Fix some SonarQube code smells

src/engine/screen.cpp

@@ -621,7 +621,13 @@ namespace
             return filteredResolutions;
         }
 
-    protected:
+    private:
+        SDL_Window * _window;
+        SDL_Surface * _surface;
+        vita2d_texture * _texBuffer;
+        uint8_t * _palettedTexturePointer;
+        fheroes2::Rect _destRect;
+
         RenderEngine()
             : _window( nullptr )
             , _surface( nullptr )
@@ -739,13 +745,6 @@ namespace
             return true;
         }
 
-    private:
-        SDL_Window * _window;
-        SDL_Surface * _surface;
-        vita2d_texture * _texBuffer;
-        uint8_t * _palettedTexturePointer;
-        fheroes2::Rect _destRect;
-
         void _createPalette()
         {
             updatePalette( StandardPaletteIndexes() );

src/fheroes2/campaign/campaign_data.cpp

@@ -609,11 +609,14 @@ namespace Campaign
         case DESCENDANTS_CAMPAIGN:
         case WIZARDS_ISLE_CAMPAIGN:
         case VOYAGE_HOME_CAMPAIGN:
+            break;
         default:
+            // Did you add a new campaign? Add the case handling code for it!
+            assert( 0 );
             break;
         }
 
-        return std::vector<Campaign::CampaignAwardData>();
+        return {};
     }
 
     const std::vector<ScenarioInfoId> & CampaignData::getScenariosAfter( const ScenarioInfoId & scenarioInfo )

src/fheroes2/dialog/dialog_quickinfo.cpp

@@ -570,9 +570,9 @@ namespace
 
         case MP2::OBJ_TREE_OF_KNOWLEDGE:
             return showTreeOfKnowledgeInfo( tile, kingdom.isVisited( tile ) );
-        // These objects does not have extra text for quick info.
-        case MP2::OBJ_CAMPFIRE:
+        // These objects do not have extra text for quick info.
         case MP2::OBJ_ARTIFACT:
+        case MP2::OBJ_CAMPFIRE:
         default:
             return MP2::StringObject( objectType );
         }

src/fheroes2/h2d/h2d.cpp

@@ -1,6 +1,6 @@
 /***************************************************************************
  *   fheroes2: https://github.com/ihhub/fheroes2                           *
- *   Copyright (C) 2021 - 2023                                             *
+ *   Copyright (C) 2021 - 2024                                             *
  *                                                                         *
  *   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  *
@@ -42,28 +42,25 @@ namespace
     }
 }
 
-namespace fheroes2
+namespace fheroes2::h2d
 {
-    namespace h2d
+    H2DInitializer::H2DInitializer()
     {
-        H2DInitializer::H2DInitializer()
-        {
-            const std::string fileName{ "resurrection.h2d" };
-            std::string filePath;
-            if ( !getH2DFilePath( fileName, filePath ) ) {
-                VERBOSE_LOG( "'" << fileName << "' file cannot be found in the system." )
-                throw std::logic_error( fileName + " is not found." );
-            }
-
-            if ( !reader.open( filePath ) ) {
-                VERBOSE_LOG( "Failed to open '" << filePath << "' file." )
-                throw std::logic_error( std::string( "Cannot open file: " ) + filePath );
-            }
+        const std::string fileName{ "resurrection.h2d" };
+        std::string filePath;
+        if ( !getH2DFilePath( fileName, filePath ) ) {
+            VERBOSE_LOG( "'" << fileName << "' file cannot be found in the system." )
+            throw std::logic_error( fileName + " is not found." );
         }
 
-        bool readImage( const std::string & name, Sprite & image )
-        {
-            return readImageFromH2D( reader, name, image );
+        if ( !reader.open( filePath ) ) {
+            VERBOSE_LOG( "Failed to open '" << filePath << "' file." )
+            throw std::logic_error( std::string( "Cannot open file: " ) + filePath );
         }
     }
+
+    bool readImage( const std::string & name, Sprite & image )
+    {
+        return readImageFromH2D( reader, name, image );
+    }
 }

src/fheroes2/kingdom/kingdom.cpp

@@ -340,11 +340,12 @@ void Kingdom::RemoveHero( const Heroes * hero )
     }
 }
 
-void Kingdom::AddCastle( const Castle * castle )
+void Kingdom::AddCastle( Castle * castle )
 {
     if ( castle ) {
-        if ( castles.end() == std::find( castles.begin(), castles.end(), castle ) )
-            castles.push_back( const_cast<Castle *>( castle ) );
+        if ( castles.end() == std::find( castles.begin(), castles.end(), castle ) ) {
+            castles.push_back( castle );
+        }
 
         const Player * player = Settings::Get().GetPlayers().GetCurrent();
         if ( player && player->isColor( GetColor() ) )
@@ -906,9 +907,9 @@ void Kingdoms::AddHeroes( const AllHeroes & heroes )
     }
 }
 
-void Kingdoms::AddCastles( const AllCastles & castles )
+void Kingdoms::AddCastles( AllCastles & castles )
 {
-    for ( const Castle * castle : castles ) {
+    for ( Castle * castle : castles ) {
         assert( castle != nullptr );
 
         // Skip neutral castles and towns.

src/fheroes2/kingdom/kingdom.h

@@ -164,7 +164,7 @@ class Kingdom : public BitModes, public Control
     void RemoveHero( const Heroes * hero );
     void ApplyPlayWithStartingHero();
 
-    void AddCastle( const Castle * );
+    void AddCastle( Castle * castle );
     void RemoveCastle( const Castle * );
 
     void ActionBeforeTurn();
@@ -246,7 +246,7 @@ class Kingdoms
     int FindWins( int ) const;
 
     void AddHeroes( const AllHeroes & );
-    void AddCastles( const AllCastles & );
+    void AddCastles( AllCastles & castles );
 
     // Resets recruits in all kingdoms and returns a set of heroes that are still available for recruitment
     // in the kingdoms

src/fheroes2/spell/spell.cpp

@@ -1,6 +1,6 @@
 /***************************************************************************
  *   fheroes2: https://github.com/ihhub/fheroes2                           *
- *   Copyright (C) 2019 - 2023                                             *
+ *   Copyright (C) 2019 - 2024                                             *
  *                                                                         *
  *   Free Heroes2 Engine: http://sourceforge.net/projects/fheroes2         *
  *   Copyright (C) 2009 by Andrey Afletdinov <fheroes2@gmail.com>          *
@@ -36,7 +36,7 @@
 #include "serialize.h"
 #include "translations.h"
 
-struct spellstats_t
+struct SpellStats
 {
     const char * name;
     uint8_t spellPoints; // The number of spell points consumed/required by this spell
@@ -50,7 +50,7 @@ struct spellstats_t
 // The original resources don't have most of sprites for Mass Spells
 // so we made some tricks in AGG source file. All modified sprite IDs start from 60
 
-spellstats_t spells[] = {
+const SpellStats spells[Spell::SPELL_COUNT] = {
     //  name | spell points | movement points | min movement points | image id | extra value | description
     { "Unknown", 0, 0, 0, 0, 0, "Unknown spell." },
     { gettext_noop( "Fireball" ), 9, 0, 0, 8, 10, gettext_noop( "Causes a giant fireball to strike the selected area, damaging all nearby creatures." ) },