* Changed log level in sound module

* Fixed warnings in sound module
* Fixed problem with map loading when locale with different number separator

src/app/app.cpp

@@ -316,7 +316,7 @@ bool CApplication::Create()
     langStr += locale;
     strcpy(S_LANGUAGE, langStr.c_str());
     putenv(S_LANGUAGE);
-    setlocale(LC_ALL, "");
+    setlocale(LC_ALL, locale.c_str());
     GetLogger()->Debug("Set locale to '%s'\n", locale.c_str());
 
     bindtextdomain("colobot", COLOBOT_I18N_DIR);

src/object/robotmain.cpp

@@ -3793,6 +3793,8 @@ void CRobotMain::CreateScene(bool soluce, bool fixScene, bool resetObject)
     int rankObj = 0;
     int rankGadget = 0;
     CObject* sel = 0;
+    char *locale = setlocale(LC_NUMERIC, nullptr);
+    setlocale(LC_NUMERIC, "C");
 
     while (fgets(line, 500, file) != NULL)
     {
@@ -4526,6 +4528,8 @@ void CRobotMain::CreateScene(bool soluce, bool fixScene, bool resetObject)
     }
     m_dialog->SetSceneRead("");
     m_dialog->SetStackRead("");
+    
+    setlocale(LC_NUMERIC, locale);
 }
 
 //! Creates an object of decoration mobile or stationary

src/sound/oalsound/alsound.cpp

@@ -259,7 +259,7 @@ bool ALSound::SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded)
     int lowerOrEqual = -1;
     for (auto it : mChannels) {
         if (it.second->GetPriority() < priority) {
-            GetLogger()->Info("Sound channel with lower priority will be reused.");
+            GetLogger()->Debug("Sound channel with lower priority will be reused.");
             channel = it.first;
             return true;
         }
@@ -269,7 +269,7 @@ bool ALSound::SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded)
 
     if (lowerOrEqual != -1) {
         channel = lowerOrEqual;
-        GetLogger()->Info("Sound channel with lower or equal priority will be reused.");
+        GetLogger()->Debug("Sound channel with lower or equal priority will be reused.");
         return true;
     }
 
@@ -457,11 +457,11 @@ void ALSound::FrameMove(float delta)
         if (it.second->GetEnvelope().totalTime <= it.second->GetCurrentTime()) {
 
             if (oper.nextOper == SOPER_LOOP) {
-                GetLogger()->Info("Replay.\n");
+                GetLogger()->Trace("Sound oper: replay.\n");
                 it.second->SetCurrentTime(0.0f);
                 it.second->Play();
             } else {
-                GetLogger()->Info("Next.\n");
+                GetLogger()->Trace("Sound oper: next.\n");
                 it.second->SetStartAmplitude(oper.finalAmplitude);
                 it.second->SetStartFrequency(oper.finalFrequency);
                 it.second->PopEnvelope();

src/sound/oalsound/buffer.cpp

@@ -36,7 +36,7 @@ Buffer::~Buffer() {
 bool Buffer::LoadFromFile(std::string filename, Sound sound) {
     mSound = sound;
 
-    GetLogger()->Info("Loading audio file: %s\n", filename.c_str());
+    GetLogger()->Debug("Loading audio file: %s\n", filename.c_str());
     mBuffer = alutCreateBufferFromFile(filename.c_str());
 
     ALenum error = alutGetError();
@@ -53,7 +53,7 @@ bool Buffer::LoadFromFile(std::string filename, Sound sound) {
     alGetBufferi(mBuffer, AL_CHANNELS, &channels);
     alGetBufferi(mBuffer, AL_FREQUENCY, &freq);
 
-    mDuration =  (ALfloat)size / channels / bits / 8 / (ALfloat)freq;
+    mDuration =  static_cast<ALfloat>(size) / channels / bits / 8 / static_cast<ALfloat>(freq);
 
     mLoaded = true;
     return true;

src/sound/oalsound/channel.cpp

@@ -227,7 +227,7 @@ void Channel::AdjustFrequency(float freq) {
 
 
 void Channel::AdjustVolume(float volume) {
-    SetVolume(mStartAmplitude * (float) volume);
+    SetVolume(mStartAmplitude * volume);
 }