diff --git a/modules/addon_console/console.lua b/modules/addon_console/console.lua
index d6c17a03..bac13f7f 100644
--- a/modules/addon_console/console.lua
+++ b/modules/addon_console/console.lua
@@ -10,7 +10,7 @@ local LabelHeight = 16
 -- private variables
 local consoleWidget
 local logLocked = false
-local commandEnv = createEnvironment()
+local commandEnv = newenv()
 local commandLineEdit
 local consoleBuffer
 local commandHistory = { }
diff --git a/modules/addon_console/console.otmod b/modules/addon_console/console.otmod
index 2a1634be..628e0e97 100644
--- a/modules/addon_console/console.otmod
+++ b/modules/addon_console/console.otmod
@@ -12,7 +12,6 @@ Module
     require 'console'
     require 'commands'
     Console.init()
-    return true
 
   onUnload: |
     Console.terminate()
diff --git a/modules/addon_playground/playground.otmod b/modules/addon_playground/playground.otmod
index 1ef3d48f..6fe92c90 100644
--- a/modules/addon_playground/playground.otmod
+++ b/modules/addon_playground/playground.otmod
@@ -3,5 +3,4 @@ Module
   autoLoad: true
   onLoad: |
     require 'playground'
-    return true
 
diff --git a/modules/client/client.lua b/modules/client/client.lua
index ca1c151b..c6577c83 100644
--- a/modules/client/client.lua
+++ b/modules/client/client.lua
@@ -1,8 +1,9 @@
-Client = { }
+Client = {}
 
 -- TODO: load and save configurations
 function Client.init()
   g_window.show()
+  g_window.setMinimumSize({ width = 550, height = 450 })
 
   -- initialize in fullscreen mode on mobile devices
   if g_window.getPlatformType() == "X11-EGL" then
@@ -19,8 +20,11 @@ function Client.init()
   end
 
   g_window.setTitle('OTClient')
-  g_window.setIcon('clienticon.png')
-  return true
+  g_window.setIcon(resolvepath('clienticon.png'))
+
+  if not g_sprites.isLoaded() or not g_thingsType.isLoaded() then
+    fatal("spr and dat files are not loaded, did you loaded them?")
+  end
 end
 
 function Client.terminate()
diff --git a/modules/client/client.otmod b/modules/client/client.otmod
index 1c6c7ef0..fa8555bb 100644
--- a/modules/client/client.otmod
+++ b/modules/client/client.otmod
@@ -16,7 +16,7 @@ Module
 
   onLoad: |
     require 'client'
-    return Client.init()
+    Client.init()
 
   onUnload: |
     Client.terminate()
diff --git a/modules/client_about/about.otmod b/modules/client_about/about.otmod
index 5dd5c9db..d6bc8b49 100644
--- a/modules/client_about/about.otmod
+++ b/modules/client_about/about.otmod
@@ -6,5 +6,3 @@ Module
 
   onLoad: |
     require 'about'
-    return true
-
diff --git a/modules/client_background/background.otmod b/modules/client_background/background.otmod
index 4b3dc707..e9de49b3 100644
--- a/modules/client_background/background.otmod
+++ b/modules/client_background/background.otmod
@@ -7,7 +7,6 @@ Module
   onLoad: |
     require 'background'
     Background.create()
-    return true
 
   onUnload:
     Background.destroy()
diff --git a/modules/client_entergame/entergame.otmod b/modules/client_entergame/entergame.otmod
index e1241bcf..8da4d8a2 100644
--- a/modules/client_entergame/entergame.otmod
+++ b/modules/client_entergame/entergame.otmod
@@ -8,7 +8,6 @@ Module
     require 'entergame'
     require 'characterlist'
     EnterGame.create()
-    return true
 
   onUnload:
     EnterGame.destroy()
diff --git a/modules/client_options/options.otmod b/modules/client_options/options.otmod
index 4722e368..7e434931 100644
--- a/modules/client_options/options.otmod
+++ b/modules/client_options/options.otmod
@@ -6,5 +6,3 @@ Module
 
   onLoad: |
     require 'options'
-    return true
-
diff --git a/modules/client_tibiafiles b/modules/client_tibiafiles
index e76fa278..81e6ef44 160000
--- a/modules/client_tibiafiles
+++ b/modules/client_tibiafiles
@@ -1 +1 @@
-Subproject commit e76fa2786e2a194375a110b700b7e2daa769f960
+Subproject commit 81e6ef44c73edc5037512cdee3b2f75a23331521
diff --git a/modules/client_topmenu/topmenu.otmod b/modules/client_topmenu/topmenu.otmod
index 4a102ac2..3a902a7f 100644
--- a/modules/client_topmenu/topmenu.otmod
+++ b/modules/client_topmenu/topmenu.otmod
@@ -7,7 +7,6 @@ Module
   onLoad: |
     require 'topmenu'
     TopMenu.create()
-    return true
 
   onUnload: |
     TopMenu.destroy()
diff --git a/modules/core/core.otmod b/modules/core/core.otmod
index 31460779..5dd9ec92 100644
--- a/modules/core/core.otmod
+++ b/modules/core/core.otmod
@@ -10,7 +10,7 @@ Module
 
   // NOTE: order does matter
   dependencies:
-    - core_scripts
+    - core_lib
     - core_fonts
     - core_styles
     - core_widgets
diff --git a/modules/core_fonts/core_fonts.otmod b/modules/core_fonts/core_fonts.otmod
index 42b7db29..8d870754 100644
--- a/modules/core_fonts/core_fonts.otmod
+++ b/modules/core_fonts/core_fonts.otmod
@@ -4,10 +4,9 @@ Module
   author: OTClient team
   website: https://github.com/edubart/otclient
   onLoad: |
-    importFont('verdana-11px-antialised')
-    importFont('verdana-11px-monochrome')
-    importFont('verdana-11px-rounded')
-    importFont('terminus-14px-bold')
-    setDefaultFont('verdana-11px-antialised')
-    return true
+    importFont 'verdana-11px-antialised'
+    importFont 'verdana-11px-monochrome'
+    importFont 'verdana-11px-rounded'
+    importFont 'terminus-14px-bold'
+    setDefaultFont 'verdana-11px-antialised'
 
diff --git a/modules/core_scripts/const.lua b/modules/core_lib/const.lua
similarity index 100%
rename from modules/core_scripts/const.lua
rename to modules/core_lib/const.lua
diff --git a/modules/core_scripts/core_scripts.otmod b/modules/core_lib/core_lib.otmod
similarity index 68%
rename from modules/core_scripts/core_scripts.otmod
rename to modules/core_lib/core_lib.otmod
index a4478608..0107de4e 100644
--- a/modules/core_scripts/core_scripts.otmod
+++ b/modules/core_lib/core_lib.otmod
@@ -1,5 +1,5 @@
 Module
-  name: core_scripts
+  name: core_lib
   description: Contains core lua classes, functions and constants used by other modules
   author: OTClient team
   website: https://github.com/edubart/otclient
@@ -7,14 +7,13 @@ Module
   onLoad: |
     require 'ext/table'
     require 'ext/string'
-    require 'util/point'
-    require 'util/size'
-    require 'util/color'
-    require 'util/rect'
+    require 'math/point'
+    require 'math/size'
+    require 'math/color'
+    require 'math/rect'
     require 'const'
     require 'util'
+    require 'globals'
     require 'dispatcher'
     require 'widget'
-    require 'ui'
     require 'effects'
-    return true
diff --git a/modules/core_scripts/dispatcher.lua b/modules/core_lib/dispatcher.lua
similarity index 100%
rename from modules/core_scripts/dispatcher.lua
rename to modules/core_lib/dispatcher.lua
diff --git a/modules/core_scripts/effects.lua b/modules/core_lib/effects.lua
similarity index 100%
rename from modules/core_scripts/effects.lua
rename to modules/core_lib/effects.lua
diff --git a/modules/core_scripts/ext/string.lua b/modules/core_lib/ext/string.lua
similarity index 100%
rename from modules/core_scripts/ext/string.lua
rename to modules/core_lib/ext/string.lua
diff --git a/modules/core_scripts/ext/table.lua b/modules/core_lib/ext/table.lua
similarity index 100%
rename from modules/core_scripts/ext/table.lua
rename to modules/core_lib/ext/table.lua
diff --git a/modules/core_scripts/ui.lua b/modules/core_lib/globals.lua
similarity index 85%
rename from modules/core_scripts/ui.lua
rename to modules/core_lib/globals.lua
index 6cff1d4b..603699d2 100644
--- a/modules/core_scripts/ui.lua
+++ b/modules/core_lib/globals.lua
@@ -1,9 +1,15 @@
--- globals
 rootWidget = g_ui.getRootWidget()
 
--- public functions
 function importStyle(otui)
-  g_ui.importStyle(resolveFileFullPath(otui, 2))
+  g_ui.importStyle(resolvepath(otui, 2))
+end
+
+function importFont(otfont)
+  g_fonts.importFont(resolvepath(otfont, 2))
+end
+
+function setDefaultFont(font)
+  g_fonts.setDefaultFont(font)
 end
 
 function displayUI(arg1, options)
@@ -14,7 +20,7 @@ function displayUI(arg1, options)
 
   -- display otui files
   if type(arg1) == 'string' then
-    local otuiFilePath = resolveFileFullPath(arg1, 2)
+    local otuiFilePath = resolvepath(arg1, 2)
     widget = g_ui.loadUI(otuiFilePath, parent)
   -- display already loaded widgets
   else
diff --git a/modules/core_scripts/hotkeys.lua b/modules/core_lib/hotkeys.lua
similarity index 100%
rename from modules/core_scripts/hotkeys.lua
rename to modules/core_lib/hotkeys.lua
diff --git a/modules/core_scripts/util/color.lua b/modules/core_lib/math/color.lua
similarity index 100%
rename from modules/core_scripts/util/color.lua
rename to modules/core_lib/math/color.lua
diff --git a/modules/core_scripts/util/point.lua b/modules/core_lib/math/point.lua
similarity index 100%
rename from modules/core_scripts/util/point.lua
rename to modules/core_lib/math/point.lua
diff --git a/modules/core_scripts/util/rect.lua b/modules/core_lib/math/rect.lua
similarity index 100%
rename from modules/core_scripts/util/rect.lua
rename to modules/core_lib/math/rect.lua
diff --git a/modules/core_scripts/util/size.lua b/modules/core_lib/math/size.lua
similarity index 100%
rename from modules/core_scripts/util/size.lua
rename to modules/core_lib/math/size.lua
diff --git a/modules/core_scripts/util.lua b/modules/core_lib/util.lua
similarity index 88%
rename from modules/core_scripts/util.lua
rename to modules/core_lib/util.lua
index b7173229..a2787709 100644
--- a/modules/core_scripts/util.lua
+++ b/modules/core_lib/util.lua
@@ -26,13 +26,26 @@ function connect(object, signalsAndSlots, pushFront)
   end
 end
 
-function createEnvironment()
+function extends(base)
+  local derived = {}
+  function derived.internalCreate()
+    local instance = base.create()
+    for k,v in pairs(derived) do
+      instance[k] = v
+    end
+    return instance
+  end
+  derived.create = derived.internalCreate
+  return derived
+end
+
+function newenv()
   local env = { }
   setmetatable(env, { __index = _G} )
   return env
 end
 
-function getCallingScriptSourcePath(depth)
+function getfsrcpath(depth)
   depth = depth or 2
   local info = debug.getinfo(1+depth, "Sn")
   local path
@@ -47,25 +60,11 @@ function getCallingScriptSourcePath(depth)
   return path
 end
 
-function resolveFileFullPath(filePath, depth)
+function resolvepath(filePath, depth)
   depth = depth or 1
   if filePath:sub(0, 1) ~= '/' then
-    return getCallingScriptSourcePath(depth+1) .. '/' .. filePath
+    return getfsrcpath(depth+1) .. '/' .. filePath
   else
     return filePath
   end
 end
-
-function extends(base)
-  local derived = {}
-  function derived.internalCreate()
-    local instance = base.create()
-    for k,v in pairs(derived) do
-      instance[k] = v
-    end
-    return instance
-  end
-  derived.create = derived.internalCreate
-  return derived
-end
-
diff --git a/modules/core_scripts/widget.lua b/modules/core_lib/widget.lua
similarity index 100%
rename from modules/core_scripts/widget.lua
rename to modules/core_lib/widget.lua
diff --git a/modules/core_styles/core_styles.otmod b/modules/core_styles/core_styles.otmod
index ff41dbaf..64707446 100644
--- a/modules/core_styles/core_styles.otmod
+++ b/modules/core_styles/core_styles.otmod
@@ -17,4 +17,3 @@ Module
     importStyle 'styles/creatures.otui'
     importStyle 'styles/popupmenus.otui'
     importStyle 'styles/comboboxes.otui'
-    return true
diff --git a/modules/core_widgets/core_widgets.otmod b/modules/core_widgets/core_widgets.otmod
index 1a096d49..6f1dc31d 100644
--- a/modules/core_widgets/core_widgets.otmod
+++ b/modules/core_widgets/core_widgets.otmod
@@ -10,5 +10,4 @@ Module
     require 'uibutton'
     require 'uilabel'
     require 'uicombobox'
-    require 'uipopupmenu'
-    return true
\ No newline at end of file
+    require 'uipopupmenu'
\ No newline at end of file
diff --git a/modules/core_widgets/uicheckbox.lua b/modules/core_widgets/uicheckbox.lua
new file mode 100644
index 00000000..bc010691
--- /dev/null
+++ b/modules/core_widgets/uicheckbox.lua
@@ -0,0 +1,8 @@
+UICheckBox = extends(UIWidget)
+
+function UICheckBox.create()
+  local checkbox = UICheckBox.internalCreate()
+  checkbox:setFocusable(false)
+  checkbox:setAlign(AlignLeft)
+  return checkbox
+end
diff --git a/modules/game/game.otmod b/modules/game/game.otmod
index e1a954f5..0d8184c3 100644
--- a/modules/game/game.otmod
+++ b/modules/game/game.otmod
@@ -16,4 +16,3 @@ Module
   onLoad: |
     require 'game'
     require 'thing'
-    return true
diff --git a/modules/game_chat/chat.otmod b/modules/game_chat/chat.otmod
index 549c8d32..43ee0ee5 100644
--- a/modules/game_chat/chat.otmod
+++ b/modules/game_chat/chat.otmod
@@ -5,6 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'chat'
-    return true
-
-
diff --git a/modules/game_healthbar/healthbar.otmod b/modules/game_healthbar/healthbar.otmod
index 4dee07e3..5f8e9974 100644
--- a/modules/game_healthbar/healthbar.otmod
+++ b/modules/game_healthbar/healthbar.otmod
@@ -5,6 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'healthbar'
-    return true
-
-
diff --git a/modules/game_inventory/inventory.otmod b/modules/game_inventory/inventory.otmod
index 2d44fa1d..e724a5e5 100644
--- a/modules/game_inventory/inventory.otmod
+++ b/modules/game_inventory/inventory.otmod
@@ -5,6 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'inventory'
-    return true
-
-
diff --git a/modules/game_outfit/outfit.otmod b/modules/game_outfit/outfit.otmod
index e31feea7..cbf3bfe8 100644
--- a/modules/game_outfit/outfit.otmod
+++ b/modules/game_outfit/outfit.otmod
@@ -5,6 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'outfit'
-    return true
-
-
diff --git a/modules/game_skills/skills.otmod b/modules/game_skills/skills.otmod
index 1b6f7c99..440357d0 100644
--- a/modules/game_skills/skills.otmod
+++ b/modules/game_skills/skills.otmod
@@ -5,4 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'skills'
-    return true
diff --git a/modules/game_textmessage/textmessage.otmod b/modules/game_textmessage/textmessage.otmod
index cdb15547..6cc75030 100644
--- a/modules/game_textmessage/textmessage.otmod
+++ b/modules/game_textmessage/textmessage.otmod
@@ -5,5 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'textmessage'
-    return true
-
diff --git a/modules/game_viplist/viplist.otmod b/modules/game_viplist/viplist.otmod
index 8ff16013..d1ffb40f 100644
--- a/modules/game_viplist/viplist.otmod
+++ b/modules/game_viplist/viplist.otmod
@@ -5,6 +5,3 @@ Module
   website: https://github.com/edubart/otclient
   onLoad: |
     require 'viplist'
-    return true
-
-
diff --git a/src/framework/application.cpp b/src/framework/application.cpp
index af006ca5..7d8fccc4 100644
--- a/src/framework/application.cpp
+++ b/src/framework/application.cpp
@@ -90,7 +90,7 @@ void Application::init(const std::vector<std::string>& args, int appFlags)
             logError("Could not setup write directory");
 
         // load configs
-        if(!g_configs.load("config.otml"))
+        if(!g_configs.load("/config.otml"))
             logInfo("Using default configurations.");
     }
 
diff --git a/src/framework/core/module.cpp b/src/framework/core/module.cpp
index f44c5254..160e3f89 100644
--- a/src/framework/core/module.cpp
+++ b/src/framework/core/module.cpp
@@ -50,7 +50,7 @@ void Module::discover(const OTMLNodePtr& moduleNode)
     if(OTMLNodePtr node = moduleNode->get("onLoad")) {
         g_lua.loadFunction(node->value(), "@" + node->source() + "[" + node->tag() + "]");
         g_lua.useValue();
-        m_loadCallback = g_lua.polymorphicPop<BooleanCallback>();
+        m_loadCallback = g_lua.polymorphicPop<SimpleCallback>();
     }
 
     // set onUnload callback
@@ -79,10 +79,8 @@ bool Module::load()
         }
     }
 
-    if(m_loadCallback && !m_loadCallback()) {
-        logError("Unable to load module '", m_name, "' because its onLoad event returned false");
-        return false;
-    }
+    if(m_loadCallback)
+        m_loadCallback();
 
     logInfo("Loaded module '", m_name, "'");
     m_loaded = true;
diff --git a/src/framework/core/module.h b/src/framework/core/module.h
index 1bb75055..6a4650bc 100644
--- a/src/framework/core/module.h
+++ b/src/framework/core/module.h
@@ -55,7 +55,7 @@ private:
     std::string m_author;
     std::string m_website;
     std::string m_version;
-    BooleanCallback m_loadCallback;
+    SimpleCallback m_loadCallback;
     SimpleCallback m_unloadCallback;
     std::list<std::string> m_dependencies;
 };
diff --git a/src/framework/core/resourcemanager.cpp b/src/framework/core/resourcemanager.cpp
index 62594cc8..a0debf80 100644
--- a/src/framework/core/resourcemanager.cpp
+++ b/src/framework/core/resourcemanager.cpp
@@ -67,7 +67,7 @@ bool ResourceManager::addToSearchPath(const std::string& path, bool insertInFron
 
 void ResourceManager::searchAndAddPackages(const std::string& packagesDir, const std::string& packageExt, bool append)
 {
-    auto files = listDirectoryFiles(resolvePath(packagesDir));
+    auto files = listDirectoryFiles(checkPath(packagesDir));
     for(const std::string& file : files) {
         if(boost::ends_with(file, packageExt))
             addToSearchPath(packagesDir + "/" + file, !append);
@@ -76,17 +76,17 @@ void ResourceManager::searchAndAddPackages(const std::string& packagesDir, const
 
 bool ResourceManager::fileExists(const std::string& fileName)
 {
-    return (PHYSFS_exists(resolvePath(fileName).c_str()) && !PHYSFS_isDirectory(resolvePath(fileName).c_str()));
+    return (PHYSFS_exists(checkPath(fileName).c_str()) && !PHYSFS_isDirectory(checkPath(fileName).c_str()));
 }
 
 bool ResourceManager::directoryExists(const std::string& directoryName)
 {
-    return (PHYSFS_isDirectory(resolvePath(directoryName).c_str()));
+    return (PHYSFS_isDirectory(checkPath(directoryName).c_str()));
 }
 
 void ResourceManager::loadFile(const std::string& fileName, std::iostream& out)
 {
-    std::string fullPath = resolvePath(fileName);
+    std::string fullPath = checkPath(fileName);
     out.clear(std::ios::goodbit);
     PHYSFS_file* file = PHYSFS_openRead(fullPath.c_str());
     if(!file) {
@@ -114,7 +114,7 @@ std::string ResourceManager::loadFile(const std::string& fileName)
 
 bool ResourceManager::saveFile(const std::string& fileName, const uchar* data, uint size)
 {
-    PHYSFS_file* file = PHYSFS_openWrite(resolvePath(fileName).c_str());
+    PHYSFS_file* file = PHYSFS_openWrite(checkPath(fileName).c_str());
     if(!file)
         return false;
 
@@ -143,13 +143,13 @@ bool ResourceManager::saveFile(const std::string& fileName, const std::string& d
 
 bool ResourceManager::deleteFile(const std::string& fileName)
 {
-    return PHYSFS_delete(resolvePath(fileName).c_str()) != 0;
+    return PHYSFS_delete(checkPath(fileName).c_str()) != 0;
 }
 
 std::list<std::string> ResourceManager::listDirectoryFiles(const std::string& directoryPath)
 {
     std::list<std::string> files;
-    auto rc = PHYSFS_enumerateFiles(resolvePath(directoryPath).c_str());
+    auto rc = PHYSFS_enumerateFiles(checkPath(directoryPath).c_str());
 
     for(int i = 0; rc[i] != NULL; i++)
         files.push_back(rc[i]);
@@ -158,8 +158,9 @@ std::list<std::string> ResourceManager::listDirectoryFiles(const std::string& di
     return files;
 }
 
-std::string ResourceManager::resolvePath(const std::string& path)
+std::string ResourceManager::checkPath(const std::string& path)
 {
+    /*
     std::string fullPath;
     if(boost::starts_with(path, "/"))
         fullPath = path;
@@ -169,7 +170,10 @@ std::string ResourceManager::resolvePath(const std::string& path)
             fullPath += scriptPath + "/";
         fullPath += path;
     }
-    return fullPath;
+    */
+    if(!(boost::starts_with(path, "/")))
+        logTraceWarning("the following file path is not fully resolved: ", path);
+    return path;
 }
 
 std::string ResourceManager::getBaseDir()
diff --git a/src/framework/core/resourcemanager.h b/src/framework/core/resourcemanager.h
index 9360f59a..54920e5f 100644
--- a/src/framework/core/resourcemanager.h
+++ b/src/framework/core/resourcemanager.h
@@ -50,7 +50,7 @@ public:
 
     std::list<std::string> listDirectoryFiles(const std::string& directoryPath = "");
 
-    std::string resolvePath(const std::string& path);
+    std::string checkPath(const std::string& path);
     std::string getBaseDir();
 };
 
diff --git a/src/framework/global.h b/src/framework/global.h
index 30ef2160..0ae020e8 100644
--- a/src/framework/global.h
+++ b/src/framework/global.h
@@ -32,11 +32,11 @@
 // additional utilities
 #include "util/types.h"
 #include "util/tools.h"
-#include "util/point.h"
-#include "util/color.h"
-#include "util/rect.h"
-#include "util/size.h"
-#include "util/matrix.h"
+#include "math/point.h"
+#include "math/color.h"
+#include "math/rect.h"
+#include "math/size.h"
+#include "math/matrix.h"
 
 // logger
 #include "core/logger.h"
diff --git a/src/framework/graphics/font.cpp b/src/framework/graphics/font.cpp
index c0c100ff..a0bebd12 100644
--- a/src/framework/graphics/font.cpp
+++ b/src/framework/graphics/font.cpp
@@ -28,7 +28,8 @@
 
 void Font::load(const OTMLNodePtr& fontNode)
 {
-    std::string textureName = fontNode->valueAt("texture");
+    OTMLNodePtr textureNode = fontNode->at("texture");
+    std::string textureFile = Fw::resolvePath(textureNode->value(), textureNode->source());
     Size glyphSize = fontNode->valueAt<Size>("glyph-size");
     m_glyphHeight = fontNode->valueAt<int>("height");
     m_yOffset = fontNode->valueAt("y-offset", 0);
@@ -36,7 +37,7 @@ void Font::load(const OTMLNodePtr& fontNode)
     m_glyphSpacing = fontNode->valueAt("spacing", Size(0,0));
 
     // load font texture
-    m_texture = g_textures.getTexture(textureName);
+    m_texture = g_textures.getTexture(textureFile);
 
     if(OTMLNodePtr node = fontNode->get("fixed-glyph-width")) {
         for(int glyph = m_firstGlyph; glyph < 256; ++glyph)
diff --git a/src/framework/graphics/particleaffector.h b/src/framework/graphics/particleaffector.h
index d785f522..dbfd2f2c 100644
--- a/src/framework/graphics/particleaffector.h
+++ b/src/framework/graphics/particleaffector.h
@@ -29,7 +29,6 @@
 class ParticleAffector {
 public:
     ParticleAffector();
-    virtual ~ParticleAffector() { dump << "ParticleAffector deleted"; }
 
     void update(double elapsedTime);
     virtual bool load(const OTMLNodePtr& node);
diff --git a/src/framework/graphics/particleemitter.h b/src/framework/graphics/particleemitter.h
index 8ddb1f04..402a96e4 100644
--- a/src/framework/graphics/particleemitter.h
+++ b/src/framework/graphics/particleemitter.h
@@ -33,7 +33,6 @@ class ParticleEmitter {
 public:
 
     ParticleEmitter(const ParticleSystemPtr& parent);
-    ~ParticleEmitter() { dump << "ParticleEmitter deleted"; }
 
     bool load(const OTMLNodePtr& node);
 
diff --git a/src/framework/graphics/particlesystem.h b/src/framework/graphics/particlesystem.h
index 1ba250ad..a24d4948 100644
--- a/src/framework/graphics/particlesystem.h
+++ b/src/framework/graphics/particlesystem.h
@@ -30,7 +30,6 @@
 class ParticleSystem : public std::enable_shared_from_this<ParticleSystem> {
 public:
     ParticleSystem();
-    ~ParticleSystem() { dump << "ParticleSystem deleted"; }
 
     bool load(const OTMLNodePtr& node);
 
diff --git a/src/framework/luafunctions.cpp b/src/framework/luafunctions.cpp
index 6dda9f67..559c9007 100644
--- a/src/framework/luafunctions.cpp
+++ b/src/framework/luafunctions.cpp
@@ -37,9 +37,6 @@ void Application::registerLuaFunctions()
     g_lua.registerClass<UIWidget>();
     g_lua.bindClassStaticFunction<UIWidget>("create", &UIWidget::create<UIWidget>);
     g_lua.bindClassMemberFunction<UIWidget>("destroy", &UIWidget::destroy);
-    g_lua.bindClassMemberFunction<UIWidget>("render", &UIWidget::render);
-    g_lua.bindClassMemberFunction<UIWidget>("renderSelf", &UIWidget::renderSelf);
-    g_lua.bindClassMemberFunction<UIWidget>("renderChildren", &UIWidget::renderChildren);
     g_lua.bindClassMemberFunction<UIWidget>("setVisible", &UIWidget::setVisible);
     g_lua.bindClassMemberFunction<UIWidget>("setEnabled", &UIWidget::setEnabled);
     g_lua.bindClassMemberFunction<UIWidget>("setPressed", &UIWidget::setPressed);
@@ -237,6 +234,7 @@ void Application::registerLuaFunctions()
     g_lua.bindClassStaticFunction("g_window", "hide", std::bind(&PlatformWindow::hide, &g_window));
     g_lua.bindClassStaticFunction("g_window", "move", std::bind(&PlatformWindow::move, &g_window, _1));
     g_lua.bindClassStaticFunction("g_window", "resize", std::bind(&PlatformWindow::resize, &g_window, _1));
+    g_lua.bindClassStaticFunction("g_window", "setMinimumSize", std::bind(&PlatformWindow::setMinimumSize, &g_window, _1));
     g_lua.bindClassStaticFunction("g_window", "setVerticalSync", std::bind(&PlatformWindow::setVerticalSync, &g_window, _1));
     g_lua.bindClassStaticFunction("g_window", "setFullscreen", std::bind(&PlatformWindow::setFullscreen, &g_window, _1));
     g_lua.bindClassStaticFunction("g_window", "setTitle", std::bind(&PlatformWindow::setTitle, &g_window, _1));
@@ -260,22 +258,14 @@ void Application::registerLuaFunctions()
     g_lua.bindClassStaticFunction("g_ui", "loadUI", std::bind(&UIManager::loadUI, &g_ui, _1, _2));
     g_lua.bindClassStaticFunction("g_ui", "getRootWidget", std::bind(&UIManager::getRootWidget, &g_ui));
 
-    /*
     // FontManager
     g_lua.registerStaticClass("g_fonts");
-    g_lua.bindClassStaticFunction("g_fonts", "releaseFonts", std::bind(&FontManager::releaseFonts, &g_fonts));
     g_lua.bindClassStaticFunction("g_fonts", "importFont", std::bind(&FontManager::importFont, &g_fonts, _1));
     g_lua.bindClassStaticFunction("g_fonts", "fontExists", std::bind(&FontManager::fontExists, &g_fonts, _1));
-    g_lua.bindClassStaticFunction("g_fonts", "getFont", std::bind(&FontManager::getFont, &g_fonts, _1));
-    g_lua.bindClassStaticFunction("g_fonts", "getDefaultFont", std::bind(&FontManager::getDefaultFont, &g_fonts));
     g_lua.bindClassStaticFunction("g_fonts", "setDefaultFont", std::bind(&FontManager::setDefaultFont, &g_fonts, _1));
-    */
 
+    // EventDispatcher
     g_lua.registerStaticClass("g_dispatcher");
     g_lua.bindClassStaticFunction("g_dispatcher", "addEvent", std::bind(&EventDispatcher::addEvent, &g_dispatcher, _1, _2));
     g_lua.bindClassStaticFunction("g_dispatcher", "scheduleEvent", std::bind(&EventDispatcher::scheduleEvent, &g_dispatcher, _1, _2));
-
-    // global functions
-    g_lua.bindGlobalFunction("importFont", std::bind(&FontManager::importFont, &g_fonts, _1));
-    g_lua.bindGlobalFunction("setDefaultFont", std::bind(&FontManager::setDefaultFont, &g_fonts, _1));
 }
diff --git a/src/framework/luascript/luainterface.cpp b/src/framework/luascript/luainterface.cpp
index 642b1f63..c4e62c95 100644
--- a/src/framework/luascript/luainterface.cpp
+++ b/src/framework/luascript/luainterface.cpp
@@ -290,9 +290,14 @@ void LuaInterface::runBuffer(const std::string& buffer, const std::string& sourc
 
 void LuaInterface::loadScript(const std::string& fileName)
 {
-    std::string buffer = g_resources.loadFile(fileName);
-    std::string source = "@" + g_resources.resolvePath(fileName);
-    loadBuffer(g_resources.loadFile(fileName), "@" + g_resources.resolvePath(fileName));
+    // resolve file full path
+    std::string filePath = fileName;
+    if(!boost::starts_with(fileName, "/"))
+        filePath = getCurrentSourcePath() + "/" + filePath;
+
+    std::string buffer = g_resources.loadFile(filePath);
+    std::string source = "@" + filePath;
+    loadBuffer(buffer, source);
 }
 
 void LuaInterface::loadFunction(const std::string& buffer, const std::string& source)
diff --git a/src/framework/util/color.h b/src/framework/math/color.h
similarity index 99%
rename from src/framework/util/color.h
rename to src/framework/math/color.h
index fbcad05b..529cdd4d 100644
--- a/src/framework/util/color.h
+++ b/src/framework/math/color.h
@@ -23,8 +23,8 @@
 #ifndef COLOR_H
 #define COLOR_H
 
-#include "types.h"
-#include "tools.h"
+#include "../util/types.h"
+#include "../util/tools.h"
 #include "../const.h"
 
 class Color
diff --git a/src/framework/util/matrix.h b/src/framework/math/matrix.h
similarity index 100%
rename from src/framework/util/matrix.h
rename to src/framework/math/matrix.h
diff --git a/src/framework/util/point.h b/src/framework/math/point.h
similarity index 99%
rename from src/framework/util/point.h
rename to src/framework/math/point.h
index ef616044..c17bd598 100644
--- a/src/framework/util/point.h
+++ b/src/framework/math/point.h
@@ -23,7 +23,7 @@
 #ifndef POINT_H
 #define POINT_H
 
-#include "types.h"
+#include "../util/types.h"
 #include <sstream>
 #include <cmath>
 
diff --git a/src/framework/util/rect.h b/src/framework/math/rect.h
similarity index 99%
rename from src/framework/util/rect.h
rename to src/framework/math/rect.h
index 0ca01c5e..38c91626 100644
--- a/src/framework/util/rect.h
+++ b/src/framework/math/rect.h
@@ -23,7 +23,7 @@
 #ifndef RECT_H
 #define RECT_H
 
-#include "types.h"
+#include "../util/types.h"
 #include <sstream>
 
 template<class T>
diff --git a/src/framework/util/size.h b/src/framework/math/size.h
similarity index 100%
rename from src/framework/util/size.h
rename to src/framework/math/size.h
diff --git a/src/framework/otml/otmldocument.cpp b/src/framework/otml/otmldocument.cpp
index 82462fa2..3abe8a2a 100644
--- a/src/framework/otml/otmldocument.cpp
+++ b/src/framework/otml/otmldocument.cpp
@@ -37,7 +37,7 @@ OTMLDocumentPtr OTMLDocument::parse(const std::string& fileName)
 {
     std::stringstream fin;
     g_resources.loadFile(fileName, fin);
-    return parse(fin, g_resources.resolvePath(fileName));
+    return parse(fin, fileName);
 }
 
 OTMLDocumentPtr OTMLDocument::parse(std::istream& in, const std::string& source)
diff --git a/src/framework/ui/uimanager.cpp b/src/framework/ui/uimanager.cpp
index 406eccc0..5205eaf5 100644
--- a/src/framework/ui/uimanager.cpp
+++ b/src/framework/ui/uimanager.cpp
@@ -57,6 +57,7 @@ void UIManager::resize(const Size& size)
 
 void UIManager::inputEvent(const InputEvent& event)
 {
+    m_isOnInputEvent = true;
     switch(event.type) {
         case Fw::KeyPressInputEvent:
             m_keyboardReceiver->onKeyPress(event.keyCode, event.keyText, event.keyboardModifiers);
@@ -78,6 +79,7 @@ void UIManager::inputEvent(const InputEvent& event)
             m_mouseReceiver->onMouseWheel(event.mousePos, event.wheelDirection);
             break;
     };
+    m_isOnInputEvent = false;
 }
 
 bool UIManager::importStyle(const std::string& file)
diff --git a/src/framework/ui/uimanager.h b/src/framework/ui/uimanager.h
index 5d351a4b..9cbe14a1 100644
--- a/src/framework/ui/uimanager.h
+++ b/src/framework/ui/uimanager.h
@@ -54,10 +54,13 @@ public:
 
     UIWidgetPtr getRootWidget() { return m_rootWidget; }
 
+    bool isOnInputEvent() { return m_isOnInputEvent; }
+
 private:
     UIWidgetPtr m_rootWidget;
     UIWidgetPtr m_mouseReceiver;
     UIWidgetPtr m_keyboardReceiver;
+    bool m_isOnInputEvent;
     std::map<std::string, OTMLNodePtr> m_styles;
 };
 
diff --git a/src/framework/ui/uiwidget.h b/src/framework/ui/uiwidget.h
index ab3d4071..73384acd 100644
--- a/src/framework/ui/uiwidget.h
+++ b/src/framework/ui/uiwidget.h
@@ -40,11 +40,13 @@ public:
 
     void destroy();
 
+protected:
     virtual void render();
     virtual void renderSelf();
     virtual void renderChildren();
 
-protected:
+    friend class UIManager;
+
     void drawBackground(const Rect& screenCoords);
     void drawBorder(const Rect& screenCoords);
     void drawImage(const Rect& screenCoords);
@@ -206,7 +208,6 @@ protected:
     virtual void onMouseRelease(const Point& mousePos, Fw::MouseButton button);
     virtual bool onMouseMove(const Point& mousePos, const Point& mouseMoved);
     virtual bool onMouseWheel(const Point& mousePos, Fw::MouseWheelDirection direction);
-    friend class UIManager;
 
 protected:
     std::string m_id;
diff --git a/src/framework/util/tools.h b/src/framework/util/tools.h
index dbb3df45..68ff79fe 100644
--- a/src/framework/util/tools.h
+++ b/src/framework/util/tools.h
@@ -76,6 +76,11 @@ std::string mkstr(const T&... args) {
     return buf.str();
 }
 
+template<typename... T>
+void throwException(const T&... args) {
+    throw Exception(Fw::mkstr(args...));
+}
+
 // used by dumper
 struct dump_util {
     ~dump_util() { std::cout << std::endl; }
@@ -270,9 +275,16 @@ std::vector<T> split(const std::string& str, const std::string& separators = " "
     return results;
 }
 
-template<typename... T>
-void throwException(const T&... args) {
-    throw Exception(Fw::mkstr(args...));
+inline std::string resolvePath(const std::string& file, std::string sourcePath) {
+    if(boost::starts_with(file, "/"))
+        return file;
+    if(!boost::ends_with(sourcePath, "/")) {
+        std::size_t slashPos = sourcePath.find_last_of("/");
+        if(slashPos == std::string::npos)
+            throwException("invalid source path '", sourcePath, "' for file '", file, "'");
+        sourcePath = sourcePath.substr(0, slashPos + 1);
+    }
+    return sourcePath + file;
 }
 
 template<typename T>
diff --git a/src/otclient/const.h b/src/otclient/const.h
index ebb43139..5f5b6dd2 100644
--- a/src/otclient/const.h
+++ b/src/otclient/const.h
@@ -23,7 +23,7 @@
 #ifndef OTCLIENT_CONST_H
 #define OTCLIENT_CONST_H
 
-#include <framework/util/color.h>
+#include <framework/math/color.h>
 
 namespace Otc
 {
diff --git a/src/otclient/core/outfit.h b/src/otclient/core/outfit.h
index 2dc2f30a..63edb687 100644
--- a/src/otclient/core/outfit.h
+++ b/src/otclient/core/outfit.h
@@ -23,7 +23,7 @@
 #ifndef OUTFIT_H
 #define OUTFIT_H
 
-#include <framework/util/color.h>
+#include <framework/math/color.h>
 
 class Outfit
 {
diff --git a/src/otclient/core/spritemanager.cpp b/src/otclient/core/spritemanager.cpp
index 60826acf..7c3ecd1a 100644
--- a/src/otclient/core/spritemanager.cpp
+++ b/src/otclient/core/spritemanager.cpp
@@ -39,6 +39,7 @@ bool SpriteManager::load(const std::string& file)
         m_signature = Fw::getU32(m_fin);
         m_spritesCount = Fw::getU16(m_fin);
         m_sprites.resize(m_spritesCount);
+        m_loaded = true;
         return true;
     } catch(Exception& e) {
         logError("Failed to load sprites from '", file, "': ", e.what());
diff --git a/src/otclient/core/spritemanager.h b/src/otclient/core/spritemanager.h
index 38c49416..130254de 100644
--- a/src/otclient/core/spritemanager.h
+++ b/src/otclient/core/spritemanager.h
@@ -38,10 +38,12 @@ public:
     int getSpritesCount() { return m_spritesCount; }
 
     TexturePtr getSpriteTexture(int id);
+    bool isLoaded() { return m_loaded; }
 
 private:
     TexturePtr loadSpriteTexture(int id);
 
+    Boolean<false> m_loaded;
     uint32 m_signature;
     uint16 m_spritesCount;
     std::stringstream m_fin;
diff --git a/src/otclient/core/thingstype.cpp b/src/otclient/core/thingstype.cpp
index 5b50a6ca..cc48a30f 100644
--- a/src/otclient/core/thingstype.cpp
+++ b/src/otclient/core/thingstype.cpp
@@ -48,6 +48,7 @@ bool ThingsType::load(const std::string& file)
                 parseThingType(fin, m_things[i][id]);
         }
 
+        m_loaded = true;
         return true;
     } catch(Exception& e) {
         logError("Failed to load dat from '", file, "': ", e.what());
diff --git a/src/otclient/core/thingstype.h b/src/otclient/core/thingstype.h
index 5691295d..2c8264db 100644
--- a/src/otclient/core/thingstype.h
+++ b/src/otclient/core/thingstype.h
@@ -47,10 +47,11 @@ public:
     ThingType *getThingType(uint16 id, Categories category);
 
     uint32 getSignature() { return m_signature; }
+    bool isLoaded() { return m_loaded; }
 
 private:
     uint32 m_signature;
-
+    Boolean<false> m_loaded;
     ThingTypeList m_things[LastCategory];
     static ThingType m_emptyThingType;
 };
diff --git a/src/otclient/luafunctions.cpp b/src/otclient/luafunctions.cpp
index 7b260238..4a96e5af 100644
--- a/src/otclient/luafunctions.cpp
+++ b/src/otclient/luafunctions.cpp
@@ -22,9 +22,15 @@ void OTClient::registerLuaFunctions()
 {
     Application::registerLuaFunctions();
 
+    g_lua.registerStaticClass("g_thingsType");
+    g_lua.bindClassStaticFunction("g_thingsType", "load", std::bind(&ThingsType::load, &g_thingsType, _1));
+    g_lua.bindClassStaticFunction("g_thingsType", "isLoaded", std::bind(&ThingsType::isLoaded, &g_thingsType));
+
+    g_lua.registerStaticClass("g_sprites");
+    g_lua.bindClassStaticFunction("g_sprites", "load", std::bind(&SpriteManager::load, &g_sprites, _1));
+    g_lua.bindClassStaticFunction("g_sprites", "isLoaded", std::bind(&SpriteManager::isLoaded, &g_sprites));
+
     g_lua.bindGlobalFunction("exit", std::bind(&Application::exit, g_app));
-    g_lua.bindGlobalFunction("importDat", std::bind(&ThingsType::load, &g_thingsType, _1));
-    g_lua.bindGlobalFunction("importSpr", std::bind(&SpriteManager::load, &g_sprites, _1));
     g_lua.bindGlobalFunction("getOufitColor", Outfit::getColor);
 
     g_lua.registerClass<ProtocolLogin, Protocol>();
diff --git a/src/otclient/util/position.h b/src/otclient/util/position.h
index 2e63df10..41667ade 100644
--- a/src/otclient/util/position.h
+++ b/src/otclient/util/position.h
@@ -25,7 +25,7 @@
 
 #include <otclient/const.h>
 #include <framework/util/types.h>
-#include <framework/util/point.h>
+#include <framework/math/point.h>
 
 class Position
 {
diff --git a/tools/katepart-syntax/lua.xml b/tools/katepart-syntax/lua.xml
index 66415ca3..9a12ec14 100644
--- a/tools/katepart-syntax/lua.xml
+++ b/tools/katepart-syntax/lua.xml
@@ -128,6 +128,9 @@
       <item> extends </item>
       <item> print </item>
       <item> fatal </item>
+      <item> newenv </item>
+      <item> getfsrcpath </item>
+      <item> resolvepath </item>
 
       <item> scheduleEvent </item>
       <item> addEvent </item>