added render pipeline WIP

TSE_Core/src/elements/RenderPipeline.cpp

@@ -0,0 +1,40 @@
+#include "RenderPipeline.hpp"
+
+void TSE::RenderPipeline::AddRenderStep(const RenderStep &step)
+{
+    steps.push_back(step);
+}
+
+void TSE::RenderPipeline::AddRenderStepAt(const RenderStep &step, int n)
+{
+    steps.insert(steps.begin() + n, step);
+}
+
+void TSE::RenderPipeline::SetRenderStepAt(const RenderStep &step, int n)
+{
+    steps[n] = step;
+}
+
+void TSE::RenderPipeline::RemoveRenderStepAt(int n)
+{
+    auto i = steps.begin() += n;
+    steps.erase(i);
+}
+
+int TSE::RenderPipeline::GetRenderStepCount()
+{
+    return steps.size();
+}
+
+const TSE::RenderStep &TSE::RenderPipeline::GetRenderStepAt(int n)
+{
+    return steps[n];
+}
+
+TSE::RenderPipeline* TSE::RenderPipeline::CreateEmpty()
+{
+    RenderPipeline* res = new RenderPipeline();
+    RenderStep step;
+    res->AddRenderStep(step);
+    return res;
+}