw_surface_part(const Surface* surface, const Vector& source,
   }
   request.request_data = surfacepartrequest;
 
-  drawingrequests.push_back(request);
+  requests->push_back(request);
 }
 
 void
@@ -123,7 +147,7 @@ DrawingContext::draw_text(const Font* font, const std::string& text,
   textrequest->alignment = alignment;
   request.request_data = textrequest;
 
-  drawingrequests.push_back(request);
+  requests->push_back(request);
 }
 
 void
@@ -152,7 +176,7 @@ DrawingContext::draw_gradient(Color top, Color bottom, int layer)
   gradientrequest->bottom = bottom;
   request.request_data = gradientrequest;
 
-  drawingrequests.push_back(request);
+  requests->push_back(request);
 }
 
 void
@@ -177,7 +201,7 @@ DrawingContext::draw_filled_rect(const Vector& topleft, const Vector& size,
               * ((float) transform.alpha / 255.0));
   request.request_data = fillrectrequest;
 
-  drawingrequests.push_back(request);
+  requests->push_back(request);
 }
 
 void
@@ -256,13 +280,85 @@ DrawingContext::do_drawing()
 {
 #ifdef DEBUG
   assert(transformstack.empty());
+  assert(target_stack.empty());
 #endif
   transformstack.clear();
+  target_stack.clear();
+
+  bool use_lightmap = lightmap_requests.size() != 0;
+  
+  // PART1: create lightmap
+  if(use_lightmap) {
+    glViewport(0, screen->h - lightmap_height, lightmap_width, lightmap_height);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();               
+    glOrtho(0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, -1.0, 1.0);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    glClearColor(1, 1, 1, 1);
+    glClear(GL_COLOR_BUFFER_BIT);
+    handle_drawing_requests(lightmap_requests);
+    lightmap_requests.clear();
+  
+    glDisable(GL_BLEND);
+    glEnable(GL_TEXTURE_2D);
+    glBindTexture(GL_TEXTURE_2D, lightmap->handle);
+    glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, screen->h - lightmap_height, lightmap_width, lightmap_height);
+
+    glViewport(0, 0, screen->w, screen->h);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();               
+    glOrtho(0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, -1.0, 1.0);
+    glMatrixMode(GL_MODELVIEW);    
+    glLoadIdentity();
+  }
+
+  //glClear(GL_COLOR_BUFFER_BIT);
+  handle_drawing_requests(drawing_requests);
+  drawing_requests.clear();
+
+  if(use_lightmap) {
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_DST_COLOR, GL_ZERO);
+    //glDisable(GL_BLEND);
+    //glColor4f((float) rand() / (float) RAND_MAX, .22, .88, 1.0f);
+
+    glEnable(GL_TEXTURE_2D);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_ALPHA_TEST);    
+
+    glBindTexture(GL_TEXTURE_2D, lightmap->handle);
+    glBegin(GL_QUADS);
+
+    glTexCoord2f(0, lightmap_uv_bottom);
+    glVertex2f(0, 0);
+
+    glTexCoord2f(lightmap_uv_right, lightmap_uv_bottom);
+    glVertex2f(SCREEN_WIDTH, 0);
+
+    glTexCoord2f(lightmap_uv_right, 0);
+    glVertex2f(SCREEN_WIDTH, SCREEN_HEIGHT);
+
+    glTexCoord2f(0, 0);
+    glVertex2f(0, SCREEN_HEIGHT);
     
-  std::stable_sort(drawingrequests.begin(), drawingrequests.end());
+    glEnd();
+  }
 
-  for(DrawingRequests::iterator i = drawingrequests.begin();
-      i != drawingrequests.end(); ++i) {
+  assert_gl("drawing");
+
+  SDL_GL_SwapBuffers();
+}
+
+void
+DrawingContext::handle_drawing_requests(DrawingRequests& requests)
+{
+  std::stable_sort(requests.begin(), requests.end());
+  
+  for(DrawingRequests::iterator i = requests.begin();
+      i != requests.end(); ++i) {
     switch(i->type) {
       case SURFACE:
       {
@@ -290,11 +386,6 @@ DrawingContext::do_drawing()
         break;
     }
   }
-
-  drawingrequests.clear();
-
-  // update screen
-  SDL_GL_SwapBuffers();
 }
 
 void
@@ -341,3 +432,27 @@ DrawingContext::get_alpha() const
 {
   return transform.alpha;
 }
+
+void
+DrawingContext::push_target()
+{
+  target_stack.push_back(target);
+}
+
+void
+DrawingContext::pop_target()
+{
+  set_target(target_stack.back());
+  target_stack.pop_back();
+}
+
+void
+DrawingContext::set_target(Target target)
+{
+  this->target = target;
+  if(target == LIGHTMAP)
+    requests = &lightmap_requests;
+  else
+    requests = &drawing_requests;
+}
+
diff --git a/src/video/drawing_context.hpp b/src/video/drawing_context.hpp
index f105ea125..b3b6d284f 100644
--- a/src/video/drawing_context.hpp
+++ b/src/video/drawing_context.hpp
@@ -25,6 +25,7 @@
 
 #include <SDL.h>
 #include <stdint.h>
+#include <memory>
 
 #include "math/vector.hpp"
 #include "video/screen.hpp"
@@ -32,6 +33,7 @@
 #include "video/font.hpp"
 
 class Surface;
+class Texture;
 
 // some constants for predefined layer values
 enum {
@@ -46,7 +48,6 @@ enum {
   LAYER_GUI         = 500
 };
 
-/// Handles drawing of things.
 /**
  * This class provides functions for drawing things on screen. It also
  * maintains a stack of transforms that are applied to graphics.
@@ -54,7 +55,7 @@ enum {
 class DrawingContext
 {
 public:
-  DrawingContext(SDL_Surface* targetsurface = 0);
+  DrawingContext();
   ~DrawingContext();
   
   /// Adds a drawing request for a surface into the request list.
@@ -100,6 +101,13 @@ public:
   void set_alpha(uint8_t alpha);
   /// return currently set alpha
   uint8_t get_alpha() const;
+
+  enum Target {
+    NORMAL, LIGHTMAP
+  };
+  void push_target();
+  void pop_target();
+  void set_target(Target target);
   
 private:
   class Transform
@@ -124,6 +132,19 @@ private:
   std::vector<Transform> transformstack;
   /// the currently active transform
   Transform transform;
+
+  class Blend
+  {
+  public:
+    GLenum sfactor;
+    GLenum dfactor;
+    
+    Blend()
+      : sfactor(GL_SRC_ALPHA), dfactor(GL_ONE_MINUS_SRC_ALPHA)
+    {}
+  };
+  std::vector<Blend> blend_stack;
+  Blend blend_mode;
   
   enum RequestType
   {
@@ -164,6 +185,7 @@ private:
     uint32_t drawing_effect;
     float zoom;
     int alpha;
+    Blend blend;
     
     void* request_data;
     
@@ -172,17 +194,27 @@ private:
       return layer < other.layer;
     }
   };
+
+  typedef std::vector<DrawingRequest> DrawingRequests;
   
+  void handle_drawing_requests(DrawingRequests& requests);
   void draw_surface_part(DrawingRequest& request);
   void draw_text(DrawingRequest& request);
   void draw_text_center(DrawingRequest& request);
   void draw_gradient(DrawingRequest& request);
   void draw_filled_rect(DrawingRequest& request);
   
-  typedef std::vector<DrawingRequest> DrawingRequests;
-  DrawingRequests drawingrequests;
+  DrawingRequests drawing_requests;
+  DrawingRequests lightmap_requests;
+
+  DrawingRequests* requests;
 
   SDL_Surface* screen;
+  Target target;
+  std::vector<Target> target_stack;
+  std::auto_ptr<Texture> lightmap;
+  int lightmap_width, lightmap_height;
+  float lightmap_uv_right, lightmap_uv_bottom;
 };
 
 #endif
diff --git a/src/video/glutil.hpp b/src/video/glutil.hpp
new file mode 100644
index 000000000..f7d43109c
--- /dev/null
+++ b/src/video/glutil.hpp
@@ -0,0 +1,41 @@
+//  $Id$
+//
+//  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.
+#ifndef __GLUTIL_HPP__
+#define __GLUTIL_HPP__
+
+#include <sstream>
+#include <stdexcept>
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+static inline void assert_gl(const char* message)
+{
+#ifdef DEBUG
+  GLenum error = glGetError();
+  if(error != GL_NO_ERROR) {
+    std::ostringstream msg;
+    msg << "OpenGLError while '" << message << "': "
+        << gluErrorString(error);
+    throw std::runtime_error(msg.str());
+  }
+#endif
+}
+
+#endif
+
diff --git a/src/video/screen.hpp b/src/video/screen.hpp
index 2dd824a92..8f634982b 100644
--- a/src/video/screen.hpp
+++ b/src/video/screen.hpp
@@ -20,7 +20,7 @@
 #define SUPERTUX_SCREEN_H
 
 #include <SDL.h>
-#include <SDL_opengl.h>
+#include <GL/gl.h>
 #include <iostream>
 
 #include <vector>
diff --git a/src/video/surface.hpp b/src/video/surface.hpp
index ea0b89b9b..bd0da7c0e 100644
--- a/src/video/surface.hpp
+++ b/src/video/surface.hpp
@@ -24,7 +24,7 @@
 #include <list>
 
 #include <SDL.h>
-#include <SDL_opengl.h>
+#include <GL/gl.h>
 
 #include "math/vector.hpp"
 #include "video/screen.hpp"
@@ -34,7 +34,6 @@ SDL_Surface* sdl_surface_from_sdl_surface(SDL_Surface* sdl_surf);
 SDL_Surface* sdl_surface_from_nothing();
 
 class SurfaceImpl;
-class SurfaceSDL;
 class SurfaceOpenGL;
 class DrawingContext;
   
@@ -83,7 +82,6 @@ public:
   SurfaceData(Color top_gradient_, Color bottom_gradient_, int w_, int h_);
   ~SurfaceData();
   
-  SurfaceSDL* create_SurfaceSDL();
   SurfaceOpenGL* create_SurfaceOpenGL();
   SurfaceImpl* create();
 };
diff --git a/src/video/texture.cpp b/src/video/texture.cpp
new file mode 100644
index 000000000..98bfc91d3
--- /dev/null
+++ b/src/video/texture.cpp
@@ -0,0 +1,116 @@
+//  $Id$
+//
+//  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 "texture.hpp"
+
+#include <GL/gl.h>
+#include <assert.h>
+#include "glutil.hpp"
+
+static inline bool is_power_of_2(int v)
+{
+  return (v & (v-1)) == 0;
+}
+
+Texture::Texture(unsigned int w, unsigned int h, GLenum glformat)
+{
+  assert(is_power_of_2(w));
+  assert(is_power_of_2(h));
+
+  this->width = w;
+  this->height = h;
+  
+  assert_gl("before creating texture");
+  glGenTextures(1, &handle);
+  
+  try {
+    glBindTexture(GL_TEXTURE_2D, handle);
+
+    glTexImage2D(GL_TEXTURE_2D, 0, glformat, width, height, 0, GL_RGBA,
+                 GL_UNSIGNED_BYTE, 0);
+
+    set_texture_params();
+  } catch(...) {
+    glDeleteTextures(1, &handle);
+    throw;
+  }
+}
+
+Texture::Texture(SDL_Surface* image, GLenum glformat)
+{
+  const SDL_PixelFormat* format = image->format;
+  if(!is_power_of_2(image->w) || !is_power_of_2(image->h))
+    throw std::runtime_error("image has no power of 2 size");
+  if(format->BitsPerPixel != 24 && format->BitsPerPixel != 32)
+    throw std::runtime_error("image has no 24 or 32 bit color depth");
+  
+  this->width = image->w;
+  this->height = image->h;
+
+  assert_gl("before creating texture");
+  glGenTextures(1, &handle);
+  
+  try {
+    GLenum sdl_format;
+    if(format->BytesPerPixel == 3)
+      sdl_format = GL_RGB;
+    else if(format->BytesPerPixel == 4)
+      sdl_format = GL_RGBA;
+    else
+      assert(false);
+
+    glBindTexture(GL_TEXTURE_2D, handle);
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, image->pitch/format->BytesPerPixel);
+    glTexImage2D(GL_TEXTURE_2D, 0, glformat, width, height, 0, sdl_format,
+            GL_UNSIGNED_BYTE, image->pixels);
+
+    assert_gl("creating texture");
+
+    set_texture_params();    
+  } catch(...) {
+    glDeleteTextures(1, &handle);
+    throw;
+  }
+}
+
+Texture::~Texture()
+{
+  glDeleteTextures(1, &handle);
+}
+
+void upload_texture(SDL_Surface* , int , int , int , int , int , int )
+{
+  // TODO
+  assert(false);
+}
+
+void
+Texture::set_texture_params()
+{
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP);
+
+  assert_gl("set texture params");
+}
+
diff --git a/src/video/texture.hpp b/src/video/texture.hpp
new file mode 100644
index 000000000..8322e3c7a
--- /dev/null
+++ b/src/video/texture.hpp
@@ -0,0 +1,47 @@
+//  $Id$
+//
+//  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.
+#ifndef __TEXTURE_HPP__
+#define __TEXTURE_HPP__
+
+#include <SDL.h>
+#include <GL/gl.h>
+
+/**
+ * This class is a very simple wrapper around a texture handle
+ */
+class Texture
+{
+public:
+  GLuint handle;
+  unsigned int width;
+  unsigned int height;
+  
+  Texture(unsigned int width, unsigned int height, GLenum glformat);
+  Texture(SDL_Surface* surface, GLenum glformat);
+  ~Texture();
+
+  void upload_texture(SDL_Surface* image, int src_x, int src_y, int dst_x, int dst_y, 
+                      int width, int height);
+private:
+  void set_texture_params();
+};
+
+
+#endif
+
diff --git a/src/worldmap.cpp b/src/worldmap.cpp
index d31d4968f..37ef7598d 100644
--- a/src/worldmap.cpp
+++ b/src/worldmap.cpp
@@ -352,8 +352,6 @@ WorldMap::WorldMap()
   tux = new Tux(this);
   add_object(tux);
     
-  leveldot_green= new Surface("images/worldmap/common/leveldot_green.png", true);
-  leveldot_red = new Surface("images/worldmap/common/leveldot_red.png", true);
   messagedot = new Surface("images/worldmap/common/messagedot.png", true);
   teleporterdot = new Surface("images/worldmap/common/teleporterdot.png", true);
 
@@ -371,11 +369,13 @@ WorldMap::~WorldMap()
       i != spawn_points.end(); ++i) {
     delete *i;
   }
-    
+  for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
+    Level& level = *i;
+    delete level.sprite;
+  }
+  
   delete tile_manager;
 
-  delete leveldot_green;
-  delete leveldot_red;
   delete messagedot;
   delete teleporterdot;
 }
@@ -516,6 +516,10 @@ WorldMap::parse_level_tile(const lisp::Lisp* level_lisp)
   level.south = true;
   level.west  = true;
 
+  std::string sprite = "leveldot";
+  level_lisp->get("sprite", sprite);
+  level.sprite = sprite_manager->create(sprite);
+
   level_lisp->get("extro-script", level.extro_script);
   level_lisp->get("next-worldmap", level.next_worldmap);
 
@@ -735,7 +739,8 @@ WorldMap::update(float delta)
       if (level->pos == tux->get_tile_pos())
         {
           sound_manager->stop_music();
-          PlayerStatus old_player_status = *player_status;
+          PlayerStatus old_player_status;
+          old_player_status = *player_status;
 
           // do a shriking fade to the level
           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
@@ -750,6 +755,7 @@ WorldMap::update(float delta)
                 level_finished = true;
                 bool old_level_state = level->solved;
                 level->solved = true;
+                level->sprite->set_action("solved");
 
                 // deal with statistics
                 level->statistics.merge(global_stats);
@@ -905,12 +911,8 @@ WorldMap::draw(DrawingContext& context)
   
   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
     {
-      if (i->solved)
-        context.draw_surface(leveldot_green,
-            Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
-      else
-        context.draw_surface(leveldot_red,
-            Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
+      const Level& level = *i;
+      level.sprite->draw(context, level.pos*32 + Vector(16, 16), LAYER_TILES+1);
     }
 
   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
@@ -1162,6 +1164,7 @@ WorldMap::loadgame(const std::string& filename)
             if (name == i->name)
             {
               i->solved = solved;
+              i->sprite->set_action(solved ? "solved" : "default");
               i->statistics.parse(*level);
               break;
             }
diff --git a/src/worldmap.hpp b/src/worldmap.hpp
index a6a1c6655..6333d34d4 100644
--- a/src/worldmap.hpp
+++ b/src/worldmap.hpp
@@ -149,6 +149,8 @@ public:
     std::string title;
     bool solved;
 
+    Sprite* sprite;
+
     /** Statistics for level tiles */
     Statistics statistics;