added rest of basics in TSE_Core

TSE_Core/src/elements/Scene.cpp

@@ -0,0 +1,124 @@
+#include "Scene.hpp"
+
+void TSE::Scene::Render(IRenderer &rnd, const IWindow &wnd)
+{
+    int counter = 1;
+    for(auto l : layers)
+    {
+        l.second->Render(rnd);
+        if(counter++ != layers.size())
+        {
+            rnd.End(); //OPTIMIZE:
+            //takes up 13,97% of function, but only needed, if there is more then one layer
+            //possible optimizations:
+            // -remove layers
+            // -make layer calculations, in shader
+            // -make an offset, that is calculated on cpu, and then commit everything at once
+
+            // now it is better because it is only done once per frame if only one shader is used, or textures are full, or more then one layers are used
+            rnd.Flush();
+            rnd.Begin();
+            wnd.ClearDepthBuffer();
+        }
+    }
+}
+
+void TSE::Scene::DoneRender()
+{
+    IRenderer::camerasToRenderWith.clear();
+}
+
+void TSE::Scene::AddLayer(Layer *l)
+{
+    layers.push_back(std::pair(l->GetName(), l));
+}
+
+void TSE::Scene::RemoveLayer(const string &name)
+{
+    auto it = layers.begin();
+    for (int j = 0; j < layers.size(); j++)
+    {
+        if(it->first == name)
+        {
+            layers.erase(it);
+            break;
+        }
+        it++;
+    }
+}
+
+int TSE::Scene::GetLayerCount() const
+{
+    return layers.size();
+}
+
+TSE::Layer *TSE::Scene::GetLayerAt(const int &i) const
+{
+    auto it = layers.begin();
+    for (int j = 0; j < i; j++)
+    {
+        it++;
+        
+    }
+    
+    return (*it).second;
+}
+
+void TSE::Scene::SetName(const string &nname)
+{
+    name = nname;
+}
+
+TSE::string TSE::Scene::GetName()
+{
+    return name;
+}
+
+void TSE::Scene::Update()
+{
+    for(auto l : layers)
+    {
+        l.second->Update();
+    }
+}
+
+void TSE::Scene::RenameLayer(const string &oldName, const string &newName)
+{
+    for (int j = 0; j < layers.size(); j++)
+    {
+        if(layers[j].first == oldName)
+        {
+            layers[j].first = newName;
+            layers[j].second->SetName(newName);
+            break;
+        }
+    }
+}
+
+void TSE::Scene::MoveLayerUp(Layer *l)
+{
+    auto it = layers.begin();
+    for (int j = 0; j < layers.size(); j++)
+    {
+        if(it->first == l->GetName())
+        {
+            std::swap(layers[j-1], layers[j]);
+            break;
+        }
+        it++;
+    }
+}
+
+void TSE::Scene::MoveLayerDown(Layer *l)
+{
+    auto it = layers.begin();
+    for (int j = 0; j < layers.size(); j++)
+    {
+        if(it->first == l->GetName())
+        {
+            std::swap(layers[j+1], layers[j]);
+            break;
+        }
+        it++;
+    }
+}