From 08d3c0e7410d7dde59d2d981c77ef7ce1090b80d Mon Sep 17 00:00:00 2001
From: Ingo Ruhnke <grumbel@gmail.com>
Date: Sun, 10 Aug 2014 18:31:27 +0200
Subject: [PATCH] Cleaned up the World class a bit

---
 src/supertux/world.cpp | 19 ++++++-------------
 src/supertux/world.hpp | 19 +++++--------------
 2 files changed, 11 insertions(+), 27 deletions(-)

diff --git a/src/supertux/world.cpp b/src/supertux/world.cpp
index 05470f89a..05acd7390 100644
--- a/src/supertux/world.cpp
+++ b/src/supertux/world.cpp
@@ -31,14 +31,11 @@
 #include "util/string_util.hpp"
 #include "worldmap/worldmap.hpp"
 
-World* World::current_ = NULL;
-
 World::World() :
-  worldname(),
+  m_worldmap_filename(),
   levels(),
   basedir(),
   savegame_filename(),
-  state_table(),
   world_thread(),
   title(),
   description(),
@@ -56,8 +53,6 @@ World::World() :
 World::~World()
 {
   sq_release(scripting::global_vm, &world_thread);
-  if(current_ == this)
-    current_ = NULL;
 }
 
 void
@@ -86,7 +81,7 @@ void
 World::load(const std::string& filename)
 {
   basedir = FileSystem::dirname(filename);
-  worldname = basedir + "worldmap.stwm";
+  m_worldmap_filename = basedir + "worldmap.stwm";
 
   lisp::Parser parser;
   const lisp::Lisp* root = parser.parse(filename);
@@ -135,8 +130,6 @@ World::load(const std::string& filename)
 void
 World::run()
 {
-  current_ = this;
-
   // create new squirrel table for persistent game state
   HSQUIRRELVM vm = scripting::global_vm;
 
@@ -286,17 +279,17 @@ World::get_num_solved_levels() const
     }
     else
     {
-      sq_pushstring(vm, worldname.c_str(), -1);
+      sq_pushstring(vm, m_worldmap_filename.c_str(), -1);
       if(SQ_FAILED(sq_get(vm, -2)))
       {
-        log_warning << "failed to get state.worlds['" << worldname << "']" << std::endl;
+        log_warning << "failed to get state.worlds['" << m_worldmap_filename << "']" << std::endl;
       }
       else
       {
         sq_pushstring(vm, "levels", -1);
         if(SQ_FAILED(sq_get(vm, -2)))
         {
-          log_warning << "failed to get state.worlds['" << worldname << "'].levels" << std::endl;
+          log_warning << "failed to get state.worlds['" << m_worldmap_filename << "'].levels" << std::endl;
         }
         else
         {
@@ -305,7 +298,7 @@ World::get_num_solved_levels() const
             sq_pushstring(vm, level.name.c_str(), -1);
             if(SQ_FAILED(sq_get(vm, -2)))
             {
-              log_warning << "failed to get state.worlds['" << worldname << "'].levels['"
+              log_warning << "failed to get state.worlds['" << m_worldmap_filename << "'].levels['"
                           << level.name << "']" << std::endl;
             }
             else
diff --git a/src/supertux/world.hpp b/src/supertux/world.hpp
index 4200ed984..f9764a4a1 100644
--- a/src/supertux/world.hpp
+++ b/src/supertux/world.hpp
@@ -21,20 +21,13 @@
 #include <string>
 #include <vector>
 
+#include "util/currenton.hpp"
+
 class PlayerStatus;
 
-class World
+class World : public Currenton<World>
 {
 public:
-  static World* current()
-  {
-    return current_;
-  }
-
-private:
-  static World* current_;
-
-public:
   World();
   ~World();
 
@@ -50,13 +43,13 @@ public:
   const std::string& get_level_filename(unsigned int i) const;
   const std::string& get_basedir() const;
   const std::string& get_title() const;
-  /** returns player status */
+
   PlayerStatus* get_player_status() const { return player_status.get(); }
 
   void run();
 
 private:
-  std::string worldname;
+  std::string m_worldmap_filename;
   struct Level
   {
     Level() : fullpath(), name() {}
@@ -67,8 +60,6 @@ private:
   std::vector<Level> levels;
   std::string basedir;
   std::string savegame_filename;
-  /// squirrel table that saves persistent state (about the world)
-  HSQOBJECT state_table;
   HSQOBJECT world_thread;
   std::string title;
   std::string description;
-- 
2.11.0