SDLPP: add option to specify render object alignment

sdlpp/sdlpp_rectrenderer.cpp

@@ -158,10 +158,6 @@ void RectangleRender::updateSizeAndPosition() {
 SDL_Rect RectangleRender::getRect() {
     return rect;
 }
-void RectangleRender::centerX() {
-    centerx = true;
-    updateSizeAndPosition();
-}
 std::shared_ptr< RenderObject > RectangleRender::copySelf() {
     auto ret = std::make_shared< RectangleRender >( *this );
     copyTo( ret );
@@ -173,23 +169,4 @@ void RectangleRender::copyTo( std::shared_ptr< RenderObject > other ) {
 std::string RectangleRender::getColor() const {
     return color;
 }
-
-void RectangleRender::updateXY() {
-    if ( !centerx ) {
-        current = original;
-        return;
-    }
-    auto width = renderer->getWidth();
-    auto height = renderer->getHeight();
-    double x_, y_;
-    if ( width > height ) {
-        auto multiplier =
-            static_cast< double >( width ) / static_cast< double >( height );
-        x_ = original.getX() + static_cast< double >( multiplier - 1 ) / 2;
-    } else {
-        x_ = original.getX();
-    }
-    y_ = original.getY();
-    current = { x_, y_ };
-}
 } // namespace SDLPP