Fixed ground spots not working after changing texture params; use UpdateTexture instead of destroy and recreate

src/graphics/engine/engine.cpp

@@ -374,6 +374,7 @@ void CEngine::ReloadAllTextures()
     m_text->FlushCache();
 
     CRobotMain::GetInstancePointer()->ReloadAllTextures(); //TODO: Remove cross-reference to CRobotMain
+    UpdateGroundSpotTextures();
     LoadAllTextures();
 }
 
@@ -1503,12 +1504,7 @@ void CEngine::DeleteAllGroundSpots()
         str << "shadow" << std::setfill('0') << std::setw(2) << s << ".png";
         std::string texName = str.str();
 
-        DeleteTexture(texName);
+        CreateOrUpdateTexture(texName, &shadowImg);
-
-        Gfx::Texture tex = m_device->CreateTexture(&shadowImg, m_defaultTexParams);
-
-        m_texNameMap[texName] = tex;
-        m_revTexNameMap[tex] = texName;
     }
 }
 
@@ -2367,8 +2363,6 @@ bool CEngine::ChangeTextureColor(const std::string& texName,
                                  Math::Point ts, Math::Point ti,
                                  Math::Point *exclude, float shift, bool hsv)
 {
-    DeleteTexture(texName);
-
     CImage img;
     if (!img.Load(srcName))
     {
@@ -2474,18 +2468,7 @@ bool CEngine::ChangeTextureColor(const std::string& texName,
         }
     }
 
-
+    CreateOrUpdateTexture(texName, &img);
-    Texture tex = m_device->CreateTexture(&img, m_defaultTexParams);
-
-    if (! tex.Valid())
-    {
-        GetLogger()->Error("Couldn't load texture '%s', blacklisting\n", texName.c_str());
-        m_texBlacklist.insert(texName);
-        return false;
-    }
-
-    m_texNameMap[texName] = tex;
-    m_revTexNameMap[tex] = texName;
 
     return true;
 }
@@ -2531,6 +2514,19 @@ void CEngine::DeleteTexture(const Texture& tex)
     m_texNameMap.erase(it);
 }
 
+void CEngine::CreateOrUpdateTexture(const std::string& texName, CImage* img)
+{
+    auto it = m_texNameMap.find(texName);
+    if (it == m_texNameMap.end())
+    {
+        LoadTexture(texName, img);
+    }
+    else
+    {
+        m_device->UpdateTexture((*it).second, Math::IntPoint(0, 0), img->GetData(), m_defaultTexParams.format);
+    }
+}
+
 void CEngine::FlushTextureCache()
 {
     m_device->DestroyAllTextures();
@@ -4135,12 +4131,7 @@ void CEngine::UpdateGroundSpotTextures()
             str << "textures/shadow" << std::setfill('0') << std::setw(2) << s << ".png";
             std::string texName = str.str();
 
-            DeleteTexture(texName);
+            CreateOrUpdateTexture(texName, &shadowImg);
-
-            Gfx::Texture tex = m_device->CreateTexture(&shadowImg, m_defaultTexParams);
-
-            m_texNameMap[texName] = tex;
-            m_revTexNameMap[tex] = texName;
         }
     }
 

src/graphics/engine/engine.h

@@ -946,6 +946,9 @@ public:
     //! Deletes the given texture, unloading it and removing from cache
     void            DeleteTexture(const Texture& tex);
 
+    //! Creates or updates the given texture with given image data
+    void            CreateOrUpdateTexture(const std::string& texName, CImage* img);
+
     //! Empties the texture cache
     void            FlushTextureCache();
 

src/level/robotmain.cpp

@@ -3398,7 +3398,7 @@ void CRobotMain::CreateScene(bool soluce, bool fixScene, bool resetObject)
                 InitEye();
                 SetMovieLock(false);
 
-                if(!resetObject)
+                if (!resetObject)
                     ChangeColor();  // changes the colors of texture
 
                 if (!m_sceneReadPath.empty())  // loading file ?
@@ -4011,9 +4011,6 @@ void CRobotMain::ChangeColor()
     ts = Math::Point(0.00f, 0.75f);
     ti = Math::Point(0.25f, 1.00f);
     m_engine->ChangeTextureColor("textures/effect02.png", m_colorRefWater, m_colorNewWater, colorRef2, colorNew2, 0.20f, -1.0f, ts, ti, nullptr, m_colorShiftWater, true);
-
-    // This loads the newly recolored textures to objects
-    m_engine->LoadAllTextures();
 }
 
 //! Calculates the distance to the nearest object