Mario: silence some warnings

sdlpp/sdlpp_mouse.cpp

@@ -20,10 +20,19 @@ SDLPP::Mouse::getMousePositionDouble( const SDLPP::Renderer &r,
         ( r.getDoubleDimensions() - Vec2D< double >( 1.0, 1.0 ) ) / 2;
     switch ( alignment_x ) {
     case SDLPP::OBJ_CENTER:
-        ret -= additions;
+        ret -= { additions.getX(), 0 };
         break;
     case SDLPP::OBJ_END:
-        ret -= 2 * additions;
+        ret -= { 2 * additions.getX(), 0 };
+    default:
+        break;
+    }
+    switch ( alignment_y ) {
+    case SDLPP::OBJ_CENTER:
+        ret -= { 0, additions.getY() };
+        break;
+    case SDLPP::OBJ_END:
+        ret -= { 0, 2 * additions.getY() };
     default:
         break;
     }

sdlpp/sdlpp_rectrenderer.cpp

@@ -146,9 +146,9 @@ void RectangleRender::updateSizeAndPosition() {
     rect.h =
         std::round( ( current.getY() + original_size.getY() ) * dimension ) -
         rect.y;
-    if(rect.w < min_size.getX())
+    if(static_cast<uint64_t>(rect.w) < min_size.getX())
         rect.w = min_size.getX();
-    if(rect.h < min_size.getY())
+    if(static_cast<uint64_t>(rect.h) < min_size.getY())
         rect.h = min_size.getY();
     if ( polygon )
         polygon->updateCollision( collisionPushX(), collisionPushY(),